 | Schisa, Paul, Boudreau, Alan, Djon, Lionnel, Tchalikian, Arnaud, Corkery, John (2015) The Lac Des Iles Palladium Deposit, Ontario, Canada. Part II. Halogen variations in apatite. Mineralium Deposita, 50 (3) 339-355 doi:10.1007/s00126-014-0541-4 | Journal (article/letter/editorial) | | Heidelberg 2014 Abstract Analysis of apatite from the Mine Block Intrusion (MBI) of the Lac des Iles Igneous...from the Pd-sulfide zone contain up to 57 mol% chlorapatite endmember with significant hydroxyapatite component...(amphibolite and greenschist assemblages) the chlorapatite component is typically less than 10 mol% with...Sciences, Duke University, Box 90227, Durham, NC 27708, USA e-mail: boudreau@duke.edu L. Djon : A. Tchalikian...Thunder Bay, ON P7B 2R2, Canada Introduction The Mine Block Intrusion (MBI) of the Lac des Iles Igneous |  | | Journal (article/letter/editorial) | | pp. 279-289 (2004) THE RELATIONSHIP BETWEEN CHLORAPATITE AND PGE-RICH CUMULATES IN LAYERED INTRUSIONS:...unusually high XCl values (as much as ~0.85). Chlorapatite is quite uncommon in such settings, but is associated...significant J–M and Merensky PGE reefs of the Stillwater and Bushveld complexes, respectively. However...horizons in the Kläppsjö Gabbro, there is no chlorapatite, as there is in those two complexes, nor are...anormalement élevées en XCl (jusqu’à ~0.85). La chlorapatite est relativement rare dans de tels milieux, |  | | Journal (article/letter/editorial) | | 9 Springer-Verlag1989 Investigations of the Stillwater Complex: Part V. Apatites as indicators of evolving...Chemistry Building, Duke University, Durham, NC 27706, USA 2 Department of Geological Sciences, AJ-20, University...University of Washington, Seattle, WA 98195, USA Abstract. Variations in the F, C1 and OH contents of apatite...Microprobe analysis of intercumulus apatires from the Stillwater Complex reveal that Cl-rich apatites, typically...form the large layered intrusions such as the Stillwater and Bushvcld Complexes are generally considered |  | | Journal (article/letter/editorial) | | June 2016, Vol. 80(4), pp. 585–637 The Stillwater Complex, Montana – Overview and the significance of volatiles...Sciences, Duke University, Box 90227, Durham, NC 27708, USA [Received 31 May 2015; Accepted 19 November 2015;...ACT The geology of the 2.7 Ga Stillwater Complex in South-Central Montana is reviewed with a focus on the...involved in the crystallization of the Stillwater Complex. A dry Stillwater magma would have been mineralogically...element and chromium deposits. K E Y WO R D S : Stillwater Complex, layered intrusions, J-M Reef, platinum-group |  | | Journal (article/letter/editorial) | | temperaturealteration of REE-rich chlorapatite from the Stillwater Complex, Montana A. E. Bounnp.q,u Department...Seattle,Washington 98195, U.S.A. Ansrru,cr Chlorapatite is associatedwith coarse-grainedolivine-rich...mineralization of the J-M Reef of the Stillwater Complex. The chlorapatite may contain in excessof 2 wto/oof...healed fractures in individual grains of primary chlorapatite. The alteration assemblageincludes hydroxyapatite...loss of Cl from the host chlorapatite. The progressivedestruction of chlorapatite led to increasedchlorinity |  | | Journal (issue) | | WASHINGTON May 2, 2009 9:00 am to 5:00 pm Clark County P. U. D. Building 1200 Fort Vancouver Way Vancouver...Howard 3 Some Zeolite Locations in Montana Part 4 - Eastern Montana - South Larry B. French HC 46 Box...Box 7204 Miles City, MT 59301 In southeastern Montana, zeolites occur in three different geologic settings:... 3) As secondary minerals in the Precambrian Stillwater Complex. The following is a list of occurrences...specimens in the Montana Mineral Museum (MTMM) at Montana Tech. Analcime Carbon County: Sedimentary rocks |  | | Journal (article/letter/editorial) | | Pea Ridge magnetite–apatite ore deposit, Arkansas, USA. Daniel E. Harlov1,2 1811-5209/15/0011-0171$2.50...mineral for “fi ngerKEYWORDS : fluorapatite, chlorapatite, monazite, xenotime, brines, CO2 , printing”...considerably more dilute in HF than is the case for chlorapatite or hydroxylapatite, indicating that F is strongly...partitioned into fluorapatite. In order for chlorapatite to be stable, considerably higher concentrations...Russian Federation) —has been metasomatized to chlorapatite (Krause et al. 2013). This includes both matrix |  | | Journal (article/letter/editorial) | | (1994) presented a model for the formation of chlorapatite and fluorapatite in layered intrusions that...much of the lower stratigraphic sections of the Stillwater and Bushveld complexes can be explained solely...intrusions that contain high-C1 apatite such as the Stillwater and the Bushveld complexes. The second and more...intercumulus apatite present, whether fluorapatite or chlorapatite, is usually a function of the amount of other...minerals such as quartz. For example, within the Stillwater complex, relatively abundant amounts of F-rich |  | | Journal (article/letter/editorial) | | Solution calorimetric investigation of fluor-chlorapatite crystalline solutions Guy L. Hovis1,* and danieL...have been made on 17 synthetic fluorapatite-chlorapatite crystalline solutions at 50 °C in 20.0 wt% HCl...indicated by either synthetic or natural fluor-chlorapatite specimens. Based on full chemical analyses,...the fluor-chlorapatite system. Keywords: Enthalpies of mixing, fluorapatite, chlorapatite, thermodynamics...fluorapatite [Ca5(PO4)3F] and, to a much lesser extent, chlorapatite [Ca5(PO4)3Cl]. Overall, apatite is a natural |  | | Journal (article/letter/editorial) | | near the top of the exposed Mafic Sequence. The chlorapatite component decreases from a typical high of 10—20...Duke University, Box 902237, Durham, NC 27708—0227, USA M. D. Prendergast 1 Carson Close, Greendale, Harare...recrystallized apatite characterized by a decrease in the chlorapatite component and an increase in the hydroxyapatite...times of 10—40 s. Standards included natural chlorapatite (RM-1, Morton and Catanzaro 1964) and fluorapatite...notable exceptions of the Cl-rich apatite of the Stillwater and Bushveld Complexes. The relatively F- (and |  | 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) | | ore veins sampled at the site of long-abandoned mine adits in the Monchepluton layered basic–ultrabasic...(10–15 kg each) of Ni–Cu–PGE ores collected at old mine adits (67 55 18.4 three samples (10–15 kg00 each)◦of...Instruments Nanoanalysis, was discovered in the Capitana mine, Atacama Province, Chile, where it is commonly enWycombe...and pure5,metals (Fe, Co, ate compositions and chlorapatite, CaCu, are not Ni, Cu, Rh, Pd, Ptbetween and...supergroup [10], was discovered in the Capitana mine, Atacama Province, Chile, where it is commonly encountered |  | | Journal (article/letter/editorial) | | within apatite: Nature and experiment. Part I. Chlorapatite DANIEL E. HARLOV,1,* HANS-JÜRGEN FÖRSTER,1,2...Netherlands ABSTRACT This study investigates chlorapatite [ideally Ca10(PO4)6Cl2)] from two spatially...separated locations in the Ødegårdens Verk apatite mine, Bamble Sector, SE Norway, which was partially metasomatized...amphibolite-facies conditions. Relative to the original chlorapatite, metasomatized areas in sample DL136 are enriched...(Y + REE) abundances similar to the original chlorapatite, and host only a few monazite and xenotime grains |  | | Journal (volume) | | mafic main magma. Unusual minerals (loveringite, chlorapatite. zircon, zirconolite, baddeleyite, thorite,...intercumulus of the ultramafic cumulates; ilmenite, chlorapatite and zirconolite occur as daughter and occluded...magma inclusions in olivines and orthopyroxene. Chlorapatite, ilmenite and loveringite are the most common...Fiskenaesset, Sittampundi, Soutpansberg, Bushveld, Stillwater). In the Akanvaara and Koitelainen intrusions...intrusions, contamination, degassing, petrology, chlorapatite, Cl, ultramafics, chromitite, gabbros, geochemistry |  | | Journal (article/letter/editorial) | | 5251 Broad Branch Road, NW Washington, DC 20015, USA E-mail: drumble@carnegiescience.edu E LEMENTS ,...mafic rocks has been found in the Archean Stillwater (Montana, USA) and Proterozoic Bushveld (Republic of...carbon has δ13C VPDB values of –16.4 to –20.3‰ and Stillwater –14.7 to –16.3‰ (Wilson et al. 1995)1. The hydrous...1985). Chlorapatite replaces calcic pyroxene in the presence of graphitic carbon in the Stillwater intrusion...of hydrothermal graphite from the Bushveld and Stillwater intrusions. In situ spot carbon isotope analyses |  | | Journal (article/letter/editorial) | | of genetic significance. Chlorapatite containing up to 100% of the chlorapatite endmember occurs in individual...total PGM) are found enclosed by hydrosilicates. Chlorapatite ( > 6.0 wt.% C1) was recorded, as an intercumulus...and Lukkulaisvaara intrusions similar to the Stillwater and Bushveld complexes. The PGE mineralogy of...in/ihnlicher Weise beeinflul3t haben, wie dies im Stillwater und Bushveld-Komplex der Fall war. Die PGE-Mineralogie...silicates and iron chloride (Springer, 1989), chlorapatite and Cl-rich dashkesanite (Mutanen et al., 1988) |  | | Journal (article/letter/editorial) | | show Cl enrichment as high as that seen in the Stillwater and Bushveld complexes beneath the major stratabound...microprobe at Duke University, Durham, North Carolina, USA. Typical analytical conditions were 15 Kev acceleration...were counted first. Standards included natural chlorapatite (RM-1, Morton and Catanzaro, 1964) and fluorapatite...y'y' d d d s y' a y' a a w ww a a a a y' s y' Stillwater and Bushveld below PGE reefs OH FIG 3. Halogen...show compositional ranges in the Bushveld and Stillwater complexes, the Great Dyke, and the Skaergaard |  | | Journal (article/letter/editorial) | | Geology, Duke University, Durham, NC 277084227, USA ‘Australian Geological Survey Organisation, Canberra...over 90% near the top of the gabbroic zone. The chlorapatite component decreases from a high of 20-30 mol%...exception of the unusually Cl-rich assemblages of the Stillwater and Bushveld complexes, processes affecting halogen...recrystallized apatite characterized by a decrease in the chlorapatite component and an increase in the hydroxyapatite...counting times of 104 s. Standards included natural chlorapatite (RM-1, MORTON and CATANZARO,1964) and fluorapatite |  | | Journal (article/letter/editorial) | | Its composition evolved from hydroxyl-chlorapatite to chlorapatite. Apatite I associates with Tiрbiotite...up to 0.9 wt % lanthanides. The pneumatolitic chlorapatite and fluorapatite contain ~0.5 wt % SiO2. The...lanthanides released during the replacement of chlorapatite I by fluorapatite II were probably incorporated...III, which varies in composition from hydroxyl-chlorapatite to hydroxylapatite poor in fluorine and lanthanides...Norilsk magmatic sulfide ores, pneumatolitic chlorapatite and fluorapatite, fluid evolution, metamorphic |  | | Book | | One Liberty Plaza, 20th Floor, New York, NY 10006, USA 477 Williamstown Road, Port Melbourne, VIC 3207,...Examples 2.4.1 The Bushveld Complex 2.4.2 The Stillwater Complex 2.4.3 Skaergaard Intrusion 10 10 11...Inclusions 7.2.1 Silicate Liquid Inclusions in the Stillwater Complex 7.2.2 Other Examples of Silicate Liquid...Fluid Inclusions 7.3.1 Fluid Inclusions in the Stillwater Complex 7.3.2 Fluid Inclusions and Hydrosaline...Effects in Layered Intrusions 9.5.1 The J-M Reef, Stillwater Complex 9.5.2 The Merensky Reef, Bushveld Complex |  | | Report (issue) | | Chlorapatite Ca5 (PO4 )3 Cl c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal...(OH)0.05 F0.04 ]Σ=1.00 . (2) Fairfax, Virginia, USA; H2 O calculated for stoichiometry, corresponding...Polymorphism & Series: Mineral Group: End-member chlorapatite is monoclinic. Apatite group; Cl > F or OH... titanite, datolite (Bull Run quarry, Virginia, USA); olivine, orthopyroxene, phlogopite, ferroalluaudite...Distribution: Analyzed material noted from: in the USA, the Fairfax quarry, Centreville, Fairfax Co., and |  | | Journal (article/letter/editorial) | | Fleet, 2002 and references therein). Of these, chlorapatite [ideally Ca10(PO4)6Cl2], either as a near end...et al., 2000; Harlov et al., 2002a). Although chlorapatite has the same hexagonal symmetry (P63/m) as fluorapatite...temperatures > 350°C, at temperatures < 350°C chlorapatite shows a monoclinic symmetry (P21/b) (Bauer &..., 1985; Zhu & Sverjensky, 1991). In nature, chlorapatite can occur as an accessory mineral in layered...Archaean schists and a pegmatite at the Emerald mine, Rajagarh, India (Babu, 1972). Here we report new |  | | Journal (article/letter/editorial) | | Halogen Geochemistry of the Stillwater and Bushveld Complexes: Evidence for Transport of the Platinum-Group...exception of those from the PGE ore zones of the Stillwater and Bushveld Complexes, have C1/(C1 + OH + F)...phases and low temperaturefluids.However, both the Stillwater and Bushveld phlogopites are enriched in Cl compared...deposit of Oli vine-Bearing Subzone I of the Stillwater Complex are used to compute a fluid composition...platinum-group elements (PGE) in the Bushveld and Stillwater Complexes has focused on whether concentration |  | | Journal (article/letter/editorial) | | the 1Montana College of Mineral Science, Butte, Montana, and the 2 Rockwell International Science Center...Mineralization in a Pegrnatoid Pyroxenite of the Stillwater Complex, Montana, U.S.A. A. Volborth 1 and R. M. Housley2...element mineralization in the Stillwater Layered Anorthosite Complex, Montana. The graphite occurs in a pegmatoid...under the main palladium-platinum zone of the Stillwater intrusion may have bearing on the genesis and...in einem pegmatoiden Pyroxenit des Stillwater-Komplexes, Montana: Ein vorla~tfigerBericht Wir beschreiben |  | | Journal (article/letter/editorial) | | J-M Reef and Associated Rocks of the Stillwater Complex, Montana ALAN BOUDREAU∗ DEPARTMENT OF GEOLOGY...GEOLOGY, DUKE UNIVERSITY, BOX 90227, DURHAM, NC 27708, USA RECEIVED MAY 5, 1998; REVISED TYPESCRIPT ACCEPTED...principal platinumgroup element deposit of the Stillwater complex, the J-M reef. OB I is characterized...crystallized layered igneous intrusions such as the Stillwater complex have traditionally been considered to...that the highCl, high-Mg parent liquids of the Stillwater and Bushveld complexes, like their modern-day |  | | Journal (article/letter/editorial) | | Nelson Lead isotopes in sul®des from the Stillwater Complex, Montana: evidence for subsolidus remobilization...samples from the platiniferous J-M Reef of the Stillwater Complex were measured to elucidate the temporal...351310 University of Washington Seattle, WA 98195, USA e-mail: mccallum@u.washington.edu Editorial responsibility:...enrichment and redistribution in the J-M Reef of the Stillwater Complex. Previous measurements of the isotopic...chemical disturbance since their formation. The Stillwater Complex has been described in a recent review |
|
