Silvaplanasee

Country:

Switzerland

Region:

Upper Engadine

Lake type:

proglacial lake

Category: clastic varves

Elevation:

1791 m asl

Max depth:

78 m

Surface area:

3.1 km2

Catchment area:

129 km2

Archive type:

lacustrine sediments

Author of images:

Christian Ohlendorf

Reference:

Ohlendorf C., Niessen F. and Weissert F. 1997. Glacial varve thickness and 127 years of instrumental climate data: a comparison. Climatic Change 36: 391-411.

Link to reference or DOI:

http://dx.doi.org/10.1023/A:1005376913455

Clastic (minerogenic) varves formed by a discontinuous (highly seasonal) supply of suspended sediments, in this case glacial melt-water streams. The varves consist of laminae composed of coarse particles (sand, silt = summer layer) and fine-grained clay deposited in winter (photography of split core surface, tick marks in millimeter). > max. resolution