Definition of dunite in English:

dunite

nounˈdʌnʌɪtˈdənīt

mass nounGeology

A green to brownish coarse-grained igneous rock consisting largely of olivine.
〔地质〕纯橄榄岩
Example sentencesExamples
- In the field, the boundary between crustal units and mantle units is marked by a zone of sheared serpentinite, which overlies more massive largely serpentinized, harzburgite and dunite.
- Its lower part displays alternating bands of peridotite, pyroxenite, and dunite, but dunite is dominant throughout most (and especially the upper part) of the unit.
- It comprises massive websterites and clinopyroxenites, usually interlayered with relatively subordinate dunite.
- The lowermost rocks are serpentinized dunite and harzburgite, which are best exposed in the NE of the ophiolite.
- Stratigraphically from bottom to top it is composed of sheared serpentinite on the basal thrust, layered harzburgitedunite, layered dunite with chromitite, and harzburgite with finegrained gabbro.

Origin

Mid 19th century: from the name of Dun Mountain, New Zealand, + -ite¹.

Definition of dunite in US English:

dunite

nounˈdənīt

Geology

A green to brownish coarse-grained igneous rock consisting largely of olivine.
〔地质〕纯橄榄岩
Example sentencesExamples
- Stratigraphically from bottom to top it is composed of sheared serpentinite on the basal thrust, layered harzburgitedunite, layered dunite with chromitite, and harzburgite with finegrained gabbro.
- In the field, the boundary between crustal units and mantle units is marked by a zone of sheared serpentinite, which overlies more massive largely serpentinized, harzburgite and dunite.
- It comprises massive websterites and clinopyroxenites, usually interlayered with relatively subordinate dunite.
- The lowermost rocks are serpentinized dunite and harzburgite, which are best exposed in the NE of the ophiolite.
- Its lower part displays alternating bands of peridotite, pyroxenite, and dunite, but dunite is dominant throughout most (and especially the upper part) of the unit.

Origin

Mid 19th century: from the name of Dun Mountain, New Zealand, + -ite.

词汇	dunite
释义	Definition of dunite in English: dunite nounˈdʌnʌɪtˈdənīt mass nounGeology A green to brownish coarse-grained igneous rock consisting largely of olivine. 〔地质〕纯橄榄岩 Example sentencesExamples In the field, the boundary between crustal units and mantle units is marked by a zone of sheared serpentinite, which overlies more massive largely serpentinized, harzburgite and dunite. Its lower part displays alternating bands of peridotite, pyroxenite, and dunite, but dunite is dominant throughout most (and especially the upper part) of the unit. It comprises massive websterites and clinopyroxenites, usually interlayered with relatively subordinate dunite. The lowermost rocks are serpentinized dunite and harzburgite, which are best exposed in the NE of the ophiolite. Stratigraphically from bottom to top it is composed of sheared serpentinite on the basal thrust, layered harzburgitedunite, layered dunite with chromitite, and harzburgite with finegrained gabbro. Origin Mid 19th century: from the name of Dun Mountain, New Zealand, + -ite¹. Definition of dunite in US English: dunite nounˈdənīt Geology A green to brownish coarse-grained igneous rock consisting largely of olivine. 〔地质〕纯橄榄岩 Example sentencesExamples Stratigraphically from bottom to top it is composed of sheared serpentinite on the basal thrust, layered harzburgitedunite, layered dunite with chromitite, and harzburgite with finegrained gabbro. In the field, the boundary between crustal units and mantle units is marked by a zone of sheared serpentinite, which overlies more massive largely serpentinized, harzburgite and dunite. It comprises massive websterites and clinopyroxenites, usually interlayered with relatively subordinate dunite. The lowermost rocks are serpentinized dunite and harzburgite, which are best exposed in the NE of the ophiolite. Its lower part displays alternating bands of peridotite, pyroxenite, and dunite, but dunite is dominant throughout most (and especially the upper part) of the unit. Origin Mid 19th century: from the name of Dun Mountain, New Zealand, + -ite.
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