BROUGHTON RIVER AT SPALDING
GEOLOGY
SOUTH AUSTRALIA
ARROWIE BASIN (ADELAIDE GEOSYNCLINE)
Umberatana Group
Marine and marginal marine siltstone and sandstone; oolitic, sandy and stromatolitic limestone. Mainly interglacial Nepouie and Upalinna Subgroups.
NEOPROTEROZOIC
Sturtian to Marinoan
Tapley Hill Formation
Siltstone, grey to black, dolomitic and pyritic grading upwards to calcareous, thinly laminated, locally cross-bedded; dolomite, grey, flaggy to massive; limestone conglomerate, intraformational; greywacke.
NEOPROTEROZOIC
Sturtian
Pleistocene calcrete
Undifferentiated Pleistocene calcrete.
Quaternary alluvial/fluvial sediments
Undifferentiated Quaternary alluvial/fluvial sediments.
PLEISTOCENE-HOLOCENE
Quaternary
RIVER STEPS
Undifferentiated Quaternary alluvial/fluvial sediments.
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.