Thompson Glacier (far left) compresses proglacial gravel deposits which, since they are in permafrost condition, get thrusted up as angular blocks (tele-photo view from Gypsum Hill, May 1977). |
Thompson Glacier (far left) compresses proglacial gravel deposits which, since they are in permafrost condition, get thrusted up as angular blocks (tele-photo view from Gypsum Hill, May 1977). |