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Platinum- and palladium-bearing minerals in serpentinites from southwestern Blue Mountain area, JamaicaBy A. C. Dunham, Y. D. Drakapoulos, P. W. Scott
The Pt and Pd occur alloyed with copper in small, irregularly-shaped grains, 0.25-5.0 micrometers in maximum dimensions. Grains of unalloyed native copper are also present. The grains are completely s
Jun 14, 1905
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Platinum-Based Alloys For High Temperature And Special ApplicationsBy L. A. Cornish, L. H. Chown, S. N. Prins, R. Süss, L. Glaner, A. Douglas
Platinum-based alloys are being developed for high temperature and special applications for good corrosion and oxidation resistance. The microstructures are similar to those of nickel-based super allo
Jan 1, 2004
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Platinum-Bearing Magmatic Rocks of the Southern Brook Street Terrane, South Island, New ZealandBy J Mavrogenes, C J. Spandler, S M. Eggins, K Worden
Major occurrences of platinum group minerals (PGM) are in crustally-contaminated, huge, layered igneous complexes (Bushveld and Stillwater) and gabbroic intrusions (Norilsk); relatively minor occurren
Jan 1, 2005
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Platinum-Group Element Deposits"10.1. IntroductionAs discussed by Westland (1981), the six platinum-group elements (PGE) belong to the Group VIII transition metals, to which iron, nickel and cobalt also belong. The chemical similar
Jan 1, 1979
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Platinum-Group Element Ore Forming Process In Mafic Layered Intrusions: Geochemical Evidence From The Stillwater Complex, MontanaBy David D. Lambert
REE analyses of cumulate plagioclase from the PGE ore zone of the Stillwater Complex indicate that pressure fluctuations in the magma chamber acting on a single magma can- not be responsible for featu
Jan 1, 1981
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Platinum-Group Element Ore-Forming Process in Mafic Layered Intrusions: Geochemical Evidence From the Stillwater Complex, Montana (11b66979-cb83-4bb9-8552-8a5b7a5600cf)By D. D. Lambert, E. C. Simmons
Rare earth element (REE) analyses of cumulus plagioclase from the PGE ore zone of the Stillwater Complex indicate that pressure fluctuations in the magma chamber acting on a single magma cannot be res
Jan 1, 1984
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Platinum-group elements in Fox River Sill, Manitoba, Canada: implications with respect to influxes of fresh magma and exploration for PGE depositsBy O. R. Eckstrand, M. Asif, P. L. Schwann, A. J. Naldrett, R. J. F. Scoates
Paper presented at the IAGOD international symposium on mineralisation related to mafic and ultramafic rocks, held in Orleans, France, 1-3 September 1993. PGE-bearing sulphide mineralisation is contai
Apr 1, 1994
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Platinum-Group Elements in the Tonsina Ultramafic Complex, Southern AlaskaBy J. Y. Foley
Platinum-group elements (PGE) are preferentially associated with chromian spinels, including high-iron chromite, magnesian-chromian hercynite, and chromian magnetite in clinopyroxene-rich upper strati
Jan 1, 1987
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Platinum-Group-Metal Occurrence in New ZealandPlatinum Group metals have been known in New Zealand since the 1880's but not produced on a large scale. They have been neglected because their value was not appreciated rela- tive to gold and
Jan 1, 1987
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Platinum-Group-Metals, Gold, And Chromium Resource Potential Offshore Of Platinum, AlaskaBy James C. Barker
Concern over the availability of domestic critical and strategic mineral supplies has led the Bureau of Mines to evaluate the reserve development potential of alternative sources in Alaska. Near the v
Jan 1, 1986
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Platinum-Palladium Concentrate Smelting and Pressure LeachingBy R. W. Bartlett
A two step process for treating platinum group metal flotation concentrates Is described while experimental results. The process was designed to be simple and Inexpensive While yielding a high recover
Jan 1, 1989
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Platinum-Tungsten AlloysBy Herluf P. Nielsen, Robert I. Jaffee
IN recent years much attention has been given to high-melting alloy systems, It has been of interest in this respect to investigate the alloys of platinum and tungsten, which were known from the liter
Jan 1, 1948
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Platinum: The view from South AfricaBy F. Feichtinger, M. Riess, A. Lammer
Introduction This article discusses the unique range of properties of platinum and its applications as a high technology metal. World reserves of this strategic and precious metal are confined mostly
Jan 2, 1988
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PlatinumII/IV And RhodiumIII Chemistry Viewed Through New Eyes: What New Secrets Can 195Pt And 103Rh NMR Spectroscopy Reveal About Speciation As Relevant To Refining Solutions?By K. R. Koch
Although some of the platinum(II/IV) and rhodium(III) chemistry is considered ?old? and well-known, the application of modern multinuclear NMR spectroscopic methods to this chemistry in solution revea
Jan 1, 2012
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PlatMine pillar strength formula fornthe UG2 ReefBy B. P. Watson, D. P. Roberts, R. A. Lamos
The Upper Group 2 (UG2) chromitite reef is a shallow-dipping stratiform tabular orebody in the South African Bushveld Complex, which strikes for hundreds of kilometres. Mining is extensive, with depth
Aug 1, 2021
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Plattsburgh Paper - Note on a Collection of Tertiary Fossil Plants from Potosí BoliviaBy N. L. Britton
About two years ago Dr. Newberry referred to me for study a considerable collection of fossil plants sent him by Dr. Arthur F. Wendt, engineer of the silver mines " El Cerro Rico de Potosi" in Bolivia
Jan 1, 1893
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Playing Fields: Level And OtherwiseBy M. Rieber
Building on earlier work, an analysis relevant to international (Australasian) minerals trade is developed which accounts for both the impetus of globalization and national reaction or protection. At
Jan 1, 2002
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Playing The Odds In Rock MechanicsBy Gregory B. Baecher
Rock engineering involves uncertainties which are large and difficult to quantify. The traditional design approach to these uncertain- ties has been conservatism, and has been satisfactory to the exte
Jan 1, 1982
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Playing To Win: Collecting Environmental Data During Exploration And Focusing On Political CommunicationsBy D. W. Struhsacker
Mineral exploration has evolved into a sophisticated science which uses powerful scientific tools to make mineral discoveries. In addition to their usefulness in performing mineral exploration, these
Jan 1, 1994
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Plaza Renovation over Boston’s Oldest Tunnels Presents Unique ChallengesBy Jacob Blake, Dan Dwyer, Tulin Fuselier
The recent renovation of Boston City Hall’s Plaza, one of Boston’s premier public meeting spaces, involved heavy construction and grade changes over the country’s two oldest subway tunnels, built in 1
Oct 31, 2023