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Imaggeo On Monday: Erosion and suspension

Imaggeo On Monday: Erosion and suspension

This image shows bottomset beds from the Kerinitis Gilbert-type delta. The Pleistocene delta uplifts along the active southern margin of the Corinth rift in Greece. A bottomset bed is one where layers of sedimentary material lying along the bottom of a body of water near the point of entry of a stream are subsequently covered by foreset and topset beds in the formation of a delta. Thus in this image you can see the finely laminated silts draped over the pebbles and cobbles of the underlying bed.

 

Bottomset gravity-driven conglomerates originate from the unstable delta front. Deposition of highly erosive conglomerates are followed by suspension fall-out. This photo is part of an remarkable outcrop displaying the variety of depositional processes involved in bottomset beds sedimentation.

 

Description by Romain Hemelsdael, after the description on imaggeo.egu.eu.

 

Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open access, these images can be used for free by scientists for their presentations or publications, by educators and the general public, and some images can even be used freely for commercial purposes. Photographers also retain full rights of use, as Imaggeo images are licensed and distributed by the EGU under a Creative Commons licence. Submit your photos at http://imaggeo.egu.eu/upload/.

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