Amphibolite: Metamorphic Rock - Pictures, Definition & More
Amphibolite is a coarse-grained metamorphic rock that is composed mainly of green, brown, or black amphibole minerals and plagioclase feldspar. The amphiboles are usually members of the hornblende group.
Amphibolite - Wikipedia
Amphibolite (/ æmˈfɪbəlaɪt /) is a metamorphic rock that contains amphibole, especially hornblende and actinolite, as well as plagioclase feldspar, but with little or no quartz. It is typically dark-colored and dense, with a weakly foliated or schistose (flaky) structure.
Amphibolite Classification, Composition, Formation and Uses
2023年4月23日 · Amphibolite is a coarse-grained metamorphic rock, predominantly composed of mineral amphibole and plagioclase feldspar. It can also contain minor amounts of other metamorphic minerals such as biotite, epidote, garnet, …
Amphibolite - Metamorphic Rocks - Sandatlas
Amphibolite is a common metamorphic rock. It is made of amphiboles (usually hornblende) and plagioclase. Most samples have a relatively simple composition: hornblende + plagioclase .
Amphibolite | Metamorphic, Igneous, Foliated | Britannica
Amphibolite, a rock composed largely or dominantly of minerals of the amphibole group. The term has been applied to rocks of either igneous or metamorphic origin. In igneous rocks, the term hornblendite is more common and restrictive; hornblende is the most common amphibole and is …
Metamorphic Rock Types: Pictures and Descriptions - ThoughtCo
2019年5月10日 · Amphibolite is a rock composed mostly of amphibole minerals. Usually, it's a hornblende schist like this as hornblende is the commonest amphibole. Amphibolite forms when basaltic rock is subjected to higher temperatures between 550 C and 750 C) and slightly greater pressure range than that which yields greenschist.
Amphibolite - Geology 1501 - ECU
Metamorphic Grade. Middle Grade (Middle P – Middle T) Parent Rock. Basalt; Mafic igneous rocks. Metamorphic Environment. Middle grade regional metamorphism along a convergent plate boundary. East Carolina University. Department of Geological Sciences. East 5th Street Greenville, NC 27858-4353 USA.
Metamorphic Rocks | Pictures of Foliated and Non-Foliated Types
Amphibolite is a non-foliated metamorphic rock that forms through recrystallization under conditions of high viscosity and directed pressure. It is composed primarily of hornblende (amphibole) and plagioclase , usually with very little quartz .
3.8: Metamorphic Rocks - Geosciences LibreTexts
amphibolite—a poorly foliated to unfoliated mafic metamorphic rock, usually consisting largely of the common black amphibole known as hornblende, plus plagioclase, plus or minus biotite and possibly other minerals; it usually does not contain any quartz.
Amphibolite - an overview | ScienceDirect Topics
Amphibolites are the most common metamorphic rocks formed by regional metamorphism under high pressure and high temperature (Fig. 7.5). The amphibolites usually occur along with the mica schist and gneiss.