Data

Geochronology data for the Northern Australian Project

Geoscience Australia
Larson, R.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/39855&rft.title=Geochronology data for the Northern Australian Project&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/39855&rft.description=The digital dataset combines data from the Oracle ozchron, sites, and rocks tables and is presented as shapefiles and mapinfo files for the rubidium-strontium, conventional uranium-lead and samarium-neodymium geochronology themes. This dataset package will eventually include the uranium-lead shrimp data, and is intended to be updated on a regular basis until the project is completed.Maintenance and Update Frequency: quarterlyStatement: Data stored in Geoscience Australia's geochronology (OZCHRON), and OZROCKS (SITES and ROCKS) Oracle databases were extracted and converted to GIS layers using in-house ArcInfo scripts. The coverages conform to specifications stated in the Geoscience Australia Data Dictionary for GIS products, version 2002.02 (http://www.ga.gov.au/general/technotes/20011112_53.jsp). A thorough visual check of the data has been done in ArcView by overlaying the geochronology points on attributed geological polygon digital data. Checks were done to see that unitnames from the ROCKS table and the geology theme(s) correspond, and the point falls within or close to the polygon as described. An intra-method check was also done (a sample may have been assessed by more than one geochronology method) or be in the same general vicinity as other samples with the same descriptions from the ROCKS table. ESRI shape files and MapInfo files were then created from the ArcInfo data.&rft.creator=Larson, R. &rft.date=2002&rft.coverage=westlimit=127.5; southlimit=-24.0; eastlimit=138.0; northlimit=-18.0&rft.coverage=westlimit=127.5; southlimit=-24.0; eastlimit=138.0; northlimit=-18.0&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=GIS Dataset&rft_subject=Regional&rft_subject=geochronology&rft_subject=AU-NT&rft_subject=AU-WA&rft_subject=EARTH SCIENCES&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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CC-BY

Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

http://creativecommons.org/licenses/

WWW:LINK-1.0-http--link

Australian Government Security ClassificationSystem

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

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Brief description

The digital dataset combines data from the Oracle ozchron, sites, and rocks tables and is presented as shapefiles and mapinfo files for the rubidium-strontium, conventional uranium-lead and samarium-neodymium geochronology themes. This dataset package will eventually include the uranium-lead shrimp data, and is intended to be updated on a regular basis until the project is completed.

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Maintenance and Update Frequency: quarterly
Statement: Data stored in Geoscience Australia's geochronology (OZCHRON), and OZROCKS (SITES and ROCKS) Oracle databases were extracted and converted to GIS layers using in-house ArcInfo scripts. The coverages conform to specifications stated in the Geoscience Australia Data Dictionary for GIS products, version 2002.02 (http://www.ga.gov.au/general/technotes/20011112_53.jsp). A thorough visual check of the data has been done in ArcView by overlaying the geochronology points on attributed geological polygon digital data. Checks were done to see that unitnames from the ROCKS table and the geology theme(s) correspond, and the point falls within or close to the polygon as described. An intra-method check was also done (a sample may have been assessed by more than one geochronology method) or be in the same general vicinity as other samples with the same descriptions from the ROCKS table. ESRI shape files and MapInfo files were then created from the ArcInfo data.

Issued: 2002

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138,-18 138,-24 127.5,-24 127.5,-18 138,-18

132.75,-21

text: westlimit=127.5; southlimit=-24.0; eastlimit=138.0; northlimit=-18.0

Subjects
AU-NT | AU-WA | Earth Sciences | GIS Dataset | Published_External | Regional | geochronology | geoscientificInformation |

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