Glacial topography and deposits in the Vanch River valley (Pamir)

Abstract

In the Vanch valley moraines were formed under conditions of plastic ice flow (by layers) with incidental thrusting is scales, they consist of monolithic and scaly f acres of basal till. The moraines on the valley slopes do not fit the term «Lateral moraine», being a part of a single body of basal till; a new term is suggested which emphasizes the position of the deposit on the valley slope («slope moraine» or «border moraine»). A kind of moraine terraces was formed by meltwater during the glacier downwasting, during phases of temporal stability of the ice surf ace. Similar regularities are typical for the till structure and morphology in other valleys in Pamir where large glaciers existed during the Pleistocene