Results 211 to 220 of about 7,617 (266)

Ice wedges in south-eastern Finland

Geologiska Föreningen i Stockholm Förhandlingar, 1968
Abstract Ice wedge casts, the biggest 1.5 m deep, were found in stratified sand and gravel in sections in the Salpausselka I end-moraine in eastern Finland. Their distribution suggests that they were formed in the end of the Late Weichselian Younger Dryas period and possibly in early Flandrian time, which agrees with the dating of the youngest ice ...
J. J. Donner, V. Lappalainen, R. G. West
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RELICT ICE-WEDGE POLYGONS

Geografisk Tidsskrift-Danish Journal of Geography, 1976
Svensson, Harald, 1976; Relict ice-wedge polygons revealed on aerial photographs from Kaltenkirchen, northern Germany. Geografisk Tidsskrift 75: 8–12. Kobenhavn, juni 1, 1976. On aerial photographs polygonal patterns are detected in cultivated fields due to vegetational contrasts.
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Life at the Wedge: the Activity and Diversity of Arctic Ice Wedge Microbial Communities

Astrobiology, 2012
The discovery of polygonal terrain on Mars underlain by ice heightens interest in the possibility that this water-bearing habitat may be, or may have been, a suitable habitat for extant life. The possibility is supported by the recurring detection of terrestrial microorganisms in subsurface ice environments, such as ice wedges found beneath tundra ...
Wilhelm, Roland C., Radtke, Kristin J., Mykytczuk, Nadia C. S., Greer, Charles W., Whyte, Lyle G.   +4 more
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ICE‐WEDGE CRACKS, WESTERN ARCTIC COAST

Canadian Geographies / Géographies canadiennes, 1989
SummaryIce‐wedge ice is one of the most abundant types of nearly pure ground ice to be found along the western Arctic coast and, indeed, in many other permafrost areas of the world. Ice wedges grow because thermal contraction cracks open in winter and become infilled with water in spring to form incremental ice veinlets.
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Fossil ice‐wedge at Poltalloch

Scottish Geographical Magazine, 1961
(1961). Fossil ice‐wedge at Poltalloch. Scottish Geographical Magazine: Vol. 77, No. 2, pp. 88-88.
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Involutions and Ice-Wedges in Devon

Nature, 1961
RELICT periglacial phenomena have been recorded from south-west England for more than two hundred years. Reference has been made to head, clitter, rubble drift, loessic deposits and other manifestations of mechanical rock-weathering and ablation of debris under sub-arctic conditions1, to geomorphological features which resemble actively developing ...
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Ice wedges of the Dalton Highway, Alaska

Quarterly Journal of Engineering Geology and Hydrogeology, 2001
North America’s largest oilfield was discovered in 1968 at Prudhoe Bay; it contained over ten billion barrels of recoverable oil about 3000 m beneath the Arctic Coastal Plain. Its development changed Alaska’s economy for ever, and included building the oil pipeline from Prudhoe Bay to Valdez.
TONY WALTHAM, PETER FOOKES
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Ice-Wedge Polygons of Northern Alaska

1982
Ice-wedge polygons, commonly 5–30 m in diameter, are strikingly developed over the Arctic Coastal Plain of northern Alaska. Troughs over ice wedges that outline the polygons are a few centimeters to several meters wide. Centers of polygons are flat, high centered, or low centered in a continuum in which relief generally is several decimeters to a meter.
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Ice-Wedge Cracks, Garry Island, Northwest Territories

Canadian Journal of Earth Sciences, 1974
Observations made on winter ice-wedge cracks at Garry Island, N.W.T., for the 1967–73 period show that cracking tends to occur between mid-January and mid-March. On the average, nearly 40% of the ice wedges crack in any given year. The crack frequency varies inversely with snow depth.
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Ice-Wedge

2021
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