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The Composition of Marls and Limestones in the Great Oolite Series of Oxfordshire

Published online by Cambridge University Press:  01 May 2009

W. Sugden  and
W. S. McKerrow
W. Sugden
Affiliation:
Department of Geology, University Museum, Oxford.
W. S. McKerrow
Affiliation:
Department of Geology, University Museum, Oxford.
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Abstract

Analyses of eighteen samples from Jurassic marls and limestones show a large, continuous range in carbonate-clay composition. The significance of the carbonate/clay ratio is discussed, and it is show that rapid lateral and vertical transitions from marl to limestone may either reflect major changes in composition or represent only small shifts (across a critical value: 4) in the carbonate/clay ratio. The term “marl” is defined.

Type
Articles
Information
Geological Magazine , Volume 99 , Issue 4 , August 1962 , pp. 363 - 368
Copyright
Copyright © Cambridge University Press 1962

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References

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