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Abstract

Permian mudstones and sandstones crop out
over much of the Richmond area; Triassic sandstones,
shales, and coal measures occur east of
Richmond and in the Sorell area. Faulting of
Permian and Triassic strata and injection of dolerite, possibly as sheets, broke up the area.
Lakes formed in fault-angle troughs produced
by Tertiary faulting; deposits in them occur
between Richmond and Sorell. Faults of Jurassic
and Tertiary age trending north and west of north
control topography and stream direction. The
Richmond Graben is Jurassic, pre-dolerite in age:
Tertiary movement occurred along earlier lines of
weakness.

Item Type:	Article
Authors/Creators:	Gatehouse, CG
Keywords:	Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title:	Papers and Proceedings of the Royal Society of Tasmania
ISSN:	0080-4703
Collections:	Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	Copyright Royal Society of Tasmania
Item Statistics:	View statistics for this item

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