Plugs and Plug Circles: A Basic Form of Patterned Ground, Cornwallis Island, Arctic Canada : Origin and Implications, Issue 190
Albert Lincoln Washburn
Jan 1997 · Geological Society of America Memoir Book 190 · Geological Society of America
Ebook
87
Pages
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About this ebook
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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