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GPH 211 - GEOMORPHOLOGY
MODULE FIVE - FOLLOW THE WATER

Follow the Water Stop 1 of 13 (Site 1b)



Follow the Water Stop 1 of 13 (Site 1b)


Striations and Glacial Polish: As glaciers pour off the mountain highlands, they carry vast quantities of weathered and eroded rock.  When the rock laden ice scrapes against the mountain valleys, scratch marks or "striations" develop parallel to the glacier's path.  Striations are shown in the upper two images.  Sometimes, as a glacier continuously pours down and grinds away at the valley floor, the rock can become "polished" or smooth.  The glacier polish in the lower image is reflecting sunlight at during this High Sierra sunset.