GeoLog

Imaggeo

Imaggeo on Mondays: The Grid – A serpentine pseudomorph after carbonate

June 1, 2020
Imaggeo on Mondays: The Grid – A serpentine pseudomorph after carbonate
The Grid - A serpentine pseudomorph after carbonate. Credit: Kristina Dunkel (distributed via imaggeo.egu.eu)

The structures in this photo might look three-dimensional, but they are completely flat. It is a photo of a polished thinsection of a rock, taken through a petrographic microscope under cross-polarized light. The width of the image is just 2 mm. The brownish mineral around the edges is carbonate, the white to grey mineral in the centre is serpentine, a water-bearing silicate mineral. The different ...[Read More]

Imaggeo on Mondays: Moonrise at Kata Tjuta

May 25, 2020
Imaggeo on Mondays: Moonrise at Kata Tjuta
Moonrise at Kata Tjuta. Credit: John Clemens (distributed via imaggeo.egu.eu)

This is a high-dynamic-range (HDR) photograph of moonrise over the hills of Kata Tjuta in central Australia. The HDR technique allows details to be seen in the deep shadows and well as in the brighter parts of the image. Kata Tjuta (formerly known as The Olgas) means ‘many heads’ in the Pitjantjatjara language, spoken by the local Anangu people. The location is approximately 360 km SW of the ...[Read More]

Imaggeo on Mondays: Loowit – the lady of fire.

May 18, 2020
Imaggeo on Mondays: Loowit – the lady of fire.
Loowit - the lady of fire. Credit: Hazel Gibson (distributed via imaggeo.egu.eu)

Today marks the 40th anniversary of the explosive eruption of volcano Mount St Helens, in western Washington State in the USA. So we wanted to feature this iconic volcano in this week, in our weekly feature, Imaggeo On Mondays. If you would like your imaggeo image featured in our blog, please contact the EGU Communications Officer.   Mt St Helens, in Washington State USA, is possibly one of t ...[Read More]