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Diamond core drilling for stratigraphic logging, geophysical logging and pore fluid analysis in the Lower Balonne area, Southern Queensland, Australia
March 2003
Grant Jones
Diamond core drilling in the Lower Balonne ii
© Commonwealth of Australia 2004 This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from the Commonwealth available from the Department of Communications, Information Technology and the Arts. Requests and inquiries concerning reproduction and rights should be addressed to the Commonwealth Copyright Administration, Intellectual Property Branch, Department of Communications, Information Technology and the Arts, GPO Box 2154, Canberra ACT 2601 or at http://www.dcita.gov.au/cca.
The Australian Government acting through the Bureau of Rural Sciences has exercised due care and skill in the preparation and compilation of the information and data set out in this publication. Notwithstanding, the Bureau of Rural Sciences, its employees and advisers disclaim all liability, including liability for negligence, for any loss, damage, injury, expense or cost incurred by any person as a result of accessing, using or relying upon any of the information or data set out in this publication to the maximum extent permitted by law.
Postal address: Bureau of Rural Sciences GPO Box 858 Canberra, ACT 2601
Internet: http://www.affa.gov.au/brs
Diamond core drilling in the Lower Balonne iii
Technical Clarification
Revision of Airborne Electromagnetic (AEM) imagery The current report was produced before the final calibrated AEM data for the Lower Balonne Airborne Geophysics Program was made available in September 2003.
The current report uses the preliminary uncalibrated AEM data of September 2002.
Revision of stratigraphic nomenclature for the Lower Balonne area The technical Working Group (TWG) for the Lower Balonne Airborne Geophysics Program adopted a revised stratigraphic nomenclature for the Lower Balonne area in May 2004.
The current report, which was produced before this revision was adopted, uses a slightly different nomenclature, as described in the following tables:
Table 1. Nomenclature for alluvium.
Nomenclature used in this report Corresponding revised nomenclature Unit symbol Description Unit symbol Description
Q Quaternary Cz Cainozoic
T Tertiary Cz Cainozoic
Table 2. Nomenclature for weathering zones in the Griman Creek Formation.
Nomenclature used in this report Corresponding revised nomenclature Unit symbol Weathering zone Unit symbol Weathering zone
Kum Upper Mottled Zone umKg upper mottled zone
Kbl Bleached Zone blKg bleached zone
Klm Lower Mottled Zone lmKg lower mottled zone
Kmm Marginal Marine Zone Kg unweathered Griman Creek Formation
Diamond core drilling in the Lower Balonne iv
Diamond core drilling in the Lower Balonne v
Contents
1 Introduction.......................................................................................................................1
2 4C Diamond Core.............................................................................................................1
3 Sampling...........................................................................................................................3
4 Down-hole geophysics......................................................................................................4
5 Air Hammer Drilling...........................................................................................................5
6 Piezometer Construction ..................................................................................................6
References ..............................................................................................................................7
Appendix A: Plots of the Geophysical Logs .............................................................................9 LB01: Anchorage .................................................................................................................9 LB02: Mitchell Rd (Prickle Farm)........................................................................................10 LB03: Powrunna Rd ...........................................................................................................11 LB04: Wombil Downs .........................................................................................................12 LB05: Munro Rd (St George Irrigation Area) ......................................................................13 LB06: Yamburgan ..............................................................................................................14 LB07: Jakelwar Rd .............................................................................................................15 LB08: Cubbie .....................................................................................................................16 LB09: Ballangarie ...............................................................................................................17 LB10: North Weengallon ....................................................................................................18
Appendix B: Unedited Field Lithologic Logs...........................................................................19 LB01: Anchorage ...............................................................................................................19 LB02: Mitchell Rd (Prickle Farm)........................................................................................20 LB03: Powrunna Rd ...........................................................................................................23 LB04: Wombil Downs .........................................................................................................25 LB05: Munro Rd (St George Irrigation Area) ......................................................................26 LB06: Yamburgan ..............................................................................................................27 LB07: Jakelwar Rd .............................................................................................................28 LB08: Cubbie .....................................................................................................................29 LB09: Ballangarie ...............................................................................................................32 LB10: North Weengallon ....................................................................................................33
Appendix C: Colour, Texture, Mineralogy and Moisture Characteristics .............34 LB01: Anchorage ...............................................................................................................34 LB02: Mitchell Rd (Prickle Farm)........................................................................................35 LB03: Powrunna Rd ...........................................................................................................38 LB04: Wombil Downs .........................................................................................................40 LB05: Munro Rd (St George Irrigation Area) ......................................................................41 LB06: Yamburgan ..............................................................................................................42 LB07: Jakelwar Rd .............................................................................................................43 LB08: Cubbie .....................................................................................................................44 LB09: Ballangarie ...............................................................................................................47 LB10: North Weengallon ....................................................................................................48
Diamond core drilling in the Lower Balonne vi
Figures
Figure 1: Coring operations and sampling ...............................................................................3
Figure 2: Auslog-Scintrex system logging an existing bore (Deepwater4) ...............................4
Figure 3: Air hammer drilling at LB11, water intersected..........................................................5
Figure 4: Cleaning and development of bore at site LB05 .......................................................7
Tables
Table 1: Locations of the ten diamond cored holes..................................................................2
Table 2: Stratigraphic interpretation of the ten diamond cored holes .......................................2
Table 3: Details of the three piezometers installed ..................................................................6
Diamond core drilling in the Lower Balonne 1
1 Introduction
The purpose of the coring program was to undertake the drilling of bores to provide accurate samples of rock, soil and water for geochemical and hydrogeological assessment and to allow the measurement of electrical conductivity and definition of salt storage and flow in a clear, open hole or a PVC-cased hole, depending on lithology. The preferred technique was PQ Core (80mm), which was to be sampled in the field immediately after withdrawal from the core barrel so to ensure the integrity of the pore fluids for subsequent laboratory analysis.
The coring program provided material for extracting pore fluids and also aided detailed geological interpretation. PQ was selected to provide a large enough core to split and then sample the pristine material in the middle. This is essential for reliable pore fluid analysis, as coring requires the use of drilling mud (water mixed with a drilling lubricant) that often penetrates the core. A large diameter core also facilitates drilling and sample recovery.
Tenders were called for coring at St George in Late September 2002. A restricted tender was undertaken because of the projects time constraints and the specialist drilling techniques needed. The successful tenders, Daly Brothers Pty Ltd, persuaded BRS to choose 4C Core (100mm), as a wider core would provide increased sample recovery and better hole stability due to dry blocking being used rather than wireline recovery.
Additional to coring, the tender required air hammer or air rotary (80mm) drilling of shallow (less than 30 metres), normally consolidated or alluvial/colluvial sediments. This program was to provide the material for EC 1:5 analysis and the open holes were used to conduct slug tests. A multiple number of holes were to be drilled at a given site, with the capacity to case off unstable sections if required.
Piezometer construction (50 mm slotted PVC) was also added to the tender, as several bores were required to be constructed in areas where QDNR observation piezometers did not exist.
2 4C Diamond Core
Coring began on the 17th October and finished on the 9th of November 2002 (24 days) totalling 598.9 metres at 10 locations (Table 1). Coring uses a high rotation speed and slow downward pressure (pull-down), which makes the procedure much slower than air-core drilling. On average, 35 metres of core were retrieved per day. The Bureau of Rural Sciences conducted all geological interpretation (using Field Marshal software), photographs and sampling on site. Lithologic logs are shown in Appendix B. Field logged colour, texture, mineralogy and moisture characteristics are shown in Appendix C. Stratigraphic interpretation is shown in Table 2.
Core was recovered by dry blocking after the completion of each drill run (1.5 or 3 metres), which also made the process slower as the hole became deeper. Excellent core recovery was achieved, apart from some cohesionless sections in LB03, which comprised several thick (2-3 metre) dry sand units. Core recovery was aided by application of drilling mud, which also stabilised the hole. Polymer based muds (BIO-VIS, Polyplus RD and CARBOCELL 400) were used and mixed in above ground sumps. Mud weights varied depending on the material being recovered; generally a thick consistency (10 seconds) was used. At times a bentonite (MAX-CEL) mud was used to stabilise the hole, especially in LB03 due to dry collapsing sands.
Diamond core drilling in the Lower Balonne 2
Table 1: Locations of the ten diamond cored holes
Hole ID NRM&E RN 1
Easting Northing Location Total depth (m)
LB01 42220206 656770 6912774 Anchorage 60.0
LB02 42240071 646920 6918327 Mitchell Rd (Prickle Farm) 59.3
LB03 42220207 634750 6902390 Powrunna Rd. 59.8
LB04 42220208 592790 6864078 Wombil Downs 61.0
LB05 42220209 667393 6878738 Munro Rd (St George Irrigation Area)
59.3
LB06 42220210 639267 6846769 Yamburgan 59.5
LB07 42220211 635004 6886243 Jakelwar Rd. 57.0
LB08 42220212 601580 6835063 Cubbie 69.0
LB09 41720070 669267 6855008 Ballangarie 60.0
LB10 41720071 703154 6873502 North Weengallon 54.0 1 NRM&E RN = Queensland Department of Natural Resources, Mines and Energy Groundwater database Registered Number for each hole (NRM&E, 2002)
Table 2: Stratigraphic interpretation of the ten diamond cored holes
Griman Creek Formation
Hole ID Cainozoic Sediments
Cz
upper mottled zone
Kum
bleached zone
Kbl
lower mottled zone
Klm
marginal marine zone
Kmm
LB01 0 - 3.9 3.9 – 8.2 8.2 – 18.0 18.0 – 50.8 50.8 – 60.0 +
LB02 0 - 59.3 +
LB03 0 - 59.8 +
LB04 0 – 61.0 +
LB05 0 – 19.2 19.2 – 24.4 24.4 – 50.0 50.0 – 59.3 +
LB06 0 – 6.0 6.0 – 9.3 9.3 – 23.9 23.9 – 49.6 49.6 – 59.5 +
LB07 0 – 32.9 32.9 – 40.8 40.8 – 45.4 45.4 – 57.0 +
LB08 0 – 69.0 +
LB09 0 – 22.8 22.8 – 31.7 31.7 – 47.0 47.0 – 60.0 +
LB10 0 – 7.9 7.9 – 9.1 9.1 – 12.7 12.7 – 44.8 44.8 – 54.0 +
Diamond core drilling in the Lower Balonne 3
3 Sampling
Core was returned inside split 100mm diameter inner barrels. A half PVC split was used to roll out the core. The top of the core was cleaned of drilling mud then measured by the on-site geologist to determine if any sample had been lost or damaged. Second half PVC was placed onto the core then the whole core cut length-ways in half. One half was photographed, sealed and archived in plastic wrap. The other half was sampled for moisture content, pore fluid chemistry and bulk density and geologically logged (the side cleaned of drilling mud), then the remainder was left on-site for disposal. Michael Turner, a PhD student from the Australian National University took several samples for permeability measurements as negotiated with BRS. These samples were taken as full (100 diameter) uncut core before any onsite sampling took place.
Samples were stored on-site in portable refrigerators before being relocated to larger refrigerated storage. Three samples were collected in vials every half metre and/or at every facies change (depending on recovery) EC 1:5, moisture-1 x 185ml vial and pore fluid analysis-2 x 85ml vials. Extraction of pore fluids, EC and moisture analysis was conducted in BRS laboratories at Symonston ACT. Archived core is held at QNR sheds in St George.
Figure 1: Coring operations and sampling
Diamond core drilling in the Lower Balonne 4
4 Down-hole geophysics
Existing bores were geophysically logged prior and during the program as well as the new core sites. At each new drilling site, logs were completed close as possible to the EOH depth. For each bore, two logs were obtained using two probes: an EM39 conductivity log (with the Auslog-Scintrex A34); and a gamma log measured with a slimline 33mm probe (Auslog-Scintrex A75). The main emphasis was placed on the conductivity log, which was always run first in case the hole collapsed during the process. If collapse occurred before a full conductivity log was obtained, the hole was cleaned, then re-logged. Logs were run down-hole and up-hole with values recorded every 5 centimetres, generating a smooth and accurate log. The up-hole log is used as the final version, as the tool returns under its own weight, providing a more accurate depth reading.
Conductivity is measured in milliSiemens per metre (mS/m) with calibration rings (300 mS/m, 1000 mS/m and 3000 mS/m) being used to calibrate the instrument prior to logging. A polynomial stretch is applied between these three points by the AUSWIN software (software used for the Auslog-Scintrex system).
The procedure for running the gamma instrument is the same for the conductivity logger. The gamma tool is smaller than the conductivity probe, producing an offset of 50 cm in the readings at the bottom of the hole. The gamma obtained by this tool is a measure of natural gamma radiation and is recorded in counts per second (cps), and these values are calibrated, converting values into API.
Figure 2: Auslog-Scintrex system logging an existing bore (Deepwater4)
Diamond core drilling in the Lower Balonne 5
5 Air Hammer Drilling
Air hammer and RAB (Rotary Air Blast) methods were used to drill slug test holes. These methods are the cheapest and quickest method used for geo-technical investigation. The method uses compressed air blown towards the cutting face, which forces the sample upwards to the surface. Contamination of samples can occur during this process, however the method was required to penetrate siliceous zones and to provide a clean hole to conduct slug tests. Samples produced however were also used for lithological and geochemical analysis.
Samples were collected every metre in sealed, plastic bags (to preserve moisture). An archive chip tray was also collected, then geologically logged on site. The only samples not collected and/or chemically tested were contaminated, generally when water injection was necessary where the bore intersected sandy, water-bearing layers. On average, two sites (up to 5 nested holes per site) were completed per day.
Figure 3: Air hammer drilling at LB11, water intersected
Diamond core drilling in the Lower Balonne 6
6 Piezometer Construction
Three piezometers were installed from the ten locations (Table 3). All methods conform to the minimum construction requirements for water bores in Australia (ARMCANZ 1997).
PVC (Unplasticised Polyvinyl Chloride)
Bores were constructed using Class 9, 2 inch (50mm) UPVC, with a three metre pre-slotted (1mm) length used for screen intervals.
Gravel Packing
A gravel pack or backfill gravel was placed at the bottom of the hole. The gravel consisted of washed, well-rounded quartz gravel (10mm) containing no shale, mica, clay, dirt, loam or organic material.
Piezometer Development
All bores were developed (cleaned) using compressed air. Developing the bore cleans out the drilling mud so that there is hydraulic connection between the slotted interval and the aquifer. The process draws material through the slots, which increases the permeability at that interval. It is recommended that further developing by pumping or bailing be conducted, as the bore will need to settle after initial development.
Table 3: Details of the three piezometers installed
Hole
ID
Easting Northing Slotted interval (m)
Total depth (m)
Standing water level
(m)
LB01 656770 6912774 45.0-48.0 51.0 24.45
LB05 667393 6878738 42.0-45.0 45.0 31.62
LB09 669267 6855008 25.8-28.8 28.8 ?
Diamond core drilling in the Lower Balonne 7
Figure 4: Cleaning and development of bore at site LB05
References
ARMCANZ 1997, Minimum Construction Requirements for Water Bores in Australia, Agriculture and Resource Management Council of Australia and New Zealand,86p
NRM&E, 2002, Groundwater Database: Data Dictionary and Standards. Version 4. Queensland Department of Natural Resources and Mines.
Diamond core drilling in the Lower Balonne 8
Diamond core drilling in the Lower Balonne 9
Appendix A: Plots of the Geophysical Logs
LB01: Anchorage
Diamond core drilling in the Lower Balonne 10
LB02: Mitchell Rd (Prickle Farm)
Diamond core drilling in the Lower Balonne 11
LB03: Powrunna Rd
Diamond core drilling in the Lower Balonne 12
LB04: Wombil Downs
Diamond core drilling in the Lower Balonne 13
LB05: Munro Rd (St George Irrigation Area)
Diamond core drilling in the Lower Balonne 14
LB06: Yamburgan
Diamond core drilling in the Lower Balonne 15
LB07: Jakelwar Rd
Diamond core drilling in the Lower Balonne 16
LB08: Cubbie
Diamond core drilling in the Lower Balonne 17
LB09: Ballangarie
Diamond core drilling in the Lower Balonne 18
LB10: North Weengallon
Diamond core drilling in the Lower Balonne 19
Appendix B: Unedited Field Lithologic Logs
All coordinates are given as Easting, Northing, Zone 55 of the Map Grid of Australia 1999 (MGA99). Datum: GDA94. Holes were logged by: Grant Jones
LB01: Anchorage Coordinates: 656770, 6912774 NRM&E Register No : 42220206 Date Logged: 17/10/2002 – 19/10/2002
Bore ID
From (m)
To (m)
Lithology
LB01 0 1.25 Br grey highly plastic clay large blocky dull fabric, min sands
LB01 1.25 2.1 Large blocky peds, sily clay with MN
LB01 2.1 3.09 massive plastic silty clay with MN and very minor FEOX mottles
LB01 3.09 3.9 (loss core 2.45-3.09) massive plastic grey clay minor mottling. dominant grey cutans
LB01 3.9 4.05 heavy mottling on contact
LB01 4.05 5.73 hardpan with microfractures with wet faces, MN, silicas/hardpan. abundant MN coatings, free water, top of klgc Upper Mottled
LB01 5.73 7.5 Silcrete with concretions in upper klgc. large detrital clasts, grading to silcrete with minor orthogenic Features, perhaps minor local reworking
LB01 7.5 8.2 massive silcrete, not as many fractures
LB01 8.2 9.4 silcified siltstone bleached in color, minor FEOX staining, highly fractured clays with sand infill, pin prick porous holes
LB01 9.4 10.7 bleached siltstone with resilicified siltstone. wet faces at 11 m, minor FE coatings on faces
LB01 10.7 11.9 GOE silcrete clasts in sandy matrix
LB01 11.9 13.85 no GOE mottles with strong franc’s with clay infill
LB01 13.85 14.35 becoming friable, with strong franc’s, clay infill, strong GOE mottling
LB01 14.35 14.75 bleached zone soft in strong frac's
LB01 14.75 14.9 harder sand zone with veining
LB01 14.9 16.4 strong GOE colour through bleached friable klgc, mottling varies in magnitude
LB01 16.4 16.55 hard FEOX zone around very soft bleached clay
LB01 16.55 16.8 bleached clay very soft
LB01 16.8 16.9 very strong FEOX and GOE mottled clays
LB01 16.9 17.4 bleached very soft clay
LB01 17.4 18 almost total replacement of FEOX and GOE mottling,
LB01 18 21 lower mottled zone klgc, sandy nature
LB01 21 24 fractures with infill, dominant sandy facies
LB01 24 27 sandy units with strong FE coatings on fracture plains
LB01 27 29.85 soft in patches, varying mud to fine sandstone, very tight bedding
LB01 29.85 32.9 bands of GOE along plans within soft sandy unit
LB01 32.9 34.9 all GOE colour in sandy facies
LB01 34.9 36 mud to f-sand, GOE bands
LB01 36 39 mainly sandy unit, all GOE colour, soft and damp
Diamond core drilling in the Lower Balonne 20
Bore ID
From (m)
To (m)
Lithology
LB01 39 42 interchanging bands of strong Goethitic zones and clay bands
LB01 42 45 sandy units with strong Goethitic colour
LB01 45 45.7 rhythmic banding in siltstones
LB01 45.7 47.35 a fine weathered fine sandstone. FE band at base.
LB01 47.35 47.6 fine interbedded siltstone.
LB01 47.6 50.8 rhythmic banding with siltstone interbands, 50mm FE band at base
LB01 50.8 start of marginal marine, minor carbonaceous material
LB01 50.8 52 bluish siltstone grading to mudstone at bottom then just into sandstone, very minor carbonaceous seams, roots in base of mud unit
LB01 52 53 fine bluish grey fine sandstone with 5% (2mm) black carbonaceous seams.
LB01 53 53.85 bluish sandstone to 53.15 then GOE coloured hard siltstone
LB01 53.85 55.5 sandstone bluish colour with GOE colour and carbonaceous seams
LB01 55.5 57 mudstone with brown to black coal seams, 56.2-56.6, angular contact of mudstone around brown coal like unit
LB01 57 58 mudstone unit very minor coal 2mm
LB01 58 59 grading into sandy unit, tightly laminated
LB01 59 60 interbedded hard bluish mudstone to siltstone
LB02: Mitchell Rd (Prickle Farm) Coordinates: 646920, 6918327 NRM&E Register No : 42240071 Date Logged: 19/10/2002 – 21/10/2002
Bore ID
From (m)
To (m)
Lithology
LB02 0 0.4 Sandy loam with organics
LB02 0.4 0.7 middle sandy clay unit
LB02 0.7 1.5 red brown earth with small angular blocky peds
LB02 1.5 2 yellowish brown sandy clay, with FE and MN development on small angular blocky ped faces
LB02 2 2.9 very hard large blocky structures with FE and MN development, minor powdery carbonate
LB02 2.9 3.4 large carbonate development in minor FEOX mottled grey clay
LB02 3.4 4.8 plastic hard mottled light brown to grey clay, with patchy sands
LB02 4.8 6.05 hard FEOX mottled sandy clay
LB02 6.05 6.6 heavy patches of FEOX mottling in light brown to grey clay
LB02 6.6 7.2 MN and FEOX mottled patches in fine well sorted sands, organics in MN patches
LB02 7.2 7.25 sandy clay blocky minor mottled colour
LB02 7.25 9 loss core, sands
LB02 9 10.5 well sorted fine sands, with minor MN zones, dry in patches
LB02 10.5 11.2 f to c sands with angular gravels, minor GOE mottled zones. large rounded lithic clasts at 11.2, 11.3
LB02 11.2 13.2 grading sand facies with f to c, no mottled zones
LB02 13.2 14.2 f to c sands with hard partly silicified zones at 13.4
Diamond core drilling in the Lower Balonne 21
Bore ID
From (m)
To (m)
Lithology
LB02 14.2 15.1 hard partly silicified zones in course sands and gravels, very hard zones from 14.5 to 15. lithic silcrete rounded, and sandstones at base
LB02 15.1 15.5 f to c sand, GOE colour
LB02 15.5 15.8 course sand to gravels with up to 50mm QZ gravel
LB02 15.8 16.7 loss core
LB02 16.7 16.95 hard partly silicified fine sands
LB02 16.95 17.15 f to c sands with minor FE rounded gravels
LB02 17.15 17.2 GOE mottled greyish silty clay
LB02 17.2 17.7 f to m sands
LB02 17.7 18 minor loss core
LB02 18 18.2 f to c sands and minor gravels in GOE grey clay
LB02 18.2 18.25 hard silicified sand clay band with f to m sands
LB02 18.25 18.7 hard silts to vf sands with GOE mottling
LB02 18.7 21.7 fine grading f to c sands with minor GOE bands in coarser bands, sub angular to sub-rounded
LB02 21.7 21.9 minor GOE mottled grey clay 2-5mm clay lenses
LB02 21.9 22.3 f to c sands
LB02 22.3 22.5 f to c sands and silts forming lenses
LB02 22.5 22.55 thick plastic grey clay with GOE mottling
LB02 22.55 22.7 f to c sands and silts
LB02 22.7 23.25 firm f to c sands and silts
LB02 23.25 23.4 heavy plastic grey clay, GOE mottled
LB02 23.4 23.6 firm (dry) f sands
LB02 23.6 23.8 plastic grey clay to silts with GOE mottled bands
LB02 23.8 25.8 f to c sands, 2 large 50mm QZ gravels
LB02 25.8 26 heavy GOE mottled grey silty clay
LB02 26 26.45 loss core, f sands
LB02 26.45 27.95 firmish f to c grading sands, clay nodules in sand
LB02 27.95 28.5 fine GOE and MN staining in GOE mottled grey clay, hard zone from 28-28.5
LB02 28.5 28.7 fine greyish sands and silts with minor MN
LB02 28.7 29.85 greenish grey silts to clay with strong FE and carbonate development, hard carbonate zones
LB02 29.85 30.3 vf sands and silts in light purple to greenish grey mottled clay, minor carbonate
LB02 30.3 31.4 heavy GOE mottled grey clay with MN pitting, brownish clay bands
LB02 31.4 32.4 vf sands and silts, hard, with greenish colour and GOE mottling
LB02 32.4 32.7 f sands in bands with GOE mottled zones
LB02 32.7 33.7 well sorted f to m sands, with GOE mottled bands, coarsing down to c sands at base
LB02 33.7 34.25 vf sands with greenish grey clay
LB02 34.25 34.55 GOE bands in f sands and silts
LB02 34.55 34.65 silty clay band with GOE mottling
LB02 34.65 35.2 vf sands and silts
LB02 35.2 35.5 bands of silts and f sands
LB02 35.5 38.1 coarsing down sand unit, with GOE colour at 37.5 with coarse sands
LB02 38.1 38.9 strong GOE colour to f to c sands with dark brown perhaps MN bands
Diamond core drilling in the Lower Balonne 22
Bore ID
From (m)
To (m)
Lithology
LB02 38.9 41.6 well sorted f to m sands
LB02 41.6 42 loss core
LB02 42 43.1 f to c sands
LB02 43.1 44.1 minor clay bands and gravels in minor GOE bedded f to c sands
LB02 44.1 45 very clean f to m sands
LB02 45 45.5 loss core
LB02 45.5 45.8 c sands to gravel, loss core
LB02 45.8 47 f to m sands with minor GOE banding at 46.5, thin carbon lenses
LB02 47 48 plastic grey clay with strong GOE zones with FE patches
LB02 48 48.7 varying f to c sand lens with clay inter-lenses
LB02 48.7 48.9 total GOE coloured firm silts and f to c sands with grey clay bands
LB02 48.9 49.2 GOE coloured f to c sands
LB02 49.2 49.3 hard plastic grey clay with minor mottling
LB02 49.3 51 loss core, very coarse sands to gravels
LB02 51 51.85 thin (laminated) carbon and GOE bands in f to m sands
LB02 51.85 52.2 very firm GOE staining to f to m sands
LB02 52.2 53.6 loss core
LB02 53.6 54.25 carbon lenses and GOE staining to grading f to c sands
LB02 54.25 55.6 bluish grey coloured sands f to m
LB02 55.6 56.2 darkish blue-grey clay
LB02 56.2 56.6 blue-grey f to m sands with very thin carbon lenses
LB02 56.6 56.7 bluish grey silts and clay
LB02 56.7 56.9 dark grey to bluish silts and clay
LB02 56.9 58.15 graded sands f to c at base with minor carbon lenses, fossil wood at 58m
LB02 58.15 58.4 silt to f sands
LB02 58.4 58.8 carbon banded in f to m sands
LB02 58.8 59.3 loss core EOH
Diamond core drilling in the Lower Balonne 23
LB03: Powrunna Rd Coordinates: 634750, 6902390 NRM&E Register No : 42220207 Date Logged: 22/10/2002 – 23/10/2002
Bore ID
From (m)
To (m)
Lithology
LB03 0 0.6 loss core
LB03 0.6 1.6 small blocky peds with strong MN development, in sandy red brown soil
LB03 1.6 1.75 sandy loam, red with organics, wet from drilling process
LB03 1.75 3 very hard, but crumbling when cut, heavy MN in sandy, possible powdery carbonate unit, breaks into large manganese coated peds
LB03 3 3.2 sandy clay with strong MN clasts
LB03 3.2 4.6 very firm, powdery carbonate unit with minor MN coating faces
LB03 4.6 5 minor MN pitting in firm carbonate rich grey silts
LB03 5 5.6 minor FEOX mottling in grey silts to vf sandy grey clay, minor MN pitting
LB03 5.6 5.8 very hard, minor FEOX mottling to grey silty clay
LB03 5.8 6.2 vf sands to silts with minor mottling
LB03 6.2 6.9 firm silts to grey clay, strong FEOX mottling in patches forming hard zones
LB03 6.9 7.25 hard no mottling to vf sands to silts
LB03 7.25 8.7 heavy grey silts to clay, patches of FEOX mottles
LB03 8.7 9.3 firm heavy GOE mottling, f sands
LB03 9.3 10.7 firm grey clay to silts with strong FEOX mottling
LB03 10.7 13.2 strong FE coloured f sands, firm to hard
LB03 13.2 14.3 Very strong GOE and FEOX mottling in f to m sands, total FE colour in parts and firm
LB03 14.3 14.8 GOE mottling with greyish silts to f sands
LB03 14.8 17 FE stained sands grading, with vertical grey clay lenses
LB03 17 17.5 loss core
LB03 17.5 20.4 loss core, washed away at cutting face, f sands
LB03 20.4 20.75 Well sorted f to m sands, moderate mottling
LB03 20.75 21.5 coarse sands to gravel, minor GOE mottled zones
LB03 21.5 23 very hard vf sands and silts, forming hard zone minor MN along faces
LB03 23 24 brown silts forming very firm zone with fractures
LB03 24 24.5 vf sands and silts (firm)
LB03 24.5 25.85 f to m sands brown colour
LB03 25.85 26.4 vf and f sands with silts, minor carbon lenses
LB03 26.4 26.8 loss core, WET derived from dry sands contaminated by drilling muds
LB03 26.8 28.45 f to m sands well sorted pale yellow colour, minor carbon lenses
LB03 28.45 29.9 loss core
LB03 29.9 31.4 coarse sands very wet,
LB03 31.4 31.9 f to c sands, very minor GOE bands, and carbon in silty areas
LB03 31.9 32.65 loss core
LB03 32.65 33.8 loss core
LB03 33.8 34.6 f to c sands very wet
Diamond core drilling in the Lower Balonne 24
Bore ID
From (m)
To (m)
Lithology
LB03 34.6 35.4 f to m sands grading to c, minor GOE and carbon lenses
LB03 35.4 35.7 firm grey clay and silts minor banding
LB03 35.7 36.8 increasing carbon spotted zones in cleaner f to m sands
LB03 36.8 38 lenses of f sands and GOE mottling with minor 30mm GOE and grey clay pugs, minor carbon banding
LB03 38 38.9 very strong carbon and GOE development in very heterogeneous lenses from grey clay to c sands
LB03 38.9 40.2 f to m sands clean, with minor GOE bands within silty zones
LB03 40.2 40.7 loss core
LB03 40.7 41.25 f to c sands heavy GOE mottled colours
LB03 41.25 41.3 f to m sands floating in banded GOE mottled grey clays
LB03 41.3 41.4 f to m sands clean
LB03 41.4 41.75 loss core
LB03 41.75 42.9 heavy GOE colouring to f to m sands, laminations visible
LB03 42.9 43 c sands heavy GOE mottling
LB03 43 43.1 f to m sands GOE bands
LB03 43.1 44.7 loss core
LB03 44.7 47 strong GOE coloured f to m sands, with laminations, very hard zone at 46.7m
LB03 47 47.5 f to m sands, bluish grey colour
LB03 47.5 47.9 loss core
LB03 47.9 48.45 f to m sands bluish grey colour
LB03 48.45 51 loss core
LB03 51 51.8 v angular c sands
LB03 51.8 51.85 large 50mm gravels, with minor rounded pebbles
LB03 51.85 52 f to c sands, bluish colour
LB03 52 52.15 f to m sands
LB03 52.15 52.2 minor gravel lens
LB03 52.2 52.35 f to m sands
LB03 52.35 52.5 f to c sands and angular gravels
LB03 52.5 53.2 f to m sands, all in grading sequences, and angular sediments, very minor carbon seams (Free Sands)
LB03 53.2 54 loss core
LB03 54 54.8 grading from silts, vf to f to m sands, cemented silty zone at 54.1
LB03 54.8 55 c sands and angular gravels
LB03 55 55.3 f to c sands with clay banding
LB03 55.3 55.5 f to c sands minor gravels
LB03 55.5 56.3 f to m sands free, bluish colour, minor carbon banding
LB03 56.3 57 loss core
LB03 57 58.3 grading sands, minor carbon banding
LB03 58.3 58.55 transition with rounded angular pebbles in silty clays
LB03 58.55 59.45 tight silts to clay, dark grey to blue, minor mottled zone
LB03 59.45 59.8 loss core EOH
Diamond core drilling in the Lower Balonne 25
LB04: Wombil Downs Coordinates: 592790, 6864078 NRM&E Register No : 42220208 Date Logged: 08/11/2002 – 09/11/2002
Bore ID
From (m)
To (m)
Lithology
LB04 0 0.6 vf sands, Aeolian?
LB04 0.6 1.1 red silty sands with carbonate patches
LB04 1.1 1.7 firm silty clays with MN and MN pitting
LB04 1.7 3.7 firm silts and sands with FEOX mottled areas, floating coarse grains
LB04 3.7 5.95 firm but crumbling pale grey clay with minor FEOX (hard small zones)
LB04 5.95 6.1 firm vf sands FEOX colour
LB04 6.1 8.1 firm to hard grey clays and silts with hard FEOX mottled zones
LB04 8.1 10.3 firm but crumbling vf sands and silts with FEOX mottling
LB04 10.3 11.05 firm silts and grey clay, moderate to strong GOE mottling
LB04 11.05 12 strong FEOX mottled vf to fine sands, firm to hard
LB04 12 15.45 grading from firm silts to sands and grey clays with strong (pale) FEOX mottling, very dry, consistent unit
LB04 15.45 18 firm to hard grey clay and silts, patches of sand, MN concentrated on faces and pitting, sands floating
LB04 18 21.1 large grading unit with MN and GOE mottling, firm to hard, silty clay, sands floating
LB04 21.1 25.8 hard plastic faces GOE mottled grey clay, MN zones and carbonate, grading to firm silts, grading into brown clay strong MN
LB04 25.8 27 firm to hard vf sands to silts strong GOE colour,
LB04 27 28.3 hard plastic heavy GOE mottled grey clay, shinny faces
LB04 28.3 30.2 firm vf sands and silts strong GOE colour
LB04 30.2 30.8 firm to hard grey clay to silts, shinny faces, plastic
LB04 30.8 31.7 vf sands and silts strong FEOX colour
LB04 31.7 35.4 firm heavy FEOX mottled grey clay to silts
LB04 35.4 37.5 firm strong FEOX f sands
LB04 37.5 39.1 firm, damp to moist f sands, minor MN staining, well sorted, sub-rounded
LB04 39.1 40.3 massive plastic grey clay, with MN pitting and v minor GOE mottling, grains floating
LB04 40.3 42.2 massive plastic grey clay, with MN pitting and v minor GOE mottling, grains floating plus patches of fine sands
LB04 42.2 44.1 massive plastic grey clay, increasing GOE mottling
LB04 44.1 45.1 massive plastic grey clay, increasing GOE mottling, QZ floating
LB04 45.1 45.6 plastic grey clay, shinny faces
LB04 45.6 48.8 firm grey clay and silts, minor GOE to FEOX mottled patches, increase sand at base 30%
LB04 48.8 49.1 firm plastic brown to grey clay, strongly mottled, shinny faces
LB04 49.1 50.8 patches of FEOX and GOE mottling in crumbling silty clay, minor MN veining, QZ floating
LB04 50.8 54.1 firm f sands to silts grading with crumbling grey clay, strong GOE mottling within sandy unit, minor FEOX mottles, large grading unit
LB04 54.1 55 f sands well sorted, wet strong GOE colour
LB04 55 56.5 loss core
LB04 56.5 59.1 f sands minor GOE mottled zones moist to wet
LB04 59.1 61 mix grey clay and moderate GOE mottled f sands grading in parts to m sands
Diamond core drilling in the Lower Balonne 26
LB05: Munro Rd (St George Irrigation Area) Coordinates: 667393, 6878738 NRM&E Register No : 42220209 Date Logged: 28/10/2002 – 29/10/2002
Bore ID
From (m)
To (m)
Lithology
LB05 0 0.2 loam, black clays
LB05 0.2 0.9 firm dark brown clay, minor carbonate pitting
LB05 0.9 1.7 floating f sands in yellowish-brown clay
LB05 1.7 3.3 f to c sands floating in yellowish brown clay
LB05 3.3 5.8 f to c sands and silts in firm sandy yellow brown clay, v minor GOE mottling
LB05 5.8 6.2 c sands in firm silts, minor gravels
LB05 6.2 7.4 coarse sands to gravels wet, minor rounded gavels
LB05 7.4 9 loss core
LB05 9 10.2 loss core
LB05 10.2 11 f to c sands with silts, minor lithic silcrete gravels, smooth to soft
LB05 11 12.1 f to c sands and gravels, poorly sorted
LB05 12.1 12.2 coarse sands and rounded lithic gravels, up to 40mm
LB05 12.2 13.6 f to c sands poorly sorted and angular, grading
LB05 13.6 13.8 coarse sands and rounded lithic gravels
LB05 13.8 14.6 f to c sands poorly sorted and angular, grading
LB05 14.6 19.2 f to m sands floating in hard minor GOE mottled grey clay, strong slickenside development along faces, minor carbon or MN development with roots
LB05 19.2 20.3 very strong FEOX and MN discolouration in plastic grey clay, strong slickensides, shinny, angular fracturing, minor silt units
LB05 20.3 24.4 very strong FEOX mottling with strong slickenside development, patches of silts
LB05 24.4 24.9 transition to bleached klgc, strong FEOX development along layers, hard
LB05 24.9 29.6 patches of GOE stained klgc with bleached siltstones, minor CARBON veinlets, dominant GOE mottling in coarser lenses at 26.3
LB05 29.6 31.8 sandstone bleached unit
LB05 31.8 32 firm mud to silt
LB05 32 32.9 soft mud to silt, bleached
LB05 32.9 37.85 hard, highly fractured with carbon pitting, bleached mud to silt
LB05 37.85 40.65 sandstone, no longer white bleached colour
LB05 40.65 43.35 moist to wet sandstone
LB05 43.35 43.95 loss core
LB05 43.95 45.7 sandstone
LB05 45.7 49.95 wet coarse sandstone, carbon stained
LB05 49.95 47.4 siltstone, firm
LB05 47.4 48.4 siltstone to fine sandstone soft
LB05 48.4 51.1 firm highly fractured siltstone to mudstone, minor FEOX and GOE staining along fracture faces
LB05 51.1 53.1 total replacement by GOE, FEOX mottling along fractured faces, soft mudstone
LB05 53.1 59.3 strong hard GOE banding in total GOE mottled siltstone, grading to fine sandstone
Diamond core drilling in the Lower Balonne 27
LB06: Yamburgan Coordinates: 639267, 6846769 NRM&E Register No : 42220210 Date Logged: 04/11/2002 – 05/11/2002
Bore ID
From (m)
To (m)
Lithology
LB06 0 0.5 sandy loam, dark brown to black clays, organics
LB06 0.5 1.7 firm blocky dark brown sandy clay, minor MN patches
LB06 1.7 2.9 strong MNs in firm dark brown clay
LB06 2.9 4 f sands firm with brown to grey clays
LB06 4 4.2 grey clays with organics strong MN development on faces, transition zone
LB06 4.2 5.2 strong FEOX colour to f sands & silts, strong MN development grading to GOE, bedded structure, upper mottled klgc, sandy unit coarse grains floating,
LB06 5.2 6 possible carbonate powdered in fine sandstone sequence moderate GOE mottling and MN pitting
LB06 6 6.2 large 20mm rounded gravels, QZ and FEOX lithics in highly weathered siltstones strong GOE mottling
LB06 6.2 7.9 light grey weathered siltstone with carbonate along bedded structures, friable, minor GOE zones
LB06 7.9 8 total replaced by MN, friable
LB06 8 9.3 increasing GOE to FEOX hard mottled zones in firm bedded structured siltstone
LB06 9.3 12 strong fracturing to firm siltstones, possible bleached zone, minor clay infill zones and MN on faces, minor hard FEOX zones, bleached zone
LB06 12 15.8 strong fracturing to firm siltstones, possible bleached zone, minor clay infill zones and MN on faces, minor wet faces , bleached zone, increasing MN
LB06 15.8 18 pale pink colour with moderate GOE mottled zones in grey siltstones, strongly fractured, start of lower mottled
LB06 18 19.9 very minor pale FEOX to GOE mottling in softer weathered siltstone
LB06 19.9 20.1 strong GOE forming hard zone
LB06 20.1 20.8 clay infill bands in sandy unit, firm
LB06 20.8 23.9 clay infill fractures in damp to moist highly weathered sandstone, clay replaced, minor GOE to FEOX staining in parts
LB06 23.9 24.4 interbedded with clay infill
LB06 24.4 27 firm siltstone unit with strong GOE mottled patches grading
LB06 27 29.7 firm siltstone minor GOE mottled zones, minor clay zone
LB06 29.7 30.8 loss core
LB06 30.8 33.6 soft in parts, pale greenish weathered fine sandstone to siltstone, MN layers
LB06 33.6 34.6 highly weathered sandy unit
LB06 34.6 45 interbedded units strong GOE mottling mud to fine sand lenses, GOE in bands, thinly laminated to bedded, increase moisture to depth
LB06 45 49.6 interbedded dominant sandy unit with very strong GOE mottling and patches of hard GOE iron banding concretionary zones, minor clay lenses
LB06 49.6 51 platy siltstone to Mudstone no mottled areas dark grey to black, , same as above with strong laminated structure but not weathered
LB06 51 53 platy siltstone to Mudstone no mottled areas dark grey to black, , same as above with strong laminated structure but not weathered
LB06 53 56.5 same but increasing sand rather than mud, however still platy, possible marginal marine
LB06 56.5 59.5
Diamond core drilling in the Lower Balonne 28
LB07: Jakelwar Rd Coordinates: 635004, 6886243 NRM&E Register No : 42220211 Date Logged: 24/10/2002 – 25/10/202
Bore ID
From (m)
To (m)
Lithology
LB07 0 0.3 Dark brown to black clay
LB07 0.3 0.9 dark brownish clay with carbonate patches and MN pitting
LB07 0.9 1.3 pale yellow to grey clay, MN pitting
LB07 1.3 3.1 patchy sandy zones in minor GOE mottled clays, large carbonate zone at 2.2m
LB07 3.1 4.15 patches of f sands within floating sandy grey clay
LB07 4.15 4.4 moderate GOE mottling in sandy clays, firm
LB07 4.4 6 firm strong GOE mottled sands to silts, with minor hard dark red-FEOX mottles
LB07 6 6.75 firm, FEOX and GOE mottled silts and floating sands
LB07 6.75 7.5 very hard minor mottled grey silts to f sands, floating f sands in mottled silts to clay in patches
LB07 7.5 7.9 firm silty sands with strong MN coating along fractures and carbonate zones
LB07 7.9 9.1 firm, GOE mottled and MN pitting in silty clays, strong calcrete zone at 8.2, floating f to m sands
LB07 9.1 11.75 firm strongly mottled sandy clays, varying from f to c sands, floating firm
LB07 11.75 11.95 very strong brown colour to f to c sands,
LB07 11.95 13 loss core
LB07 13 13.7 minor mottled f to m sands
LB07 13.7 15 wet f to m sands, light yellow to brown colour, minor carbon spots
LB07 15 18.35 loss core, very coarse sands to gravel
LB07 18.35 18.9 f to c sands grading with laminations to c sands and gravels at base, free sands
LB07 18.9 18.95 minor clay lens
LB07 18.95 20.3 f to m sands free and cleaner
LB07 20.3 20.35 firm grey clay, floating f sands with minor purple mottles
LB07 20.35 20.5 f to c sands in grey clay, minor mottling firm with carbonate, purple colour to mottling
LB07 20.5 20.9 very firm grey fragments with floating sands, minor carbonate
LB07 20.9 22.15 very firm silts and clays, with minor floating, carbonate banding and minor MN pitting
LB07 22.15 23 firm f sands in patches, with silts
LB07 23 27 loss core
LB07 27 28.3 f to m sands, minor banding with clay balls, and carbon lenses, lithic, smoothed gravels in clay zones
LB07 28.3 28.4 f to c sands with grey clay lenses with smooth gravels sub-rounded, and minor separate clay balls in sandy zone, base of sequence
LB07 28.4 29.3 loss core
LB07 29.3 30.35 f to c sands banding, minor GOE banding
LB07 30.35 30.6 f to c sands and gravels with lithic up to 40mm in grey clay
LB07 30.6 30.85 f to m sands, banding and carbon
LB07 30.85 32.85 heavy plastic grey clay with floating f sands, minor GOE mottled zones, slickenside development along faces with MN in carbon pitting
LB07 32.85 36.5 total FEOX mottled silts, GOE mottling inside strong FE cementation very hard, clay filled
Diamond core drilling in the Lower Balonne 29
Bore ID
From (m)
To (m)
Lithology
zones with elongate GOE zones
LB07 36.5 37.4 soft, moist zone, banded
LB07 37.4 38.7 very hard FEOX mottled zones, with minor clay and GOE zones, free water along FEOX hard zones
LB07 38.7 39.75 moist, equal FEOX and GOE mottling
LB07 39.75 40.8 very hard, banding in Ferruginous zone, smaller clay infill fractures, minor evidence of banding, free water along faces
LB07 40.8 41.7 pallid zone, full clay, kal moist
LB07 41.7 42 almost crystalline Ferruginous
LB07 42 42.7 grading from upper mottled to bleached siltstone klgc, BASE OF UPPER MOTTLED
LB07 42.7 45.25 bleached klgc, minor fracture filled zones
LB07 45.25 47.7 FEOX and GOE mottled sandstone, heavy to hard in patches, wet coarse sand lenses - TOP OF LOWER MOTTLED
LB07 47.7 48 very hard GOE bands and FEOX siltstone, clay zones in parts, bedding siltstone, banded, all white possible CHERT at 48.7
LB07 48 50.5 very hard GOE bands and FEOX siltstone, clay zones in parts, bedding siltstone, all white, possible kaolin clay mottle at 48.7
LB07 50.5 51 sandy unit GOE mottled strong bedding at interface
LB07 51 54 dominate silt to fine sandstone unit with clay 5-10mm lenses, GOE mottled, and laminated, moist in parts, dirty sandstone, minor FE bands
LB07 54 57 EOH, soft mudstone with FE in bedding plans, GOE mottled, fine laminated
LB08: Cubbie Coordinates: 601580, 6835063 NRM&E Register No : 06/11/2002 – 07/11/2002 Date Logged: 42220212
Bore ID
From (m)
To (m)
Lithology
LB08 0 0.4 loose gravels, road base or detritals
LB08 0.4 0.1 damp dark grey clays with minor organics
LB08 0.1 1.6 firm to hard sandy grey clay, minor GOE mottling
LB08 1.6 2.3 firm silts to f sands, minor GOE mottled zones
LB08 2.3 3.8 firm f sands, with minor MN zones and moderate GOE mottling
LB08 3.8 3.9 firm silts and f sands, strong MN development
LB08 3.9 5 well sorted vf to f sands, minor GOE mottling
LB08 5 6 loss core
LB08 6 7.6 f sands v minor GOE bands
LB08 7.6 8.3 f to m sands, clean, collapse in barrel
LB08 8.3 9.1 f to m sands, clean, very pale GOE colour, sands are sub-angular to rounded, dominant sub-rounded with dark flakes, well sorted
LB08 9.1 10.2 coarse sands, angular with minor clay pugs forming bands, GOE colouring
LB08 10.2 11.5 f to c sands with black flakes forming banding features and clay layers with gravels
LB08 11.5 12.4 coarse sands and minor gravels, angular to sub-rounded, minor loss core
Diamond core drilling in the Lower Balonne 30
Bore ID
From (m)
To (m)
Lithology
LB08 12.4 14.6 f to c sands with black flakes and GOE forming laminated Features, minor clay pugs-lenses
LB08 14.6 14.8 coarse sands, angular minor gravel, lithic, black
LB08 14.8 15.1 loss core
LB08 15.1 15.6 f to m sands with grey clay bands, strong GOE colour
LB08 15.6 15.75 grey silts and clay, firm
LB08 15.75 15.95 f to c sands
LB08 15.95 16.1 sharp boundary to hard grey clay, minor GOE mottled areas, minor coarse QZ floating
LB08 16.1 17.8 firm dry f sands to silts with minor GOE mottled zones, MN patches
LB08 17.8 19.3 vf sands to silts, heavy mottling in parts, hard silicified nodule at 19.8
LB08 19.3 20.05 f sands strong GOE colouration, coarse at base
LB08 20.05 21.8 firm to hard grey clay with moderate carbon zones, minor slickenside faces, firm silty clay
LB08 21.8 22.4 firm bedded f sands and GOE mottled grey clays, MN
LB08 22.4 23.05 f to m sands, WET carbon thin layers
LB08 23.05 23.3 firm to hard very tight layers of silts and f sands
LB08 23.3 24 loss core
LB08 24 24.7 f to m sands wet, clean
LB08 24.7 24.75 minor grey clay lens
LB08 24.75 25 f to m sands, sub-rounded
LB08 25 27 loss core
LB08 27 29.4 f to m sands grading in parts to c, 1 clay ball inside sands, the wet sands are dry which gave been contaminated by mud
LB08 29.4 30 loss core
LB08 30 32.3 f to m sands with GOE mottled grey clay thin pugs to bands every 15cm, c sands from 31.2
LB08 32.3 32.4 brown clay bands with f to c sands, poorly sorted
LB08 32.4 33 loss core
LB08 33 34.05 f to c sands with clay lenses every 15 cm
LB08 34.05 34.2 hard, silicified zone with sub-angular gravels
LB08 34.2 34.6 f sands
LB08 34.6 35 firm f sandy mottled grey clay, small GOE pugs
LB08 35 35.1 f sands, clean, small inter-layers
LB08 35.1 35.6 patches of f sands in layers of GOE mottled grey clay
LB08 35.6 36 loss core
LB08 36 36.2 firm GOE mottled grey clay with f sand patches
LB08 36.2 36.7 f to m sands
LB08 36.7 37 firm grey clay and silts
LB08 37 37.8 30mm grey clay lenses, mottled therefore interlayered with f sands, minor MN layers
LB08 37.8 39 loss core
LB08 39 40.1 f to m sands GOE colour and wet
LB08 40.1 40.4 poorly sorted f to c sands with grey clay, strongly GOE mottled
LB08 40.4 41 coarse sands with mottled grey clay
LB08 41 41.65 f sands with thin clay lenses and pugs
LB08 41.65 41.7 firm grey clay and silts with vf sands
Diamond core drilling in the Lower Balonne 31
Bore ID
From (m)
To (m)
Lithology
LB08 41.7 42 loss core
LB08 42 42.05 firm grey clay and silts
LB08 42.05 43.55 f sands, clean well sorted, grading into clay lenses and m sands
LB08 43.55 43.7 GOE mottled grey clay with patches of f sands
LB08 43.7 45 loss core
LB08 45 45.3 f to c sands with gravel base, sub-rounded
LB08 45.3 47 clean well sorted f sands, minor clay ball
LB08 47 47.7 strong GOE to FEOX colour to f sands, minor MN layers
LB08 47.7 48 loss core
LB08 48 48.3 grey clay and silts with f sands, minor coarse lens
LB08 48.3 49.5 f sands grading with c sands at base within clay lenses
LB08 49.5 50 loss core
LB08 50 51.3 f to m sands grading to c at base with minor grey clay lenses
LB08 51.3 54.1 hard GOE mottled grey clays and silts, shinny plastic like faces, floating grains
LB08 54.1 55.8 firm to hard grey clays and silts, mottled areas within silts to vf sand areas
LB08 55.8 55.85 f sands clean
LB08 55.85 56.4 loss core
LB08 56.4 59 loss core
LB08 59 60.5 f sands clean
LB08 60.5 61.3 f to c sands, strong GOE colour
LB08 61.3 64.5 thick plastic dark purple clay, massive shinny faces, minor FEOX mottled zones, sharp contact, hard mottled zone at 64.5
LB08 64.5 67.5 firm grey clay to silts
LB08 67.5 68.4 hard FEOX mottled vf sands
LB08 68.4 69 firm grey clay to silts
Diamond core drilling in the Lower Balonne 32
LB09: Ballangarie Coordinates: 669267, 6855008 NRM&E Register No : 41720070 Date Logged: 02/11/2002 – 03/11/2002 Bore ID
From (m)
To (m)
Lithology
LB09 0 0.9 silty dark brown to black clays, strong organics
LB09 0.9 1.7 sandy clays, firm
LB09 1.7 3.6 vf sands and silts with powdery carbonate forming hard zones
LB09 3.6 4.8 f to m sands well sorted
LB09 4.8 6.75 f to m sands, minor GOE mottled zones, cemented in parts, organics
LB09 6.75 6.85 f sands and silts with sub-rounded gravels, poorly sorted
LB09 6.85 7 grey clay and silts with organics, firm
LB09 7 9 f sands with hard GOE mottled zones, well sorted
LB09 9 9.3 firm grey silts to vf sands
LB09 9.3 10.4 mix mottling of FEOX and GOE, concretionary from GEO to FEOX
LB09 10.4 11.8 f to c sands grading with GOE mottled zones, also firm in parts
LB09 11.8 12 firm grey silts and clay with organics
LB09 12 12.25 f to c sands and gravels, angular in GOE to FEOX stained clays
LB09 12.25 12.3 grey silts to clay
LB09 12.3 15.5 f to m sands grading with GOE banding, firm in patches
LB09 15.5 16.95 c sands and gravels, angular, minor clay pugs with unit, up to 5mm gravels
LB09 16.95 17.15 firm GOE mottled grey clay
LB09 17.15 18.7 f to m sands, moderate GOE mottling
LB09 18.7 19.2 clean f sands
LB09 19.2 22.8 massive plastic grey clay with slickensides floating sands minor FEOX and GOE mottling
LB09 22.8 23.2 hard FEOX zone, grading zone into soft GOE mottled siltstone?
LB09 23.2 23.6 GOE banding to possible weathered siltstone, start of upper mottled klgc
LB09 23.6 27.4 strong GOE to FEOX mottled zones with banding, minor MN coating firm to very hard, upper mottled klgc
LB09 27.4 30.4 strong FEOX to GOE mottling to sandstones, moist in parts
LB09 30.4 31.7 mottled FEOX in grey silty clay, hard
LB09 31.7 32.9 grading zone in party silicified, bleached zone, boundary to bleached klgc, clay infill
LB09 32.9 35.95 bleached klgc, top end replaced clay zone
LB09 35.95 37.95 sandy base to bleached zone
LB09 37.95 39.5 loss core
LB09 39.5 42 sandy, fine sandstone, bleached klgc, moist in parts
LB09 42 45 friable siltstone unit, bleached
LB09 45 47 bleached soft siltstone to mudstone, hard FEOX zone at 46m
LB09 47 48 replaced GOE to FEOX soft siltstone, possible top of lower mottled klgc
LB09 48 51 soft replaced FEOX and GOE mottling in parts, siltstone
LB09 51 54 soft replaced FEOX and GOE mottling in parts, siltstone
LB09 54 56.5 firm grading sequences with GOE replaced areas and bedded FEOX staining, fine sandstone
LB09 56.5 57 soft weathered siltstone pale pink colour
LB09 57 60 firm weathered siltstone FEOX to greenish colour, minor hard GOE bands
Diamond core drilling in the Lower Balonne 33
LB10: North Weengallon Coordinates: 703154, 6873502 NRM&E Register No : 41720071 Date Logged: 31/10/2002 – 01/11/2002 Bore ID
From (m)
To (m)
Lithology
LB10 0 0.4 dark brown to black silty clay
LB10 0.4 1.6 dry t humid small angular blocky peds, minor MN and GOE patches
LB10 1.6 2.7 minor mottled grey clay
LB10 2.7 3.2 hard FEOX nodules and mottled zones with carbonate in grey clay
LB10 3.2 7.9 bluish grey clay with firm FEOX mottled zones
LB10 7.9 9.1 hard siltstone minor GOE mottled zones and hard FEOX mottling
LB10 9.1 12.7 soft in patches but mainly firm to hard white siltstone with hard FEOX mottled zones, minor wet faces, vertical mottled structures, gypsum vein 11.3
LB10 12.7 14.9 strong FEOX hard siltstone with gypsum on faces, strong GOE colour grading to fine sandstone gypsum vein 14.5m laminations
LB10 14.9 17.6 pale GOE colour laminations in fine sandstone, damp to touch, but weathered, gypsum veining, angular fracturing
LB10 17.6 20.6 siltstone to fine sandstone clay, banding gypsum at 17.9, hard banded GOE zone at 18.3
LB10 20.6 25 weathered siltstone to fine sandstone, pale grey colour
LB10 25 27.2 GOE weathered (clay) fine sandstone, minor clay fills banding, minor hard zones
LB10 27.2 30 pale grey colour with GOE and MN banding
LB10 30 31.6 minor GOE bands in siltstone almost clay
LB10 31.6 32.7 GOE zones in fine sandstone to siltstone, MN pitting
LB10 32.7 38.3 interbedded siltstones with highly weathered zones almost clay, strong banding GOE in parts, soft
LB10 38.3 38.9 total GOE colour to highly replaced siltstone to mudstone
LB10 38.9 44.8 inter-bedded siltstone and mudstones with GOE mottled lenses, firm
LB10 44.8 48 sandy marginal marine
LB10 48 51 hard grey sandstone mottled in parts
LB10 51 54 hard grey sandstone with carbon and immature coal lenses, minor clay clasts at 52.5
Diamond core drilling in the Lower Balonne 34
Appendix C: Colour, Texture, Mineralogy and Moisture Characteristics
LB01: Anchorage Coordinates: 656770, 6912774 NRM&E Register No : 42220206 Date Logged: 17/10/2002 – 19/10/2002
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB01 0 1.25 10yr4/2 GP CLAY PY DRY
LB01 1.25 2.1 10yr5/2 75 25 CLAY MN DRY
LB01 2.1 3.09 10yr4/2 70 25 5 CLAY MN FEOX HUM
LB01 3.09 3.9 10yr5/2 70 25 5 CLAY QZ FEOX HUM
LB01 3.9 4.05 2.5yr4/6 70 25 5 CLAY MN FEOX HUM
LB01 4.05 5.73 2.5y6/6 CLAY MN FEOX MST
LB01 5.73 7.5 2.5y6/6 CLAY Si FEOX MST
LB01 7.5 8.2 2.5y7/3 CLAY Si HUM
LB01 8.2 9.4 2.5y8/2 CLAY Si HUM
LB01 9.4 10.7 2.5y8/2 CLAY QZ FEOX HUM
LB01 10.7 11.9 2.5y8/2 CLAY QZ GOE HUM
LB01 11.9 13.85 2.5y8/2 CLAY QZ HUM
LB01 13.85 14.35 2.5y8/1 CLAY QZ GOE HUM
LB01 14.35 14.75 2.5y8/1 CLAY QZ DMP
LB01 14.75 14.9 2.5y8/1 CLAY QZ HUM
LB01 14.9 16.4 2.5y8/1 CLAY QZ GOE DMP
LB01 16.4 16.55 2.5y8/1 CLAY QZ GOE DMP
LB01 16.55 16.8 2.5y8/1 CLAY QZ DMP
LB01 16.8 16.9 2.5y8/1 2.5yr4/6 CLAY QZ GOE DMP
LB01 16.9 17.4 2.5y8/1 CLAY QZ GOE DMP
LB01 17.4 18 2.5y8/1 2.5yr4/6 CLAY QZ GOE DMP
LB01 18 21 2.5y8/1 2.5yr4/6 QZ GOE FEOX DMP
LB01 21 24 2.5y6/3 2.5yr4/6 QZ GOE FEOX DMP
LB01 24 27 2.5y6/3 10yr6/8 QZ GOE FEOX DMP
LB01 27 29.85 2.5y6/3 10yr6/8 QZ GOE CLAY DMP
LB01 29.85 32.9 2.5y6/3 10yr6/8 QZ GOE CLAY MST
LB01 32.9 34.9 10yr6/8 QZ GOE CLAY DMP
LB01 34.9 36 2.5yr6/3 10yr6/8 QZ GOE CLAY DMP
LB01 36 39 10yr6/8 2.5yr6/3 QZ GOE CLAY MST
LB01 39 42 2.5yr6/3 10yr6/8 QZ GOE CLAY DMP
LB01 42 45 10yr6/8 QZ GOE CLAY MST
LB01 45 45.7 QZ GOE CLAY MST
LB01 45.7 47.35 MST
Diamond core drilling in the Lower Balonne 35
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB01 47.35 47.6 MST
LB01 47.6 50.8 MST
LB01 50.8 MST
LB01 50.8 52 5y5/1
LB01 52 53
LB01 53 53.85
LB01 53.85 55.5 10yr2/1
LB01 55.5 57 2.5y4/1 QZ MS
LB01 57 58
LB01 58 59
LB01 59 60
LB02: Mitchell Rd (Prickle Farm) Coordinates: 646920, 6918327 NRM&E Register No : 42240071 Date Logged: 19/10/2002 – 21/10/2002
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB02 0 0.4 60 30 10 CLAY QZ HUM
LB02 0.4 0.7 60 25 15 CLAY QZ MS DRY
LB02 0.7 1.5 45 30 25 CLAY QZ MS DRY
LB02 1.5 2 65 25 10 CLAY QZ MN DRY
LB02 2 2.9 65 25 10 CLAY QZ CARB DRY
LB02 2.9 3.4 75 20 5 CLAY QZ CARB HUM
LB02 3.4 4.8 75 20 5 CLAY QZ HUM
LB02 4.8 6.05 45 30 25 CLAY QZ MS HUM
LB02 6.05 6.6 70 25 5 CLAY QZ MS HUM
LB02 6.6 7.2 20 30 60 QZ CLAY MS WET
LB02 7.2 7.25 50 30 20 CLAY QZ MS MST
LB02 7.25 9 WET
LB02 9 10.5 10 20 70 QZ MS WET
LB02 10.5 11.2 5 10 55 30 QZ MS WET
LB02 11.2 13.2 10 10 70 10 QZ MS WET
LB02 13.2 14.2 10 10 60 20 QZ MS WET
LB02 14.2 15.1 5 10 55 30 QZ Si MST
LB02 15.1 15.5 5 10 60 25 QZ GOE MST
LB02 15.5 15.8 10 10 40 40 QZ MST
LB02 15.8 16.7
LB02 16.7 16.95 30 30 40 QZ GOE DMP
LB02 16.95 17.15 10 20 65 5 QZ
LB02 17.15 17.2 60 30 10 QZ
Diamond core drilling in the Lower Balonne 36
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB02 17.2 17.7 5 20 73 2 QZ
LB02 17.7 18 QZ
LB02 18 18.2 30 30 35 5 QZ MST
LB02 18.2 18.25 40 30 30 QZ MST
LB02 18.25 18.7 40 40 20 QZ MST
LB02 18.7 21.7 10 20 65 5 QZ TOUR WET
LB02 21.7 21.9 30 20 45 5 QZ WET
LB02 21.9 22.3 20 20 50 10 QZ MST
LB02 22.3 22.5 50 30 20 QZ MST
LB02 22.5 22.55 75 20 5 CLAY QZ HUM
LB02 22.55 22.7 40 20 35 5 QZ WET
LB02 22.7 23.25 20 20 35 5 QZ WET
LB02 23.25 23.4 80 18 2 CLAY MST
LB02 23.4 23.6 20 20 60 QZ MST
LB02 23.6 23.8 60 30 5 CLAY MST
LB02 23.8 25.8 5 15 70 10 QZ WET
LB02 25.8 26 60 20 20 CLAY MST
LB02 26 26.45
LB02 26.45 27.95 20 20 40 20 QZ WET
LB02 27.95 28.5 60 35 5 DMP
LB02 28.5 28.7 40 30 30 MST
LB02 28.7 29.85 60 30 10 CLAY QZ CARB DMP
LB02 29.85 30.3 55 25 30 CLAY QZ CARB DMP
LB02 30.3 31.4 65 20 15 CLAY CARB DMP
LB02 31.4 32.4 40 20 40 QZ CARB DMP
LB02 32.4 32.7 20 30 50 QZ GOE DMP
LB02 32.7 33.7 10 20 70 QZ GOE WET
LB02 33.7 34.25 50 20 30 MST
LB02 34.25 34.55 20 30 50 MST
LB02 34.55 34.65 50 30 20 WET
LB02 34.65 35.2 25 20 55 DMP
LB02 35.2 35.5 10 15 75 WET
LB02 35.5 38.1 5 15 70 10 WET
LB02 38.1 38.9 5 15 70 10 QZ MN WET
LB02 38.9 41.6 5 15 80 WET
LB02 41.6 42 WET
LB02 42 43.1 10 20 65 5 WET
LB02 43.1 44.1 10 20 60 10 WET
LB02 44.1 45 5 15 80 WET
LB02 45 45.5 WET
LB02 45.5 45.8 5 10 70 15 WET
LB02 45.8 47 5 15 80 WET
Diamond core drilling in the Lower Balonne 37
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB02 47 48 80 15 5 DMP
LB02 48 48.7 5 20 60 15 WET
LB02 48.7 48.9 15 30 50 5 MST
LB02 48.9 49.2 10 20 60 10 WET
LB02 49.2 49.3 80 15 5 MST
LB02 49.3 51
LB02 51 51.85 5 15 75 5 QZ MS CARB
O WET
LB02 51.85 52.2 10 20 70 QZ MST
LB02 52.2 53.6 WET
LB02 53.6 54.25 5 20 70 5 WET
LB02 54.25 55.6 5 20 70 5 WET
LB02 55.6 56.2 50 48 2 CLAY MST
LB02 56.2 56.6 10 20 70 WET
LB02 56.6 56.7 30 40 30 MST
LB02 56.7 56.9 50 40 10 MST
LB02 56.9 58.15 5 20 70 5 WET
LB02 58.15 58.4 15 40 55 WET
LB02 58.4 58.8 10 30 60
LB02 58.8 59.3
Diamond core drilling in the Lower Balonne 38
LB03: Powrunna Rd Coordinates: 634750, 6902390 NRM&E Register No : 42220207 Date Logged: 22/10/2002 – 23/10/2002
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB03 0 0.6
LB03 0.6 1.6 2.5yr4/6 30 30 60 CLAY QZ MN HUM
LB03 1.6 1.75 2.5yr4/6 50 20 30 CLAY MST
LB03 1.75 3 10yr7/3 30 30 40 QZ MN CLAY HUM
LB03 3 3.2 10yr7/3 40 30 40 QZ MN HUM
LB03 3.2 4.6 10yr7/3 40 30 30 QZ CARB HUM
LB03 4.6 5 2.5y6/3 40 40 20 QZ CARB HUM
LB03 5 5.6 2.5y6/2 5yr4/6 60 30 10 QZ CLAY FEOX HUM
LB03 5.6 5.8 2.5y6/2 5yr4/6 65 25 10 QZ CLAY FEOX HUM
LB03 5.8 6.2 2.5y6/2 5yr4/6 60 25 15 QZ CLAY FEOX HUM
LB03 6.2 6.9 2.5y6/2 65 20 15 QZ CLAY FEOX HUM
LB03 6.9 7.25 2.5y6/2 70 20 10 QZ CLAY FEOX HUM
LB03 7.25 8.7 2.5y6/2 70 20 10 QZ CLAY FEOX HUM
LB03 8.7 9.3 2.5y6/2 5yr5/6 20 30 50 QZ CLAY FEOX HUM
LB03 9.3 10.7 2.5y6/3 75 20 5 QZ CLAY FEOX HUM
LB03 10.7 13.2 5yr5/6 2.5y6/3 15 25 60 QZ CLAY FEOX HUM
LB03 13.2 14.3 5yr5/6 2.5y6/3 10 25 65 QZ CLAY FEOX MST
LB03 14.3 14.8 2.5y6/3 10yr5/6 15 30 55 QZ CLAY GOE MST
LB03 14.8 17 7.5yr5/6 2.5y6/3 8 20 70 2 QZ FEOX GOE WET
LB03 17 17.5
LB03 17.5 20.4
LB03 20.4 20.75 7.5yr5/6 2.5y6/3 5 20 60 15 QZ FEOX GOE WET
LB03 20.75 21.5 2.5y6/3 10yr5/6 10 20 50 20 QZ GOE MST
LB03 21.5 23 2.5y6/4 30 40 30 QZ CLAY MN DMP
LB03 23 24 10yr5/4 40 40 20 QZ CLAY DMP
LB03 24 24.5 10yr5/4 30 40 30 QZ CLAY DMP
LB03 24.5 25.85 10yr5/4 10 20 70 QZ CLAY WET
LB03 25.85 26.4 10yr5/8 10 30 60 QZ CLAY HUM
LB03 26.4 26.8
LB03 26.8 28.45 10yr6/4 10 20 70 QZ CLAY CARB
O WET
LB03 28.45 29.9
LB03 29.9 31.4 5 15 70
LB03 31.4 31.9 5 20 65 10 QZ WET
LB03 31.9 32.65
LB03 32.65 33.8 WET
LB03 33.8 34.6 5 15 75 5 WET
Diamond core drilling in the Lower Balonne 39
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB03 34.6 35.4 5 20 75
LB03 35.4 35.7 50 30 20 MST
LB03 35.7 36.8 10 20 70 WET
LB03 36.8 38 10 20 70 5 MST
LB03 38 38.9 20 20 55 5 MST
LB03 38.9 40.2 2.5y6/3 10yr5/8 5 20 75 WET
LB03 40.2 40.7 WET
LB03 40.7 41.25 5 20 70 5 WET
LB03 41.25 41.3 60 25 15 WET
LB03 41.3 41.4 5 20 75 WET
LB03 41.4 41.75 WET
LB03 41.75 42.9 5 15 80 WET
LB03 42.9 43 10 20 60 10 WET
LB03 43 43.1 10 20 70 WET
LB03 43.1 44.7 WET
LB03 44.7 47 5gy5/1 10 25 60 5 WET
LB03 47 47.5 5gy5/1 10 20 70 WET
LB03 47.5 47.9 5gy5/1 WET
LB03 47.9 48.45 5gy5/1 10 20 70 WET
LB03 48.45 51 5gy5/1 WET
LB03 51 51.8 5gy5/1 10 20 50 20 WET
LB03 51.8 51.85 5gy5/1 10 10 40 40 WET
LB03 51.85 52 5gy5/1
LB03 52 52.15 5gy5/1
LB03 52.15 52.2 5gy5/1
LB03 52.2 52.35 5gy5/1 70
LB03 52.35 52.5 5gy5/1
LB03 52.5 53.2 5gy5/1 70
LB03 53.2 54 5gy5/1
LB03 54 54.8 5gy5/1 10 20 70 MST
LB03 54.8 55 5gy5/1 5 10 60 25 WET
LB03 55 55.3 5gy5/1 20 20 60 WET
LB03 55.3 55.5 5gy5/1 10 20 65 5 WET
LB03 55.5 56.3 5gy5/1 5 20 75 WET
LB03 56.3 57 WET
LB03 57 58.3 5 20 70 5 WET
LB03 58.3 58.55 30 30 35 5
LB03 58.55 59.45 glay3 50 40 10 MST
LB03 59.45 59.8
Diamond core drilling in the Lower Balonne 40
LB04: Wombil Downs Coordinates: 592790, 6864078 NRM&E Register No : 42220208 Date Logged: 08/11/2002 – 09/11/2002
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB04 0 0.6 2.5yr4/6 30 40 30 CLAY QZ HUM
LB04 0.6 1.1 2.5yr4/6 50 30 20 CLAY QZ CARB HUM
LB04 1.1 1.7 2.5yr4/6 50 35 15 CLAY QZ HUM
LB04 1.7 3.7 10yr7/3 5yr5/8 30 40 30 CLAY QZ FEOX HUM
LB04 3.7 5.95 10yr7/3 10r3/6 45 40 15 CLAY QZ FEOX HUM
LB04 5.95 6.1 10yr7/3 2.5yr4/8 25 35 40 CLAY QZ FEOX HUM
LB04 6.1 8.1 2.5y6/1 2.5yr3/6 60 30 10 CLAY QZ FEOX HUM
LB04 8.1 10.3 10yr7/2 2.5yr4/8 30 40 30 CLAY QZ FEOX HUM
LB04 10.3 11.05 10yr7/2 2.5yr4/8 50 40 10 CLAY QZ FEOX HUM
LB04 11.05 12 2.5yr4/8 10yr7/2 25 30 45 CLAY QZ FEOX HUM
LB04 12 15.45 2.5yr4/8 10yr7/2 30 30 40 CLAY QZ FEOX HUM
LB04 15.45 18 10yr6/3 10yr6/6 40 30 30 CLAY QZ MN HUM
LB04 18 21.1 10yr6/3 10yr6/6 50 30 20 CLAY QZ MN HUM
LB04 21.1 25.8 10yr5/2 7.5yr5/6 70 25 5 CLAY QZ MN HUM
LB04 25.8 27 7.5yr5.6 10yr6/2 55 30 15 CLAY QZ MN HUM
LB04 27 28.3 10yr5/2 10yr5/4 80 18 2 CLAY QZ HUM
LB04 28.3 30.2 10yr5/2 10yr5/4 55 25 20 CLAY QZ HUM
LB04 30.2 30.8 10yr6/2 2.5yr4/8 70 25 5 CLAY QZ FEOX HUM
LB04 30.8 31.7 10yr6/2 2.5yr4/8 50 30 20 CLAY QZ FEOX HUM
LB04 31.7 35.4 10yr6/2 2.5yr4/8 70 25 5 CLAY QZ FEOX HUM
LB04 35.4 37.5 2.5yr4/8 2.5y6/3 20 20 60 QZ CLAY FEOX HUM
LB04 37.5 39.1 2.5y6/3 10 15 75 QZ CLAY MN DMP
LB04 39.1 40.3 2.5y6/2 2.5y6/6 80 15 5 CLAY QZ MN DMP
LB04 40.3 42.2 2.5y6/2 2.5y6/6 70 20 10 CLAY QZ MN HUM
LB04 42.2 44.1 2.5y6/2 10yr5/8 80 15 5 CLAY QZ MN HUM
LB04 44.1 45.1 2.5y6/2 10yr5/8 70 20 10 CLAY QZ MN HUM
LB04 45.1 45.6 2.5y6/2 10yr5/8 80 15 5 CLAY QZ MN HUM
LB04 45.6 48.8 2.5y6/2 5yr5/8 60 25 15 CLAY QZ GOE HUM
LB04 48.8 49.1 10yr6/2 10yr5/6 80 15 5 CLAY QZ GOE HUM
LB04 49.1 50.8 10yr6/2 10yr5/6 70 20 10 CLAY QZ MN HUM
LB04 50.8 54.1 10yr6/2 10yr5/6 45 25 30 CLAY QZ MN DMP
LB04 54.1 55 10yr5/6 10yr6/8 15 25 60 QZ CLAY GOE WET
LB04 55 56.5
LB04 56.5 59.1 10yr6/4 10yr6/8 5 20 75 QZ CLAY GOE MST
LB04 59.1 61 10yr5/2 7.5yr5/8 15 25 60 QZ CLAY GOE MST
Diamond core drilling in the Lower Balonne 41
LB05: Munro Rd (St George Irrigation Area) Coordinates: 667393, 6878738 NRM&E Register No : 42220209 Date Logged: 28/10/2002 – 29/10/2002
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB05 0 0.2 10yr2/2 70 25 5 CLAY QZ
LB05 0.2 0.9 10yr2/2 70 20 10 CLAY QZ DMP
LB05 0.9 1.7 10yr5/4 75 20 5 CLAY QZ DMP
LB05 1.7 3.3 10yr5/4 65 25 10 CLAY QZ DMP
LB05 3.3 5.8 10yr5/4 10yr5/6 50 30 20 CLAY QZ DMP
LB05 5.8 6.2 10yr5/4 10yr5/6 50 25 20 5 CLAY QZ DMP
LB05 6.2 7.4 2.5y5/3 10 20 50 20 QZ CLAY MN WET
LB05 7.4 9
LB05 9 10.2
LB05 10.2 11 10yr6/3 10yr6/8 10 20 65 5 QZ WET
LB05 11 12.1 10yr6/3 10yr6/8 10 25 50 15 QZ MST
LB05 12.1 12.2 10yr6/3 10yr6/8 10 15 40 35 QZ MST
LB05 12.2 13.6 10yr6/3 10yr6/8 10 20 60 10 QZ MST
LB05 13.6 13.8 10yr6/3 10yr6/8 10 15 45 30 QZ MST
LB05 13.8 14.6 10yr6/3 10yr6/8 10 20 60 10 QZ MST
LB05 14.6 19.2 2.5y5/2 10yr6/8 75 20 5 CLAY DMP
LB05 19.2 20.3 2.5y6/2 2.5yr3/6 80 18 2 CLAY FEOX DMP
LB05 20.3 24.4 2.5y6/2 2.5yr3/6 70 25 5 CLAY FEOX DMP
LB05 24.4 24.9 5yr4/6 2.5y6/2 DMP
LB05 24.9 29.6 10yr8/1 10yr7/8 DMP
LB05 29.6 31.8 10yr8/1 MST
LB05 31.8 32 10yr8/1 DMP
LB05 32 32.9 10yr8/1 MST
LB05 32.9 37.85 10yr8/2 DMP
LB05 37.85 40.65 10yr8/2 MST
LB05 40.65 43.35 10yr8/2 WET
LB05 43.35 43.95 10yr8/2 WET
LB05 43.95 45.7 10yr8/2 WET
LB05 45.7 49.95 10yr8/2 WET
LB05 49.95 47.4 10yr8/1 MST
LB05 47.4 48.4 MST
LB05 48.4 51.1 10yr8/1 DMP
LB05 51.1 53.1 10yr6/8 10r3/6 MST
LB05 53.1 59.3 10yr6/8 DMP
Diamond core drilling in the Lower Balonne 42
LB06: Yamburgan Coordinates: 639267, 6846769 NRM&E Register No : 42220210 Date Logged: 04/11/2002 – 05/11/2002
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB06 0 0.5 10yr4/2 60 30 10 CLAY QZ HUM
LB06 0.5 1.7 10yr4/3 10yr5/8 65 20 15 CLAY QZ MN HUM
LB06 1.7 2.9 10yr4/3 10yr5/8 70 25 10 CLAY QZ MN HUM
LB06 2.9 4 10yr4/3 10yr6/6 50 25 25 CLAY QZ MN HUM
LB06 4 4.2 2.5y5/2 7.5yr5/8 65 20 15 CLAY QZ MN DMP
LB06 4.2 5.2 2.5y6/3 5yr5/8 QZ MN FEOX DMP
LB06 5.2 6 10yr7/2 10yr6/8 QZ GOE MN DMP
LB06 6 6.2 10yr7/2 10yr6/8 QZ GOE DMP
LB06 6.2 7.9 5yr6/1 2.5y7/3 QZ CARB GOE DMP
LB06 7.9 8 7.5yr3/1 MN QZ CLAY DMP
LB06 8 9.3 2.5y6/1 10yr6/8 CLAY QZ GOE DMP
LB06 9.3 12 7.5yr8/1 10r3/2 DMP
LB06 12 15.8 7.5yr7/1 DMP
LB06 15.8 18 7.5yr7/1 10r5/6 DMP
LB06 18 19.9 7.5yr7/1 10r5/6 DMP
LB06 19.9 20.1 10yr5/8 10yr5/8 DMP
LB06 20.1 20.8 10yr8/2 DMP
LB06 20.8 23.9 10yr8/2 MST
LB06 23.9 24.4 10yr8/2 10yr5/8 DMP
LB06 24.4 27 10yr8/2 10yr5/8 DMP
LB06 27 29.7 10yr8/2 DMP
LB06 29.7 30.8 DMP
LB06 30.8 33.6 2.5y7/3 DMP
LB06 33.6 34.6 2.5y7/3 DMP
LB06 34.6 45 2.5y7/1 10yr6/8 DMP
LB06 45 49.6 5y6/3 2.5y5/6 MST
LB06 49.6 51 gley4 DMP
LB06 51 53 DMP
LB06 53 56.5 DMP
LB06 56.5 59.5 DMP
Diamond core drilling in the Lower Balonne 43
LB07: Jakelwar Rd Coordinates: 635004, 6886243 NRM&E Register No : 42220211 Date Logged: 24/10/2002 – 25/10/202
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB07 0 0.3 7.5yr3/1 70 25 5 CLAY QZ HUM
LB07 0.3 0.9 10yr4/1 65 30 5 CLAY QZ MN HUM
LB07 0.9 1.3 2.5y6/3 60 25 15 CLAY QZ MN HUM
LB07 1.3 3.1 2.5y6/3 10yr5/6 60 20 20 CLAY QZ CARB HUM
LB07 3.1 4.15 2.5y7/3 7.5yr5/6 50 25 25 CLAY QZ GOE DMP
LB07 4.15 4.4 2.5yr6/3 7.5yr5/6 45 30 25 CLAY QZ GOE DMP
LB07 4.4 6 2.5yr6/3 7.5yr5/6 20 30 50 QZ GOE FEOX DMP
LB07 6 6.75 10yr7/3 7.5yr5/6 40 40 20 QZ GOE FEOX DMP
LB07 6.75 7.5 10yr7/2 7.5yr5/6 15 30 55 QZ GOE DMP
LB07 7.5 7.9 10yr7/2 7.5yr5/6 35 35 30 QZ GOE MN DMP
LB07 7.9 9.1 10yr7/2 7.5yr5/6 55 30 15 QZ GOE CARB DMP
LB07 9.1 11.75 10yr7/2 7.5yr5/6 30 30 40 QZ GOE MN DMP
LB07 11.75 11.95 10yr5/8 2.5y6/2 10 30 60 QZ GOE MST
LB07 11.95 13
LB07 13 13.7 10yr6/4 10 30 60 QZ GOE MST
LB07 13.7 15 10yr6/4 5 25 70 QZ GOE WET
LB07 15 18.35 10yr6/4 WET
LB07 18.35 18.9 10yr6/4 5 20 70 5 QZ WET
LB07 18.9 18.95 10yr6/2 70 25 5 CLAY QZ MST
LB07 18.95 20.3 10yr6/4 5 15 75 5 QZ WET
LB07 20.3 20.35 10yr6/2 2.5y3/2 65 25 10 CLAY MST
LB07 20.35 20.5 50 30 20 MST
LB07 20.5 20.9 65 25 10 MST
LB07 20.9 22.15 10yr5/2 10yr4/4 60 35 5 CLAY DMP
LB07 22.15 23 10yr5/2 10yr4/4 25 25 50 DMP
LB07 23 27 QZ MST
LB07 27 28.3 10yr6/2 5 15 75 5 MST
LB07 28.3 28.4 30 20 40 10 WET
LB07 28.4 29.3
LB07 29.3 30.35 5 15 75 5 WET
LB07 30.35 30.6 10yr6/1 40 20 20 20 MST
LB07 30.6 30.85 10 20 70 MST
LB07 30.85 32.85 2.5y7/2 2.5y6/4 80 15 5 DMP
LB07 32.85 36.5 2.5yr4/6 10yr5/8 70 20 10 CLAY QZ FEOX DMP
LB07 36.5 37.4 2.5yr4/6 10yr5/8 70 15 5 MST
LB07 37.4 38.7 2.5yr4/6 10yr5/8 70 20 10 MST
Diamond core drilling in the Lower Balonne 44
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB07 38.7 39.75 2.5yr4/6 10yr5/8 70 15 5 MST
LB07 39.75 40.8 2.5yr4/6 MST
LB07 40.8 41.7 2.5yr4/6 2.5y8/2 DMP
LB07 41.7 42 2.5yr4/6 DMP
LB07 42 42.7 2.5yr4/6 MST
LB07 42.7 45.25 2.5yr8/2 7.5yr6/6 MST
LB07 45.25 47.7 2.5yr8/2 10yr7/4 MST
LB07 47.7 48 2.5yr8/2 10yr7/4 DMP
LB07 48 50.5 10r4/4 DMP
LB07 50.5 51 10r4/4 DMP
LB07 51 54 10r4/4 DMP
LB07 54 57
LB08: Cubbie Coordinates: 601580, 6835063 NRM&E Register No : 06/11/2002 – 07/11/2002 Date Logged: 42220212
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB08 0 0.4
LB08 0.4 0.1 10yr3/2 80 18 2 CLAY DMP
LB08 0.1 1.6 10yr5/2 10yr6/8 65 20 15 CLAY QZ HUM
LB08 1.6 2.3 10yr4/2 10yr6/8 40 30 30 QZ CLAY MN HUM
LB08 2.3 3.8 10yr5/3 5yr5/8 20 30 50 QZ CLAY MN HUM
LB08 3.8 3.9 2.5y5/4 10yr6/8 30 35 45 QZ CLAY MN DMP
LB08 3.9 5 2.5y6/3 10yr6/8 10 20 70 QZ CLAY GOE WET
LB08 5 6 QZ CLAY
LB08 6 7.6 10yr6/4 10yr6/8 10 15 75 QZ CLAY WET
LB08 7.6 8.3 10yr6/4 5 15 80 QZ CLAY WET
LB08 8.3 9.1 10yr6/4 10 15 75 QZ CLAY MST
LB08 9.1 10.2 2.5y5/4 10yr6/8 15 20 60 5 QZ CLAY MST
LB08 10.2 11.5 2.5y6/3 10 20 68 2 QZ CLAY MST
LB08 11.5 12.4 2.5y6/3 5 15 70 10 QZ CLAY MST
LB08 12.4 14.6 2.5y6/3 10yr6/8 10 15 63 2 QZ CLAY GOE MST
LB08 14.6 14.8 2.5y6/3 10 20 60 10 QZ CLAY WET
LB08 14.8 15.1 2.5y6/3 QZ MST
LB08 15.1 15.6 15 20 65 QZ MST
LB08 15.6 15.75 10yr6/8 65 20 5 CLAY DMP
LB08 15.75 15.95 2.5y6/3 10yr6/8 15 20 65 QZ DMP
LB08 15.95 16.1 2.5y6/1 10yr5/8 65 25 10 CLAY HUM
Diamond core drilling in the Lower Balonne 45
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB08 16.1 17.8 10yr7/2 10yr5/8 30 30 40 CLAY MN HUM
LB08 17.8 19.3 10yr7/2 10yr5/8 15 35 50 HUM
LB08 19.3 20.05 10yr5/8 15 20 68 2 DMP
LB08 20.05 21.8 2.5y5/1 10yr6/8 70 25 5 CLAY MN GOE DMP
LB08 21.8 22.4 2.5y5/1 30 30 40 DMP
LB08 22.4 23.05 2.5y6/4 10 15 75 WET
LB08 23.05 23.3 2.5y5/1 15 30 55 WET
LB08 23.3 24
LB08 24 24.7 10yr6/4 10 15 75 WET
LB08 24.7 24.75 10yr6/2 30 20 50 MST
LB08 24.75 25 10yr6/4 5 15 80 WET
LB08 25 27
LB08 27 29.4 10yr6/4 10yr6/8 5 15 80 WET
LB08 29.4 30
LB08 30 32.3 10yr6/4 10 15 75 WET
LB08 32.3 32.4 10yr5/3 10yr6/4 15 20 65 MST
LB08 32.4 33 MST
LB08 33 34.05 15 25 60 MST
LB08 34.05 34.2 15 25 40 20 MST
LB08 34.2 34.6 10 20 70 MST
LB08 34.6 35 30 25 45 MST
LB08 35 35.1 15 20 65 MST
LB08 35.1 35.6 35 20 45 MST
LB08 35.6 36 10yr6/3 MST
LB08 36 36.2 2.5y5/1 45 30 25
LB08 36.2 36.7 10yr6/3 10 15 75
LB08 36.7 37 2.5y5/1 75 20 5
LB08 37 37.8 10yr6/3 2.5y5/1 15 20 65
LB08 37.8 39
LB08 39 40.1 10yr6/8 5 15 80 WET
LB08 40.1 40.4 2.5y6/3 10yr6/8 25 20 55
LB08 40.4 41 2.5y6/3 10yr6/8 30 20 50
LB08 41 41.65 2.5y6/3 10yr6/8 15 20 65
LB08 41.65 41.7 2.5y5/2 60 30 10
LB08 41.7 42
LB08 42 42.05 2.5y5/2 65 30 5
LB08 42.05 43.55 2.5y6/3 5 15 80
LB08 43.55 43.7 2.5y5/2 10yr6/8 50 25 25
LB08 43.7 45
LB08 45 45.3 2.5y6/3 10 20 50 20
LB08 45.3 47 2.5y6/3 5 15 80
LB08 47 47.7 10yr6/6 2.5yr4/8 10 25 65
Diamond core drilling in the Lower Balonne 46
Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB08 47.7 48
LB08 48 48.3 2.5y6/1 45 25 30
LB08 48.3 49.5 10yr6/4 10yr6/8 15 25 60
LB08 49.5 50
LB08 50 51.3 10yr6/2 15 20 65 MST
LB08 51.3 54.1 2.5y5/3 7.5yr5/8 70 25 5 HUM
LB08 54.1 55.8 2.5y5/3 7.5yr5/8 50 45 10 HUM
LB08 55.8 55.85 10yr6/4 10 25 65 HUM
LB08 55.85 56.4
LB08 56.4 59
LB08 59 60.5 10yr6/4 5 10 85
LB08 60.5 61.3 10yr5/6 10 15 75 WET
LB08 61.3 64.5 10r3/1 10r3/3 90 10 HUM
LB08 64.5 67.5 10r4/1 10r3/3 70 28 2 HUM
LB08 67.5 68.4 10r4/1 10r3/3 50 30 20 HUM
LB08 68.4 69 10r4/1 10r3/3 70 28 2 HUM
Diamond core drilling in the Lower Balonne 47
LB09: Ballangarie Coordinates: 669267, 6855008 NRM&E Register No : 41720070 Date Logged: 02/11/2002 – 03/11/2002 Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB09 0 0.9 2.5y4/2 60 30 10 CLAY QZ HUM
LB09 0.9 1.7 10yr5/3 40 25 35 CLAY QZ FEOX HUM
LB09 1.7 3.6 10yr5/3 50 30 20 CLAY QZ CARB HUM
LB09 3.6 4.8 10yr6/3 10 20 70 QZ DMP
LB09 4.8 6.75 10yr6/3 10yr6/8 10 25 65 QZ GOE DMP
LB09 6.75 6.85 10yr6/3 30 20 30 20 CLAY QZ DMP
LB09 6.85 7 10yr5/2 70 25 5 CLAY QZ DMP
LB09 7 9 10yr6/2 10yr6/8 15 20 65 QZ GOE MST
LB09 9 9.3 10yr6/2 40 30 30 QZ DMP
LB09 9.3 10.4 10yr6/3 10yr6/8 15 20 65 QZ FEOX GOE MST
LB09 10.4 11.8 10yr6/3 10yr6/8 10 20 60 10 QZ GOE MST
LB09 11.8 12 10yr5/2 60 30 10 CLAY QZ DMP
LB09 12 12.25 10yr6/3 7.5yr5/8 40 20 20 20 CLAY QZ FEOX MST
LB09 12.25 12.3 10yr5/1 65 30 5 CLAY QZ DMP
LB09 12.3 15.5 2.5y7/3 10yr6/8 15 30 55 QZ GOE DMP
LB09 15.5 16.95 2.5y7/3 10yr6/8 25 20 40 15 QZ CLAY GOE MST
LB09 16.95 17.15 10yr6/2 10yr6/8 65 30 5 CLAY QZ GOE DMP
LB09 17.15 18.7 2.5y7/3 10yr6/8 15 25 60 QZ CLAY GOE MST
LB09 18.7 19.2 2.5y7/3 15 20 65 QZ CLAY MST
LB09 19.2 22.8 2.5y5/2 7.5yr5/8 75 20 5 CLAY QZ FEOX DMP
LB09 22.8 23.2 7.5yr5/6 QZ GOE FEOX DMP
LB09 23.2 23.6 2.5y7/2 7.5yr5/6 QZ GOE DMP
LB09 23.6 27.4 2.5y6/2 7.5yr5/6 DMP
LB09 27.4 30.4 2.5y6/4 7.5yr5/6 20 30 50 MST
LB09 30.4 31.7 2.5y6/3 2.5yr4/8 60 20 20 DMP
LB09 31.7 32.9 10yr8/2 DMP
LB09 32.9 35.95 10yr8/1 DMP
LB09 35.95 37.95 10yr8/1 MST
LB09 37.95 39.5
LB09 39.5 42 10yr8/1 DMP
LB09 42 45 10yr8/1 DMP
LB09 45 47 10yr8/1 MST
LB09 47 48 2.5yr6/4 10r5/4 MST
LB09 48 51 10yr8/1 2.5yr6/4 MST
LB09 51 54 10yr8/1 DMP
LB09 54 56.5 10yr8/1 10yr6/8 DMP
LB09 56.5 57 2.5yr6/4 DMP
LB09 57 60 2.5y7/4 2.5yr6/4 DMP
Diamond core drilling in the Lower Balonne 48
LB10: North Weengallon Coordinates: 703154, 6873502 NRM&E Register No : 41720071 Date Logged: 31/10/2002 – 01/11/2002 Bore ID
From (m)
To (m)
Colour 1 Colour 2 Clay %
Silt %
Sand %
Gravel %
Mineral 1
Mineral 2
Minor Mineral
Moisture
LB10 0 0.4 7.5yr4/2 60 30 10 CLAY QZ HUM
LB10 0.4 1.6 7.5yr5/3 70 25 5 CLAY QZ GOE HUM
LB10 1.6 2.7 2.5y6/3 7.5yr5/8 70 20 10 CLAY QZ GOE DMP
LB10 2.7 3.2 2.5y6/3 7.5yr5/8 70 20 10 CLAY FEOX CARB DMP
LB10 3.2 7.9 10yr6/1 10r4/6 65 30 5 CLAY FEOX GOE DMP
LB10 7.9 9.1 2.5y8/1 10r4/6 DMP
LB10 9.1 12.7 10yr8/1 10r4/6 GYP MST
LB10 12.7 14.9 10r4/6 10yr6/6 FEOX GYP DMP
LB10 14.9 17.6 10yr6/6 GOE GYP MST
LB10 17.6 20.6 10yr6/6 MST
LB10 20.6 25 10yr8/1 MST
LB10 25 27.2 10yr7/6 MST
LB10 27.2 30 10yr7/2 MST
LB10 30 31.6 10yr7/2 MST
LB10 31.6 32.7 10yr7/2 DMP
LB10 32.7 38.3 10yr7/2 MST
LB10 38.3 38.9 10yr6/8 DMP
LB10 38.9 44.8 10yr7/2 DMP
LB10 44.8 48 HUM
LB10 48 51 HUM
LB10 51 54 HUM
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