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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]

CR
Cryospheric Sciences

The Polar Night Week and the Svalbard Integrated Arctic Earth Observing System

The Polar Night Week and the Svalbard Integrated Arctic Earth Observing System

In the early days of 2023, nearly 100 researchers gathered in Longyearbyen, Svalbard, one of the last permanently inhabited places before reaching the North Pole (see my previous blogpost about Svalbard). The Svalbard Integrated Arctic Earth Observing System (SIOS) held its fifth Polar Night Week. SIOS is an international partnership of research institutions that study …[Read More]

GeoLog

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]