Corrugations beneath seafloor: Cocos and Caribbean tectonic plates

3D computer image shows corrugations beneath the seafloor where tectonic plates move past each other.

Detailed Description

Computer image of bedrock grooves (corrugations) derived from 3D seismic imaging offshore of Costa Rica. It shows the megathrust fault surface of the Cocos Plate diving beneath the Caribbean Plate, with the upper plate virtually removed. Some of the fault surface has long, straight corrugations; some appears more jumbled. Researchers stretched the image slightly to make the grooves easier to see. The view is roughly from Costa Rica looking offshore. Source: USGS and UC Santa Cruz.


Image Dimensions: 2004 x 1283

Location Taken: US