GeoLog

Imaggeo

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]

Imaggeo On Monday: Nature’s impressionist painting

Imaggeo On Monday: Nature’s impressionist painting

The image shows an incredible blend of colors in a natural cave in Kolob Canyons near Zion National Park, Utah. Formed by the oxidation of minerals lining the walls of the cave and snow melt, the sight feels like a natural inspiration for impressionist painting. This well-hidden gem is a lesser known treasure at the end of a hike in a lesser frequented part of the region near the more-famous Zion ...[Read More]

Imaggeo On Monday: Pamukkale, the cotton castle

Pammukkale, the cotton castle by Paula Ballikaya

  Pamukkale, the cotton castle by Paula Ballikaya. (distributed via imaggeo.egu.eu). Terraces of rock are crowned with the candle wax-like deposits of travertine, the white, fibrous limestone which characterises the Pamukkale UNESCO World Heritage Site and which is featured in the photo above. Despotised and moulded over 400,000 years by the calcite-rich mineral water flowing from the site ...[Read More]