6ed612cf-d9f4-4af7-b952-d64ed856b1b1 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T21:28:36 creation ISO 19115 2016 Gawler Craton iron oxide Cu-Au (-U) potential map 6ed612cf-d9f4-4af7-b952-d64ed856b1b1 The map of iron oxide copper-gold (IOCG) potential of the Gawler Craton, South Australia, shows the spatial distribution of key 'essential ingredients' of IOCG ore-forming systems. These 'ingredients' include: (a) rock units of the Gawler Range-Hiltaba Volcano-Plutonic Association, subdivided by supersuite; (b) faults/shear zones subdivided by interpreted age of youngest significant movement; (c) copper geochemistry (>200ppm), from drill holes intersecting crystalline basement (Mesoproterozoic and older); (d) hydrothermal alteration assemblages and zones, based on drill hole logging, potential-field interpretation, and inversion modelling of potential-field data; and (e) host sequence units considered important in localising IOCG alteration and mineralisation. Also shown are Nd isotopic data and the mineral isotopic ages of late Palaeoproterozoic to early Mesoproterozoic magmatism and hydrothermal minerals. Areas with the greatest number of 'essential ingredients' are considered to have the maximum potential for IOCG mineralisation. IOCG potential of the Gawler Craton is shown as domains with ranks from 1 to 4, with 1 being the highest rank. Notes detailing the sources of data and methods used in constructing the map are provided in a separate file available on the Geoscience Australia website. {"type": "Polygon", "coordinates": [[[133.0, -35.0], [138.0, -35.0], [138.0, -28.0], [133.0, -28.0], [133.0, -35.0]]]} 133.0 138.0 -35.0 -28.0 500K scale AU-SA Geological Map Geology Published_External economic geology geochemistry geochronology mapping metallogenesis mineral exploration Link to Gawler Mineral Promotion Project documentDigital Link to Gawler Mineral Promotion Project HTML Map: High resolution (pdf) documentDigital Map: High resolution (pdf) PDF Map: Low resolution (pdf) documentDigital Map: Low resolution (pdf) PDF Introductory notes (pdf) documentDigital Introductory notes (pdf) PDF Unnamed resource documentDigital HTML