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peridotite

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
per·i·do·tite  (pr-d-tt, p-rd-)
n.
Any of a group of igneous rocks composed mainly of olivine and various pyroxenes and having a granitelike texture.
peridotite [ˌpɛrɪˈdəʊtaɪt]
n
(Earth Sciences / Minerals) a dark coarse-grained ultrabasic plutonic igneous rock consisting principally of olivine
[from French, from peridot]
peridotitic  [ˌpɛrɪdəʊˈtɪtɪk] adj
peridotite  (pr-d-tt, p-rd-)
A coarse-grained igneous rock that consists mainly of olivine and pyroxene. It is believed to be one of the main constituent rocks of the Earth's mantle.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.peridotite - a dark coarse-grained igneous rock consisting principally of olivine
igneous rock - rock formed by the solidification of molten magma
kimberlite - a rare type of peridotite that sometimes contains diamonds; found in South Africa and Siberia
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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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