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Comprehensive Overview of PETLAB: New Zealand's National Geoanalytical Database

PETLAB is a dynamic national geoanalytical database that serves as a permanent and accessible archive for rock and mineral analyses across New Zealand. It integrates diverse datasets including geochemical, volumetric, isotopic, and petrophysical information, with a focus on uranium analysis. The database facilitates research by enabling easy access to data related to sample types, rock types, and analytical methods. As it evolves, PETLAB aims to enhance data security, improve national coverage, and involve universities and research institutes, promoting its utility in environmental and geological applications.

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Comprehensive Overview of PETLAB: New Zealand's National Geoanalytical Database

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  1. PETLAB: a National Geoanalytical Database • content • accessibility • uranium • summary Nick Mortimer & Ben Morrison, GNS Dunedin

  2. s e l p m a s f o . o n PET database history National Petrology Reference Collection 60000 Oracle Basis 40000 Punched cards 20000 Ledgers 0 1940 1960 1980 2000 Year • NZGS/GNS “P” rock collection catalogue • a.k.a. PET database • collector, location, rock type, sample type etc data

  3. PETLAB current content Geochemical data e.g. SiO2, As, Cr Sample PET data wr = 3877 min = 451 Isotopic data e.g. O, Sr, Pb ratios n = 379 Volumetric data e.g. % qtz, plag n = 269 Age calculations e.g. U-Pb, TDM Petrophysical data e.g. mag suscep n = 353 • permanent and accessible archive • rock & mineral analyses, investigator, method, • laboratory etc

  4. 64013 Samples by institution n=67162 60000 40000 no. PETLAB samples 20000 2202 337 261 185 164 0 GNS OU UC VUW R other 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

  5. PETLAB accessibility Excel www Rest of the World Access desktop application http://gns/intranet http://www... coming in 2003 ArcView

  6. PETLAB desktop: data in • Excel template

  7. PETLAB desktop: data out

  8. PETLAB intranet/web

  9. 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

  10. PETLAB uranium PETLAB records of whole rock U analyses: n = 3102

  11. PETLAB uranium U >5 ppm n = 144 U >20 ppm n = 18 U >1000 ppm n = 2 U <=1 ppm n = 1061 • integrate with QMAP database to make geochemical maps

  12. 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

  13. 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: n.mortimer@gns.cri.nz b.morrison@gns.cri.nz

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