| 释义 |
Definition of serpentinite in English: serpentinitenoun ˈsəːp(ə)ntɪˌnʌɪt-ˈtī- mass nounGeology A dark, typically greenish metamorphic rock, consisting largely of serpentine or related minerals, formed when mafic igneous rocks are altered by water. 〔地质〕蛇纹岩 Example sentencesExamples - It has also been found in silica-poor igneous rocks, such as syenite, nepheline syenite, serpentinite, and lamprophyre.
- 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.
- These rocks are ultramafic and include serpentinite, harzburgite, diallage, and rodingite.
- Compositionally, the turbidites are mostly feldspathic litharenites with trace amounts of serpentinite, anorthosite and mafic volcanic clasts.
- The Selcuk nappe contains blocks of metagabbro in a matrix of serpentinite and garnet-mica schist.
Origin1930s: from serpentine + -ite1. Definition of serpentinite in US English: serpentinitenoun-ˈtī- Geology A dark, typically greenish metamorphic rock, consisting largely of serpentine or related minerals, formed when mafic igneous rocks are altered by water. 〔地质〕蛇纹岩 Example sentencesExamples - 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.
- These rocks are ultramafic and include serpentinite, harzburgite, diallage, and rodingite.
- The Selcuk nappe contains blocks of metagabbro in a matrix of serpentinite and garnet-mica schist.
- 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.
Origin1930s: from serpentine + -ite. |