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Nepheline and Melilite rocks from Shannon Tier

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Twelvetrees, William Harper and Petterd, William Frederick (1898) Nepheline and Melilite rocks from Shannon Tier. Papers & Proceedings of the Royal Society of Tasmania. pp. 60-64.

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Abstract

We received recently from the Mines Department some
specimens of rocks from the Shannon district, where they
had been looked upon as indicating the possible occurence
of tin and gold. Mr. George Allison, of Hunterston, kindly
supplemented these, and outlined for us their geological
occurrence on that estate, and from his descriptions we
are able to indicate broadly the features of the locality.
The Shannon Tier forms there a high plateau of mesozoic
dolerite which rises a thousand feet above the Permo-Carboniferous
country at its base. On the slope below the
Tier are small rounded or conical hills of a dark grey,
slightly bluish, basaltic rock, and at the base of or beneath
the flanks of these is a strange-looking coarse zeolitic rock
called locally " tourmaline-rock." This is as much as can
be stated at present respecting the geology of this rather
remote place. The presence of gold is said to have been
established in the tourmaline-rock, but an assay by the
Government Analyst did not confirm this.

Item Type: Article
Keywords: Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
Journal or Publication Title: Papers & Proceedings of the Royal Society of Tasmania
Page Range: pp. 60-64
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

In 1843 the Horticultural and Botanical Society of Van Diemen's Land was founded and became the Royal Society of Van Diemen's Land for Horticulture, Botany, and the Advancement of Science in 1844. In 1855 its name changed to Royal Society of Tasmania for Horticulture, Botany, and the Advancement of Science. In 1911 the name was shortened to Royal Society of Tasmania.

Date Deposited: 14 Mar 2013 04:29
Last Modified: 18 Nov 2014 04:49
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