GD
Geodynamics

edited by Jyotirmoy Paul

Jyotirmoy is a PhD student at the Indian Institute of Science (IISc), Bangalore. His research work focuses mainly on understanding the evolution of cratons using time-dependent mantle convection models. Jyotirmoy is part of the GD blog team as an editor. He is also manages the GD Facebook page as part of the social media team. You can reach Jyotirmoy via twitter @GeophyJo.

Curious case of convex upwards topography in accretionary wedges

Curious case of convex upwards topography in accretionary wedges

Accretionary prisms are wedge-shaped bodies of crustal rocks that are commonly known to have formed by accommodating the component of convergence along subduction margins. These prisms, primarily wedge shaped with lateral variations in topographic height from hinterland to foreland are commonly characterised by a gentle and uniform slope towards the frontal margin (for instance, the Himalayan fold ...[Read More]

Stellar storms in other worlds: implications for the stability of exoplanetary atmospheres

Stellar storms in other worlds: implications for the stability of exoplanetary atmospheres

Stellar storms modify the atmospheric evolution of planets. ‘Hot Jupiter’ planets being very close to their host star, are often affected by such storms. In this week’s peculiar planet, Gopal Hazra, a post-doctoral fellow at the School of Physics, Trinity College Dublin, discusses effect of stellar storms on those planets using his self-consistent hydrodynamic models of planetary ...[Read More]

The geophysicist’s toybox

The geophysicist’s toybox

Simplified models or toy models explain the complex Earth processes fairly well, even though they are far from reality. In this week’s Geodynamics 101, Adam Beall, Research Associate at Cardiff University, discusses some of his favourite geophysical toy models! I remember being excited to first hear about scientists doing Earth modelling and imagined impressive computer visualisations of tec ...[Read More]

Magnetic field generation and its reversal in dynamo models

Magnetic field generation and its reversal in dynamo models

Generation and reversal of the Earth’s magnetic field have remained one of the most controversial topics. In this week’s geodynamics 101, Debarshi Majumder, a PhD student from the Indian Institute of Science, gives a brief overview of the theory of geodynamo reversal and discusses some of the preliminary results obtained from numerical modelling. A planetary magnetic reversal is one of ...[Read More]