Geodynamics

edited by Yinuo Zhang

Yinuo Zhang is a PhD student in marine geology at the University of the Chinese Academy of Sciences. She is interested in mid-ocean ridges, as well as their adjacent hotspots and transform faults. Her research focuses on analyzing geophysical data and geodynamical models to investigate the interactions among these geological features. Currently, she is working on the evolution of transform faults at the GEOMAR Helmholtz Ocean Research Centre.

New Insights into Plume Buoyancy Fluxes and Dynamic Topography from Numerical Modelling

Ziqi Ma, edited by Yinuo Zhang and edited by Constanza Rodriguez Piceda January 8, 2025

Figure 1. Illustration of the hotspot swell and plume buoyancy flux. White dashed line shows the original seafloor topography due to half-space cooling. Dark green line represents the surface dynamic topography caused by the dynamic uplift of the plume. One of the main surface expressions of dynamic topography are hotpot swells formed by mantle plumes. In this week’s post, Ziqi Ma, PhD candi ...[Read More]

What’s the role of hotspot and oceanic transform faults at ultraslow spreading ridge?

edited by Yinuo Zhang and edited by Constanza Rodriguez Piceda October 4, 2024

Figure 1. Topographic map of the Mohns Ridge. The white double lines denote the axis of 17 ridge segments. (modified from Zhang et al., 2023)

Mid-ocean ridges (MOR) and hotspots are two types of magmatic activity occurring in the ocean. The MORs are typically associated with another tectonic feature—oceanic transform faults. While numerous studies have focused on the interactions within MORs, hotspots, and transform faults, there has been limited research on cases where a hotspot and a transform fault are located at the same end ...[Read More]