GD
Geodynamics

Remarkable Regions

Between the Volcano and the Deep Blue Sea: Tales from Montserrat (Part 1)

, and October 9, 2024
Between the Volcano and the Deep Blue Sea: Tales from Montserrat (Part 1)
A view of Soufrière Hills Volcano from the Montserrat Volcano Observatory, May 16th, 2024.

In 1995, the Caribbean Island of Montserrat was shaken by the beginning of one of the most significant volcanic eruptions in recent history: one that profoundly changed the natural, social and economical landscape of the country. Three decades later, Soufrière Hills Volcano and its legacy of destruction still shape the lives of Montserrat’s people. Join us on the first part of our reportage and fi ...[Read More]

An Arctic enigma: Can a single plume explain a massive and long-lived ancient volcanic eruption?

and July 17, 2024
An Arctic enigma: Can a single plume explain a massive and long-lived ancient volcanic eruption?
Volcanic eruption in Iceland from 2014. The mantle plume responsible for present-day Icelandic volcanism may also have caused the massive and wide-spread HALIP in the Arctic. Credit: Jamie Farquharson (distributed via imaggeo.egu.eu).

  Across the Arctic lies evidence for a massive past volcanic event, called the High Arctic Large Igneous Province (HALIP). This ancient volcanic event is particularly unusual in that it appears to have lasted for over 50 million years. Could a single deep-seated mantle plume cause such wide-spread and long-lived volcanism? In a recent study published in the journal G-cubed (Heyn et al., 2024 ...[Read More]

Exploring the Evolution of Rift Magmatism through Numerical Modelling

and June 5, 2024
Exploring the Evolution of Rift Magmatism through Numerical Modelling
A view of the volcanoes of Chaîne des Puys in Auvergne, France, associated to the Limagne Graben. Credit: Alpha du centaure (https://www.flickr.com/photos/alphaducentaure/11912337466/) / Wikipedia, CC BY-2.0

Continental rifts are a striking manifestation of the forces at work in the Earth’s interior and are often associated with volcanic activity. Contrary to intuition, volcanism is not confined to rift grabens, but migrates as the rifts evolve. How and why this happens is still not clear. This week, Gaetano Ferrante from Rice University, Houston (USA) will share his research with us, showing ho ...[Read More]