 | | Journal (article/letter/editorial) | | groundmass spinels belonging to the magnesian ulvöspinel – magnetite series. In most cases, perovskite...levels of incompatible elements (e.g., Green Mountain in Colorado: Boctor & Meyer 1979). Clearly, variations... OCCURRENCE The formation of kimberlite is a complex, multistage process involving upper-mantle metasomatism...hydrothermal events, and subsolidus alteration. The complex history of crystallization results in diverse parageneses...& Boyd 1980, 1981); (iii) relict fragments in complex multiphase pseudomorphs typically consisting of |  | | Journal (article/letter/editorial) | | distribution of multivalent cations in chemically complex magnetic spinels. Keywords: Analysis, chemical...distribution in the structures of natural spinels is complex due to difficulties in assigning the cations to...not well suited to the analysis of chemically complex PEARCE ET AL.: CATION SITE OCCUPANIES IN NATURAL...for chemically complex minerals of known chemical composition (Carbonin et al. 1996). Iron (57Fe) Mössbauer...coordination, covalency, and magnetic ordering of iron atoms in solids that has been widely applied to |  | | Journal (article/letter/editorial) | | However, in many cases these minerals undergo complex alteration processes during the hydrothermal or...spinel and groundmass spinels of the magnesian ulvöspinel—magnetite series in kimberlite [12]. However...FEI-XTE-325/D8395 (FEI,scanning Hillsboro,electron OR, USA) with Petrographic and textural an studies were carried...E-SEM-Quanta 200 FEI-XTE-325/D8395 (FEI, Hillsboro, OR, USA) with 20–25 kV, 1 nA beam current and 10 mm distance...replaced (a) Type 1by perovskite (Prv1) with an ulvöspinel inclusion (Usp) from SK-1 kimberlites being by |  | Lindsley, D. H., Frost, B. R., Frost, C. D., Scoates, J. S. (2010) PETROLOGY, GEOCHEMISTRY, AND STRUCTURE OF THE CHUGWATER ANORTHOSITE, LARAMIE ANORTHOSITE COMPLEX, SOUTHEASTERN WYOMING. The Canadian Mineralogist, 48 (4) 887-923 doi:10.3749/canmin.48.4.887 | Journal (article/letter/editorial) | | THE CHUGWATER ANORTHOSITE, LARAMIE ANORTHOSITE COMPLEX, SOUTHEASTERN WYOMING Donald H. LINDSLEY§ Department...Brook University, Stony Brook, New York 11794-2100, USA B. Ronald FROST and Carol D. FROST Department of... University of Wyoming, Laramie, Wyoming 82071, USA James S. SCOATES Department of Earth and Ocean Sciences...up the Laramie Anorthosite Complex in the Laramie Mountains, Wyoming, USA. The southwestern portion of...Chugwater Anorthosite intermediate between the Poe Mountain Anorthosite to the north (in situ fractionation |  | | Report (issue) | | vanadium 50.94 chromium 52.00 manganese 54.94 iron 55.85 cobalt 58.93 nickel 58.69 copper 63.55...contain strong permanent magnets composed of neodymium-iron-boron. Photograph courtesy of Iberdrola Renewables...the site of a former landfill at Fort Carson, Colorado. Tellurium is a critical component for the development...gelogic map of Spor Mountain area in Utah, photograph of beryllium tuff at Spor Mountain, and photograph...photograph of nodule from the Spor Mountain tuff.............................................................. |  | Knipping, Jaayke L., Bilenker, Laura D., Simon, Adam C., Reich, Martin, Barra, Fernando, Deditius, Artur P., Wӓlle, Markus, Heinrich, Christoph A., Holtz, François, Munizaga, Rodrigo (2015) Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation by igneous and magmatic-hydrothermal processes. Geochimica et Cosmochimica Acta, 171. 15-38 doi:10.1016/j.gca.2015.08.010 | Journal (article/letter/editorial) | | Manuscript Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation...Munizaga, R., Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation...pertain. Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation...1100 North University Ave, Ann Arbor, Michigan, USA 2 Department of Geology and Andean Geothermal Center...jaaykek@umich.edu Abstract Iron oxide-apatite (IOA) deposits are an important source of iron and other elements |  | | Book (volume) | | Grütter (Canada) Jeff Harris (UK) Stephan Haggerty (USA) Peter Nixon (UK) Hugh O’Brien (Finland) Sue O’Reilly...(Vancouver) D. Graham Pearson (Canada) Roberta Rudnick (USA) Barbara Scott Smith (Canada) Craig Smith (South...kimberlites from Southern Africa, Canada and the USA. Data were acquired using the Edinburgh Cameca IMS...and an antigorite (d18O = 8.8 %) standard. In Iron Mountain hypabyssal kimberlites, the d18O of pseudomorphic...in kimberlites are themselves mineralogically complex, very fine grained and commonly intergrown with |  | | Book | | Herbert Kroll (Münster), Rob Lavisnky (Dallas, USA), Heike Lehner (Heidelberg), Joachim Lorenz (Karlstein...5 5.1 5.2 5.3 5.4 5.5 Sulfides, Arsenides and Complex Sulfides (Sulfosalts). . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . 102 Complex Metal Sulfides (Sulfosalts). . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . . Iron- and Manganese-rich Sediments and Sedimentary Rocks... . Fig. 1.1 Group of quartz crystals, Arkansas, USA, approximately original size 1.1 Crystal Morphology |  | | Book | | . . . . . . . 2.1 Iron and Steel Refiners . . . . . . . . . . . . . . . 2.1.1 Iron (Fe) . . . . . . ....and Platinum in Basic Magmas . . 3.3.3 Bushveld Complex . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . 3.3.5 Sudbury Igneous Complex . . . . . . . . . . . . . . . . . . . . 3.4 Komatiite.... . . . . . . 3.6 Kiruna-Type Magnetite Apatite Iron Ore . . . . . . . . . . . . . . . . 3.7 Granite.... . . . . . . . . . . . . . . . . . . . . . 4.7 Iron Oxide Copper Gold Deposits . . . . . . . . . . |  | Castillo-Oliver, Montgarri, Galí, Salvador, Melgarejo, Joan Carles, Griffin, William L., Belousova, Elena, Pearson, Norman J., Watangua, Manuel, O'Reilly, Suzanne Y. (2016) Trace-element geochemistry and U–Pb dating of perovskite in kimberlites of the Lunda Norte province (NE Angola): Petrogenetic and tectonic implications. Chemical Geology, 426. 118-134 doi:10.1016/j.chemgeo.2015.12.014 | Journal (article/letter/editorial) | | kimberlites is interpreted as an evidence of a complex, multi-stage process that involved mingling of...TE (Mitchell, 1986). As a consequence of their complex nature, dating kimberlites and characterising their...of these ilmenite xenocrysts were altered to ulvöspinel before being coated by perovskite. The ACCEPTED...suggests that the petrogenesis of these pipes is more complex than for the other kimberlites. As previously shown...for kimberlite emplacement, always related to complex fault networks: i) supercontinent formation, ii) |  | | Book | | intervention. The scattering curve depends in a complex way on size distribution of absorbing particles...+ 2)−2ν4, where ν is light frequency. In more complex cases the intensity of light scattering can be...belonging to H2O, H3O+, B(OH)3, HPO42− and other complex ions and molecules. But it should be kept in mind...crystals (solid solutions involving different complex anions, alteration of different kinds of stacking...Kleppe et al. 2001), whereas some others show more complex spectra. The investigation of wadsleyite synthesized |  | | Book | | Jacqueline Vander Auwera 465 12 The Bushveld Complex, South Africa �������������������������������...Stearns A. Morse 589 14 The Ilímaussaq Alkaline Complex, South Greenland �������������������������� ...Sciences, University of California Merced, Atwater, CA, USA Alan E. Boudreau Division of Earth and Ocean Sciences...and Earth Sciences, Duke University, Durham, NC, USA John W. M. Bush Department of Mathematics, Massachusetts...Massachusetts Institute of Technology, Cambridge, MA, USA R. Grant Cawthorn School of Geosciences, University |  | Kogel, Jessica Elzea, Trivedi, Nikhil C., Barker, James M., Krukowski, Stanley T. - Eds. (2006) Industrial Minerals and Rocks (7th ed.) Society for Mining, Metallurgy, and Exploration, Inc., Littleton, CO. | Book (edition) | | Inc. (SME) 8307 Shaffer Parkway Littleton, Colorado, USA 80127 (303) 948-4200 / (800) 763-3132 www.smenet...substantial and wide-ranging changes and their complex ramifications for the industry. For example, numerous...the Interior U.S. Geological Survey Lakewood, Colorado Geologic Consultant Reno, Nevada Sam M. Pickering... Dan Zampirro Holcim (US) Inc. Fort Collins, Colorado Nevada Division of Water Resources Carson City...Minerals Business Development Consultant Lyons, Colorado George S. Austin Denis A. Brosnan New Mexico |  | | Conference Proceedings (Volume) | | Irene Mutti Integrated 3D mineral systems maps for iron oxide copper gold (IOCG) Deposits, Eastern Gawler...and petrophysical investigation of the Dannemora iron ore bodies, central Sweden .......................Nietverdiend mafic layered intrusion, the Bushveld Complex, South Africa ...................................isotope chemistry of iron oxides – a vector for the exploration of concealed BIF-hosted iron ore bodies? .....and magnetite chemistry of the Malmberget apatite iron ore, Northern Norrbotten, Sweden .............. |  | | Report (issue) | | and offset environments of the Sudbury Igneous Complex have made PGE the focus of new exploration in this...(Ontario), the Marathon deposit in the Coldwell Complex (Ontario), and the formerly producing Salt Chuck...gabbros, cover another aspect of the Coldwell Complex mineralization. The mineralization they describe...Bird River Belt. The PGE deposits in the Bushveld Complex (South Africa) are the subject of two papers. In...and Rh (in the ratio 11:8:1) from the Bushveld Complex for all future demands.” Barnes and Maier, on the |  | | Book (volume) | | Department of Geology, University of Florida, USA PERGAMON PRESS OXFORD NEW YORK SEOUL TOKYO U...The first of these is the one that contains the iron ores of central Sweden in which the numerous ore...contained catalyzers a n d inhibitors (such as N H 3 , iron minerals, and silica gels) in the hydrothermal fluid...profitable industry in Ireland. Copper, sulfur, and iron were recovered from the Avoca area as early as the...lead at Glendalough and for copper in the west of County Cork. Considerable prosperity in mining continued |
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