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Clay Partings in Gypsum Deposits in Southwestern Indiana

Published online by Cambridge University Press:  01 January 2024

Jack L. Harrison  and
John B. Droste
Jack L. Harrison
Affiliation:
Indiana Geological Survey, Bloomington, Indiana, USA
John B. Droste
Affiliation:
Geology Department, Indiana University, Bloomington, Indiana, USA
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Abstract

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Gypsum deposits of Mississippian age in southwestern Indiana contain several argillaceous partings. A study of these partings was made to find out what clay minerals are present in such an evaporite association.

The most abundant minerals in the clay partings are dolomite, gypsum, quartz, illite, chlorite and mixed-layer illite-montmorillonite. No kaolinite was found in any of the samples.

Type
Article
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 7 , February 1958 , pp. 195 - 199
Copyright
Copyright © Clay Minerals Society 1958

Footnotes

Published by permission of State Geologist.

References

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Bundy, W. M. (1956) Petrology of gypsum-anhydrite deposits in southwestern Indiana: J. Sed. Petrol., v. 26, pp. 240–252.Google Scholar
McGregor, D. J. (1954) Gypsum and anhydrite deposits in southwestern Indiana: Indiana Geol. Survey Rept. Progress 8, 24 pp.Google Scholar
Pinsak, A. P. (1957) Subsurface stratigraphy of the Salem Limestone and associated formations in Indiana: Indiana Geol. Survey Bull. 11, 62 pp.Google Scholar