FRESHWATER CREEK WEIR
GEOLOGY
SOUTH AUSTRALIA
ARROWIE BASIN (ADELAIDE GEOSYNCLINE)
Yudnamutana Subgroup
Glaciomarine diamictite, sandstone, siltstone, conglomerate and ironstone.
A part of the Umberatana Group
NEOPROTEROZOIC
Sturtian
Wilyerpa Formation
Siltstone, green. Lower third is fine grained, includes glacial dropstones; middle unit is medium to coarse sandstone; upper unit is siltstone with minor sandstone. Minor diamictite, sandy and pebbly dolomite.
NEOPROTEROZOIC
Sturtian
REFEreNCES
Australian Government, Geoscience Australia. (n.d.). Backstairs Passage Formation | Australian Stratigraphic Units Database, Geoscience Australia. Last update: September 3, 2019.
Ayres, D. E. (1959). Report on the Waterfall Gully – Brook Gully area. The University of Adelaide.
South Australian Government. (n.d.). SARIG geological map. SARIG.
Victor Tokarev. (2005, February). Neotectonics of the Mount Lofty Ranges (South Australia). Adelaide University - school of Earth Science & Environmental Sciences, Geology & Geophysics.