IMAGES: Field Trip to a Glacier

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Science  17 Aug 2001:
Vol. 293, Issue 5533, pp. 1227
DOI: 10.1126/science.293.5533.1227e

Glaciers are frozen, slow-moving rivers that perform landscaping on a grand scale, carving canyons, creating lakes, and bulldozing soil. The Glacier Image Database illustrates the structure of these giant tongues of ice, like Alaska's Holgate Glacier, and the geological features they form, such as the trails of rubble called moraines. Created by glacier geologist Tom Lowell to supplement his courses at the University of Cincinnati, the gallery transports you atop, inside, and behind glaciers in locales ranging from Antarctica to Iceland. You can watch as melting patches of underground ice stealthily swallow a patch of forest in Alaska, creating a pothole known as a kettle. Or check out the scars left behind when a glacier skidded across the Ohio landscape. And don't slip past the collection of panoramic movies showing 360-degree views of glaciers and their surroundings.

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