Geodynamics

Imaggeo on Mondays: Strombolian eruption

Laura Roberts-Artal July 20, 2015

Strombolian eruption. Credit: Jonas Kuhn (distributed via imaggeo.egu.eu)

Jonas Kuhn, a researcher at Heidelberg University , took the photograph during a field campaign at Stromboli volcano in Italy. The objective of this campaign was to gather data from different gaseous compounds of the volcanic plume. Via emission fluxes of volcanic gases (e.g. SO2, CO2, halogen compounds…) or the ratio of emitted gases, one can retrieve information about the interior of the v ...[Read More]

Imaggeo on Mondays: The place where water runs through rocks

Laura Roberts-Artal July 13, 2015

Waved rocks of Antelope slot canyon. Credit: Frederik Tack (distributed via imaggeo.egu.eu)

Antelope Canyon, located in Arizona, USA, was formed by erosion of the Navajo Sandstone, primarily due to flash flooding and secondarily due to other sub-aerial processes (think of physical weathering processes such as freeze-thaw weathering exfoliation and salt crystallisation). Rainwater runs into the extensive basin above the slot canyon sections, picking up speed and sand as it rushes into the ...[Read More]

GeoTalk: Meet Andi Rudersdorf, winner of I’m a Geoscientist 2015!

Laura Roberts-Artal June 26, 2015

Meet Andi! Credit: Andreas Rudersdorf

Earlier this year we ran the second I’m a Geoscientist event, an online chat-based game show in which school kids vote for their favourite geoscience communicators. In this week’s GeoTalk, Laura Roberts talks to Andi Rudersdorf, a neotectonics PhD student and winner of this year’s I’m a Geoscientist… First, for those who didn’t been following I’m a Geoscientist, can you tell us a little about you ...[Read More]

Imaggeo on Mondays: A voyage through scales – The Badlands National Park, South Dakota.

Laura Roberts-Artal June 22, 2015

Badlands national park, South Dakota, USA. Credit: Iain Willis (distributed via imaggeo.egu.eu)

Layer upon layer of sand, clay and silt, cemented together over time to form the sedimentary units of the Badlands National Park in South Dakota, USA. The sediments, delivered by rivers and streams that criss-crossed the landscape, accumulated over a period of millions of years, ranging from the late Cretaceous Period (67 to 75 million years ago) throughout to the Oligocene Epoch (26 to 34 million ...[Read More]