The base of the Ediacaran Period is defined by a Global Stratotype Section and Point (GSSP) marked by the Golden Spike in the Trezona Formation in Brachina Gorge. The lower glacial formation attributed to Snowball Earth is overlaid by the Nuccaleena Formation – a carbonate formed in shallow warm waters – displaying a distinct shift in climate that gave rise to Ediacaran biota, preserved in the fossil record of the Flinders Ranges.
A view to the east from the top of Mt Chambers, Flinders Ranges. The white salt of Lake From can be seen on the horizon.
Spectacular spring fed Moro Gorge at Nantawarrina Indigenous Protected Area in the Gammon Ranges.
These brittle 5-10mm calcium carbonate deposits in Warraweena Conservation Park are found in an overhang in a quartzite gorge.
Quartzite outcrop of the Black Range, Warraweena Conservation Park
A view of the Copley Quartzite formation that contains Aroona Dam, and in the distance the Brachina siltstone formation of the Bayley Range.
The distinctive peaks of Arkaroola as seen from the north of the Gammon Ranges.
North of the quartzite pound are precambrian formations of shale and limestone of the Tapley Hill and Aberoona formations.