Contorted columnar jointed on the eastern flank of Makushin Volcano. Columnar joints form perpendicular to the cooling surfaces of a lava flow. The contorting jointing at this locality was caused by the interaction of lava with glacial ice.
Date: Jul 20th, 1996
Volcano(es): Makushin
Photographer: Roach, A. L.
URL: avo.alaska.edu/image/view/1144
Image courtesy of AVO / University of Alaska Fairbanks, Geophysical Institute.Volcano(es): Makushin
Photographer: Roach, A. L.
URL: avo.alaska.edu/image/view/1144
Please cite the photographer and Alaska Volcano Observatory / University of Alaska Fairbanks, Geophysical Institute when using this image.
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