Geomorphology

Imaggeo On Monday: Ice caves in high altitude karstic areas

Renato R. Colucci December 13, 2021

Ice caves in high altitude karstic areas. Credit: Renato R. Colucci (distributed via imaggeo.egu.eu)

High altitude karstic environments often preserve permanent ice deposits within caves, representing a lesser-known portion of the cryosphere. Despite being not so widespread and easily reachable as mountain glaciers and ice caps, ice-caves preserve a great deal of information about past environmental changes and paleoclimatic evolution. Since one of their main characteristics is to have ground-ice ...[Read More]

Imaggeo On Monday: An ever evolving landscape – Orog Nuur, Mongolia

Jorien van der Wal July 26, 2021

An ever evolving landscape - Orog Nuur, Mongolia. Credit: Jorien van der Wal, (distributed via imaggeo.egu.eu)

At the transition from the Gobi Altay ranges to the Valley of the Lakes in South West Mongolia, the Ikh Bogd mountain towers almost 3000 m above the aridifying endorheic Orog Nuur Basin. The actively deforming mountain front shows traces of multiple earthquakes, which in turn affect the alluvial sediments deposited in the basin. Simultaneously, strong south-eastward winds create beautiful barchan ...[Read More]

Geology and the Olympic Games

Aoife Glass July 23, 2021

Chūrei-tō pagoda and Mount Fuji with cherry blossoms in the Arakurayama Sengen Park, Fujiyoshida, Yamanashi, central Japan. Credit: Reggipen, Wikimedia

Over the last few days the best athletes in the world have been descending on Japan for the long anticipated Tokyo Olympic Games, and it’s going to be a special and spectacular event. The Olympics have a long and rich history, and from their very inception have been influenced by geology, whether it’s earthquakes affecting venues or geological processes creating the very terrain athletes will be c ...[Read More]

Imaggeo On Monday: Rock pyramid shaped by weathering

Christoph Mayr July 19, 2021

Rock pyramid shaped by weathering. Credit: Christoph Mayr (distributed via imaggeo.egu.eu)

The almost perfect rock pyramid in the foreground was formed by physical weathering and found in the Los Glaciares National Park in southern Argentina. The block was deposited on top of a rock surface polished by glacial erosion. The pyramidal peaks in the background are also the result of glacial erosion, albeit on a much larger scale. Description by Christoph Mayr, after the description o ...[Read More]