FRESHWATER CREEK SPRING
SPALDING - SOUTH AUSTRALIA
AUG 28TH 2020
GEOLOGY
Located in the Adelaide Geosyncline (Adelaide Superbasin) and the Nackara Arc of the Adelaide Rift Complex, the sediments range fro Nepprotozoic to Cambrain and have been folded and metamorphosed by the Delamerian Orogen from 520 to 490 million years ago.
Wilyerpa Formation
Yundamutana Subgroup, Glaciomarine diamictite, sandstone, siltstone, conglomerate and ironstone.
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
Honeycomb Weathering
The
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.
