pentlandite in troctolitic

Contrasts between platinum group element contents and ...

These textures and the sulfide assemblage (pyrrhotite, pentlandite and chalcopyrite) are similar to the sulfide mineralization in troctolitic series rocks. However, the sulfide assemblage is ...

Define pentlandite | Dictionary and Thesaurus

Pentlandite is found within the lower margins of mineralised ultramafic to mafic layered intrusions, the prime example being the Bushveld igneous complex, South Africa, the Voiseys Bay troctolite intrusive complex in Canada, the Duluth gabbro, in North America, and various other localities throughout the world. In these locations it forms an important nickel ore.

Pentlandite - Revolvy

Pentlandite is found within the lower margins of mineralised layered intrusions, the best examples being the Bushveld igneous complex, South Africa, the Voiseys Bay troctolite intrusive complex in Canada, the Duluth gabbro, in North America, and various other localities throughout the world.

THE PETROLOGY AND SULFIDE MINERALIZATION OF …

The Partridge River troctolite, a basal intrusive body of the Duluth Complex, is located in the Ely-Hoyt Lakes region of northeastern Minnesota. The upper part of this body is a sequence of ...

Mineral Commodities of - nr.gov.nl.ca

troctolitic Voisey's Bay intrusion, an early member of the Mesoproterozoic Nain Plutonic Suite (Figure 1). The Voisey's Bay intrusion consists of three segments that are linked (Figure 2a, b). In the east, the Eastern Deeps subchamber is a 2 x 1 km troctolite body hav-ing a maximum depth extent of over 1000 m. In the west, scattered enclaves of gabbro and troc-tolite within younger ...

Nickel 2006 - Deposit Descriptions - PorterGeo

The Duluth Complex comprises the Anorthositic-, the Troctolitic- and the late stage Felsic-Series. Field relations indicate that the Anorthositic Series, which is in the upper part of the Duluth Complex, is older than the Troctolitic Series that forms the lower two thirds of the Complex, although identical age dates of 1099 Ma for both series suggests rapid intrusion. The Felsic Series and ...

Pentlandite - chemeurope.com

Pentlandite is found within the lower margins of mineralised ultramafic to mafic layered intrusions, the prime example being the Bushveld igneous complex, South Africa, the Voiseys Bay troctolite intrusive complex in Canada, the Duluth gabbro, in North America, and various other localities throughout the world. In these locations it forms an important nickel ore.

Major Mines & Projects | Voisey's Bay Mine

The pentlandite is coarse grained and often forms coarse "loop textures" rimming large crystals of pyrrhotite. The pentlandite is frequently associated with magnetite, which is dispersed throughout the sulphide minerals. Magnetite can occur in local concentrations, ranging from less than 5 per cent to as high as 30 per cent.

Magnetite-hosted Cu-PGE and Fe-sulfide mineralization in ...

Oriented drill core reveals that the troctolite layers strike approximately NW and dip between 20 and 30° to the SE, similar to the strike and dip of the layered troctolite in the Bell Rock Range, which outcrops 10 …

Magma evolution and PGE mineralization in the Late ...

ivine-bearing gabbroic, gabbroic, and troctolitic rocks are also common, whereas anorthositic rocks are rare, and dioritic rocks occur only as thin bands in the drill core.

Pentlandite in German - English-German Dictionary - Glosbe

Example sentences with "pentlandite", translation memory add example en Relatively pure samples of pyrite, pyrrhotite and pentlandite were obtained, but violarite could only be upgraded to a 40–50% mixture with pyrite.

Pentlandite - ipfs.io

Pentlandite is an iron-nickel sulfide, (Fe,Ni) 9 S 8. Pentlandite has a narrow variation range in Ni:Fe but it is usually described as having a Ni:Fe of 1:1. It also contains minor It also contains minor cobalt, usually at low levels as a fraction of weight.

Arsenic-rich Cu-Ni-PGE mineralization in Wetlegs, Duluth ...

The magmatic Cu-Ni ± PGE (platinum group elements) sulfide deposit Wetlegs within the troctolitic Partridge River intrusion (PRI) of the 1.1 Ga Duluth Complex (northeastern Minnesota) contains disseminated low-grade Cu-Ni sulfide minerals distributed along its heterogeneous base.

Volcanogenic Massive Sulfide (VMS) Deposits - GeoConsult

Volcanogenic massive sulfide (VMS) deposits are associated with bimodal volcanism in subaqueous rift-related environments. The felsic - mafic succession of volcanic rocks are hosts to semi-massive and massive sulfides (Cu-Zn-Pb) some of which contain precious metals (Au and Ag).

Contrasts between platinum group element contents and ...

chalcopyrite, cubanite and pentlandite are found in the troctolitic series rocks (Bonnichsen, 1972; Weiblen and Morey, 1976, Bonnichsen et al., 1980, Foose and Weiblen, 1986). An undeveloped resource of over 4 billion metric tons of mineralized rock ...

Pentlandite - revolvy.com

Pentlandite in pyrrhotite, ore specimen from the Sudbury Basin (field of view 3.4 cm) Pentlandite is an iron - nickel sulfide, ( Fe, Ni ) S . Pentlandite has a narrow variation range in Ni:Fe but it is usually described as having a Ni:Fe of 1:1. It also contains minor cobalt, usually at low levels as a fraction of weight. Pentlandite forms ...

FURTHER INTERPRETATTON OF THE Gu-Fe-Ni SULFTDE ...

In the two suites, both dominated by troctolite, the sulfides are mineralogically similar (predominantly pyr- rhotite, pentlandite, chalcopyrite, cubanite) and also tex-

Duluth Complex and NorthMet Deposit | PolyMet Mining

Geology and Mineralogy Located in the Partridge River Intrusion of the Duluth Complex, the NorthMet deposit is a large disseminated sulfide deposit in heterogeneous troctolitic rocks associated with the 1.1 billion-year-old Mid-Continent Rift.

Pentlandite | Wiki | Everipedia

Pentlandite is found within the lower margins of mineralised layered intrusions, the best examples being the Bushveld igneous complex, South Africa, the Voiseys Bay troctolite intrusive complex in Canada, the Duluth gabbro, in North America, and various other localities throughout the world. In these locations it forms an important nickel ore.

INTRUSION-RELATED DEPOSITS

INTRUSION-RELATED DEPOSITS Mineralization associated with and/or hosted by plutonic or intrusive igneous rocks. Gabbro- & Ultramafic-Related Deposits:

assemblage pyrrhotite-pentlandite-chalcopyrite ...

These textures and the sulfide assemblage (pyrrhotite, pentlandite and chalcopyrite) are similar to the sulfide mineralization in troctolitic series rocks. springer The latter crystallizes on cooling to a mixture of magnetite and a (Fe, Ni, Cu)1−xS solid solution wich in turn decomposes to the pyrrhotite, chalcopyrite, pentlandite assemblages characteristic of Sudbury-type deposits.

Cu-Ni-PGE Mineralization in the South Filson Creek area ...

Unlike other mineralization of economic interest in the basal heterogeneous troctolite units along the lower contact, it is located at an approximate stratigraphic height of 1,000 m above the contact with the footwall granitoids in the usually unmineralized homogeneous troctolite unit.

Pentlandite - The Full Wiki

Pentlandite is found within the lower margins of mineralised layered intrusions, the prime example being the Bushveld igneous complex, South Africa, the Voiseys Bay troctolite intrusive complex in Canada, the Duluth gabbro, in North America, and various other localities throughout the world. In these locations it forms an important nickel ore.

Pentlandite - WikiVisually

Pentlandite is found within the lower margins of mineralised layered intrusions, the best examples being the Bushveld igneous complex, South Africa, the Voiseys Bay troctolite intrusive complex in Canada, the Duluth gabbro, in North America, and various other localities throughout the world. In these locations it forms an important nickel ore.

"The Petrology and Sulfide Mineralization of the Partridge ...

pentlandite). Rock typc present are augite troctolite, olivine gabbro, gabbro and gabbro-norite. In the basal zone. the iron content of olivine, the sodium content of plagioclase and the silica and potassium contents of the bulk rock in- crease with depth as do the sulfur content and the copper-nickel and iron-nickel ratios of the rocks. The chemical trends in the rocks of the base are a ...

Pentlandite - Wikipedia

Pentlandite is an iron-nickel sulfide, (Fe,Ni) 9 S 8. Pentlandite has a narrow variation range in Ni:Fe but it is usually described as having a Ni:Fe of 1:1.

Pentlandite - New World Encyclopedia

Pentlandite is a mineral consisting mainly of iron-nickel sulfide, in which the ratio of nickel to iron is usually close to 1:1. Its chemical formula is written as (Fe,Ni) …

pentlandite - an overview | ScienceDirect Topics

2012-09-01· Pentlandite typically concentrates within the lower margin of a mineralized layered intrusive. The best examples include the Sudbury ( Fig. 1.10 ) deposits, Canada, Bushveld layered igneous intrusive in South Africa, the Voisey's Bay mafic troctolite (olivine, calcic-plagioclase, and pyroxene rock) intrusive complex in Canada, and Duluth gabbro intrusive in the United States.