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PETLAB: a National Geoanalytical Database
content accessibility uranium summary
Nick Mortimer & Ben Morrison, GNS Dunedin
PET database history
• NZGS/GNS “P” rock collection catalogue• a.k.a. PET database• collector, location, rock type, sample type etc data
0
20000
40000
60000
1940 1960 1980 2000Year
National Petrology Reference Collectionno
. of s
ampl
es
Ledgers
Punched cards
Basis
Oracle
PETLAB current content
• permanent and accessible archive• rock & mineral analyses, investigator, method, laboratory etc
Geochemical datae.g. SiO2, As, Cr
Petrophysical datae.g. mag suscep
Volumetric datae.g. % qtz, plag
Isotopic datae.g. O, Sr, Pb ratios
Age calculationse.g. U-Pb, TDM
Sample PET data wr = 3877
min = 451
n = 379
n = 269
n = 353
PETLAB non-GNS content
• PETLAB can now take any NZ rock & mineral analyses • no compromise on data quality (e.g. grid references)• negotiate appropriate multi-institutional data access/entry
2202337 261 185 164
64013
0
20000
40000
60000
GNS OU UC VUW R other
no
. P
ET
LA
B s
am
ple
s
Samples by institutionn=67162
PETLAB accessibility
http://gns/intranet
www
Access desktop application
ArcView
Excel
http://www...
coming in 2003
Rest of the World
PETLAB desktop: data in
• Excel template
PETLAB desktop: data out
PETLAB intranet/web
PETLAB example: NZ uranium
Uranium important for a number of reasons:
geophysics: gamma radiometric surveys; heat flow
mineral prospectivity: pathfinder element
environment: radon, groundwater, baselines
geological & geochronological interest
PETLAB uranium
PETLAB records of whole rock U analyses: n = 3102
PETLAB uranium
U <=1 ppm
n = 1061
U >5 ppm
n = 144
U >20 ppm
n = 18
U >1000 ppm
n = 2
• integrate with QMAP database to make geochemical maps
PETLAB summary
permanent, growing database of NZ rocks & rock analyses
integrates scattered geochemical, volumetric, isotopic & petrophysical datasets into a common structure
data input & output as simple as possible
a tool that enhances research & commercial work
PETLAB: future
add data security feature
PETLAB searchable via web in 2003
improve national coverage as project work demands
involve NZ universities, CRIs in PETLAB
use PETLAB in environmental, non-geo applications
useful & visible GNS contribution to the science community
More info: [email protected] [email protected]
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