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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
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
Information
Clay Minerals Bulletin , Volume 3 , Issue 15 , October 1956 , pp. 8 - 13
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

Brunton, George 1955. Amer. Min., 40, 124–126.Google Scholar
Jeffries, C. D. 1950. Proc Soil Sci. Soc. Amer., 14, 378–379.CrossRefGoogle Scholar
McCreery, George L. 1949. J. Amer. Ceram. Soc., 32, 141–146.CrossRefGoogle Scholar
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, 124–125.Google Scholar