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Tension cracks produced by ice-dragged boulders in a band of aplite. Yosemite National Park, California. 1914.

Dates

Date Taken
1914

Summary

Yosemite National Park, California. Tension cracks produced by ice-dragged boulders in a band of aplite. The ice moved from right to left. The cracks die out in the adjoining granite, as the latter rock has greater tensile strength than aplite and stretched under the stress of the dragging boulders. Circa 1914.

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Data Owner :
U.S. Geological Survey

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Identifiers

Type Scheme Key
name photoLibrary mfe00273
number photoLibrary 24136
batch photoLibrary batch25
number_in_book photoLibrary 273

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