'Transition Rocks and Grauwacké' - The Silurian and Cambrian Systems through 150 Years

Michael Bassett

doi:10.18814/epiiugs/1985/v8i4/002

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Episodes 1985; 8(4): 231-235

Published online December 1, 1985

https://doi.org/10.18814/epiiugs/1985/v8i4/002

'Transition Rocks and Grauwacké' - The Silurian and Cambrian Systems through 150 Years

Michael Bassett ^1,2,3

¹Commission Bureau
²National Museum of Wales, Cardiff, U.K.
³Palaeontological Association

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The terms Silurian and Cambrian were first published in a geological sense in 1835. This article reviews the historical background to the concept and early application of these stratigraphical divisions, and their international status after 150 years of development.