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Uyak Mélange at the Uganik Thrust, Afognak Island. Composed of black argillite, green meta-hyaloclasite, gray chert and white quartz veins.
PhotoID780

Uyak Mélange at the Uganik Thrust, Afognak Island. Composed of black argillite, green meta-hyaloclasite, gray chert and white quartz veins.
PhotoID780

Photograph: Christie Rowe

Reference: Rowe, C. D., Meneghini, F. and Moore, J. C. (2009) Fluid-rich damage zone of an ancient out-of-sequence-thrust, Kodiak Islands, Alaska. Tectonics 28 TC1006, doi:10.1029/2007TC002126