Geology topics
Roger P. Ashley
Publications and source records attributed to Roger P. Ashley.
Primary and secondary sulfates at Goldfield, Nevada
High S-34 values for primary alunites (formed during hydrothermal phase) replacing plagioclase and groundmass of altered volcanic rocks, secondary alunite veins (formed during supergene alteration) with S-34 values near zero permil
Nevada↗
Preliminary geologic map of the Goldfield mining district, Esmeralda and Nye counties, Nevada
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Open-File Report↗
Geochemical data for the Sixteen-to-one mine, near Silver Peak, Esmeralda County, Nevada
No abstract available.
Nevada↗
Age of ore deposition at Goldfield, Nevada, from potassium-argon dating of alunite
No abstract available.
Economic Geology↗
Evaluation of color and color infrared photography from the Goldfield mining district, Esmeralda and Nye Counties, Nevada
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Open-File Report↗