GeoLog

Geodynamics

Imaggeo On Monday: Alps highest peak meets folded sea floor

August 23, 2021
Imaggeo On Monday: Alps highest peak meets folded sea floor
Alps highest peak meets folded sea floor . Credit: Antoine Clausse (distributed via imaggeo.egu.eu)

During the late Jurassic, this dolostone was formerly at the sea floor, but after millions years of tectonic movements and natural forces, these rocks now appear at 3000m! Mont Blanc, the highest peak of the Alps is less than 20km away, and is visible in the background. Thank to the Alpine collision, this former sea floor was thrusted over gneiss and granite to make both geologists and mountaineer ...[Read More]

Imaggeo On Monday: Water Force

May 31, 2021
Imaggeo On Monday: Water Force
Water Force. Credit: Daniela Lobianco (distributed via imaggeo.egu.eu)

A force is a push or pull upon an object resulting from the object’s interaction with another object. This image shows the most magnificent force in nature; water, interacting with an inclined rock formation, with a backdrop of the magnificent landscapes of Canada.   Description by Daniela Lobianco, after the description on imaggeo.egu.eu.   Imaggeo is the EGU’s online open access ...[Read More]

Imaggeo On Monday: Yardangs in the Gobi desert

May 24, 2021
Imaggeo On Monday: Yardangs in the Gobi desert
Yardangs in the Gobi desert. Credit: Jonathan D. Müller (distributed via imaggeo.egu.eu)

Seeing the Yardang rock formations during sunset was a surreal experience. While they seem to have be standing in a sea of water that formed them, the fluid dynamics that actually lead to their existence is the result of wind abrasion by dust and sand and the removal of loose material by wind turbulence. The air flow and resulting pattern of erosion and the distribution of rocks determines their s ...[Read More]

Imaggeo On Monday: Tides at Young Sound

May 10, 2021
Imaggeo On Monday: Tides at Young Sound
Tides at Young Sound. Credit: Maria Scheel (distributed via imaggeo.egu.eu)

The work of the autumn tides at Young Sound, Northeast Greenland, created a fine sand artwork just before the freezing in of the fjord with the approaching winter. Due to the changing sediment of the nearby Zackenberg river, the local coastal erosion is an object of great recent investigations.   Description by Maria Scheel, after the description on imaggeo.egu.eu.   Imaggeo is the EGU’s ...[Read More]