TY - JOUR

T1 - Inversion relief indicator of paleocryological environments

AU - Astakhov, V. I.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The apparent similarity of glacial and periglacial hummocky landscapes often leads to errors in delimiting former glaciated and perennially frozen areas by means of aerial mapping. To avoid the misinterpretation a set of morphological criteria is suggested, based on inherent difference between relief development by thermokarst sinking in permafrost terrains, on one hand, and by glaciokarst piercing of stagnant glaciers, on the other. Inverted glacial hillocks have an irregular shape, being produced by piling of superimposed filling of multi-floored glaciokarst cavities. Flatter knolls of periglacial terrains, originating from dust-filled surface thaw lakes, are fairly regular in plan and often show a preferred orientarion.

AB - The apparent similarity of glacial and periglacial hummocky landscapes often leads to errors in delimiting former glaciated and perennially frozen areas by means of aerial mapping. To avoid the misinterpretation a set of morphological criteria is suggested, based on inherent difference between relief development by thermokarst sinking in permafrost terrains, on one hand, and by glaciokarst piercing of stagnant glaciers, on the other. Inverted glacial hillocks have an irregular shape, being produced by piling of superimposed filling of multi-floored glaciokarst cavities. Flatter knolls of periglacial terrains, originating from dust-filled surface thaw lakes, are fairly regular in plan and often show a preferred orientarion.

UR - http://www.scopus.com/inward/record.url?scp=0032429711&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032429711

SP - 40

EP - 47

JO - ГЕОМОРФОЛОГИЯ

JF - ГЕОМОРФОЛОГИЯ

SN - 0435-4281

IS - 4

ER -