This report presents the results from multi-isotopic apatite and zircon SHRIMP U–Pb geochronology on thirteen samples from the central-western Gawler Craton. Eleven drill core samples are interpreted ultramafic to mafic intrusive rocks, with most...

Radiogenic and stable isotope geochronology and geochemistry are used to determine the age and origins of rocks and minerals. The data provides information about rock relationships, and the timing of geological events.

This report book presents the results of seven geochronology research projects completed during 2009 and 2010 as a new part of the ongoing PACE Initiative geoscientific data gathering activity underwritten by the South Australian Government. It has...

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...

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...

U-Pb zircon geochronology of the Nuyts Volcanics yielded an age of 1627 +/- 2 Ma, supporting a previous dating of 1631 +/- 3 Ma. The major and trace element compositions, as well as the presence of a tectonic fabric, suggest that the Nuyts Volcanics...

Brief description of sampling procedures and sites. All samples analysed by semi-quantitative spectrographic method for precious and rare earth elements. Results in appendix.

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...