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Abstract

Within the Proterozoic rocks of the Rocky Cape
Geanticline in north-west Tasmania, three contrasting
sedimentary assemblages are recognised.
The Rocky Cape Group, which has been previously
used very broadly, is redefined to include only one
of these assemblages. The revised definition
includes the orthoquartzite, siltstone and shale
which form a continuous sequence in the Rocky
Cape area. Some new formations are defined.
The Smithton Dolomite, and related rocks, unconformably
overlie the Rocky Cape Group to the west
at Black River. The Burnie Formation is a thick
sequence flanking the Rocky Cape Group to the
east. The Rocky Cape Group and the Burnie
Formation are separated by the Keith Metamorphics,
which is a belt of low grade regional metamorphic
greenschist, amphibolite and pelitic schist.

Item Type:	Article
Authors/Creators:	Gee, RD
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
DOI / ID Number:	https://doi.org/10.26749/rstpp.102.7
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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