University of Wisconsin-Milwaukee
Department of GeosciencesDyanna Czeck
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sigmaclast

Published on June 16, 2016 in Rainy Lake Region, Minnesota and OntarioFull resolution (318 × 211)
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Shear sense indicators to warm the heart of structural geology enthusiasts. The sigma shapes of the deformed pebbles suggest dextral shear sense. This is a typical subhorizontal surface.

Department of GeosciencesDyanna Czeck

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