Fig. 2
From: Amber in the Cretaceous deep sea deposits reveals large-scale tsunamis
The mode of occurrences of amber and associated sedimentary structures. a, b Amber concentration in Am 02 widely exposed on the bedding plane. c A large driftwood in claystone bed of W 02. d, e A planar-shaped amber in Am 01. e A fluorescence tomogram (NMNSDS00047_c1_wluv365_01_0003) showing soft-resin deformation structures. Cross section. Photographed simultaneously under UV and white lights. Stratigraphically upward is the proximal side of the surfaces in photographs (a–c). See Fig. 1d for horizons of a–e.
