GD
Geodynamics

edited by Giridas Maiti

Giridas Maiti is a postdoctoral researcher at the Karlsruhe Institute of Technology (KIT), Germany. He is currently investigating the geodynamic causes for slab breakoff and tearing processes in the Alps and their impacts on the tectonics of the North Alpine Foreland Basin (NAFB) using 3D numerical modeling. During his Ph.D., he worked on geodynamic modeling of the subduction-collision process in the spatiotemporal evolution of the Himalaya-Tibet mountain system. Giridas is part of the GD blog team as an editor. You can reach Giridas via email (giridas.maiti@kit.edu).

Exploring rheology of Earth’s materials: The marvels of high-temperature high-pressure deformation experiments

and May 1, 2024
Exploring rheology of Earth’s materials: The marvels of high-temperature high-pressure deformation experiments
[Mylonitization in quartz rich rocks from Himalayan shear zone, from Ghosh et al., 2023]

The Earth, with its towering mountains, shifting tectonic plates, and dynamic geological processes, has always been a subject of fascination and inquiry for scientists. Amidst the vast array of scientific disciplines, one relatively small yet impactful field, known as experimental rock deformation, plays a crucial role in unraveling the mysteries hidden beneath the Earth’s surface. Though th ...[Read More]

T for temperature in seismic [T]omography and more

and October 11, 2023
T for temperature in seismic [T]omography and more

Seismic tomography, a powerful geophysical technique, is like the Sherlock Holmes of the Earth’s interior. It helps us uncover crucial information about the lithosphere and mantle, including temperature and density distributions. Understanding these physical properties is vital for a wide range of geological applications, from identifying regions of strain localization to assessing geotherma ...[Read More]

How does slab tearing evolve?

, and March 29, 2023
How does slab tearing evolve?

Slab tearing refers to the gradual propagation of the break-off of a subducting plate. As observed in numerous modern and ancient convergent tectonic settings, the growth of the tear “window” in the downgoing plate has strongly influenced various geologic and geodynamic processes, such as depocenter migration of foreland basins, uplift rates in mountain ranges, earthquakes, volcanism, and flow pat ...[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]