The 2010 GOMA basement drilling program formed part of a collaborative ARC Linkage Project LP0882000 " Unearthing the marginal terrains of the South Australian Craton: Keystone of Proterozoic Australia " arranged between Primary Industries and...

The GOMA basement drilling program was named after the Gawler-Officer-Musgrave-Amadeus deep seismic reflection survey line, that was completed in 2008 by Geoscience Australia (GA) as part of its Onshore Energy Security Program. Funding for the seismic...

TARGET: Possible Tertiary marine placer deposits of heavy mineral sands (ilmenite, rutile, zircon) on the south-eastern margin of the Eucla Basin in the Nunjikompita - Hiltaba area, 100 km east of Ceduna. EXPLORATION: A consultants' photogeological...

A suite of intrusives (St Peter Suite - new name) along western Eyre Peninsula displays a wide range in composition, texture and relationships. The features are typical for mingling and mixing of felsic and mafic magmas, with U-Pb geochronology...

The major units present are Middle Proterozoic leucogranites, alkali granites and porphyries, overlain by Pleistocene Bridgewater Formation. Leucogranites contain up to 10% phenocrysts of potassium feldspar and bluish quartz, alkali granites contain...

Mintabie Opalfield, one of the most important production centres in Australia, was discovered in the early 1920s but mining only began in earnest in 1976. Precious opal is confined to Mintabie beds, a kaolinitic sandstone of presumed Ordovician Age,...