Roger J.E. Brown 
Permafrost in Canada [EPUB ebook] 
Its Influence on Northern Development

Stöd

Permafrost is the thermal condition of the earth’s crust when its temperature has been below 32°F continuously for a number of years. Half of Canada’s land surface lies in the permafrost region—either in the continuous zone where the ground is frozen to a depth of hundreds of feet, or in the discontinuous zone where permafrost is thinner, and there are areas of unfrozen ground.The existence of permafrost causes problems for the development of the northern regions of all countries ...

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Språk Engelska ● Formatera EPUB ● Sidor 246 ● ISBN 9781442650992 ● Utgivare University of Toronto Press, Scholarly Publishing Division ● Publicerad 1970 ● Nedladdningsbara 3 gånger ● Valuta EUR ● ID 6568273 ● Kopieringsskydd Adobe DRM
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