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peridotite

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peridotite

Rock consisting largely of the mineral olivine; pyroxene and other minerals may also be present. Peridotite is an ultramafic rock containing less than 45% silica by weight. It is believed to be one of the rock types making up the Earth's upper mantle, and is sometimes brought from the depths to the surface by major movements, or as inclusions in lavas.
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In South Africa, other countries on the continent of Africa, and in Arkansas, diamonds were discovered in a changed peridotite know as "kimberlite.
The Early History of the Diamond by Lynette Tyson / Women's issues/gender studies community
Scientists say peridotite rock can soak up CO2 carbon dioxide at a rate that could help slow global warming, scientists say.
Greenwatch: Rock can soak up CO2 by guardian.co.uk / guardian.co.uk
The notion that rifted continental margins consist of thinned, extended continental crust abutting normal oceanic crust was dispelled years ago, nowhere more emphatically than in studies of the Iberian margin, where serpentinized peridotite was discovered intervening between extended continental crust and oceanic crust.
Imaging, Mapping and Modelling Continental Lithosphere Extension and ... by Hall, Jeremy / Geoscience Canada
 
 
 
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