GeoLog

EGU

Imaggeo On Monday: Layers of dust and snow

Imaggeo On Monday: Layers of dust and snow

This image shows layers of dust and snow at the surface of Fox Glacier, Southern Alps, New Zealand. The glacier surface in the upper part of Fox Glacier’s ice fall is heavily crevassed and intersected into seracs. Individual layers of fresh and old snow are visible, some with visible thin dust layers at their surface. The more reddish dust layers in the lower part of the image had been gener ...[Read More]

Imaggeo On Monday: Iceberg A-81, Brunt Ice Shelf, Antarctica

Imaggeo On Monday: Iceberg A-81, Brunt Ice Shelf, Antarctica

Information from a British Antarctic Survey Press Release. A huge iceberg (1550 km²), almost the size of Greater London, has broken off the 150m thick Brunt Ice Shelf. It calved after cracks that have been developing naturally over the last few years extended across the entire ice shelf, causing the new iceberg to break free. This occurred on Sunday 22 January between 19.00 and 20.00 UTC during a ...[Read More]

Imaggeo On Monday: Eyjafjallajökull – hot and cold

Imaggeo On Monday: Eyjafjallajökull – hot and cold

Active volcano Eyjafjallajökull is covered by 80 square kilometres of glaciers. Quite often one can feel the warmth from the red igneous rocks that protrude from the ice cap. The volcano is known for the eruption in April 2010, which released ash clouds so large that in some areas they turned daylight into darkness. Many flights in Europe were cancelled. A significant part of the glacier melted in ...[Read More]

Imaggeo On Monday: High amplitude ‘V-shaped’ kink fold with axial plane cleavage

Imaggeo On Monday: High amplitude ‘V-shaped’ kink fold with axial plane cleavage

The Himalayan-Tibetan orogeny has been considered the youngest collisional fold belt in the Earth and a classic example of intercontinental collision orogeny. It is comprised of different litho-tectonic units manifested by normal/thrust faults and suture zones (Valdiya, K.S., 1977). The Himalayan region has experienced multifaced deformation, spectacular rock assemblages with high-pressure-tempera ...[Read More]