Strata Thickness

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“Generalized columnar section, northern Black Hills.” -Walcott, 1901

Keywords

geological layers, rock layers, stratified layers, strata thickness, Black Hills, columnar section, geological time line, geology periods

Galleries

Structural Geology

Source

Walcott, Charles D. Annual Reports of the Department of the Interior (Washington, DC: Government Printing Office, 1901)

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