GD
Geodynamics

mantle plume

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]

Journey of the Indian plate

March 30, 2022
Journey of the Indian plate
From the top of one of the largest monoliths in the Southern Indian craton | PC: Samik Sadhu | https://samiksadhu.weebly.com

Plume craton interaction is a fascinating geological phenomenon. The Indian plate, which has experienced several plume eruptions underneath it, is one of the best locations to study the effect of plume craton interaction. In this week’s news and view, I will provide an overview of the controversy and hypotheses related to the plume craton interaction within the Indian plate since the mid-Cre ...[Read More]

The Deccan Chronicle: Plume or no-Plume? Perspective from a Deccan dyke swarm

and October 27, 2021
The Deccan Chronicle: Plume or no-Plume? Perspective from a Deccan dyke swarm
Source: https://www.maxpixel.net/static/photo/1x/Mountain-Eruption-Smoke-Volcano-Landscape-Lava-4129533.jpg

Deccan volcanism is one of the landmark events in India’s geodynamical history. Yet, its origin is still under debate regarding its association with the Réunion plume.  In this week’s news and views, Ayanangshu Das, a PhD student at the Indian Institute of Science Education and Research (IISER), Bhopal, explains their recent study to understand the emplacement mechanism by observing the magm ...[Read More]