Analytical results and sample locality maps of heavy-mineral-concentrate and rock samples from the West Potrillo/Mt. Riley Wilderness Study Area (030-052), Luna and Dona Ana Counties, New Mexico
No abstract available.
Dona Ana County, Luna County↗
Geology topics
D. F. Siems
Publications and source records attributed to D. F. Siems.
Geochemical maps showing distribution and abundance of lead in two fractions of stream-sediment concentrates, Silver City 1 degree by 2 degrees Quadrangle, New Mexico and Arizona
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Miscellaneous Field Studies Map↗
Geochemical maps showing distribution and abundance of zinc in two fractions of stream-sediment concentrates, Silver City 1 degree by 2 degrees Quadrangle, New Mexico and Arizona
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New Mexico, Arizona↗
Geologic and geochemical maps of the Linville Gorge Wilderness and proposed extensions, Burke and McDowell counties, North Carolina
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Miscellaneous Field Studies Map↗
Analytical results and sample locality map for nonmagnetic heavy-mineral concentrates from stream sediments from the South Reveille Wilderness Study Area (NV-050-112), Nye County, Nevada
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Open-File Report↗
Trace elements in disseminated sulfides, magnetite, and massive sulfides, West Shasta district, California.
Samples of massive sulfide layers show an enrichment in many minor and trace elements in the central part of layers. Comparison of trace element contents of massive sulfides, magnetite, and disseminated sulfides suggests differences in origin. Trace element contents of samples from various mines suggest regional variations.
Economic Geology↗
Distribution of zinc heavy-mineral-concentrate from the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina
No abstract available.
North Carolina, South Carolina↗
Distribution of gold in heavy-mineral-concentrate samples from the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina
No abstract available.
North Carolina, South Carolina↗
Distribution of antimony, arsenic, bismuth, and cadmium in heavy-mineral-concentrate samples from the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina
No abstract available.
North Carolina, South Carolina↗