East Pacific Rise Photograph - 3-d Map Of Part Of The East Pacific Rise by Dr Ken Macdonald/science Photo Library

3-d Map Of Part Of The East Pacific Rise is a photograph by Dr Ken Macdonald/science Photo Library which was uploaded on September 25th, 2018.

3-d Map Of Part Of The East Pacific Rise

False-colour, three-dimensional map of part of the East Pacific Rise, showing a discontinuity called an overlapping spreading centre (OSC). The East... more

by Dr Ken Macdonald/science Photo Library

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Title

3-d Map Of Part Of The East Pacific Rise

Artist

Dr Ken Macdonald/science Photo Library

Medium

Photograph

Description

False-colour, three-dimensional map of part of the East Pacific Rise, showing a discontinuity called an overlapping spreading centre (OSC). The East Pacific Rise (EPR) is a mid ocean ridge lying to the west of Central America. It marks the boundary between the Pacific and Cocos tectonic plates and is a constructive plate boundary or spreading centre where basalt magmas rise to the surface, forming new igneous rock and pushing the older crust away on either side. The OSC comprises two ridge segments, offset by 8km and overlapping by 25km, separated by a 600 metre deep overlap basin. Abandoned ridges and fossil overlap basins surround the OSC. The area shown is 80 x 65km. For more information see Nature, Vol 335, p217-

Uploaded

September 25th, 2018