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Diagenetic concretions from the Ribband Group sediments of County Wexford, Ireland

Published online by Cambridge University Press:  01 May 2009

P. M. Shannon
P. M. Shannon
Affiliation:
Geology Department, The University, Newcastle upon Tyne, NE1 7RU
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Summary

An occurrence of small diagenetic siderite concretions is described. They occur towards the top of a postulated shallowing sequence of cleaved Lower Palaeozoic siltstones and shales. The concretions occur as lenses and aggregates associated with horizontal grazing trails, and also as diffuse bands apparently unrelated to the latter. The concretions are compared with other similar structures described elsewhere, and an origin by diagenetic growth beneath the sediment–water interface in a marine environment is postulated.

Type
Articles
Information
Geological Magazine , Volume 114 , Issue 2 , March 1977 , pp. 127 - 132
Copyright
Copyright © Cambridge University Press 1977

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