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Abstract

The Norwich coal seams near Longford, opened out
by Mr. Mason and others, have only been discovered
recently, although the existence of the Mesozoic Coal Measure
Sandstones in the immediate neighbourhood-notably at
Hadspen-had long been known.
The exact extent of this basin of coal has not yet been
determined.
Rocks of Mesozoic and Upper Palmozoic age are to be
found everywhere bordering this ancient Tertiary Lake
Basin, and even near its centre.
It is evident that the coal measures have been
subject to violent pressure laterally since their deposition.

Item Type:	Article
Authors/Creators:	Johnston, Robert Mackenzie
Keywords:	Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
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:	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.
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