GD
Geodynamics

volcanism

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

, and February 21, 2024
Geotandem: The Red Planet, often recognized as a dead planet, is not quite dead after all, at least geodynamically speaking
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]

The first observational evidence for a volcanically active Venus

and March 22, 2023
The first observational evidence for a volcanically active Venus
An artist’s impression of active volcanoes on Venus, depicting a subduction zone and an active volcano.
Credit: NASA/JPL-Caltech/Peter Rubin

Our neighbouring planet Venus is gaining popularity in the terrestrial planetary sciences, especially since the selection of three new Venus missions by NASA and ESA in 2021. Now, for the first time ever, scientists have directly observed surface changes that indicate active volcanism on Venus. This discovery was made with data from NASA’s 30-year-old Magellan mission and is only a small preview f ...[Read More]

Arc and Intraplate Volcanism in Northeast Asia Since mid-Miocene: Numerical model studies

and January 11, 2023
Arc and Intraplate Volcanism in Northeast Asia Since mid-Miocene: Numerical model studies
Locations of the Quaternary arc and intraplate volcanoes in Northeast Asia, depicted as black triangles, with major plate boundaries. Modified from Kim et al. (2015).

Northeast Asia may be one of the best natural laboratories to investigate both arc and intraplate volcanisms which have developed since the mid-Miocene. The arc volcanoes have occurred above the sinking young (Philippine) and old (Pacific) oceanic plates in Southwest and Northeast Japan subduction zones, respectively. The intraplate volcanoes across the Korean Peninsula and China have occurred abo ...[Read More]

Iron volcanism on metallic asteroids?

July 10, 2019
Metallic asteroid
A metallic asteroid with iron volcanism (Elena Hartley)

This week, Francis Nimmo, professor in the Department of Earth and Planetary Sciences (University of California Santa Cruz), tells us about volcanism on metallic asteroids! Around and after the formation of the solar system (4.5 billion years ago onwards), volcanoes on some of the gigantic bodies of the asteroid belt might have erupted … iron. Explanations. One way in which we can learn abou ...[Read More]