geomorphology

Imaggeo on Mondays: Refuge in a cloudscape

Olivia Trani April 23, 2018

Refuge in a cloudscape. Credit: Julien Seguinot (distributed via imaggeo.egu.eu )

The action of glaciers combined with the structure of the rock to form this little platform, probably once a small lake enclosed between a moraine at the mountain side and the ice in the valley. Now it has become a green haven in the mountain landscape, a perfect place for an alp. In the Alps, stratus clouds opening up on autumn mornings often create gorgeous light display. That day, some of the f ...[Read More]

Imaggeo on Mondays: Viñales Valley

Laura Roberts-Artal September 4, 2017

Vinales Valley . Credit: Alexis Merlaud (distributed via imaggeo.egu.eu).

From last week’s unusual desert landscape to this week’s lush valley in Cuba… The picture shows the Vinales Valley, a karstic depression with mogotes in western Cuba. Karst is the general term for landscapes formed when limestone is disolved by carbonic acid, in rain water. This leads, in particular, to the formation of an underground network of caves and rivers. In the tropics, ...[Read More]

Imaggeo on Mondays: Sediments make the colour

Eva Eibl July 17, 2017

Sediment makes the colour . Credit: Eva P.S. Eibl (distributed via imaggeo.egu.eu)

Earth is spectacularly beautiful, especially when seen from a bird’s eye view. This image, of a sweeping pattern made by a river in Iceland is testimony to it. The picture shows river Leirá which drains sediment-loaded glacial water from the Myrdalsjökull glacier in Iceland. Myrdalsjökull glacier covers Katla, one of Iceland’s most active and ice-covered volcanoes. A high sediment load (the suspen ...[Read More]

Imaggeo on Mondays: Sneaking up from above

Jan Blöthe May 8, 2017

Sneaking up from above . Credit: Jan Blöthe (distributed via imaggeo.egu.eu)

Take some ice, mix in some rock, snow and maybe a little mud and the result is a rock glacier. Unlike ice glaciers (the ones we are most familiar with), rock glaciers have very little ice at the surface. Looking at today’s featured image, you’d be forgiven for thinking the Morenas Coloradas rock glacier wasn’t a glacier at all. But appearances can be misleading; as Jan Blöthe (a researcher at the ...[Read More]