6f9c3abc-0aae-4090-8be0-9f60ac2c8f57 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T13:57:09 creation ISO 19115 2016 Yilgarn Craton aeromagnetic interpretation map 1:1 500 000 scale 6f9c3abc-0aae-4090-8be0-9f60ac2c8f57 This product covers interpretation of the full geophysical extent of the Yilgarn Craton, and also most of the Albany-Fraser province to the south-southeast. The interpretation covers the Meekatharra (SG50), Wiluna (SG51), Perth (SH50), Kalgoorlie (SH51), Albany (SHI50), and Esperance (SI51) 1:1M sheets. The data set predominantly addresses the Archaean rocks of the Yilgarn Craton but includes interpretation of the adjacent, abutting or onlapping Proterozoic rocks such as the Northampton Block, Yerida, Bryah, Padbury and Earaheedy groups, Albany-Fraser Province, Stirling and Mt Barren Beds, and Phanerozoic Perth and Officer Basins. The aeromagnetic interpretation provides most information on the distribution of the Archaean rocks as these rocks are generally moderately to highly magnetised with reasonable variation of magnetisation. Adjacent Perth Basin sediments are poorly magnetised and spatially associated magnetic anomalies are attributed to underlying Proterozoic rocks. The Archaean rocks are subdivided into undivided gneiss-migmatite-granite (Agmg), banded gneiss (Agn), sinuous gneiss (Anu), greenstone (Aa), and granite plutons (Ag). Where important relative differences in magnetisation are mapped, the geophysical map units include the suffixes _h (high), _m (medium), _l (low) and _r (remanent) for the level of magnetisation. Dykes, faults, and unassigned small intrusives are also mapped. Large Archaean domains equivalent to geologically defined Provinces are also defined including Narryer, Murchison, Toodyay- Lake Grace, Southwest, Southern Cross, Yeelirrie, Lake Johnston and Eastern Goldfields domains. {"type": "Polygon", "coordinates": [[[114.0, -36.0], [126.0, -36.0], [126.0, -24.0], [114.0, -24.0], [114.0, -36.0]]]} 114.0 126.0 -36.0 -24.0 AU-WA Geophysical Map Geophysics Published_External aeromagnetic interp. geology geophysics mapping Related Product documentDigital Related product: Yilgarn Craton 1:1 million aeromagnetic interpretation dataset HTML Download the file (pdf) documentDigital Download the file (pdf) PDF Unnamed resource documentDigital HTML