Oeschinensee

Country:

Switzerland

Region:

Bernese Alps

Lake type:

rockfall-dammed, Alpine proglacial

Category: clastic varves

Elevation:

1580 m asl

Max depth:

56 m

Surface area:

1.18 km2

Catchment area:

22 km2

Archive type:

lacustrine sediments

Author of images:

Benjamin Amann

Reference:

Amann B, Mauchle F, Grosjean M (2014) Quantitative high-resolution warm season rainfall recorded in varved sediments of Lake Oeschinen, northern Swiss Alps: calibration and validation AD 1901-2008. Journal of Paleolimnology 51 (3), 375-391

Link to reference or DOI:

http://dx.doi.org/10.1007/s10933-013-9761-3


Site images

Oeschinensee in the Bernese Alps, Switzerland > max. resolution

Microscopic image of a thin section (magnification 10x) of clastic (minerogenic) varves from Oeschinensee, Switzerland. The pale and sandy layer (siliciclastic) is formed during summer and the dark and clayey layer (with calcite) during winter. This sequence is from 47-50 cm sediment depth and associated to a cold anomaly detected in Switzerland for AD 1914-1926. > max. resolution

Geochemical characteristics of facies A from Oeschinensee, Switzerland. Scheme of varved sediments, photograph of a thin section, µXRF maps showing qualitative elemental concentrations for the elements Ca in blue, Fe in green and K in yellow (from left to right). > max. resolution

Geochemical characteristics of facies B from Oeschinensee, Switzerland. Scheme of an event layer, photograph of a thin section, µXRF maps showing qualitative elemental concentrations for the elements Ca in blue, Fe in green and K in yellow (from left to right). > max. resolution

Minerogenic varves from Oeschinensee, Switzerland with the base of a turbidite on top. > max. resolution