Distribution and genesis of authigenic silicate minerals in tuffs of Pleistocene Lake Tecopa, Inyo County, California
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Professional Paper↗
Geology topics
Richard A. Sheppard
Publications and source records attributed to Richard A. Sheppard.
Measured sections of the Barstow Formation, Mud Hills, San Bernardino County, California
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Open-File Report↗
Potash feldspar of possible economic value in the Barstow Formation, San Bernardino County, California
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Circular↗
Geology of the Tygarts Valley quadrangle, Kentucky
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Geologic Quadrangle↗
Geology of the Portsmouth quadrangle, Kentucky-Ohio, and parts of the Wheelersburg and New Boston quadrangles, Kentucky
No abstract available.
Kentucky, Ohio↗
Geology of the Argillite quadrangle, Kentucky
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Geologic Quadrangle↗