How To Use Amphibolite In A Sentence
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The summits of Grünhorn and Finsteraarhorn are composed of green amphibolite, a very hard rock.
Jungfrau-Aletsch-Bietschhorn, Switzerland
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These porphyries are pierced by greenstone two or three feet thick, and the granites are intersected by numerous veins of amphibolite
Rambles in the Islands of Corsica and Sardinia with Notices of their History, Antiquities, and Present Condition.
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The surroundings are low heavily glaciated PreCambrian gneiss and amphibolite rocks extending some 50 km inland to the ice cap with flanking lateral moraines and ice-dammed lakes; also lakelets, glacial striations, roches moutonées, and perched erratics typical of glaciated landscapes.
Ilulissat Icefjord, Denmark-Greenland
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The rugged, steeply sloping mountains are composed of Precambrian amphibolite and gneiss.
Ecoregions of North Carolina and South Carolina (EPA)
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To further muddy the waters introduce the idea of gas fugacity – given constant P and T, greenschist assemblages can be amphibolite simply by increasing O2 fugacity.
Hansen and Schmidt: Predicting the Past? « Climate Audit
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The gold showings on both the RS and Plateau areas are associated with a deca-metric drag-folded sulfurized "silicate iron formation" / "garnet-rich amphibolite" unit.
Marketwire - Breaking News Releases
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Specific rock names that record both the parent rock and its mineralogy are relatively rare, but include eclogite, blueschist, and amphibolite.
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`I'm running into mica schist and amphibolite, some traces of decomposed shale.
CORMORANT
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These porphyries are pierced by greenstone two or three feet thick, and the granites are intersected by numerous veins of amphibolite
Rambles in the Islands of Corsica and Sardinia with Notices of their History, Antiquities, and Present Condition.
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The Archaean Baidrag complex, composed of tonalitic gneiss, granulite and amphibolite, with minor marble and quartzite, has been interpreted as a microcontinental block.
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Most significant is the presence of the Sinharaja Basic Zone, consisting of hornblende, pyriclasts, basic charnokites, pyroxene amphibolites and scapolite-bearing calc-granulites and blended with small amounts of quartzites, garnet-biotite gneisses and intermediate charnokites.
Sinharaja Forest Reserve, Sri Lanka
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A second textural type of titanite forms anhedral grains with plagioclase and pargasite, which is developed where the retrograde amphibolite-facies assemblage overprints the eclogite mineralogy.
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The thrust sheet overlying the Delaney Dome Formation is composed of the basic Ballyconneely Amphibolite and interbanded quartz diorite and hornblende gneiss that intrude the Dalradian sediments.
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Gneiss and schists containing relatively uniform micas, with important amphibolite inclusions, are the dominant metamorphic rocks.
Jungfrau-Aletsch-Bietschhorn, Switzerland
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The best specimens are afforded by the beautifully developed transparent glassy crystals, found with albite, prehnite and quartz, in a zone of amphibolite and chlorite-schists at Le Bourg d'Oisans in Dauphiné.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon"
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`I'm running into mica schist and amphibolite, some traces of decomposed shale.
CORMORANT
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`I'm running into mica schist and amphibolite, some traces of decomposed shale.
CORMORANT
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The summits of Grünhorn and Finsteraarhorn are composed of green amphibolite, a very hard rock.
Jungfrau-Aletsch-Bietschhorn, Switzerland
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The best specimens are afforded by the beautifully developed transparent glassy crystals, found with albite, prehnite and quartz, in a zone of amphibolite and chlorite-schists at Le Bourg d'Oisans in Dauphiné.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon"
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The sample is weakly banded amphibolite-facies gneiss consisting of quartz, plagioclase, biotite and hornblende.
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The amphibolite xenoliths were from the upper part of lower crust and the lower part of middle crust, bring up to the shallow area of crust .
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However, the local occurrence of poorly graphitized carbonaceous material in amphibolite-facies rocks supports the idea that graphitization is not simply due to increasing temperature and pressure.
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The Moine rocks widely record polyphase deformation and metamorphism up to amphibolite facies.
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_ -- The whole formation is Archean and Primary (with a few modern plutonic outbursts), and chiefly consists of granite, felspar, quartz, gneiss, schists, amphibolite and other Archean rocks, with Primary sandstones and limestones in the basin of Lake Nyasa (a great rift depression), the river Shiré, and the regions within the northern watershed of the Zambezi river.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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`I'm running into mica schist and amphibolite, some traces of decomposed shale.
CORMORANT
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The Orlica-Snieznik Dome and the Góry Sowie Block preserve primarily amphibolite-facies gneisses, migmatites, and mica schists, which locally enclose boudins of granulite and eclogite.
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Of far less importance are occurrences in gneisses and amphibolites, in small plutons derived from syenitic and gabbroic magmas, and in certain contact-metamorphic rocks.
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The amphibolite is mostly medium grained, rather schistose and has a characteristic reddish hue on weathered surfaces.
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Along Grand Lake the rock is a compact amphibolite [3] with a strike
The Long Labrador Trail
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It contains a variety of lithologies including augen gneiss, quartzite, amphibolite, calc-silicate, pelite and marble.
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It grades into a manganese-rich ilmenite that ultimately replaces the spinel phase near the transition to the garnet amphibolite.
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In highly sheared rocks, relics of amphibolite-facies parageneses are lacking and the mylonite is made up of greenschist-facies mineral assemblages.
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The amphibolite, a metamorphosed black volcanic rock, formed from lavas that spilled on the floor of a shallow sea, mixing with layers of mud, sand, and volcanic ash.
Ecoregions of North Carolina and South Carolina (EPA)
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Field observations show that the gabbroperidotite section had already cooled to amphibolite - to greenschist-facies conditions when the dykes intruded.
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A uniform, regionally concordant layer of amphibolite with occasional ultramafic pods, termed the Sta Amphibolite, overlies the Sta Series.
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Lower amphibolite-grade regional metamorphism predating intrusion of the Ballachulish Igneous Complex may have resulted in some monazite growth.
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To further muddy the waters introduce the idea of gas fugacity – given constant P and T, greenschist assemblages can be amphibolite simply by increasing O2 fugacity.
Hansen and Schmidt: Predicting the Past? « Climate Audit
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The prominent basement rocks of the Brumado area are Precambrian in age and consist dominantly of gneisses, schists, and amphibolite.
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Syntectonic intrusion and metamorphism of the cooling Kyzylkain gabbroid bodies proceeded at high chemical activity of water and, practically throughout, were manifested in the production of gabbro-amphibolites regardless of initial body shape and position in the Kempirsay ophiolite structure.
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The Burd Gol melange is also the most highly metamorphosed unit locally containing amphibolite grade staurolite and kyanite schists.
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`I'm running into mica schist and amphibolite, some traces of decomposed shale.
CORMORANT
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The metamorphic facies gradually change from low amphibolite—high green-schist facies of the basement to low green-schist of the cover.
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The best specimens are afforded by the beautifully developed transparent glassy crystals, found with albite, prehnite and quartz, in a zone of amphibolite and chlorite-schists at Le Bourg d'Oisans in Dauphiné.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon"