Corrugations beneath seafloor: Cocos and Caribbean tectonic plates
By Pacific Coastal and Marine Science Center
February 2018 (approx.)
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.
Sources/Usage
Public Domain.
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