Fig. 4
Photographs of sediment cores. Coring positions are indicated in Fig. 2. The scale that is given on the left edge of the pictures does not correspond to the composite depth of the cores. Bending of layers results from coring disturbance. Core photographs from delta cores 4 (a) and 5 (b). (a) Sharp transition from the organic-rich deposits of Lithologic Unit (LU) D3 (below) to the lacustrine sediment of LU D2B (above). (b) Patch of carbonate bearing lacustrine sediment, which is embedded in the organic-rich deposits of LU D3. Core photographs from basinal cores 3 (c) and 1 (d) showing the Lithotype (LT) B3-layers deposited by the 1806 ad mass wasting event. Note that the layers are not shown in full extent. (c) The top of the 1806 ad LT B3-layer in landslide-proximal core 3 is characterized by a bright, whitish cap. The transition from the underlying LT B1 sediment to the 1806 ad LT B3-layer is also clearly visible. (d) The top of the 1806 ad LT B3-layer in landslide-distal core 1 is characterized by a similar bright, whitish cap as within the same layer in core 3. Transition from underlying background sediment (LT B1) to 1806 ad LT B3-layer is rather faint. Core photographs from basinal cores 3 (e) and 1 (f) showing the background sedimentation (LT B1), which is irregularly intercalated by LT B2 layers, recognizable by their rather dark gray color