 | | Report (volume) | | Phlogopite Within an Olivine Cumulate in the Stillwater Complex, Montana U.S. GEOLOGICAL SURVEY BULLETIN 1674-A...Within an Olivine Cumulate in the Still water Complex, Montana By NORMAN J PAGE and MICHAEL L. ZIENTEK U...phlogopite within an olivine cumulate in the Stillwater Complex, Montana. (Contributions on ore deposits in the...3:1674-A 1. Amphiboles Montana. 2. Phlogopite Montana. 3. Chrysolite Montana, I. Zientek, Michael L....olivine cumulate of cyclic unit 2, Still water Complex, Montana A8 3. Electron microprobe analyses and calculated |  | | Journal (article/letter/editorial) | | equilibrium with ered intrusions, the Bushveld and Stillwater complexes [13,50–52]. mineral assemblage arc...(aspidolite and phlogopite) and amphiboles (mainly pargasite), some of magmas [16,35–37]. The layered intrusions...chromititeproducing layered intrusions, the Bushveld and Stillwater complexes [13,50–52]. The mineral assemblage...(aspidolite and phlogopite) and amphiboles (mainly pargasite), some of which are Na-rich and hydrous (Figure...chromititeinpod. Chr, chromite; Asp, aspidolite; Prg, pargasite; Di, diopsidic clinopyroxene. (a) Photomicrograph |  | | Journal (article/letter/editorial) | | model may be applicable to all mafic-ultramafic complex-types. Zusammenfassung Minerale der Platin-Gruppe...described by Hiemstra (1979) for some Bushveld Complex, South Africa samples and the laurite-silicate... Fluid inclusions have been identified in all complex-types but have been analyzed only for the A1 Ays...volcanogenic sulphide ore deposits of the Troodos Complex, Cyprus (Spooner and Gale, 1982). Mineral analyses...alloy and silicate inclusions in chromite for all complex-types have been published elsewhere (Talkington |  | | Journal (article/letter/editorial) | | origins (e.g., Stillwater Complex, Montana, USA; Page and Jackson 1967; Page 1971; Bushveld Complex, South Africa;...Africa; Hiemstra 1979; Troodos Complex, Cyprus, Constatinides et aI.,~980; Unst Ophiolite, Shetland Isles...Stockton State College, Pomona, New Jersey, 08240, USA 1981; Newfoundland ophiolitic rocks, Canada, Watkinson...ultramafics in the Cache Greek Group; Stillwater Complex, Montana; Vourinos Complex, Greece; and others) are similar...Peridotite, northwestern Newfoundland and Stillwater Complex, Montana (Page 1971), and in the White Hills Peridotite |  | Sessa, G., Moroni, M., Tumiati, S., Caruso, S., Fiorentini, M.L. (2017) Ni-Fe-Cu-PGE ore deposition driven by metasomatic fluids and melt-rock reactions in the deep crust: The ultramafic pipe of Valmaggia, Ivrea-Verbano, Italy. Ore Geology Reviews, 90. 485-509 doi:10.1016/j.oregeorev.2017.05.028 | Journal (article/letter/editorial) | | where dark nodules, with ultramafic cores and pargasite- spinel-phlogopite-bearing symplectite coronas...sulfide mineralization, related host rocks and their complex mineralogy (Garuti et al., 2001). In addition,...is composed of three main formations: the Mafic Complex, the meta- volcanosedimentary Kinzigite Formation...central-southern part of the Ivrea-Verbano Zone, the Mafic Complex is about 8 km thick and 35 km wide (Peressini et...and uplifted from a depth of 15 km, the Mafic Complex remained relatively undisturbed and retained its |  | | Journal (article/letter/editorial) | | n of REE-rich chlorapatite from the Stillwater Complex, Montana A. E. Bounnp.q,u Department of Geology...de mineralization of the J-M Reef of the Stillwater Complex. The chlorapatite may contain in excessof...platinum-group elernent(rce) deposit ofthe Stillwater Complex, the J-M Reef, are unusual in that they contain...Apatite occurs as a minor phase throughout the Stillwater Complex and associated rocks (Boudreau and McCallum...apatite is characteristicof the lower third of the complex, above the Basalseries.Within the platiniferousJ-M |  | | Journal (article/letter/editorial) | | deep-crustal magma inferred from the Alaskan-type complex, Egypt Mohamed Zaki Khedr, Shoji Arai, Tomoaki...deep-crustal magma inferred from the Alaskan-type complex, Egypt, Ore Geology Reviews (2020), doi: https://doi...deep-crustal magma inferred from the Alaskan-type complex, Egypt 1Department Mohamed Zaki Khedr*1 , Shoji...The concentrically zoned Dahanib Alaskan-type complex in the Southern Eastern Desert (SED) of Egypt contains...spinels of the banded chromitites are usually pargasite, orthopyroxene (Opx), aspidolite, phlogopite, |  | | Journal (article/letter/editorial) | | olivine and plagioclase including orthopyroxene, pargasite and MgAlz-rich green spinel. Whenever complete...intrusions, located in gneisses of the Goias basal complex (Almeida, 1968), Goifis State (Fig. 1). The only...Proterozoic metamorphic belt I--[ Goi6s basal complex 8° _ L..~:- [-~--~J Ma f ic ultramafic complexes...amphibolites, mylonites, etc, crosscut the complex. Portions of the complex pre- 30 M . A . F . Candia and...an inner zone of granular bronzite followed by pargasite and an outer one of symplectitic intergrowths |  | Barkov, Andrei Y., Nikiforov, Andrey A., Barkova, Larisa P., Martin, Robert F. (2022) Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia. Minerals, 12 (5) 624 doi:10.3390/min12050624 | Journal (article/letter/editorial) | | Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia Andrei Y. Barkov 1, *,...of massive sulfides in the Monchepluton layered complex, Kola Peninsula, Russia. These veins consist of...Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia. Minerals 2022, 12, 624...adits in the Monchepluton layered basic–ultrabasic complex has led to the discovery of a member of the py... in the Monchepluton layered mafic–ultramafic complex of Paleoproterozoic (~2.5 Ga) age [1,2]. We explore |  | | Journal (article/letter/editorial) | | Japan ISSN: 1342-937X The Kondapalli Layered Complex, Andhra Pradesh, India : A Synoptic Overview C...June 25, 1997) Abstract The Kondapalli Layered Complex (KLC) consists dominantly of gabbroic and anorthositic... systematic studies on the Kondapalli Layered Complex (KLC) in the Krishna district of Andhra Pradesh...(Leelanandam, 1967b, 1969a, 1970). The KondapalliLayered Complex (KLC) in its entirety, was first recognised by...KLC represents a discontinuous stratiformtype complex enveloped by a much greater volume of charnockite |  | | Journal (article/letter/editorial) | | melanorite and its stratiform pegmatoids, Bushveld Complex, South Africa – characteristics, timing and origins...Two Rivers Platinum Mine (eastern limb, Bushveld Complex) is fully enclosed within a UG2 melanorite that...Introduction The chromitite seams of the Bushveld Complex are the most laterally extensive on Earth, traceable...form pipes and sheet-like bodies in the Bushveld Complex (e.g. Viljoen and Scoon, 1985; Cawthorn et al....of the world-class PGE deposits in the Bushveld Complex (Merensky Reef, UG2, Platreef) are associated with |  | Chayka, Ivan F., Zhitova, Liudmila M., Antsiferova, Tatiana N., Abersteiner, Adam, Shevko, Artem Ya., Izokh, Andrey E., Tolstykh, Nadezhda D., Gora, Marina P., Chubarov, Valery M., Kamenetsky, Vadim S. (2020) In-Situ Crystallization and Continuous Modification of Chromian Spinel in the “Sulfide-Poor Platinum-Group Metal Ores” of the Norilsk-1 Intrusion (Northern Siberia, Russia) Minerals, 10 (6) 498 doi:10.3390/min10060498 | Journal (article/letter/editorial) | | some layered igneous complexes (e.g., Bushveld, Stillwater) and are among the main global resources of PGE...rocks are comparable with the reefs of Bushveld, Stillwater and some other layered intrusions. However, there...layered intrusions (Bushveld, Kemi, Monchegorsk, Stillwater and others) tend to occur in their lower parts...“layers” or “horizons,” are discontinuous and have complex boundaries. Cr-spinel is widely used as a petrological...inclusions, proved to be efficient for Bushveld, Stillwater, and Rhum complexes. A number of implications |  | | Journal (article/letter/editorial) | | in the Ferrogabbros of the Elet’ozero Intrusive Complex (Northern Karelia, Russia) as Evidence for the...Keywords: titaniferous syenite–gabbro intrusive complex, Fe–Ti oxides (magnetite, Ti-magnetite, ilmenite...frequently changed outward by phlogopite and/or pargasite rims corroding the early olivine rim [Figs. 2–6...(moderate-Fe olivine, phlogopite– biotite, and pargasite) are observed as cumulus phases in the late derivatives...high-Ca plagioclase in the Surivara rocks and by pargasite in contact with moderate-Ca plagioclase in the |  | Peng, Genyong, Lewis, John F., Lipin, Bruce R., McGee, James J., Bao Peisheng, , Wang Xibin, (1995) Inclusions of phlogopite and phlogopite hydrates in chromite from the Hongguleleng Ophiolite in Xinjiang, Northwest China. American Mineralogist, 80 (11) 1307-1316 doi:10.2138/am-1995-11-1221 | Journal (article/letter/editorial) | | primary silicate inclusions such as phlogopite, pargasite,clinopyroxene, orthopyroxene,and olivine are found...1995). Abundant primary inclusions of phlogopite, pargasite, clinopyroxene, orthopyroxene, and olivine (in...assemblagein chromite is mainly composedof phlogopite, pargasite,olivine, orthopyroxene,and clinopyroxene. Ptgroup...from the mantle sequence, phlogopite(ph) and pargasite(pa)compositeinclusionin chromite from the transitionzone... eralic, but phlogopite locally coexistswith pargasite(Fig. Analytical technique 3d). A single segregatedchromite |  | Zhu, Wei-Peng, Tian, Wei, Wang, Bin, Zhang, Ying-Hui, Wei, Chun-Jing (2023) Paleoproterozoic Crust–Mantle Interaction in the Khondalite Belt, North China Craton: Constraints from Geochronology, Elements, and Hf-O-Sr-Nd Isotopes of the Layered Complex in the Jining Terrane. Minerals, 13 (4) 462 doi:10.3390/min13040462 | Journal (article/letter/editorial) | | Elements, and Hf-O-Sr-Nd Isotopes of the Layered Complex in the Jining Terrane Wei-Peng Zhu 1,2 , Wei Tian...Elements, and Hf-O-Sr-Nd Isotopes of the Layered Complex in the Jining Terrane. MOE Key Laboratory of Orogenic...Hf-O-Sr-Nd isotopic data for a Paleoproterozoic layered complex in the Jining terrane to constrain the tectonic...Khondalite Belt; UHT granulite/gneiss; layered complex; AFC; tectonic evolution Minerals 2023, 13, 462...“layered complex” was first recorded in Layered Igneous Rocks [1]. Most of the layered complex is close |  | | Journal (article/letter/editorial) | | lithologies from the eastern Beartooth Mountains, Montana, U.S.A. These rocks are typified by mineral assemblages...iron-formation rocks from the Beartooth Mountains, Montana, U.S.A., to establish some of the crystallographic...of older (up to 3.5 Ga) lithologies and (2) the Montana metasedimentary terrane (MMT) containing various...(Fig. 1). The Stillwater Block is typified by the 2.7 Ga Stillwater Layered Igneous Complex and its associated...The darker shade in the Stillwater block is the Stillwater Layered Igneous Complex (2.7 Ga). The Long Lake |  | Spiridonov, E. M., Ariskin, A. A., Kislov, E. V., Korotaeva, N. N., Nikolaev, G. S., Pshenitsyn, I. V., Yapaskurt, V. O. (2018) Laurite and Ir-Osmium from Plagioclase Lherzolite of the Yoko–Dovyren Mafic–Ultramafic Pluton, Northern Baikal Region. Geology of Ore Deposits, 60 (3) 210-219 doi:10.1134/s1075701518030078 | Journal (article/letter/editorial) | | and Ir-osmium, in association with phlogopite, pargasite, pentlandite, troilite and chalcopyrite there...anhedral grains of phlogopite and/or amphibole (pargasite to edenite), and rare apatite, magnetite, spinel...and zvyagintsevite associated with phlogopite, pargasite, pentlandite, troilite, chalcopyrite, and magnetite...Similar laurite is common in chromitites of the Stillwater pluton in Canada (Talkington and Lipin, 1986)...close in composition to laurite from Bushveld and Stillwater chromitites. COMPARISON OF Ir-OSMIUM FROM THE |  | | Journal (article/letter/editorial) | | comprising the inclusion are phlogopites (Na- and K-), pargasite, diopside, enstatite, jadeite, nepheline and albite;...which formed a dunite (chromitite)-troctolite complex [2,4], without any supply from subducting slab...Fe) atomic ratio) and TiOz wt% of amphibole (pargasite) and phlogopites (K-, Na- and K-Na-) included... Petrology of the gabbro-troctoliteperidotite complex from Hess Deep, equatorial Pacitic: implications...[61 S. Arai, H. Yurimoto, Tari-Misaka ultramafic complex, Southwestern Japan, as mantle-melt interaction |  | Godel, Bélinda, Rudashevsky, Nikolay S., Nielsen, Troels F.D., Barnes, Stephen J., Rudashevsky, Vladimir N. (2014) New constraints on the origin of the Skaergaard intrusion Cu–Pd–Au mineralization: Insights from high-resolution X-ray computed tomography. Lithos, 190. 27-36 doi:10.1016/j.lithos.2013.11.019 | Journal (article/letter/editorial) | | investigations. Our HRXCT analyses reveal the complex textural relationships between Cu-rich sulfides...class (e.g., D Merensky Reef of the Bushveld Complex in South Africa) account for almost all of the...(Miller Jr and Ripley, 1996), the Rincon del Tigre Complex in Bolivia (Prendergast, 2000) and the Stella intrusion...of the Bushveld Complex in South-Africa or the J-M Reef of the Stillwater Complex in USA (Naldrett, 2004...amphiboles (tremolite, hornblende, cummingtonite and pargasite), biotite, albite-rich plagioclase, and quartz |  | | Journal (article/letter/editorial) | | magma trapped by the chromite mainly precipitates pargasite and aspidolite (Na analogue of phlogopite), which...homogenized inclusions in chromites from the Stillwater intrusion. AC Combined with isotopic data,...chromitite. In the case of the Tari-Misaka ultramafic complex in Japan, Arai (1980) recognized a modal gap between...well-exposed ophiolites, such as the Oman ophiolite complex (e.g., Augé, 1987). They are always surrounded...Wakamatsu mine SC RI in the Tari-Misaki ultramafic complex (Arai, 1980). This is the largest pod of low-Cr# |  | | Book | | elements (PGE). Using examples from the Bushveld complex of South Africa and other intrusions, this book...One Liberty Plaza, 20th Floor, New York, NY 10006, USA 477 Williamstown Road, Port Melbourne, VIC 3207,...Deposits: Examples 2.4.1 The Bushveld Complex 2.4.2 The Stillwater Complex 2.4.3 Skaergaard Intrusion 10 10...Inclusions 7.2.1 Silicate Liquid Inclusions in the Stillwater Complex 7.2.2 Other Examples of Silicate Liquid Inclusions...Inclusions 7.3.1 Fluid Inclusions in the Stillwater Complex 7.3.2 Fluid Inclusions and Hydrosaline Melt |  | | Journal (article/letter/editorial) | | LU,r rL I27O 986 LI92 770 488 orthopyroxene pargasite peretaite perovskLte 826,109L,1093 559 937 636...yUND, R.A. 438 CHARLES, R.W.: Anphlboles on rhe pargasite-ferropargasite joln gg6 CHAYES,- F., revlew of...iments Rocks (Cilpta and Yagl) 1309 Iron fomtlon, Montana The structure of FUESS, lt. see JoSWIG, W. 349...MEDENBACH,0. MITCHELL, R.H.: Pyroxenes of the 45 complex, Norway Fen alkaline MITCHELL, R.S., review of...(Dietrich and and, Minerals 576 Skinner) 1087 Montana, iron forMtion Monteregianite, new mineral (abstr) |  | | Journal (article/letter/editorial) | | Carolina at Pembroke, Pembroke, North Carolina 28372, USA ABSTRACT Terrestrial mafic and ultramafic bodies...bodies are tschermakite, magnesiohornblende, and pargasite, and they plot within the range of amphiboles...Accretionary complexes, such as the Olympic subduction complex (e.g., Brandon and Vance 1992) and the Sulawesi...Carolina superterrane is composed of the Berner mafic complex, a series of mafic and This content downloaded...window outcrops to the west of the Berner mafic complex, and the two lithotectonic terranes are separated |  | Kapsiotis, Argirios, Grammatikopoulos, Tassos A., Tsikouras, Basilios, Hatzipanagiotou, Konstantin, Zaccarini, Federica, Garuti, Giorgio (2011) Mineralogy, composition and PGM of chromitites from Pefki, Pindos ophiolite complex (NW Greece): evidence for progressively elevated fAs conditions in the upper mantle sequence. Mineralogy and Petrology, 101 (1) 129-150 doi:10.1007/s00710-010-0140-8 | Journal (article/letter/editorial) | | PGM of chromitites from Pefki, Pindos ophiolite complex (NW Greece): evidence for progressively elevated...Springer-Verlag 2010 Abstract The Pindos ophiolite complex, located in the northwestern part of continental...the Pefki chromitites in the Pindos ophiolite complex. The presence of an unusual PGM assemblage in these...chromitites of the area of Pefki in the Pindos ophiolite complex was made by Grammatikopoulos et al. (2007). In...study of high-Cr chromite deposits from the Pindos complex, it was shown that the PGMs are dominantly IPGE-enriched |  | | Journal (article/letter/editorial) | | presence of primary inclusions of hydrous minerals (pargasite and phlogopites) within chromian spinel of podiform...of these hydrous minerals (e.g., < 3 GPa for pargasite; Niida and Green, 1999). This character, i.e....Podiform chromitites of the TariMisaka ultramafic complex, southwestern Japan, as mantlemelt interaction...Program, Texas A & M University, College Station, USA. 285 Spandler, C., Mavrogenes, J. and Arculus,...from chromitehosted melt inclusions from the Stillwater Complex. Geology, 33, 893-896. Stachel, T., Brey |
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