Baldeggersee

Country:

Switzerland

Lake type:

glacial lake

Category: endogenic varves

Elevation:

460 m asl

Max depth:

33 m

Surface area:

5.2 km2

Catchment area:

73 km2

Archive type:

lacustrine sediments

Author of images:

Andy Lotter

Reference:

LOTTER, A.F., STURM, M., TERANES, J.L. & WEHRLI, B 1997: Varve formation since 1885 and high-resolution varve analyses in hypertrophic Baldeggersee (Switzerland). Aquatic Sciences 59, 304-325.

Link to reference or DOI:

http://dx.doi.org/10.1007/BF02522361

Freeze core taken at 66 m of water depth in Baldeggersee (Switzerland) in November 1993. Transition of the oxic/anoxic lake state (i.e. onset of laminations) occurred in 1885 > max. resolution

Details of freeze core from Baldeggersee (Switzerland) with light calcite (spring/summer) and dark organic (autumn/winter) layers > max. resolution

Details of freeze core from Baldeggersee (Switzerland) with light calcite (spring/summer) and dark organic (autumn/winter) layers > max. resolution

Microscopic details of varves from Baldeggersee (Switzerland), light calcite (spring/summer) and dark (autumn/winter) layers are visible for the year 1984 > max. resolution

Slab of freeze core from Baldeggersee (Switzerland) during sampling of seasonal layers. The light, calcite layer has been scratched off in the upper part, where the dark winter layer is visible. > max. resolution