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.
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