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Yellowstone National Park: The Oberlin Connection, Allen Memorial Art Museum, Oberlin College Library Apr 1987

Yellowstone National Park: The Oberlin Connection, Allen Memorial Art Museum, Oberlin College Library

Exhibition Catalogs

Exhibition Dates: April 15 to June 15, 1987
An exhibition examining the connection between Oberlin and the early exploration of Yellowstone National Park, including Oberlinians General Henry D. Washburn and geologist Ferdinand V. Hayden.


Petrographic Criteria For The Recognition Of 'Magadi-Type' Cherts, Kathryn A. Schubel Jan 1987

Petrographic Criteria For The Recognition Of 'Magadi-Type' Cherts, Kathryn A. Schubel

Honors Papers

The Magadi cherts, inorganic lacustrine deposits from the Lake Magadi area, Kenya, are widely used as a modern analog to explain the origin of ancient inorganic cherts. Formed in a highly alkaline lake, as the result of a transformation from the sodium silicates minerals, magadiite and/or kenyaite, to quartz, the Magadi cherts possess a distinctive set of textural characteristics that allow them to be distinguished from cherts of different origin with only a limited number of samples. Textural characteristics that are diagnostic of the Magadi cherts and that can be used as a test for the occurrence of ancient 'Magadi-type' …