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Peridotites and other ultramafic rocks
Geology TodayPeridotites are a group within the category of ultramafic rocks. These are usually dark‐coloured rocks rich in magnesium, poor in silica and lacking feldspars. Earth's mantle, which makes up 83 percent by volume and 67 percent by weight of the planet, consists largely of peridotite, which, although relatively sparse at the surface, therefore, is Earth ...
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Anhydrous melting of peridotite at 0–15 Kb pressure and the genesis of tholeiitic basalts
, 1980A. Jaques, David H. Green
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