Metagabbro is defined as a dominant lithology found in certain massifs, consisting of plagioclase-clinopyroxene, orthopyroxene, large garnet porphyroblasts, and brown amphibole. It is a rock …

Gabbro is a coarse-grained (phaneritic) igneous rock that is relatively low in silica and rich in iron, magnesium, and calcium. Such rock is described as mafic. Gabbro is composed of pyroxene …

2021年4月12日 · In this paper we use major, trace and rare earth composition data from these diverse basic metamorphic rocks in an effort to identify the original geodynamic setting of …

2022年4月28日 · In this paper, we investigate the interplay between metamorphic conditions and aggregate functionality of metamorphosed gabbroic rocks (including dolerites) along the same …

Situated in the middle of a large metagabbro body, the Humphrey Mountain occurrence is one of the best exposures of megacrystic garnet amphibolite in the region. Although the garnets are …

2020年11月11日 · Metagabbro consists of a texturally complex mineral assemblage, including relict igneous clinopyroxene, HP/LT metamorphic minerals (lawsonite + omphacite ± garnet ± …

2024年8月23日 · Metapyroxenite is classified as websterite and olivine websterite and is mainly composed of altered clinopyroxene and serpentine, with fresh relicts of olivine, clinopyroxene …

2006年6月1日 · The origin of one of the metagabbro masses (the Seba metagabbro) is reexamined by: (i) geological (chemico-structural) study focusing on the relationship between …

2017年4月4日 · Igneous zircon occurs together with baddeleyite in coarse-grained olivine-free facies of the gabbro. Metamorphic polycrystalline zircon rims on baddeleyite and minute (<5 …

2014年12月1日 · In this contribution, we conducted a geochronological and geochemical study on a metagabbro and charnockite suite from the Yinshan block in the Western Block of the NCC, …