Stratigraphy, Sedimentology and Palaeontology

Imaggeo On Monday: Erosion and suspension

Romain Hemelsdael November 16, 2020

Erosion and suspension . Credit: Romain Hemelsdael (distributed via imaggeo.egu.eu)

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 ima ...[Read More]

Imaggeo On Monday: Micro and Nano composition

Liubov Kuleshova November 9, 2020

Micro and Nano compositions . Credit: Liubov Kuleshova (distributed via imaggeo.egu.eu)

This image shows benthic foraminifera species of Favulina hexagona (Williamson, 1848) together with nanofossils enclosed inside the shell hexagons. This modern foraminifera species was found in the sediment core retrieved from the western slope of the Rio Grande Rise (western South Atlantic). Description by Liubov Kuleshova, after the description on imaggeo.egu.eu. Imaggeo is the EGU ...[Read More]

Imaggeo On Monday: Crete- Diplono Petris (Διπλόνο Πέτρις)

Wolfgang Fraedrich November 2, 2020

Crete: Diplono Petris (Διπλόνο Πέτρις) . Credit: Wolfgang Fraedrich (distributed via imaggeo.egu.eu)

Diplono Petris near Agios Pavlos in the south of Crete island is one of Europe’s most impressive folded rock formations. The rock strata document an alternation of different limestone layers in the pindos top of the Cretan ceiling pile. These sediments, once deposited in a deeper ocean basin of the Pindos Ocean, were deformed in the course of Alpine fold tectonics, triggered by the Northern ...[Read More]

Imaggeo On Monday: Patterns in the landform

Hazel Gibson June 29, 2020

Patterns in the landform. Credit: Basudev Biswal (distributed via imaggeo.egu.eu)

The badlands at the Zabriskie Point (Death Valley, California, USA) rest upon a mudstone foundation. In the prehistoric lakes of Death Valley, fine grained sediments were deposited to form soft rocks. The clay minerals in the mudstone are shaped like tiny plates, which helps create the layers. The combination of the almost impermeable mudstone and Death Valley’s low rainfall makes plant grow ...[Read More]