GD
Geodynamics

Remarkable Regions

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]

Unravelling the Magma Plumbing network of the Deccan Traps

and May 29, 2024
Unravelling the Magma Plumbing network of the Deccan Traps
Source: https://www.kunr.org/world-headlines/2024-01-14/a-volcano-erupts-in-iceland-sending-lava-flowing-toward-a-nearby-town

In this week’s blog, Garima Shukla, ECS representative of the Geodynamics Division and PhD student at the Indian Institute of Science Education and Research, Bhopal, India, working with Dr. Jyotirmoy Mallik, discusses her research involving fieldwork and statistical calculations. Her research also delves into rock magnetism and palaeomagnetism to unravel the longstanding enigmas surrounding ...[Read More]

Summer of ‘23: Chronicles of a summer school on meteorite and comet impacts.

and March 27, 2024
Summer of ‘23: Chronicles of a summer school on meteorite and comet impacts.
Exploring geologic formations along the Nördlingen Ries impact Crater. Credit: Attendees of the school.

One of the best-researched and preserved impact craters on Earth is the Ries Crater (Germany). Hikers, bikers, school groups,  and geo-tourists from all over the world come here in search for the evidence of the cosmic catastrophe. In this week’s blog post, PhD student Katherine Villavicencio from University G. d’Annunzio (Italy) shares her experience when attending the Summer School “Impacts and ...[Read More]