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January 1, 1976

Distribution and abundance of silver in bedrock, mineralized, vein and altered rock samples, McCarthy Quadrangle, Alaska Distribution and abundance of silver in bedrock, mineralized, vein and altered rock samples, McCarthy Quadrangle, Alaska

No abstract available.

January 1, 1976

Engineering geologic map of the Indian Hills Quadrangle, Jefferson County, Colorado Engineering geologic map of the Indian Hills Quadrangle, Jefferson County, Colorado

No abstract available.

January 1, 1976

Free-air gravity anomaly map of the eastern Chukchi and southern Beaufort seas Free-air gravity anomaly map of the eastern Chukchi and southern Beaufort seas

No abstract available.

January 1, 1976

Geochemical maps showing the distribution and abundance of arsenic and mercury in the Tanacross Quadrangle, Alaska Geochemical maps showing the distribution and abundance of arsenic and mercury in the Tanacross Quadrangle, Alaska

This series of geochemical maps shows the distribution of arsenic and mercury in the minus-80-mesh stream sediment and of arsenic in the ash of streambank sod (mixed organic and inorganic material) collected beneath the water level. The geochemical data are plotted on a base map that shows generalized geology and the drainage pattern. The map symbols show the sample sites and ranges of...

January 1, 1976

Geochemical maps showing the distribution and abundance of beryllium in the Tanacross Quadrangle, Alaska Geochemical maps showing the distribution and abundance of beryllium in the Tanacross Quadrangle, Alaska

This series of geochemical maps shows the distribution of beryllium in three sample media: (A) the oxide residue (the oxalic-acid-leachable fraction) of the stream sediment, (B) the minus-80-mesh stream sediment, and (C) the ash of aquatic bryophytes (mosses). The geochemical data are plotted on a base map that shows generalized geology and the drainage pattern. The map symbols show the...

January 1, 1976

Geochemical maps showing the distribution and abundance of copper in the Tanacross Quadrangle, Alaska Geochemical maps showing the distribution and abundance of copper in the Tanacross Quadrangle, Alaska

This series of geochemical maps shows the distribution of copper in four sample media: (A) the oxide residue (the oxalic-acid-leachable fraction) of the stream sediment, (B) the minus-80-mesh stream sediment, (C) the ash of streambank sod (mixed organic and inorganic material) collected beneath the water level, and (D) the ash of aquatic bryophytes (mosses). The copper data are plotted...