The first group consists mostly of melagabbro, perkinite and pyroxenite. |
Furthermore, many of the clasts within the matrix consisted of metamorphic rocks including green slate, pyroxenite, metaperidotite, metadolerite, and amphibolite. |
Subsequent melting of mica pyroxenite may produce potassic magmas as a result of orogenic or extensional, thermal or bark triggers. |
Its lower part displays alternating bands of peridotite, pyroxenite, and dunite, but dunite is dominant throughout most of the unit. |
In similar contrast to the Okenyenya xenolith suite, lithologies such as wehrlite, eclogite and pyroxenite are also absent. |
Chromite is a common minor constituent of basic igneous rocks of the peridotite and pyroxenite type. |