Melt extraction from the mantle beneath mid-ocean ridges. From: Oceanus | Date: March 22, 1998| Author: | COPYRIGHT 1998 Woods Hole Oceanographic Institution. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information) Copyright information

A study was conducted to investigate one of several types of melt extraction feature which ranged from fractures filled with melt-crystallized minerals to rocks composed only of the mineral olivine. These melt extraction feature types were observed in the mantle section of an ophiolite located in Oman. The research focused on replacive dunites (rocks composed only of olivine) which exhibited a deformation pattern that is sub-parallel to the paleo-seafloor.

As the oceanic plates move apart at mid-ocean ridges, rocks from Earth's mantle, far below, rise to fill the void, mostly via slow ...

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