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Procedure for clay mineral analyses used in the sedimentary petrology laboratory of the U.S. Geological Survey*

Published online by Cambridge University Press:  14 March 2018

John C. Hathaway*
Affiliation:
U.S. Geological Survey, Beltsville, Md., U.S.A.
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Abstract

The procedure used for fractionation of soils, rocks, and sedimentary materials involves separation of the clay (less than 2 microns) and silt (2 to 62 microns) by centrifugation. Randomly oriented powders and oriented aggregates of these materials are examined using X-ray diffraction as the principal method of analysis.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1956

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Footnotes

*

Publication authorized by the Director, U.S. Geological Survey.

References

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Parker, C. J., Hathaway, J. C. and Blackmon, P. D. 1956. Bull. U.S. geol. Survey, 1021-G.Google Scholar
Schultz, Leonard G. 1955. J. Sediment Petrol, 25, 124125.Google Scholar