volcanism

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

Björn Heyn and edited by Constanza Rodriguez Piceda July 17, 2024

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

Gaetano Ferrante and edited by Lorenzo Mantiloni June 5, 2024

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

Garima Shukla and edited by Constanza Rodriguez Piceda May 29, 2024

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]

Geotandem: The Red Planet, often recognized as a dead planet, is not quite dead after all, at least geodynamically speaking

Scott King, Joshua Murphy and edited by Constanza Rodriguez Piceda February 21, 2024

Figure courtesy: Emily Hinshaw

Welcome to the first of its kind, the Geotandem 01! A collaborative series between EGU divisions. Interdisciplinarity is intrinsic to Geosciences, so we want to showcase how researchers approach the same topics from different but also complementing perspectives. In each edition, we will bring you a high-interest topic for the community seen from the eyes of diverse disciplines. Today, the Tectonic ...[Read More]