Earth’s Cryosphere, 2011, Vol. XV, No. 2, p. 44-55

MECHANISM OF FORMATION OF INJECTIVE ICE VEINS AND HYDROLACCOLITHS

S.M. Fotiev

Earth Cryosphere Institute, SB RAS, 625000, Tyumen, P/O box 1230, Russia, kriozem@gmail.com

The mechanism of formation of injective ice veins and hydrolaccoliths, piercing through the ice sheet and deforming it, has been examined. The main source of water forming the ultrafresh ice in the sheets, veins, and cores of hydrolaccoliths has been determined. The results of impact of the injective water flow (piercing into the ice sheet through the yawning fissure) upon the ice sheet and the lower layers of the frozen loam unit have been demonstrated. The results of the intrusion of hydrolaccolith into the ice sheet and the frozen loam unit have been considered.

Key words: Repeatedly injective ice sheet, injective ice vein, deformations of ice and loam layers, hydrolaccolith.