Imaggeo

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]

Imaggeo On Monday: The lost capital of Montserrat

Martin Mergili July 12, 2021

The lost capital of Montserrat. Credit: Martin Mergili (distributed via imaggeo.egu.eu)

Plymouth, the capital of Montserrat, was evacuated in 1995 after the nearby Soufrière Hills Volcano (background of the image) had reactivated. Later on the town was struck by pyroclastic flows, and its centre was almost completely buried by material relocated from the upper slopes through lahars. The suburb of Town Hill can still be seen in the right centre of the photo. It remains an exclusion zo ...[Read More]

Imaggeo On Monday: Both Ends of the Rainbow

Adam Ciesielski July 5, 2021

Both ends of the rainbow. Credit: Adam Ciesielski (distributed via imaggeo.egu.eu)

A double rainbow was captured when heading through the glaciated Benasque valley, located in the heart of the Pyrenees. The photo was taken just before the sunset, after heavy rainfall. A rainbow is caused by reflection and dispersion of light in water droplets. Second rainbow arc results from one reflection more than in the first one, thus the rainbow colours are “reverted”. The geome ...[Read More]

Imaggeo On Monday: A drift of sea-snail shells

Pontus Lurcock June 28, 2021

A drift of sea-snail shells. Credit: Pontus Lurcock (distributed via imaggeo.egu.eu)

A collection of washed-up shells on a beach on the south island of New Zealand. Shore transport processes have produced a well-sorted drift of similarly sized (approx. 1-2 cm) shells and shell fragments. The main species represented are the common turret shell (Maoricolpus roseus) and wheel shell (Zethalia zelandica), both sea snails endemic to New Zealand. Description by Pontus Lurcock, af ...[Read More]