Regular Features

Imaggeo On Monday: Križna jama

Peter Huber January 24, 2022

Križna jama . Credit: Peter Huber (distributed via imaggeo.egu.eu)

The Križna jama Cave on the east side of the periodic Cerknica Lake in Slovenia is an underground karstic cave primarily famous as a rich site of bones of the extinct cave bear, Ursus speleus. The eight kilometer long cave is full of stalagmites and stalactites (sometimes called drip-stone decorations) and also boasts 50 underground lakes separated by sinter barriers through which crystal clear wa ...[Read More]

Imaggeo On Monday: Quartz – sericite mylonite, Calamita, Elba

Samuele Papeschi January 17, 2022

Quartz - sericite mylonite, Calamita, Elba . Credit: Samuele Papeschi (distributed via imaggeo.egu.eu)

Concomitant thrusting and magmatism resulted in the development of ductile mylonites in the Calamita Schists, part of the contact aureole of the Late Miocene Porto Azzurro pluton. This mylonite is made up of stretched and recrystallized quartz layers, interlayered with thin sericite-rich levels. Sericite resulted from the crushing of contact-metamorphic minerals such as andalusite, cordierite, and ...[Read More]

The James Webb Telescope may forever alter our view of the universe

Gillian D'Souza January 14, 2022

James Webb Space Telescope: Launch Day. Photo Credit: (NASA/Bill Ingalls)

Where is Webb? This seemingly simple question is quickly making its way into everyday conversation, and not just in scientific and astronomy circles. After a long 32-year wait, NASA officially launched the James Webb Telescope a couple of weeks ago on 25 December 2021. More recently, the telescope deployed its final primary mirror segment on 8 January this year, a crucial milestone in its mission ...[Read More]

Imaggeo On Monday: Artificial peridotite takes its gold coat off

Thomas P. Ferrand January 10, 2022

Artificial peridotite takes its gold coat off . Credit: Thomas P. Ferrand (distributed via imaggeo.egu.eu)

Sometimes in order to test a theory about how processes work below the surface of the Earth, scientists need to recreate minerals found in very specific circumstances. This photograph was taken through a binocular microscope during a critical step of the creation of artificial peridotite: extraction of the artificial peridotite from its gold capsule. The sample is a little cylinder, 3 mm long with ...[Read More]