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Abstract

Associated with the schists of Mount Read and district
are some obscure igneous rocks, siliceous in nature, compact
in grain, often slightly schistose, which are what the
field geologist calls felsites or felstones. These terms,
however convenient, need explanation, for in different
countries they carry different meanings. In Germany the
word felsite (or micro-felsite) is applied to the compact
homogeneous-looking groundmass of quartz porphyries.

Item Type:	Article
Authors/Creators:	Twelvetrees, William Harper and Petterd, William Frederick
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
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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