GeoLog

Imaggeo

Imaggeo On Monday: Vanished glaciers of the past

Imaggeo On Monday: Vanished glaciers of the past

No glaciers remained in the High Tatras since the last glaciation, but beautiful glacially carved landscapes and a multitude of small glacial lakes. This one, Zamrznuté pleso (2045 a.s.l.) is at one of the beautiful hike trails in the eastern part of the Tatras, the path through Poľský hrebeň and to the summit Východná Vysoká …[Read More]

Congratulations to the winners of the EGU23 Photo Competition!

Congratulations to the winners of the EGU23 Photo Competition!

For this year’s Photo Contest, EGU received hundreds of amazing images capturing a broad spectrum of the geosciences. After the selection committee whittled the field down to 10 finalists, you have been voting for your favourites throughout EGU23’s week-long conference, both on-site in Vienna at the EGU Booth, and online. After an enthusiastic response from …[Read More]

Imaggeo On Monday: Fingerprint in the cotton

Imaggeo On Monday: Fingerprint in the cotton

This photo is taken at the Pamukkale (meaning “cotton castle” in Turkish), a natural site near Denizli, Turkey. This location is world famous for terraces made of snow-white travertine, a sedimentary rock deposited by water from the hot springs, and a stunning turquoise water color. Close look at the surface texture reveals an extraordinary pattern …[Read More]

Imaggeo On Monday: Wannabe cubic calcite

Imaggeo On Monday: Wannabe cubic calcite

This imperfect cube of calcite was formed on the gold surface during the electrochemically assisted scaling process. Once negative electrochemical potential is applied to the gold surface, the oxygen dissolved in water undergoes reduction, yielding hydroxide anions. These anions accumulate at the gold-solution interface, forming a high pH layer. As calcite becomes less soluble with …[Read More]

Imaggeo On Monday: Blue cements in Jurassic rocks?

Imaggeo On Monday: Blue cements in Jurassic rocks?

Staining of thin sections and rock slabs is a method of identification that has long helped researchers to distinguish certain minerals which often otherwise appeared very similar. Modern studies have now largely replaced this method of identification with more analytical techniques that usually provide a higher degree of certainty, such as analysis with a microprobe …[Read More]