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Pyroxenite is an ultramafic igneous rock consisting essentially of minerals of the pyroxene group, such as augite, diopside, hypersthene, bronzite or enstatite...

phlogopite. The UG2 chromitites are underlain by pyroxenite footwall that is distinct from hanging wall pyroxenite. Chromite subhedral to subrounded (less than...

are also found in pentlandite extracted from Sudbury, Ontario, and in pyroxenite deposits in South Africa. Ruthenium, a polyvalent hard white metal, is...

crystalline. Gabbro Diorite Granodiorite Tonalite Syenite Granite Peridotite Pyroxenite Pegmatite Porphyritic Monroe, James Stewart; Wicander, Reed; Hazlett,...

contains harzburgite and dunite, as well as layers of spinel pyroxenite, garnet pyroxenite, and hornblendite. The layers represent partial melts extracted...

Rao, B; Parthasarathy, R; Kumar, Anil; Gopalan, K (1994). "2.0 Ga old pyroxenite-carbonatite complex of Hogenakal, Tamil Nadu, South India". Precambrian...

layered intrusions, associated with cumulate layers of wehrlite, olivine pyroxenite, harzburgite, and even chromitite (a cumulate rock consisting largely...

rock with large grained crystals in a fine matrix Pumice – Volcanic rock Pyroxenite – Igneous rock - a coarse grained plutonic rock composed of >90% pyroxene...

the USGS geological party in the Pensacola Mountains, 1978-79, from the pyroxenite rock which forms a conspicuous dark layer along the cliffs of the promontory...

rock in which the fraction of pyroxenes exceeds 60% are classified as pyroxenites rather than peridotites. Pyroxenes are typically dark in color. Hornblende...

A sample of pyroxenite (meteorite ALH84001 from Mars), a rock consisting mostly of pyroxene minerals...

Websterite is ultramafic igneous rock, a type of pyroxenite that has less than 5% olivine and roughly equal proportions of orthopyroxene and clinopyroxene...

melts that produce basaltic magma probably include both peridotite and pyroxenite. The shape, structure and texture of a basalt is diagnostic of how and...

Kosvinsky Rock as "mountain massif" of height 1,519 m. Its constitution is pyroxenites and dunites of lower and middle Paleozoic era. The slopes are covered...

ultramafics and mafic rocks (Ultramafic and mafic rocks represented by meta pyroxenite, talc-tremolite-actinolite schist, and amphibolites) of varying dimensions...

granulite facies conditions. Uralite is a particular hydrothermally altered pyroxenite; during autogenic hydrothermal circulation the primary mineralogy of pyroxene...

a volcano at Ještěd-Kozákov Ridge in the Czech western Sudetes. These pyroxenite xenoliths arrived to surface from approximate depths of 35, 70 and 73 km...

Foskor's Mining Division in Phalaborwa mines phosphate rock (foskorite and pyroxenite), from which Foskor's Acid Division in Richards Bay produces phosphoric...

77 mi2); surrounded by diopside–scapolite–feldspar calc-granulites. The pyroxenite outcrops are dark and massive and include discontinuous calc-silicate...

the 48th Edition of the Handbook of Chemistry and Physics on page E-4. Pyroxenite 4.3 ± 0.1 List: Birch and Clark in Robertson, page 31. 300 This summary...

range of exotic inclusions: gabbro from Ehrsberg, serpentinites and pyroxenites near Todtmoos, norite near Horbach), which are possibly the remnants...

500 km along a SSW/NNE oriented graben. It consists of peridotites, pyroxenites, norites and bands of chromitite. The oldest supracrustal rocks are the...

derived from them. It also occurs in some crystalline schist. Bronzitite, a pyroxenite of bronzite composition, is noted in the cumulate rocks of the Stillwater...

lamprophyres, phonolite, foyaite, shonkinite, silica undersaturated foid-bearing pyroxenite (essexite), and nepheline syenite. Carbonatites are typically associated...

are also found in pentlandite extracted from Sudbury, Ontario, and in pyroxenite deposits in South Africa. The industrial extraction of rhodium is complex...

addition, there is commonly a layer overlying both composed of feldspathic pyroxenite. Chromitite layers occur commonly in large mafic layered intrusions. A...

at the contact between felsic and mafic or ultramafic rocks such as pyroxenites and dunites. It also occurs in carbonatites and metamorphosed magnesium-rich...

Flow banding at the rim of a peridotite intrusion. Dark and green pyroxenite bands at the bottom represent the melt, brownish lherzolite bands at the top...

dominantly basaltic and basanitic volcanic products are rich in peridotite and pyroxenite xenoliths and megacrysts. The youngest volcanoes rest on Neolithic terraces...

within clinopyroxene (diopside) crystals in an ultra high pressure garnet pyroxenite body. The host rock is part of the Kokchetav Massif in Kazakhstan. Keatite...

and ilmenite exsolution texture in clinopyroxenes from Hujialing garnet-pyroxenite, Su-Lu UHP terrane, Central China: a geodynamic implication". European...

minerals found in this region are dolomite, limestone, gabbro, quartzite, pyroxenite, manganese and iron ores and metabasalt. The Proterozoic non-fossiliferous...

Obsidian Pegmatite Peridotite Phonolite Phonotephrite Porphyry Pumice Pyroxenite Websterite Quartz diorite Quartz monzonite Quartzolite Rhyodacite Rhyolite...

Ultramafic Sequence of dunites, harzburgites, olivine bronzitites, and pyroxenites together with narrow layers of chromitite that constitute the bases of...

Lake Superior at 49.10.00 N 089.36.00 W. The complex includes gabbro, pyroxenite, gabbronorite and websterite intrusive into granitic gneiss country rock...

En90Fs10 in composition, is an essential mineral in typical peridotite and pyroxenite of the Earth's mantle. Xenoliths of peridotite are common in kimberlite...

mantle, starting from garnet pyroxenite and peridotite and leaving phlogopite as residual phase when starting from pyroxenite. Petrology indicates that a...

consist of gneiss and other metamorphic rocks, as well as ijolites, pyroxenites, and urtites. The carbonatite lavas are rapidly chemically modified by...

xenoliths of hypersthene gabbro, augite peridotite, enstatite peridotite and pyroxenite occurring as rounded fragments and boulders embedded in the monchiquite...

and elsewhere in the western Deccan and contain spinel lherzolite and pyroxenite constituents. While the Deccan traps have been categorized in many different...

consists of serpentinized harzburgite and dunite with crosscutting veins of pyroxenite. Intrusive rocks of the Fidalgo ophiolite are exposed in the Anacortes...

A sample of peridotite with a layer of blackish pyroxenite...

manganese, and less often with sodium, potassium, zirconium, and fluorine. pyroxenite A coarse-grained, holocrystalline igneous rock consisting mainly of pyroxenes...

of the Great Meteor hotspot track. Its igneous rock consists mostly of pyroxenite and gabbro. Parc du Mont-Saint-Bruno IRDA experimental orchard "Topographic...

mineral orthopyroxene, the orthorhombic version of pyroxene and a type of pyroxenite. It can have up to a few percent of olivine and clinopyroxene. Orthopyroxenites...

more than 90% of the rock composition (for example: peridotites and pyroxenites). Instead, an alternate triangle plot diagram is used (see Streckeisen...

The eclogite melt may then react with enclosing peridotite to produce pyroxenite, which in turn melts to produce basalt. Occurrences exist in western North...

ultramafic-mafic intrusive complex consists of ultramafic peridotites and pyroxenites with associated chromitite layers toward the base with more mafic norites...

ultramafic intrusions within the Nikolai Formation, deposited as gabbro, pyroxenite and dunite as the Kluane mafic-ultramafic complex. During the Triassic...

diorite, or as a migmatite, and most recently as a mafic unit of gabbro and pyroxenite with local foliation and mylonitic textures structurally underlies the...

adjacent to melt conduits: gradients in mineral composition adjacent to pyroxenite dikes may preserve evidence of the process. Modal metasomatism may result...

crystals are very brittle. It was first described in 1965 in the Afrikanda pyroxenite massif, a formation on Russia's Kola Peninsula and was named for Nikolai...

Konzhakovskiy as "mountain massif" of height 1,569 m. Its constitution is pyroxenites and dunites of lower and middle Paleozoic era. The slopes are covered...

Mg-Al-spinel and Ca-Tschermak-rich clinopyroxene in corundum-bearing mantle pyroxenites. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical...

chilled fine grained gabbro overlain by gabbro, norite and feldspar pyroxenites. Thickness up to 700 feet (210 m). The Ultramafic series is composed...

rocks. These take the form of layered pyroxenite and dunite; layered dunite and harzburgite; and layered pyroxenite, peridotite and gabbro. The layering...

crystallized. The ultramafic intrusives include the dunites, peridotites and pyroxenites. Other rare varieties include troctolite which has a greater percentage...

of over 6 km (3.7 mi). Rock types include picrite, peridotite, dunite, pyroxenite, gabbro and granophyre. A feeder dike of olivine gabbro is exposed "below"...

subordinate amounts of olivine gabbro, norite, anorthositic gabbro, and pyroxenite. Igneous minerals and textures are well preserved in some rocks, and other...

end of Cappadocian region, Turkey: Melting evidence from peridotite and pyroxenite source domains". Geochemistry. 82 125838: 3. doi:10.1016/j.chemer.2021...

clinopyroxene. The erupted rocks also contain xenoliths such as lherzolite, pyroxenite and wehrlite. The magmas erupted in the Big Pine volcanic field were generated...

considerable magnetite and hydrogen are produced. When the protolith is pyroxenite, which contains more pyroxene than olivine, iron-rich talc is produced...

these nuggets can be traced to ultramafic facies composed primarily of pyroxenites, peridotite and serpentine, and tremolite and soapstone. In solution...

Peninsula and from Meagher County, Montana, US. It occurs in pegmatites in a pyroxenite intrusion as crystals in miarolitic cavities. It occurs associated with...

lapilli). Outcrops of plutonic rocks (for example, syenites, gabbros and pyroxenites) that formed deep below the surface occur on Fuerteventura, La Gomera...

Hirschmann, M. M.; Stolper, E. M. (1996). "A possible role for garnet pyroxenite in the origin of the "garnet signature" in MORB". Contributions to Mineralogy...

valuable apatite vein deposits. They lie in basic rocks such as gabbro and pyroxenite, and these in the neighborhood of the veins have been extensively scapolitized...

Layers of spinel-lherzolites with anhydrous Al-diopside pyroxenites and hydrous Cr-diopside pyroxenites can be found on the island.[citation needed] Pliny...

Neoproterozoic Era. The mountain itself is mainly made up of amphibolite, pyroxenites and gabbro, and contains deposits of bauxite. Historically, the region...

"Nixonite, Na2Ti6O13, a new mineral from a metasomatized mantle garnet pyroxenite from the western Rae Craton, Darby kimberlite field, Canada". American...

1000 and 2000 nm. Most pyroxenes in Mars are calcium depleted (dunite, pyroxenite) which slightly shifts the absorption features towards shorter wavelengths...

presents a pseudostratigraphy with the following lithologies; peridotite, pyroxenite, gabbro, sheeted dykes of diabase, pillow lava and sedimentary rock. Anma...

that produced mafic volcanism. A layered intrusion composed of diorite, pyroxenite, gabbro and anorthositic gabbro has been found in northwestern Strathy...

of Terrestrial Magnetism, Carnegie Institution of Washington Stressed Pyroxenite Nodules from the Jagersfontein Kimberlite Archived 2018-07-01 at the Wayback...

mountain is steep, rocky and covered with boulder-like collapses of gabbro, pyroxenites and other rocks composing the massif. The Gusevy mountains are the foothills...

diorite, or as a migmatite, and most recently as a mafic unit of gabbro and pyroxenite with local foliation and mylonitic textures structurally underlies the...

belt is slightly different, with amphibolite-bearing quartzite, residual pyroxenite in amphibolites and small amounts of dunite. In the northwest of the country...

Chester, VT 3.194 6.61 — 7.20 7.54 Dunite Webster, NC 3.244 7.0 — 7.59 7.78 Pyroxenite Sonoma Co., CA 3.247 6.8 — 7.79 8.01 Dunite Mt. Dun, New Zealand 3.258...

mostly spinel lherzolite, with the final 20% harzburgites, dunites, and pyroxenites. The San Quintín field is also the only source of peridotitic and granulitic...

charnockites, with some pyroxene granulites, granites, khondalites, pyroxenites and dolerites. The fort was built in 1360 CE by Anna Vemareddy of the...

granulite, garnet and spinel peridotite, phlogopite, phlogopitite and pyroxenite. These xenoliths have interacted with melts and testify to the presence...

its small native range which currently is only a few acres, it grows in pyroxenite soil atop an ancient volcano. Its elevation range is 580–1,065 metres...

breccias, with lapilli, leucocratic and ultramafic projectiles, biotitic pyroxenites, xenoliths of leucitic lava and substrate (Middle Pleistocene clays,...

of basanite, basaltic-trachyandesite, trachyandesite, syenite, gabbro, pyroxenite, and hornblendite, as well as fragments of Otago Schist and Cenozoic sedimentary...

Syndicate. Within three days they succeeded in determining platinum in a pyroxenite and associated ultrabasic rocks on the farms Mooihoek and Maandagshoek...

Verte on the island of New Foundland. It is composed of volcanic rocks, pyroxenite and gabbro. The eastern and western ends are located in a sedimentary...

composed of ultramafic layered igneous rocks, typically diorite, gabbro and pyroxenite. The complex intrudes Late Ordovician Mount Arthur Group, Ellis Group...

petrology of titanium deposits in Virginia, and comparison of peridotite and pyroxenite with ultramafic nodules in basalts. Ross's contributions to clay mineralogy...

surface at the Ivrea zone. Some geologists think the boundary between pyroxenites and lherzolites, that is also found in outcrops in the Ivrea zone, represents...

ultrabasic compositions, including anorthosite, norite, olivine gabbro, pyroxenite, amphibolite, and peridotite, each hosting minerals such as plagioclase...

dunite, eclogite, garnet, harzburgite, lherzolite, peridotite, phlogopite, pyroxenite, spinel and wehrlites. The composition of these xenoliths indicates that...

dunite, garnet, garnet peridotite, orthopyroxene, phlogopite, garnet pyroxenite, lherzolite and spinel have been described. The most common ones are dunite...

metamorphosed to granulite facies. The formation also has local occurrences of pyroxenite and hornblendite. Further east, the recumbent folds of the Marampa Group...

rarer trachyandesite and trachybasalt. Xenoliths include peridotite and pyroxenite, and amphibole and feldspar form megacrysts in the rocks. Xenoliths appear...

Basalts are produced by high-degree melting of recycled oceanic crust with pyroxenite lithologies within an inhomogeneous plume head, and pooling and eruption...

garnet hornblendite, amphibole-containing peridotite, olivine and spinel pyroxenite, and websterite. In general, the composition resembles that of other Sudanese-Egyptian...

lherzolite, harzburgite, wehrlite, dunite, websterite and garnet composed pyroxenite. The highest and lowest temperatures recorded by mantle xenoliths increase...

and magnetite. The parent rock of this banded variety most likely was a pyroxenite enclosing cumulate layers of dunite. With increasing serpentinization...

seamount includes intrusive rocks such as gabbro, metadolerite, picrite and pyroxenite; the gabbros appear to originate from slow crystallization of basaltic...

of a rare form of pyroxene called fassaite. This makes it more like a pyroxenite than the typical angrite, which is similar to a basalt. The only other...

evidenced by an ophiolite assemblage that includes ultramafic rocks, pyroxenite, gabbro, chert and pillow lava. Pan-African age rocks may have formed...

(link) Porreca, Courtney; Selverstone, Jane; Samuels, Kimberly (2006). "Pyroxenite xenoliths from the Rio Puerco volcanic field, New Mexico: Melt metasomatism...

Mocksville Complex consist of metamorphosed/unmetamorphosed gabbros, pyroxenites, hornblendites, wehrlites, granites, and diorites. The plutons in this...

Cyprus, consists of a pseudostratiform mass of harzburgite, dunite, pyroxenite, gabbro, quartz diorite, diabase and pillow lava arranged in a dome-like...

that the richer deposits of nickel were the result of long weathering of pyroxenite or peridotite during a complex physiographic history and that serpentinite...

granites, charnockites, eclogites, metabasalts, calc-silicate rocks and pyroxenites. In northwestern Benin, gold is mineralized in conglomerates of quartzite...

consider developing mining projects. Also, peridotites associated with pyroxenites, with rare olivine and spinel, are exposed on the island. The first recorded...

deep-reaching faults. The lherzolites are associated with amphibolites, pyroxenites, and amphibole-bearing peridotites. All these mantle rocks are arranged...

at Mount Waesche olivine, plagioclase and titanaugite. Granulite and pyroxenite xenoliths have also been found. Despite their proximity, Mount Sidley...

andesitic–dacitic melts that escape upwards. A residual forms composed from garnet pyroxenite at a depth of 50 kilometres (31 mi). This residual is denser than the...

center of the Tuarkyr elevation. Together with gabbro, serpentinized pyroxenite and diabase and numerous radiolarian fossils, they form an ophiolite mélange...

amphibolites, which includes dunite, harzburgite, lherzolite, wehrlite, pyroxenite and abbro giving outcrop over large areas. Kop Mountain is one of Turkey's...

garnet-cordierite-sillimanite and hornblende gneisses, migmatites, and older granites, pyroxenites, and hornblendites. East of Gold Butte, these Proterozoic medium-to high-grade...

less commonly clinopyroxenite, dunite, harzburgite, lherzolite, norite, pyroxenite, and websterite have been reported as xenoliths. The early volcanic rocks...

grow tonalite and granodiorite corona-bearing dikes. The East hill grew pyroxenites, gabbro amphibolites and other diorites. Mineral boundaries are sharp...

fenite and syenite. Minerals found associated with these rocks include: pyroxenites, amphibole, apatite, biotite, calcite, magnetite, monazite, nepheline...

Transvaal Supergroup and the Rooiberg group. Numerous rock types, such as pyroxenites, gabbronorites, anorthosites, and chromitites, make up the BIC. These...

grow tonalite and granodiorite corona-bearing dikes. The East hill grew pyroxenites, gabbro amphibolites and other diorites. Mineral boundaries are sharp...

top of the oceanic crust (Gabbro), through the deeper crustal layers (Pyroxenite, Wehrlite and Dunite), down below the 'Moho' discontinuity, to the Harzburgite...

consists of deformed magmatic rocks. The north is dominated by gabbro, pyroxenite, troctolite and amphibolite. The south has granite, pegmatite and migmatite...