Glacial Deposits

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Glacial Deposits


geological deposits whose formation is genetically related to modern or ancient mountain glaciers or continental ice caps. Glacial deposits are divided into glacial deposits proper (or moraine) and aqueoglacial deposits.

Glacial deposits proper arise when fragmentai material carried within the glacier is directly deposited beneath the glacier. These deposits are composed of unsorted loose fragmentai rock, more often boulder clay, loams, and sandy loams and, more rarely, boulder sands and coarse gravel containing boulders, rock debris, and pebbles.

Aqueoglacial deposits are formed inside and along the periphery of glaciers from sorted morainic material that has been redeposited by meltwaters. Among these deposits a distinction is made between glaciofluvial deposits, which are the deposits of streams of meltwater (obliquely bedded sands, gravel, and shingle), and glaciolacustrine deposits of englacial and periglacial lakes (predominantly varved clays).

All types of glacial deposits form complicated combinations (glacial complexes or glacial formations). They are particularly characteristic for the youngest Anthropogene system, during whose formation extensive continental glaciers covered enormous areas in the present-day temperate zones. Among the deposits of the Upper Paleozoic, the Ordovician, and the Pre-cambrian, ancient glacial deposits are also known; they are usually greatly consolidated, cemented together, and sometimes also metamorphosed (tillites).


Shantser, E. V. Ocherki ucheniia o geneticheskikh tipakh kontinental’-nykh osadochnykh obrazovanii. Moscow, 1966.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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The April Trend is entirely covered by glacial deposits and has not previously been tested by diamond drilling.
Glacial deposits are either Late Wisconsinan (13,000 to 24,000 years ago) or Illinoian (130,000 to 191,000 years ago) in age.
Bedrock is up to 300 ft below glacial deposits. The dominant unit mapped is a drumlinized diamicton correlated to the Two Rivers glacial advance.
Some white lines which overlap the rocks point to calcite rocks, which are relatively common calcium carbonate, towards the west of Al Ghubra village, 5 kilometers from the oldest residues of some of the glacial deposits in Oman.
Radon typically is associated with fractured igneous and meta-igneous rocks, clay-rich glacial deposits, marine shale, carbonate soils, and uranium-bearing river and marine sediments (Gundersen et al., 1992).
It consists of Diamictite glacial deposits (TBI), wash out plain deposits (TB2) and followed by subaqueous Diamictite facies (TB3).
To the south, the River Wiske once flowed into the Tees, but was diverted by glacial deposits and now flows south into the Swale.
Later, as we glide through seemingly bottomless waters, the brilliance of the sky matches the blueness of the pools on our decks, and narrow inlets shine green with glacial deposits.
During construction, quality control was key and Mr Ericsson travelled to watch the excavation of the glacial deposits near Tamworth which would create the final exposed concrete to ensure consistency and colour.
Scientists have suggested that over 6,000 years ago, a sharp sea-level rise, attributed to a changing climate and a rapid melting of ice, added weight to the submarine glacial deposits at the edge of the Norwegian continental shelf, destabilising them and causing a 300km long landslide.