The Yilgarn online GIS displays a wide range of data including geological datasets, topographical data, geophysical images
and seismic traverses, whole rock geochemistry and geochronology samples. It provides an aeromagnetic interpretation (lithology
distribution and structure) and a geological interpretation of the Archaean Yilgarn Craton, one of Australia's key mineral
provinces. The online GIS also focuses on the Leonora-Neale Transect, by providing a detailed solid geology interpretation
of the section. The Yilgarn Craton occurs within Western Australia and covers 10% of the Australian continent. Exposure of
bedrock is extremely poor throughout the region and most known mineral deposits occur within or adjacent to sparse outcrop.
The online GIS provides a view through the poorly magnetised cover to display bedrock distribution. Interpreted rock types
of the region include granite, granitic gneiss, layered intrusions and sills. Interpreted structural elements include lithological
banding, faults, and dyke swarms. Also presented are several surrounding and partially overlying Proterozoic and Phanerozoic
basins and provinces.The Yilgarn Craton is arguably Australia's premier mineral province, attracting more than half the mineral
exploration expenditure, and producing two thirds of the gold and most of the nickel mined in the country. For this reason,
the online GIS provides the ability to display all deposits in the region or the option of displaying gold or nickel deposits
only. Distribution of mineral deposits can be compared to other data layers including geology, and aeromagnetic domains.This
map has been produced as a GeoPDF, which is an extension to the standard PDF file format viewed using Adobe Acrobat Reader.
Layers can be turned off and on to customise the view of the data, similar to using Geographic Information System tools. In
addition, GeoPDF maps are georeferenced to be compatible with other coordinated geographic data. Coordinate locations and
distances can be retrieved automatically.A plug-in to view GeoPDF using Adobe Acrobat Reader is available as a free download
( http://terragotech.com/solutions/map2pdf_reader.php ).
Metadata standard for this record:
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
standard version:
1.1
Metadata record identifier:
a05f7892-eaab-7506-e044-00144fdd4fa6
Metadata record format is ISO19139-2 XML (MI_Metadata)