An emplacement age of 1497 ± 38 Ma for the felsic Spilsby Suite exposed on islands in southern Spencer Gulf is anomalously young with respect to magmatism elsewhere within the Gawler Craton, and is approximately 75 to 90 million years younger than the...

The Gawler Craton preserves a tectonic history spanning the interval c. 3200 – 1400 Ma, and its evolution is dominated by Neoarchean to Mesoproterozoic tectonic events. Prior to the Jurassic-Cretaceous breakup of Australia and Antarctica, the Gawler...

Geochronology enables us to determine the age of rocks and minerals. The variety of isotopic geochronological techniques give complementary information on, for example, the timing of igneous or metamorphic crystallisation, as is often the case for the...

The LINCOLN 1:250,000 scale regional geological map area covers southern Eyre Peninsula and includes numerous islands lying off its eastern, southern and western coasts. The region encompasses a complex geological history and contains a variety of...

This bulletin contains geochronological data and interpretations from the Gawler Craton of South Australia that have been completed by Mark Fanning of The Australian National University, by Geological Survey of South Australia personnel, and by...