Fig. 5: Evolution of Bear Island Fan in the Pliocene to Early Pleistocene. | Communications Earth & Environment

Fig. 5: Evolution of Bear Island Fan in the Pliocene to Early Pleistocene.

From: Major tunnel valleys and sedimentation changes document extensive Early Pleistocene glaciations of the Barents Sea

Fig. 5

Paleoenvironments are shown as 3D chair views with RMS amplitude information blended over mapped seismic surfaces. a Contourite sedimentation (Pliocene). b Turbidite sedimentation (2.6 Ma). Black arrows indicate turbidites. c Debrite sedimentation (2.4 Ma). Black arrows indicate debrites. d Tunnel valley formation on a prograding shelf edge and downslope sedimentation (1.78 Ma). Black arrows show tunnel valleys and white arrows show gullies. The grain-size distribution for the tunnel-valley sedimentation is taken for the time interval 1.78–1.5 Ma. Grain size plot from the TGS Facies Map Browser is representative of the interval between the surface shown and the overlying surface. Stratigraphic level of surfaces is shown as red lines in Fig. 4. Seismic data courtesy of TGS.

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