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Canada Fluorspar Inc.gis.geosurv.gov.nl.ca/geofilePDFS/Batch2016/001L_0239.pdf · The Canada Fluorspar (NL) Inc. property is comprised of three Mine Leases and six Mineral Claim Blocks

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Page 1: Canada Fluorspar Inc.gis.geosurv.gov.nl.ca/geofilePDFS/Batch2016/001L_0239.pdf · The Canada Fluorspar (NL) Inc. property is comprised of three Mine Leases and six Mineral Claim Blocks
Page 2: Canada Fluorspar Inc.gis.geosurv.gov.nl.ca/geofilePDFS/Batch2016/001L_0239.pdf · The Canada Fluorspar (NL) Inc. property is comprised of three Mine Leases and six Mineral Claim Blocks

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Canada Fluorspar Inc.

2012

Assessment Report

For

Canada Fluorspar (NL) Inc.

License 018210M,

NTS 1L/14

Newfoundland and Labrador

Submitted by;

Phonce Cooper, P. Eng.

James Reeves, P. Geo.

Frank Pitman, CET

Norman Wilson, P. Eng.

Total Expenditure: $1667.50

For:

Canada Fluorspar (NL) Inc.

January 2012

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Table of Contents

Page No.

1.0 Summary and Recommendations 3

1.1 Introduction 3

1.2 Location 3

1.3 Previous Work 6

1.4 Physiography 7

1.5 Regional Geology 7

1.6 Local Geology 8

1.7 Work Completed 9

1.8 Conclusions and Recommendations 9

Statement of Expenditure

References

List of Figures

Figure 1.0 Location Map of Newfoundland 4

Figure 2.0 Location Map of Property 5

Figure 3.0 Claim Map Showing the Location of the Licence 6

Appendices

Appendix 1 List of Personnel

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

1.0 Summary and Recommendations

Fluorite mineralization in the St Lawrence area has been known since the late 1800’s.

Exploration work, undertaken in the early 1900’s, identified over 35 fluorite veins. The St

Lawrence Corporation undertook the first mining operations on the Black Duck Vein in

1933. Mining operations were developed on a number of the larger veins with the

Tarefare, Director and Blue Beach veins providing the largest resource. Mine operations

were continued with occasional short periods of mine closures until 1990 when the mines

were closed.

Burin Minerals began work at developing plans to reopen the mines in the St Lawrence

area in the early 1990’s. During the past twenty years work continued toward the

develop the resource base of the property through the completion of 43-101 reports, Pre

Feasibility reports and a diamond drill program. The Canada Fluorspar (NL) Inc. property

is comprised of three Mine Leases and six Mineral Claim Blocks.

This assessment report documents the progress for Mineral Claim Block 018210M during

the year 2011.

1.1 Introduction

Canada Fluorspar (NL) Inc. holds the Mineral Claim Block Number 018210M in the St

Lawrence area of Newfoundland. Exploration and mining of fluorite in the area has been

conducted in the area over the past one hundred years. The industrial demand for fluorite

is strong and the assessment and development of properties with known fluorite

mineralization continue to be an active part of the mining industry. The work that has

been conducted on Mineral Block 018210M during the past assessment period consisted

of a review of the technical data in preparation for the 2012 field season.

1.2 Location

The St Lawrence property is located near the southern tip of the Burin Peninsula,

adjacent to the Town of St Lawrence. The town is located 210 kilometers west of St

John’s, Newfoundland, Canada (See Figure 1.0). Access to the area is via an all weather-

paved road 350 kilometers distance (via the Trans Canada Highway and Route 220) from

St John’s to the Town of St Lawrence, Newfoundland (See Figure 2.0). No commercial

air transportation or rail service is available to the area. The property is bounded by UTM

coordinates (NAD 27, Zone 21) 5,193,500N and 5,194,000N and 617,000E and 617,500E

(See Figure 3.0).

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Figure 1.0

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Figure 2.0

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Figure 3.0

1.3 Previous Work

Fluorite mineralization was known to exist in the St Lawrence area since the late1800’s

but active exploration was not undertaken until the early 1900’s. Mineralization,

identified near Blue Beach, lead to the discovery of numerous fluorite veins between

1920 and 1930. The St Lawrence Corporation undertook the first recorded underground

mining operation on the Black Duck Vein in 1933 and continued work on this vein until

1941. The American Fluorspar Limited (New Fluor) began operations on the Director

and parts of the Tarefare veins in 1936. Alcan purchased the mines in 1942 and produced

fluorite from the mines until 1978 when operations ceased due to labor unrest and the

lower cost foreign supplies.

St Lawrence Fluorite Limited (Minworth-UK) acquired the mine property in the early

1980’s and undertook mining operations 1986 to 1990. Fluorite was produced was from

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

underground operations at Blue Beach and open pit operations in the Tarefare and

Director veins. Low fluorite prices resulted in the mine closure in 1990.

In 1990, the mining property was returned to the Government of Newfoundland and

Labrador. Early in 1996, Burin Minerals Limited (BML) applied the Department of

Fisheries and Oceans (DFO) for a new tailings facility at Shoal Cove Pond. Approval was

received about a year later.

Roscoe Postle Associates Inc completed a review of the diamond-drill hole and

underground assay database for the Blue Beach North and Tarefare veins in 1996. A

preliminary resource estimate was completed. Following additional drilling in 1999, the

resource estimate was subsequently revised in 2000.

1.4 Physiography

The area of the mine property is underlain by glacial till covered by varying thicknesses

of peat ranging from a few centimeters to over two metres. Outcrop exposure is scarce

inland from the coast. Till thicknesses commonly range from 2 to 4 metres in depth. The

topography of the mine area consists of gently rolling hills sloping south to the Atlantic

Ocean. Steep cliffs characterize the coast with gravel beaches in the sheltered harbours.

Vegetation consists of stunted spruce, alder and scrub brush in sheltered areas with

numerous marshes and peat bogs. Drainage is poor with terraced bogs and occasional

small brooks draining southward into the ocean.

1.5 Regional Geology

The St Lawrence fluorite veins are formed within the Avalonian belt of the Appalachian

Mountain system in eastern Newfoundland. The Avalonian belt covers an area of over

200 km in width on land and extends for more 400 km offshore. This sequence is

characterized by sections of thick, dominantly sub aerial, volcanic rocks and marine to

terrestrial clastic sedimentary rocks of late Precambrian age. Shallow marine sedimentary

and minor volcanic rocks of Cambrian age overlie these older lithologies. An angular

unconformity lies between the Cambrian rocks and the younger Devonian and

Carboniferous sedimentary and volcanic rocks.

Several late Precambrian and late Devonian to Carboniferous aged granites intruded the

Avalonian belt rocks. These magmas were generated and emplaced in a variety of arc and

back arc or analogous continental arc settings along the length of the Avalonian belt

between 635 Ma and 550 Ma. The calc-alkaline rocks erupted as subaerial; caldera

pyroclastic rocks, flows and domes. The felsic-to-intermediate magmas were the most

probable source of the heat and fluids for the large, spatially associated, hydrothermal

systems. Folding and thrust faulting of the Cambrian and older sequences preceded the

intrusion of the Carboniferous age St Lawrence granite (SLG).

The St Lawrence granite intrudes the shales and limestones of the Brigus Formation and

the Late Proterozoic volcanics of the Burin Series. Van Alstine (1948) described the

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

granite as an alaskite type, derived from a highly differentiated magma that was intruded

with very little assimilation of the surrounding country rock. The granite has a typical

porphyritic texture with three well-developed joint sets. One set parallels the north-south

elongate trend of the granite, a second set is normal to the north-south trend and a third

set is horizontal. Quartz porphyry dykes and sills have been observed in the area and

appear to have a similar chemical composition and the granite. These dykes and sills are

considered to have come from the same source as the granite.

The pluton was been radiometrically age dated as 315+/- 10 Ma. This age places the

granite in the Lower Pennsylvanian age (Bell and Bleinkensop 1976).

Teng (1974) suggests that the granite was emplaced in four separate stages. The first

phase introduced the rhyolite sills and dykes to the area. The remaining phases introduced

larger volumes of magma with associated volatiles carrying the mineralization and

causing the associated alteration.

1.6 Local Geology

St Lawrence is hoist to over 40 significant fluorite bearing veins. These veins vary in

width from a few centimeters to locally over 30 meters with a strike length ranging up to

3 kilometers. The granite hoist is a porphyritic peralkaline Carboniferous age pluton that

has intruded Late Precambrian and Cambrian volcanic and sedimentary rocks. The grain

size is characteristic of intrusive rocks and exhibits decreases toward the contact with the

older rocks. Within the granite, tufficite, comprised of angular granite fragments in a fine

matrix has been observed. Miarolitic structures are present in the granite adjacent to the

contacts with the older rocks. Pink quartz-feldspar porphyry dykes are present outside the

western margin of the granite intrusion.

The fluorite veins in the granite are associated with the jointing and faulting within the

batholith. The thicker fluorite veins exhibit features commonly associated with multiple

periods of movement and fluid injection. The veins exhibit features that are characteristic

of boudinage type structures with a variation in thickness along strike and with depth.

The veins contain higher grades pods and varying amounts of mineralized granite

breccias along one or both sides of the vein structure.

Three major types of fluorite veins have been identified in the area. They are as follows:

1) Low grade veins with an average width of 7m and containing grades varying from

35% to 70% CaF2. This type includes Tarefare, Director and Blue Beach North

and South veins.

2) High grade veins with an average thickness of less than 1m and containing grades

averaging 95% CaF2. This type includes Lord and Lady Gulch, Iron Springs and

Canal veins.

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

3) The third type includes veins in the peripheral areas and they contain significant

amounts of barite with fluorite. This type includes Meadow Woods, Lunch Pond,

Clam Pond and Anchor Drogue veins.

Van Alstine, 1948, suggested that the mineralized veins in the peripheral areas of the

SLG pluton might extend to greater depth than those in the more central areas due to the

affects of erosion.

1.7 Work Completed

Work completed during the past year consisted of a review of the available technical data

with the objective of designing of a field program to be conducted during 2012.

The mineral block lies to the south of the Grebes Nest Vein and southwest of the Tarefare

Vein. The area has potential to contain structures containing fluorite mineralization. The

limited rock exposure inland from the coast will require the use of geophysical

techniques and diamond drilling to assess the mineral potential of the area.

1.8 Conclusions and Recommendations

Assessment of the available technical information suggests that the mineral block may

have a potential to contain fluorite vein(s). The limited amount of rock exposure in this

area will require the use of geophysical techniques to further evaluate the mineral

potential of this block. The determination of a suitable geophysical method, followed by

a field trial to determine the effectiveness of the system is recommended. Assuming, the

geophysical method produces positive results, a grid(s) should be established over

selected area(s) and a survey should be undertaken.

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

REFERENCES

Alcan archives : Potential references from 14 boxes of files, maps, reports, and

correspondence, Department of Natural Resources, St. John's.

Buller, A.E. :Report on Cera Fluorite Project on Cera-Nalco Lot 4 in the Mount

Margaret Area of the St. Lawrence Area, Newfoundland. NF Miner. (1974).

Carr, G. F. :Industrial Minerals of Newfoundland; Department of Mines and Technical

Surveys, Ottawa, Report No. 855 Pages 51-60, 1958.

Howse, A., Dean, P., Swinden, S., Kean, B., and Morrisey, F. : Fluorspar Deposits of the

St. Lawrence Area, Newfoundland: Geology and Economic Potential. Newfoundland

Miner. Development Division, Report 83-09, 23 pages (1983).

Mason, R.J. : Diamond Drilling Data from the 1973 Diamond Drilling Program to

accompany Cera-Nalco Lot Program, Part 2 in the Mount Margaret Area of the Burin

Peninsula, Newfoundland. NF Miner. (1973).

Robertson D.S. and Associates Limited. : Hydrogeochemical Reconnaissance On

Property Of Newfoundland Fluorspar Limited, St. Lawrence Newfoundland. Internal

Report for the Aluminum Company of Canada. (1972).

Robertson D.S. and Associates Limited. : Geophysical and Geochemical Survey –

Mount Margaret Area. Newfoundland Fluorspar Works. Internal Report for the

Aluminum Company of Canada Ltd., St. Lawrence, Newfoundland. (1974).

Strong, D.F., O'Brien, S.J., Taylor, S.W., Strong, P.G., and Wilton, D.H. : Geology of

the Marystown (1M/3) and St. Lawrence (1L/14) Map Areas, Newfoundland.

Newfoundland Miner. Development Division. Report 77-8, 81 pages (1978).

Teng, H.C. : A Lithogeochemical Study of the St. Lawrence granite, Newfoundland.

Unpublished M. Sc. Thesis, Memorial University of Nfld. (1974).

Teng, H.C., and Strong, D.F. : Geology and geochemistry of the St. Lawrence

peralkaline granite and associated fluorite deposits, south east Newfoundland. Canadian

Journal of Earth Sciences, Vol. 113, pages 1374 to 1385 (1976)

Tilsley, J.E. : Hydrogeochemical Reconnaissance Survey on Property of the

Newfoundland Fluorspar Ltd on The St. Lawrence Area, Newfoundland. Newfoundland

Miner. Development Division. (1972b).

Tilsley, J.E. : Progress Report, Mount Margaret Pond Area, Newfoundland. NF. Miner,

Development Division. (1972c).

Tilsley, J.E. : Report on Airborne EM and Magnetic Surveys of the St. Lawrence Claims

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Area, Newfoundland. Newfoundland Miner. Development Division. (1973b).

Tilsley, J.E. : Report on Cera-Nalco Fluorspar Exploration program from 1971 to 1974

on Nalco Lot 4 on the Burin Peninsula, Newfoundland. NF. Miner Development

Division. (1974).

Van Alstine, R.E. : Summary Field Report, St. Lawrence Area, Newfoundland.

Newfoundland Miner. Development Division. Internal Report (1939).

Van Alstine, R.E. : The Fluorspar Deposits of St. Lawrence, Newfoundland. Economic

Geology, Volume 39, No. 2, pages109 to132. (1944).

Van Alstine, R.E. : Geology and Mineral Deposits of the St. Lawrence Area, Burin

Peninsula, Newfoundland. Nfld. Geol. Survey Bulletin No. 23, 73 pages. (1948).

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Canada Fluorspar (NL) Inc. – St Lawrence Fluorspar Project

Appendix 1 List of Personnel

Name Address Days Worked

Phonce Cooper St Lawrence, NL 0.5

James Reeves New Glasgow, NS 2.0

Norman Wilson Little St Lawrence, NL 0.5

Frank Pitman Little St Lawrence, NL 0.5