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Elements of the Diagenesis of Sedimentary Rocks

Published online by Cambridge University Press:  28 February 2011

Morrel H. Cohen*
Affiliation:
Exxon Research and Engineering Company, Annandale, New Jersey 08801
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Abstract

Three of the most important elements of the diagenesis of sedimentary rocks are consolidation, porosity reduction, and pressure dissolution or cementation. These are discussed qualitatively with special emphasis on the central role of contact formation in controlling both the driving forces and the kinetics of morphological change. It is shown, in particular, that the equilibrium forces would drive the rocks towards collapse of their porosity earlier in diagenesis were they not prevented by kinetic barriers. At greater depths these barriers are effectively removed by pressure concentration at the small contacts. We propose an explicit, qualitative mechanism leading to the observed morphologies and identify specific problems for quantitative analysis.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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