Upper mantle body
An upper mantle body is a geological region where upper mantle rocks outcrop on the surface of the Earth.
Upper mantle outcrops include:
- upper mantle made at constructive plate boundaries, but preserved in ophiolites, for example Isabela ophiolite in the Philippines
- upper mantle above subduction zones, so called suprasubduction ophiolites
- upper mantle exposed by thinning of continental crust by extension to continental crust removal
- upper mantle exposures on earth's surface above sea-water level in Oceans. Examples are Macquarie Island in the Pacific and the St. Peter and St. Paul Islands in the Atlantic.
- upper mantle exposures on earth's surface on the ocean floor. Examples include Gakkel Ridge and Lena Trough.
- upper mantle exposures on earth's surface of disputed origin
- upper mantle exposure on earth's surface of not understood environment