BROUGHTON RIVER AT SPALDING

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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

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Pleistocene calcrete

Undifferentiated Pleistocene calcrete.

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Quaternary alluvial/fluvial sediments

Undifferentiated Quaternary alluvial/fluvial sediments.

PLEISTOCENE-HOLOCENE

Quaternary

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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. 

GHOST RANCH
NEW MEXICO, U.S.A
DEAD MAN'S PASS
SOUTH AUSTRALIA
BORAH FAULT SCRAP
IDAHO, U.S.A