एम्फीबोलाइट इसके अंग्रेजी अर्थ का उदाहरण

The original 20–30 m thick Homestake Formation, has been deformed and metamorphosed, resulting in upper greenschist facies of siderite-phyllite, and lower amphibolite facies of grunerite schists.

The rock is mainly gneisses, granulites, migmatites, amphibolites and banded iron formation, intruded by basis and ultra-basic bodies.

They are charnockite, hornblende gneiss, migmaititic amphibolite, quartz biotite gneiss, quartz-feldspathic gneiss, biotite granite gneiss, and pegmatite.

Among the rock types charnockite, hornblende gneiss, migmatitic amphibolite, quartz biotite gneiss, quartz-feldspathic gneiss, and biotite granite gneiss have been identified that belong to the Peninsular Gneissic Complex.

BIF is another important rock type occurring in close association with the metapyroxinite and amphibolites.

The metapelites are of granulite facies and the ultramafics are of greenschist facies and the enclosing gneisses represent amphibolites facies.

S1 schistosity is defined by hornblende and chlorite, and this mineralogical association suggests that the deformation occurred under upper greenschist to lower amphibolite facies conditions.

Pothupadi Prospect: A sample of vein quartz traversing amphibolite assayed 4 g/t gold.

The rocks have experienced multiple metamorphic events at amphibolite or granulite conditions, resulting in often complete destruction of original igneous or sedimentary (protolith) textures.

The rock exhibits variable intensity of metamorphic banding which may include grain size variations, and has a high degree of deformation around the margins, and preserves an amphibolite facies metamorphic assemblage.

The gneiss is heavily banded by layers of amphibolite-K-feldspar-quartz of varying grainsize, plus networks of pegmatite veins.