Search results
Results from the WOW.Com Content Network
Once blue ice is exposed to warmer air, cracks and fissures appear in surface layers, and break up the large blue crystals of dense, pure ice. Within hours these air filled fissures cloud the surface making the ice appear white. The blue colour will not be seen again until the ice breaks or turns over to expose ice which air could not reach.
The most obvious glacial feature in Illinois is Lake Michigan, the basin of which was carved out by glaciers. [6] As the glaciers receded they left a large number of recessional moraines; among the more visible moraines in the state is the Bloomington Moraine, a Wisconsinan terminal moraine that can be seen in Bureau County.
Blue iceberg observed by tourists along the coast of Alaska, 2010. A blue iceberg is visible after the ice from above the water melts, causing the smooth portion of ice from below the water to overturn. [1] [2] The rare blue ice is formed from the compression of pure snow, which then develops into glacial ice. [3] [4]
Glaciers are large bodies of ice and snow formed in cold climates by processes involving the compaction of fallen snow. While snowy glaciers appear white from a distance, the long path lengths of internal reflected light causes glaciers to appear a deep blue when viewed up close and when shielded from direct ambient light. [citation needed]
Illinois experienced its main periods of glaciation over the past 1.8 million years. These glaciers filled in the Mahomet River valley. [18] The melting glaciers transported large amounts of sediment that filled in the original course of the Mississippi River, which took on its modern course. Other glacial melt water went on to form large lakes ...
A National Park Service report on Alaska's glaciers noted glaciers within Alaska national parks shrank 8% between the 1950s and early 2000s and glacier-covered area across the state decreased by ...
For premium support please call: 800-290-4726 more ways to reach us
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!