Glaciolacustrine Deposits


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Glaciolacustrine Deposits

 

the bottom sediments of lake basins deposited by glacial meltwater flowing along the margin of a glacier or among fields of dead ice. The deposits consist of sorted, predominantly stratified, formations of varying composition, from coarse sands (riparian facies) to clays. Varved clays are most characteristic of such deposits.

References in periodicals archive ?
Layer 1 (1-3 m thick) corresponds to Upper Quaternary deposits: marsh (bog), alluvial and glaciolacustrine deposits, basal and marginal till (Report .
Generally, the concentration of eU was lower in glaciolacustrine deposits and carbonate-rich till; however, patches with higher eU concentration occurred within these deposits as well.
The Vasavere buried valley is filled with glaciofluvial and glaciolacustrine deposits, mainly with sand and silt, partly with the mixture of gravel (Figs.
Numerous soil bodies with parent materials attributed to Wisconsinan glaciolacustrine deposits are mapped in tributary valleys to the Licking River between Newark and Black Hand Gorge, but again the age of the sediments is not justified.
The bedrock surface in Estonia is strongly dissected by deep ancient valleys (Tavast & Raukas 1982), which, according to their geological structure, can be subdivided into valleys filled mainly with glaciofluvial deposits of the last glaciation, valleys filled mainly with glaciolacustrine deposits of the last glaciation, valleys with one till bed with underlying or covering glaciofluvial and glaciolacustrine deposits, valleys of a complicated structure with more than one till bed and accompanying glaciofluvial and glaciolacustrine deposits.
In addition to till, there are four other major types of glacial deposits: a) sediment flow deposits and ice-slope colluvium, 2) outwash or glacial fluvial deposits, 3) glaciolacustrine deposits, and 4) glacioeolian deposits.
Luvisols (10 sampling plots), Albeluvisols (7 sampling plots), Cambisols (6 sampling plots) and Stagnosols (5 sampling plots) occur most frequently in the areas of glacigenic deposits, while in glaciolacustrine deposits Planosols (6 sampling plots), Stagnosols (5 sampling plots), Gleysols (5 sampling plots) and Luvisols (4 sampling plots) are mainly distributed (Table 1).
The fragments of Dictyonema shale crushed by continental glacier are distributed in the till of the klint zone, as well as in glaciolacustrine deposits and talus of the klint.
On the seismic profiles from the central, deeper part of the lake, an unstable reflector appears on top of the signal interpreted as glaciolacustrine deposits (Fig.
The incisions in Tallinn are mainly filled with Upper Weichselian glacial, glaciofluvial, and glaciolacustrine deposits and Holocene marine deposits (Tavast & Raukas 1982).