 | Todd, S. G., Keith, D. W., Le Roy, L. W., Schissel, D. J., Mann, E. L., Irvine, T. N. (1982) The J-M platinum-palladium reef of the Stillwater Complex, Montana; I, Stratigraphy and petrology. Economic Geology, 77 (6) 1454-1480 doi:10.2113/gsecongeo.77.6.1454 | Journal (article/letter/editorial) | | KEITH, L. W. LE RoY, Stillwater PGM Resources, 1826 Grand Avenue,Billings,Montana 59102 D. J. SCHISSEL...SCHISSEL, Department of Geology,Universityof Montana, Missoula,Montana 59812 E. L. MANN, Manville International...0861-0128/82/77/1454-2752.50 1454 J-M REEF, STILLWATER COMPLEX 1455 reachedcontinuous saturationwith...Unconformlty :+•*-1Granitlc Intrusions iOetgJ•'--J Stillwater Complex • Metamorphic rocks • Fault • Thrust...gite cumulate is General Stratigraphy of the Stillwater Complex pbaC. Althoughconvenient,this systemdoesrequire |  | | Book | | Subsequent work by H.H. Hess and E.D. Jackson (Stillwater) and B.V. Lombaard (Bushveld) revealed problems...cycles. Similar cyclic units are present in the Stillwater, Great Dyke, Bushveld, Rum, Jimberlana, and other...the Merensky and J-M reefs in the Bushveld and Stillwater intrusions respectively, has also received much...Henderson, 1992), in most shallow magma chambers heat is lost mainly through the roof, while most accumulation...proposed for the formation of cyclic units in the Stillwater intrusion in which each cyclic unit begins with |  | | Journal (article/letter/editorial) | | Laflamme (1974) found up to 1.5 wt.% Pd in the Stillwater pentlandite material, whereas Todd et al. (1982)...analysis of pentlandite from the J-M Reef of the Stillwater Complex with up to 3.3 wt.% Pd, and an average...and 14,200 (13,648) ppm Pd in pentlandite from Stillwater (the values in parentheses are the alternative...with values of 0.08–0.51 wt.% Pd from another Stillwater sample set, and could not detect Pd in the Sudbury...ppm, for pentlandite from the J-M Reef in the Stillwater complex; the associated pyrrhotite has 8–56 ppm |  | | Report (issue) | | England Moscow, Russia London, Ontario Butte, Montana Modena, Italy Cape Town, Republic of South Africa...emplacement and solidification of the Stillwater Complex (Montana) are described and discussed by Zientek...Reef in the currently producing mines of the Stillwater Mining Company. The PGE mineralization in the...Platinum-Group Element Mineralization in the Stillwater Complex, Montana M.L. Zientek, R.W. Cooper, S.R. Corson...Barnes and Maier; Cawthorne et al., this volume), Stillwater Complex in United States (Zientek et al., this |  | | Report (issue) | | study area, Custer and Gallatin National Forests, Montana Edited by JANE M. HAMMARSTROM1, MICHAEL L. ZIENTEK2...Study Area, Custer and Gallatin National Forests, Montana U.S. Geological Survey Open-File Report 93-207...700 km2) of National Forest land in southwestern Montana adjacent to the northern part of Yellowstone National...elements. Mines in production in 1992 are the Stillwater mine (platinum, palladium, gold, rhodium, copper...exploration led to the discovery and development of the Stillwater mine and the discovery of gold-copper-silver |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book (volume) | | in elev. From 1,000’ on the eastern border with Montana and Iowa to 3,500’ along the western boundary with...rocks are exposed as thick bands around the entire mountain system. The rising granite mass intruded the famed...an inexhaustible supply of cold artesian, Rocky Mountain snow melt water. Harney Peak is the crest of the...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides |  | | Report (issue) | | observed in the gold gravels at Cherokee, Butte County, and this locality, became the most noted one in...short articles on California diamonds. A Amador County: few small stones have been picked up near the...towns of Volcano, Oleta and Fiddleto^vn. Butte County: In 1853 it was observed that diamonds occurred...Thompson Flat, two miles north of Oroville. El Dorado County: A diamond weighing 1| carats was found at Forest...in White Rock canyon and at Smith's Flat. Fresno County: Small diamonds are reported to have been found |  | | Book | | HfiRIN COUNTY FREE LIBRfiRY 311110G386652Q I V Russell P MacFal A COLOR TREASUF FOR COLLECTORS...to Hunting Locations ? i 9 GIVEN TO THE MARIN COUNTY LIBRARY BY MARI N L MTNF.RAT. SOCTETY DAVID...may be able to buy specimens. map of Keweenaw County. Mich- Part of the U.S. Geological Survey topographic...mines in betray a gold deposit Arizona and Montana, (Left) Quarry of In Val di Serra. Trentlno...derground. At the other great copper center, Butte, Montana, former un- derground mines have been opened to |  | | Report (issue) | | commercial borates. Lawsonite, first found in Marin county in 1895, has proved to be of great petrographic...nickel telluride, melonite, found in Calaveras County in 1867. New minerals and new mineral this is ...products. The gem-bearing pegmatites of San Diego County have aroused special masses, interest. Many ...short articles on California diamonds. A Amador County: few small stones have been picked up near the...recently, one of 21 carats near Plymouth. ; Butte County: In 1853 it was observed that diamonds occurred | | | Book | | topographic map of the Delaware q uadrangle o f Keweenaw County, Michigan This ,s an example o f the more picturesque...minerals that led to rich mines rn Arrzona and Montana 7 - (Left) Quarry 1n Val di Serra, Trenhno...underground. At the other great copper center, Butte, Montana. former underground mines have been opened to the...bound to discover marvelous walks in beautiful mountain country. filled with delightful views, and there...many climates th e best season to prospect on a mountain side is in the spring, when snow and ice have |  | | Report (volume) | | James M.D. Day Scripps Institution of Oceanography, USA Front-cover: Proton-induced X-ray emission maps...5251 Broad Branch Rd. NW Washington, DC 20015−1305 USA nbennett@ciw.edu Zoltan Zajacz 2 Department of...concentrations of PGE in sulfide horizons from the Stillwater and Bushveld complexes yield values of Di of...proposed to be an experimental artifact by Wood and Mountain (1991). The volatile/melt partitioning of IPGE...log diffusivity (D) of −10.7 m2/s, whereas Re was lost to the air more slowly (log D = −12.2 m2/s). Volatile/melt |  | | Book | | (SME) 8307 Shaffer Parkway Littleton, Colorado, USA 80127 (303) 973-9550 / (800) 763-3132 www.smenet...in his work, that he may know first of all what mountain or hill, what valley or plain, can be prospected...SECTION 9 CHAPTER 33 Mining of PGMs at the Stillwater Mine 2 9 9 D. Bray, A.C. Alexander, W. Strickland...Mini-rig for longhole drilling, Stillwater platinum mine, Montana, USA Shrlnkage Stoping In shrinkage...Kalamazoo ore body (Chadwick 1994; Snyder 1994) and Stillwater Mining Company in developing its original ore |
|
