peridotite

/per-i-doh-tahyt, puh-rid-uh-tahyt/US // ˈpɛr ɪˌdoʊ taɪt, pəˈrɪd əˌtaɪt //UK // (ˌpɛrɪˈdəʊtaɪt) //

橄榄岩,橄榄石,围岩,橄榄核

Definitions

n.名词 noun

1
- : a coarsely granular igneous rock composed chiefly of olivine with an admixture of various other minerals.

Peridotite and gabbro form much of the eastern peninsula (Banggai).
Into these sediments there are intruded certain peridotite dikes.
Chromite is a common minor constituent of basic igneous rocks of the peridotite and pyroxenite type.
In this locality the original rock is a peridotite, relatively low in nickel, which has been altered to serpentine.
In Georgia the asbestos, which is anthophyllite, occurs in lenticular masses in peridotite associated with gneiss.