Amphibolite: Mineral information, data and …
Amphibolite is a gneissose or granofelsic metamorphic rock mainly consisting of green, brown or black amphibole and plagioclase (including albite), which combined form ≥75% of the rock and both of which are present as major …
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Metamorphic history of amphibolite facies metapelites from …
The portion of the Limpopo Belt represents a collage of fragments of crust reworked at different times that is in direct contact with the Kaapvaal craton, the Southern Marginal Zone …
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A tectonic model for the juxtaposition of granulite- and amphibolite …
Il est caractérisé par la juxtaposition tectonique de roches de faciès granulite et de faciès amphibolite. Les gneiss gris migmatitiques, les paragneiss migmatitiques à …
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Metamorphic P-T path and SIMS zircon U-Pb dating of amphibolite …
At outcrop scale (Fig. 2 a-b), amphibolite from the Zhibai slice (ZBA), core part of the NBC, exhibits remnants of a garnet-bearing mafic rock with lathy leucosome crystallized …
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6.4.8: Amphiboles
The photo in Figure 6.86 shows three pieces of massive hornblende. This photo (Figure 6.87) shows an outcrop of metamorphic rock called amphibolite. All the dark mineral grains are hornblende. Many …
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8.7.2: Metamorphosed Mafic Rocks (Metabasites)
Mineralogy (Perkins et al.) 8: Metamorphic Minerals and Metamorphic Rocks 8.7: Metaigneous Rocks and Minerals ... As temperature rises, the zeolite facies gives way to the prehnite-pumpellyite facies, the …
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Partial melting of amphibolite lower crust: A potential …
Most of the magmatic tungsten deposits in the world are genetically associated with highly fractionated granites, which have been generally believed to be derived from melting of …
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Amphibolite
In common usage, the term amphibolite is applied to metamorphosed basic rocks and other hornblende-andesine rocks in the amphibolite facies. According to Miyashiro (1973), such …
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Metamorphism of Mafic Rocks
Metamorphic mafic rocks (e.g. mafic schist or greenschist and mafic gneiss, amphibolite, mafic granulite) are derived from mafic igneous rocks, mainly basalt and andesite, and of lesser …
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8. AMPHIBOLITE AND GRANULITE
By Fritsch et al.'s definition amphibolite should contain more than 40% of amphibole; rocks with less amphibole (40 to 20%) were called leuco-amphibolites. Other varieties of the classification …
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Relative strength of mafic and felsic rocks during amphibolite …
The Lewisian complex, NW Scotland, consists of mafic and felsic rocks that were variably deformed and metamorphosed to granulite and amphibolite facies a number of times …
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Metamorphic Facies
Greenschist, Amphibolite, Granulite Facies Amphibolite →granulite facies ~ 650-700 o C If aqueous fluid, associated pelitic and quartzo-feldspathic rocks (including granitoids) begin to …
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Muscadet Sèvre et Maine sur lie
The prevalence of amphibolite in the soil makes it ideal for producing an elegant and refreshing sur-lie Muscadet, the "Navineaux-Amphibolite". This parcel, unique in its class due to its history, forms a 3-hectare enclosed unit. ... This Muscadet …
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Petrology and geochemistry of amphibolites and …
sub-ophiol itic metamorphic rocks; garn et amphibolite facies passing dow nwards into am phibolit e facies and gree nschist facies with cal cite – marble in ter-layers which exhibi ts decreas-
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2021 Domaine de la Louvetrie (Landron & Fils) …
Average of 89.9 points in 8 community wine reviews on 2021 Domaine de la Louvetrie (Landron & Fils) Muscadet de Sèvre-et-Maine Amphibolite, plus professional notes, label images, wine details, and …
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3.5 Ga old amphibolites from eastern Hebei Province, …
P--T conditions Several attempts have been made to estimate the P--T conditions of the granulite facies metamorphism in this region (Zhang et al., 1981; Auvray, 1983; Wang et al., …
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Amphibolite
Amphibolites are rocks of high crystallinity built mainly of amphibole and plagioclase with or without quartz. You might find these chapters and articles relevant to this topic. Amphibolites …
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Tectono-metamorphic evolution of the Central Bundelkhand …
The TTG from Babina yielded an older isochron age of ca. 3.51 Ga (Sarkar et al., 1996), while the age of emplacement of mafic-ultramafic supracrustal rocks was reported to be …
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DESCRIPTIONS OF THE GARNET LOCALITIES
The amphibolite matrix surrounding garnet porphyroblasts in the orebody has grains typically 1–5 mm across and is made of hornblende, plagioclase, minor biotite, and Opx, …
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Amphibolite
A wine with beautifully spontaneous aromas. Citrusy in character and saline on the finish. This wine is like a young child which, whether happy or angry, lets everything loose at once. …
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Geochemistry of leptyno-amphibolite complex from Haut …
Their occurrence supports the plate tectonic inter- pretation of the leptyno-amphibolite group (Bard et al., 1980) in the Haut Allier region as remnants of a suture zone …
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Constraints from experimental melting of amphibolite on …
Similarly, the starting amphibolite (PC-227) used in the experiments of Adam et al. (2012) has higher SiO 2 and MgO contents than modern MORBs, which would also reduce the …
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Jo Landron
Muscadet vigneron Jo Landron approaches natural viticulture and winemaking with humility and openness. Landron family vineyards are located on the upper slopes of the Sèvre River near Nantes. 43 hectares are dedicated to Melon de …
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Amphibolite Classification, Composition, Formation and Uses
The Amphibolite classification is based on the followingstatements: 1) The modal compositions of amphibolites show that most ofthem contain more than 50% of amphibole, but those with 50 to 30% are notunusual. The content of amphibole and plagioclase together is mostly higherthan … See more
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High magnesian schist, granitic gneiss, amphibolite and …
It exhumed since the middle Miocene orogen-parallel extension and underwent high-grade metamorphism up to amphibolite and granulite facies (Kali et al. 2010). The …
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Metamorphic devolatilization of basalts across the …
The greenschist-amphibolite facies transition zone has attracted particular interest due to its common association with orogenic gold deposits and the proposed link between the …
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Amphibolite
Amphibolite is a common metamorphic rock. It is made of amphiboles (usually hornblende) and plagioclase. Most samples have a relatively simple composition: hornblende + plagioclase. Garnet (almandine), pyroxene, biotite, titanite, …
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Garnet clinopyroxenite formation via amphibole-dehydration …
er et al. (2002) suggest that the transition from amphibole-rich lithologies to garnet clinopyroxenites represents a change from amphibolite to granulite facies …
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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 …
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