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Displaying 1-8 of 8 results for author "Hopkins, R. T."
Geochemical data for 85 heavy-mineral concentrates from selected areas in Greenville and Laurens counties, South Carolina, by semi-quantitative emission spectrography [microform] / by John C. Jackson, Betty M. Adrian, and Roy T. Hopkins.
- Text
- [Reston, VA] : U.S. Dept. of the Interior, Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor, 1992]
- 1992
Analytical results and sample locality map of rock samples from the Hayfork 30ʹ x 1⁰ quadrangle (northwest quarter of the Redding 1⁰ x 2⁰ quadrangle), Humboldt and Trinity counties, California [microform] / by Jerry R. Hassemer, Miles L. Silberman and Roy T. Hopkins.
- Text
- [Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section [distributor], 1992.
- 1992
Analytical results, sample locality map, geochemical maps, and histograms for samples from the Stibnite mill tailings pond, Stibnite, Valley County, Idaho [microform] / by H.D. King, R.T. Hopkins, Jr., and G.C. Curtin.
- Text
- [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Open-File Reports Section, distributor], 1994.
- 1994
Chromium distribution in B-horizon soils, Iron River 1⁰ x 2⁰ quadrangle, Michigan and Wisconsin / Department of the Interior, U.S. Geological Survey ; by H.V. Alminas, J.D. Hoffman, and R.T. Hopkins.
- Cartographic
- Reston, VA : The Survey ; Arlington, VA : For sale by Branch of Distribution, USGS, 1984.
- 1984
- 1 Item
Item details Format Call Number Item Location Cartographic Map Off-site Cobalt distribution in B-horizon soils, Iron River 1⁰ x 2⁰ quadrangle, Michigan and Wisconsin / Department of the Interior, U.S. Geological Survey ; by J.D. Hoffman, H.V. Alminas, and R.T. Hopkins.
- Cartographic
- 1984
- 1 Item
Item details Format Call Number Item Location Cartographic Map Off-site Nickel distribution in B-horizon soils, Iron River 1⁰ x 2⁰ quadrangle, Michigan and Wisconsin / Department of the Interior, U.S. Geological Survey ; by J.D. Hoffman, H.V. Alminas, and R.T. Hopkins.
- Cartographic
- Reston, Va. : The Survey ; Arlington, Va. : For sale by Branch of Distribution, USGS, 1984.
- 1984
- 1 Item
Item details Format Call Number Item Location Cartographic Map Off-site Molybdenum distribution in B-horizon soils, Iron River 1⁰ x 2⁰ quadrangle, Michigan and Wisconsin / Department of the Interior, U.S. Geological Survey ; by R.T. Hopkins, H.V. Alminas, and J.D. Hoffman.
- Cartographic
- 1984
- 1 Item
Item details Format Call Number Item Location Cartographic Map Off-site Interpretive geochemical map of the Iron River 1⁰ x 2⁰ quadrangle, Michigan and Wisconsin / Department of the Interior, U.S. Geological Survey : by H.W. Alminas, J.D. Hoffman, and R.T. Hopkins.
- Cartographic
- Reston, Va. : The Survey ; Arlington, VA : For sale by Branch of Distribution, USGS, 1984.
- 1984
- 1 Item
Item details Format Call Number Item Location Cartographic Map Off-site
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