Gold and spectrographic analyses of 110 outcrop and 238 B-horizon soil samples from the western Vermilion District, northeastern Minnesota
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Open-File Report↗
Geology topics
R.T. Hopkins
Publications and source records attributed to R.T. Hopkins.
Analytical results and sample locality map of stream-sediment and heavy-mineral-concentrate samples from the Snowbank Roadless Study Area, Valley and Gem Counties, Idaho
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Open-File Report↗
Analytical results and sample locality map of stream-sediment and heavy-mineral-concentrate samples from the Payette Crest, Secesh, and South Fork Roadless Study Areas, Valley and Idaho counties, Idaho
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Open-File Report↗
Analytical results and sample locality map of stream-sediment samples from the Reno 1° x 2° quadrangle, California and Nevada
No abstract available.
California, Nevada↗
Analyses and descriptions of geochemical samples, Buzzard Knob Roadless Area, Rabun and Towns counties, Georgia
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Open-File Report↗
Analytical results and sample locality map of rock samples from the Devil's Garden Lava Bed (OR-1-2), Squaw Ridge Lava Bed (OR-1-3), and Four Craters Lava Bed (OR-1-22) Wilderness Study Areas, Lake County, Oregon
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Open-File Report↗
Reconnaissance geology and exploration geochemistry of King Cove, Alaska Peninsula
No abstract available.
Open-File Report↗
Gold, silver, tellurium, and spectrographic analyses for rock and soil samples from the U.S. Virgin Islands
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Open-File Report↗
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the Steep Creek Wilderness Study Area (UT-040-061), Garfield County, Utah
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Open-File Report↗
Analytical results and sample locality map of stream-sediment and heavy-mineral-concentrate samples from the Clan Alpine Mountains Wilderness Study Area (NV-030-102), Churchill County, Nevada
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Open-File Report↗
Analytical results and sample locality map of rock samples from the Clan Alpine Wilderness Study Area, Churchill County, Nevada
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Open-File Report↗
Analyses and descriptions of geochemical samples, Anna Ruby Roadless Area, White County, Georgia
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Open-File Report↗
Analyses and descriptions of geochemical samples, Worley Ridge Roadless Area, Rabon County, Georgia
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Open-File Report↗