Relief as a basis for ice margin structures reconstruction during Moscow ice sheet retreat

Abstract

Morphology due to the Moscow ise sheet appeared to be complicated and but slightly reworked, marginal zones being more Widespread than it has been previously believed. Marginal landforms fix the active ice margin position during its retreat. Ice-detached masses and deformations due to ice pressure are characteristic of the terminal moraines.

Glacial topography of that time differs both from the Valdai glacial landforms and Dnieper ones. Reconstructions of the Moscow ice sheet structures became possible on the basis of the landforms direction and debris included in the till. The debris petrography of the Moscow till differs both from those of younger and older glacial till which argues the Moscow ise sheet to be an independent one.