Plugs and Plug Circles: A Basic Form of Patterned Ground, Cornwallis Island, Arctic Canada : Origin and Implications (MEMOIR (GEOLOGICAL SOCIETY OF AMERICA)) - Hardcover

Washburn, Albert Lincoln

 
9780813711904: Plugs and Plug Circles: A Basic Form of Patterned Ground, Cornwallis Island, Arctic Canada : Origin and Implications (MEMOIR (GEOLOGICAL SOCIETY OF AMERICA))

Synopsis

Patterned ground, encompassing circles, nets, polygons, and stripes, indicate soil, temperature, hydrologic, and other environmental conditions, past and present. Plug circles and plugs, a variety of patterned ground, occur in both nonsorted and sorted forms in permafrost environments. Study in the Canadian High Arctic, and a review of hypotheses of origin support the conclusion that plug circles and plugs are diapiric forms resulting from frost heaving, and that surfaceward seepage accounts for many occurences. This title focuses on many of the aspects of patterned ground, plugs and plug circles detailing circulatory soil processes and examining origin.

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