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 middle Palaeoproterozoic rocks (2000-1800 Ma) on southern Yorke Peninsula are part of the Cleve Subdomain in the eastern Gawler Craton, which is separated from the younger Moonta Subdomain by the Warooka Fault Zone. The rocks contain a group of...

The MAITLAND Special 1:250,000 scale geological map covers the greater part of South Australia's Yorke Peninsula. The rocks in the map area comprise deformed Palaeoproterozoic and early Mesoproterozoic basement of the south-eastern Gawler Craton, and...