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serpentinite

Line breaks: ser¦pent|in¦ite
Pronunciation: /ˈsəːp(ə)ntɪˌnʌɪt
 
/

Definition of serpentinite in English:

noun

[mass noun] Geology
A dark, typically greenish metamorphic rock, consisting largely of serpentine or related minerals, formed when mafic igneous rocks are altered by water.
Example sentences
  • It has also been found in silica-poor igneous rocks, such as syenite, nepheline syenite, serpentinite, and lamprophyre.
  • Compositionally, the turbidites are mostly feldspathic litharenites with trace amounts of serpentinite, anorthosite and mafic volcanic clasts.
  • The resulting rock, called serpentinite, has a much lower density than the original peridotite, thereby increasing the relative buoyancy of the future ophiolite - and with this its chances of obduction.

Origin

1930s: from serpentine + -ite1.

Definition of serpentinite in:

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