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Siderite- and Calcite-bearing Concretionary Nodules in the Lias of Yorkshire

Published online by Cambridge University Press:  01 May 2009

A. Hallam
A. Hallam
Affiliation:
Grant Institute of Geology, University of Edinburgh.
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Abstract

Nodules containing siderite and calcite in the Yorkshire Lias have been studied quantitatively using petrographic, X-ray and chemical methods. Ankerite is recorded from the Lias for the first time. It is shown how the relative abundance of early diagenetic siderite and calcite correlates with sandiness of the sediment and provides an index of environmental change.

Type
Articles
Information
Geological Magazine , Volume 104 , Issue 3 , June 1967 , pp. 222 - 227
Copyright
Copyright © Cambridge University Press 1967

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References

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