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Royal Belgian Institute for Natural Sciences (36)

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Resource type

book (28)

map (22)


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English (50)


Year
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1953 (1)

1950 (1)

1939 (1)

1931 (1)

1925 (2)

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Book
Observations on the rich silver ores of Aspen Colorado
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Year: 1925 Publisher: Washington U. S. Geological Survey

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Map
Topographic map of the Central City Quadrangle, Colorado, showing location of mines outside the areas of the large-scale maps, position and· classification of veins, and positions of larger tunnels
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Year: 1917 Publisher: Washington (D.C.) U.S. Geological Survey

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Book
Contributions to a knowledge of the lead and zinc deposits of the Mississippi valley region
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Year: 1939 Publisher: [New York] The Society

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Map
Topographic map of the Central City District, Colorado, showing location and· classification of metalliferous veins and location of principal mines
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Year: 1917 Publisher: Washington (D.C.) U.S. Geological Survey

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Map
Rockland folio, Maine : economic geology
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Year: 1908 Publisher: Washington, D.C. U.S Geological Survey

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Book
Rockland folio, Maine : description of the Rockland quadrangle
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Year: 1908 Publisher: Washington U.S .Geological Survey

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Map
Geologic map of the Idaho Springs Quadrangle, Colorado
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Year: 1917 Publisher: Washington (D.C.) U.S. Geological Survey

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Rockland folio, Maine : structure sections
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Year: 1908 Publisher: Washington, D.C. U.S Geological Survey

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Map
Rockland folio, Maine : surficial geology
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Year: 1908 Publisher: Washington, D.C. U.S Geological Survey

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Book
Origin of certain rich silver ores near Chloride and Kingman, Arizona
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Year: 1925 Publisher: Washington U. S. Geological Survey

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