The enclaves in the mentioned basaltoids represent peridotites, pyroxenites and gabbroid rocks. |
Hess's hypothesis on the serpentinite composition of the lower oceanic crust was confirmed by serpentinite and gabbroid fragments dredged from some fracture zones. |
Unit G is composed of sparsely to moderately porphyritic basalt, with gabbroid xenoliths, plagioclase glomerocrysts and olivine microphenocrysts. |
Pegmatoid and gabbroid layers in Jurassic Preakness and Hook Mountain basalts, Newark Basin, New Jersey. |