Geology√

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Geology√

1974 Archival description results for Geology√

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Castroides

Castroides. Skull of the giant Pleistocene beaver (top) compared with the skull of the living form. The history of the beaver is typical of the history of many mammals in that the living forms are smaller than their leistocene predecessors. In general, the larger members of any fauna disappear in times of stress. Stokes, 1960, p. 444.

Cascade Mountains, British Columbia

Cascade Mountains, British Columbia

View of intrusive igneous rocks sculpted into sharp-crested aretes and cols by alpines glaciers. Note 'U' shaped valleys eroded by valley glaciers at right in frame.

Bio/historical note: Frederic Harrison Edmunds was born in Hawarden, North Wales in 1898. He received his B.Sc. (1922) and MSc. (1923) from the University of Liverpool. In 1925 he came to Canada and joined the Department of Soils at the University of Saskatchewan. Professor Edmunds was named chairman of the Department of Geological Sciences in 1961, a position he held until his death in February, 1965.

Calcite, var.

Calcite, var. Iceland Spar. Chihuahua, Mexico. A clear cleavage rhombohedron showing double refraction.

Results 1711 to 1725 of 1974

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