A complex bismuthian palladium telluride intergrowth from the Stillwater Complex, Montana

Cabri, Louis J.; Pickwick, K.M.

doi:10.2113/gsecongeo.69.2.263

Cited by 10 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…21 Both Itabira and Gongo Soco are hosted by itabirite and they dislay a similar palladium gold assemblage of specularite and palladium arsenide-antimonide and selenide minerals. 5,6,8,9,[33][34][35][36] The jacutinga orebodies from Itabira have been considered by Olivo et al [33][34][35][36] as parallel to the tectonic foliation of the host itabirite. However, recent detailed geological mapping by mine geologists has disclosed that, like Gongo Soco, the jacutinga orebodies occur as crosscutting veins, 14 whereas further mineralogical investigation has indicated a mineral association compatible with temperatures in the epithermal range.…”

Section: Discussionmentioning

confidence: 99%

Palladian gold and palladium arsenide–antimonide minerals from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil

Cabral¹,

Lehmann²,

Kwitko³

et al. 2002

Applied Earth Science

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Palladian gold and palladium arsenide–antimonide minerals from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil

Cabral¹,

Lehmann²,

Kwitko³

et al. 2002

Applied Earth Science

View full text Add to dashboard Cite

show abstract

“…Skaergaard massif, Greenland, Denmark [73]; 6. Stillwater, USA [74]. Structures: I-Intermontane terranes of British Columbia (North American Cordilleran orogenic belt), II-Wyoming province, III-Canadian shield, IV-Paleogene platobasalts of eastern Greenland.…”

Section: Geological Setting and Deposits With Palladian Goldmentioning

confidence: 99%

“…Chudnoe [53], 6. Nesterovskoe [53]; 7-deposits of the Fedorovo-Pansky intrusive complex [58]; 8-Ebeko Volcano, Kuriles [43]; 9-Stillwater, Montana, USA [74]; 10-Corrego Bom Sucesso, Brazil [76]; 11-Gongo Soco iron mine, Brazil [25]; 12-Serra Pelada, Brazil [25]; 13-Caue iron mine, Brazil [77]; 14-Cedrolina Chromitite (Goiás State, Brazil) [75]; 15-Bleïda Far West, Morocco [68]; 16-Ambositra District, Madagascar [70]; 17-Hope's Nose, Devon, England [66]; 18-Brownstone, Devon, England [20]; 19-Lammermuir Hills, Scotland [20]; 20placer gold of Zimnik Creek, Poland [64]; 21-Chorokh River, Artvin District, Turkey [60]; 22-Ozernoe [31]; 23-Uderei Au-Sb [49]; 24-Pay-Khoy [51]; 25-KMA (Lebedinskoye) [59]; 26-theoretical compositions of minerals corresponding to their ideal formulas. Shaded markers are endogenous, empty markers are exogenous deposits.…”

Section: Palladian Gold and Au-pd Systemmentioning

confidence: 99%

“…Minerals associated with Ag-bearing palladian gold in small calcite veins at the Cu-Nisulfide Hope's Nose (England) are chrisstanleyite, clausthalite, fischesserite, chlorargyrite, oosterboschite, calcite, and cerussite [74]. Vysotskite, braggite, paolovite, and pentlandite are associated with Ag-bearing palladian gold at the Stillwater (USA) and Fedorova Tundra (Russia) deposits, respectively.…”

Section: Palladian Gold and Au-pd Systemmentioning

confidence: 99%

See 1 more Smart Citation

Palladian Gold: Chemical Composition, Minerals in Association, and Physicochemical Conditions of Formation at Different Types of Gold Deposits

Palyanova,

Zhegunov,

Beliaeva

et al. 2023

Minerals

View full text Add to dashboard Cite

This paper reviews and summarizes the available information on the composition of palladian gold with various contents and sets of isomorphic impurities (Ag, Cu, Hg) at 50 deposits and ore occurrences with Au-Pd mineralization. It is revealed that Palladian gold is represented by the systems Au–Pd, Au–Pd–Hg, Au–Pd–Cu, and Au–Pd–Ag–Hg, but more frequently corresponds to Au–Pd–Ag, Au–Pd–Ag–Cu, and Au–Pd–Ag–Cu–Hg. Objects with palladian gold belong to different types of gold deposits and to the deposits at which the main components of ores are PGE, Cr, Cu, Ni, V, and Ti. We propose a classification of the types of deposits with palladian gold: (1) PGE ore deposits related to mafic–ultramafic magmatic complexes (two subtypes—(a) low-sulfide-grade (less than 2%–5% sulfides) Alaskan, and (b) high-sulfide-grade (more than 5% sulfides) Norilsk); (2) orogenic gold deposits (OG); (3) epithermal (porphyry) gold–copper deposits (EPGC); (4) iron oxide copper gold deposits (IOCG); (5) ferruginous quartzite deposits; (6) volcanic exhalation; and (7) gold-PGE placers of five subtypes corresponding to the types of 1–5 primary sources. Palladian gold is mainly high-fineness (910‰–990‰), is less frequently medium-fineness, and contains Ag and Cu, but does not contain Hg at the deposits of types 1, 3, and 4. The only exception is the Au-Pd-Hg Itchayvayam ore occurrence (Kamchatka, Russia), for which two varieties of Pd,Hg-bearing native gold (fineness 816‰–960‰ and 580‰–660‰) are determined. Low-fineness palladian gold with the major content of Ag is typical of OGD deposits. Medium-fineness palladian gold occurs at ferruginous quartzite deposits and in volcanic exhalations. Hg, Ag, Cu-bearing high-fineness palladian gold is present mainly in placer deposits (type 7). The most common minerals in association with palladian gold are arsenides, stibioarsenides, sulfides, stannides, bismuthides, tellurides, and selenides of Pd and Pt. These are typical of deposit types 1 and 7. The minerals of Au, Ag, and Cu (tetra-auricupride, aurostibite, chalcopyrite, bornite, chalcocite, eucairite, etc.) are in association with palladian gold at OG, EPGC, and IOCG deposits. Hg minerals (cinnabar, tiemannite, coloradoite, potarite) are at some deposits (types 1, 2, 7-1, 7-4). Cu, Fe, and Pd oxides (tenorite, hematite, magnetite, PdO, (Pd,Cu)O) and Fe and Pd hydroxides (goethite, (Fe,Pd)OOH) occur at the deposits of the 3, 4, and 7 groups and indicate the highly oxidizing conditions of ore formation. The most common minerals among host minerals are quartz and muscovite, including fuchsite (Cr-Ms), chlorite, albite, K-feldspar, hornblende, and carbonates (calcite, siderite, etc.). The fineness, content, and set of impurities in palladian gold and minerals in association with it reflect the mineralogy of Au-Pd ores and allow them to be used as indicators for the deposit types.

show abstract

“…The remaining PGE budget is hosted in discrete PGMs including alloys, bismuthides, tellurides, arsenides, antimonides, and sulfides (Cabri and Laflamme, 1974;Cabri and Pickwick, 1974;Cabri et al, 1975;Cabri et al, 1978;Cabri et al, 1979;Godel and Barnes, 2008a).…”

Section: Olivine-bearing Zone Imentioning

confidence: 99%

The petrology of the J-M Reef Pd-Pt deposit and the Lower Banded series of the Stillwater Complex, Montana, USA

Jenkins¹

View full text Add to dashboard Cite

The J-M Reef, of the Lower Banded series (LBS) in the Neoarchean Stillwater Complex, is the highest-grade platinum group element (PGE) deposit on Earth. The J-M Reef is a ~1.5 m thick stratiform accumulation of high tenor disseminated sulfide and platinum group minerals hosted in coarse-grained heteradcumulates called the Reef Package. The grades and sulfide tenors of the reef vary from one part of the Stillwater Complex to another due to variable amounts of silicate and sulfide liquid equilibration.The cumulates in the LBS can be modeled by batch crystallization of a komatiitic parental melt contaminated by lower crustal rocks. Emplacement of crystal-bearing slurries produces the noritic and gabbronoritic cumulates that account for most of the rocks in the LBS.The olivine-bearing rocks of the LBS are modeled by infiltration and partial melting of footwall gabbronorites by an influx of hot, dense contaminated komatiitic parental melt. This infiltration First and foremost, I cannot express enough gratitude to Jim Mungall for taking me on as an international student, first at the University of Toronto and then for offering me a PhD position at Carleton. Jim was a brilliant mentor and supervisor, and always allowed me to pursue different avenues of research and was always there to make suggestions when things were difficult or didn't work out as I had hoped. I forever grateful for Jim's patience and understanding of my situation as a graduate student with a young family. I am thankful for the friends and colleagues that were a part of Jim's research group in the Mineral Deposits Lab over the years including

show abstract

A complex bismuthian palladium telluride intergrowth from the Stillwater Complex, Montana

Cited by 10 publications

References 0 publications

Palladian gold and palladium arsenide–antimonide minerals from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil

Palladian gold and palladium arsenide–antimonide minerals from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil

Palladian Gold: Chemical Composition, Minerals in Association, and Physicochemical Conditions of Formation at Different Types of Gold Deposits

The petrology of the J-M Reef Pd-Pt deposit and the Lower Banded series of the Stillwater Complex, Montana, USA

Contact Info

Product

Resources

About