Definition of harzburgite in English:
harzburgite
noun ˈhɑːtsbəːˌɡʌɪtˈhärtsbərˌɡīt
mass nounGeology A plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine.
Example sentencesExamples
- The peridotite is dominantly serpentinized harzburgite, ranging from fresh to 70% altered, with minor pyroxenite, dunite and chromite pods.
- 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.
- The lowermost rocks are serpentinized dunite and harzburgite, which are best exposed in the NE of the ophiolite.
- In the Herbeira massif the same harzburgite dominates the east side of the Trans-Herbeira Fault, but in its western outcrop it is only present at the cliffbase in the NW and SW corners.
- We have mapped the entire Spontang ophiolite region where we recognize a complete upper mantle sequence of harzburgite and crustal gabbroic, sheeted dykes and pillow lava succession.
Origin
Late 19th century: from Harzburg, the name of a town in Germany, + -ite1.