Clay Mineralogy of a Gumbotil, HR-106, 1964

(1964) Clay Mineralogy of a Gumbotil, HR-106, 1964. Transportation, Department of


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Investigation of the clay minerals in a gumbotil associated with the Mahaska soil series in Keokuk County, Iowa, indicates that the principal clay mineral is a dioctahedral calcium montmorillonite. Other clay minerals present in this gumbotil are kaolinite and mica, although they are in much smaller percentages. The investigation also pointed out difficulties involved in analyzing this type of soil by standard X-ray procedures and the complications introduced in the analysis of soil samples with high iron content utilizing standard accepted diffraction techniques.

Item Type: Departmental Report
Keywords: Clay minerals, Materials tests, Soil series, Soil tests, X ray analysis, Gumbotil
Subjects: Transportation
Transportation > Materials
Transportation > Materials > Gravel and aggregates
Transportation > Research
ID Code: 16995
Deposited By: Iowa DOT Library
Deposited On: 02 Jun 2014 11:55
Last Modified: 18 Sep 2014 15:32