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.

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]

Whole solid-Earth numerical simulation: Towards an understanding of mantle-core interactive dynamics

Whole solid-Earth numerical simulation: Towards an understanding of mantle-core interactive dynamics

Due to huge difference between the time scale of the mantle convection and the outer core convection, they are modelled separately. In this week’s News and Views, Masaki Yoshida from the Volcanoes and Earth’s Interior Research Center, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan, put forward the recent development on the modeling of the whole solid-Earth. The E ...[Read More]

Modelling the deformation in the Indian plate and the India-Eurasia collision zone

Modelling the deformation in the Indian plate and the India-Eurasia collision zone

A complete fluid dynamical approach of modeling the Earth’s deformation can not provide a complete picture due to presence of rigid lithospheric plates. In this week’s news and views, Srishti Singh, scientist at National Geophysical Research Institute, India, explains how coupled models of lithosphere dynamics and mantle convection are developed.  The ongoing collision of the Indian plate wi ...[Read More]

Rayleigh-Taylor instability in geodynamics

Rayleigh-Taylor instability in geodynamics

Flow against gravity is a common feature in the geodynamic phenomenon. In this week’s Geodynamics 101, Dip Ghosh from Jadavpur University Geodynamics Lab will explain the fundamentals of Rayleigh-Taylor instability: A key to understanding the anti-gravity flow. It has long been realized that most of the geodynamic processes can be described in terms of slow viscous flow. Thus, like many othe ...[Read More]