 | | Journal (article/letter/editorial) | | Ophiolite Copper Occurrence ERICH U. PETERSEN Department of Geological Sciences,The University of Michigan...College,Hanover, New Hampshire03755 Abstract The Oxec copperdepositof Upper Cretaceousage lies in the...serpentinitebody that makes up the Sierra de Santa Cruz, Guatemala. Recognitionof the ore host rocks as chloritized...sulfide depositis of the ophiolite copper type. In the mine vicinity, the ultramafic-maficassemblage consistsof...Comparisonwith ocean-floortholeiites indicatesthat the Oxec assemblageis strongly enriched in Na20 and H20, |  | | Report (issue) | | ————•-——• ———• ———————————————————————————————— 1 Guatemala and Honduras ———————— -———————————— — ————————————...Geologic and simple Bouguer anomaly map of parts of Guatemala and Honduras -——————•—————-———————————————————————————————...——————————————— 9 6 Generalized crustal model across Guatemala ————————————————————— 11 .7 Simple Bouguer...olivine - clinopyroxene - magnetite; and (4) they typically contain magnetite-rich pyroxenite dikes, amphibolitized...They further noted that deposits of titaniferous magnetite, native platinum, platinum sulf ides, and high- |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY U.S. GEOLOGICAL SURVEY-INGEOMINAS MINERAL...molybdenite and pyrite, the other rich in gold and magnetite. Some deposits have no recoverable gold or molybdenum...identifying such high level igneous environments. Magnetite, in veinlets and disseminations associated with...or oxidation of magnetite) surrounding a magnetic high caused by the abundant magnetite in the copper...may be useful in location of both sulfide and magnetite-rich zones, especially induced polarization (IP) |  | | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY U.S. GEOLOGICAL SURVEY-INGEOMINAS MINERAL...Norte Cty, CA Santa Helena, Antioquia, Colombia Goto Mine, Luzan, P.I. References Wells, F. G. et al 1946...Types Dunite, wehrlite, harzburgite, pyroxenite, magnetite-hornblende pyroxenite, 2 pyroxene gabbros, hornblende...gabbro, hornblende clinopyroxenite hornblende magnetite clinopyroxenite, olivine gabbro, norite, tonalite...native gold, PGE arsenides. Assemblage 2: Ti-V magnetite, Pt-Fe alloys, Os-Ir alloys, cooperite, sulfides |  | | Journal (article/letter/editorial) | | pyrite, quartz, kaolinitc,epidote, paragonitc,magnetite,sphalerite,phlogopite,al- bite, tremolite,minnesotaitc...16) resultsin precipitation of quartz,pyrite, magnetite,sphalerite,chalcopyrite,and acanthite.Mixing of...The ongoingprecipitationof epidote,paragonitc,magnetite,and phlogopiteat a mole rate lessthan the rate...(Bischoffand Dickson, taite-paragonitc - phlogopite - magnetite- pyrite- sphal- 1975;Seyfriedand Bischoff,1981;Mottl.../ .;I I iiil • ß i 20 SEAWATER / BASALT MAGNETITE ',',ilJl• i•! iIi I i0 • iJ ,,,I UI _11 |  | | Report (issue) | | United States Department of the Interior Geological Survey Modelos de Yacimientos Minerales For Dennis...mineral de tamaflo suficientemente grande y de ley tan alta que, bajo las circunstancias mas favorables, se...sobre las concentraciones metaliferas grandes y de alta ley nos asista en el conocimiento de otras ocurrencias...para los tipos de depositos multiples (Canada Department of Energy, Mines and Resources, 1980; DeYoung...Cu'mulo de ferrogabro haata diorita Capas de magnetite ricas en Ti y Y (Fe-Ti-YtipoBushveld) Cu'mulo |  | | Report (volume) | | West 920 Riverside Ave. WASHINGTON, D.C.--U.S. Department of the Interior Bldg., Rm. 2650, 1849 C St.,... U.S. GEOLOGICAL SURVEY BULLETIN 1693 U.S. DEPARTMENT OF THE INTERIOR MANUEL LUJAN, JR., Secretary...volcanic-hosted magnetite, by Dennis P. Cox 172 Grade and tonnage model volcanic-hosted magnetite, by Dan L...of volcanic-hosted magnetite deposits 173 Iron grades of volcanic-hosted magnetite deposits 174 Phosphorus...Phosphorus grades of volcanic-hosted magnetite deposits 174 Tonnages of carbonate-hosted Au-Ag deposits 177 |  | | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY GEOLOGIC AND GRADE-TONNAGE INFORMATION ON... sphalerite, galena, pyrite, pyrrhotite, and magnetite. Silver, gold, bismuth, tin, cobalt, or other...LEUCOXENE LIMONITE LINNAEITE LUZONITE MACKINAWITE MAGNETITE MAGHEMITE MALACHITE MARCASITE MELANTERITE MENEGHINITE...HILL ORIJARVI OSBOURNE LAKE OSHIO OSTRA HOGKULLA OXEC PABINEAU RIVER PARONEN PARYS MTN PASUQUIN PATER...Agriculture and Natural Resources and Geological Survey Department, p. 117-128. Adams, R. L., Burton, C. C. J., |  | Doebrich, Jeff L., Albino, G.V., Barker, C.E., Duffield, W.A., Dunn, V.C., Hanna, W.F., McFarlan, J.P., McGuire, D.J., Miller, M.S., Peters, S.G., Plouff, Donald, Raines, G.L., Sawatasky, D.L., Spanski, G.T. (1994) Resource assessment of the Bureau of Land Management's Winnemucca District and Surprise Resource Area, Northwest Nevada and Northeast California. Open-File Report Vol. 1994 (94-712) US Geological Survey doi:10.3133/ofr94712 | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY RESOURCE ASSESSMENT OF THE BUREAU OF...Rock National Conservation Area), and the impact of mine dewatering on drainage basin groundwater resources...public lands from mineral entry, and the impact of mine dewatering on drainage basin groundwater resources...past decade has created concern about the impact of mine dewatering on groundwater resources in this region...deposits Iron skarn deposits Volcanic-hosted magnetite deposits Polymetallic vein deposits Polymetallic |  | | Book (edition) | | our investment to be secure. N. A. Ross Mining Department First Bank Tower First Canadian Place Toronto...06-096712 Engineering Divisions : alee N.J., Calgary, Alta., Houston, London, Paris, The Hague, Wiesbaden,...Union. And, looking ahead, a study by the federal Department of Energy, Mines and Resources projects an overall...immense a escent Metalaericesa(nighsSwlOWS)imase) MINe@talseX OO Gummer oe A, MineraleeroductionsbVaGlaSSa...Dene 339 16 CANADIAN MINES HANDBOOK—1977-78 MINE CONSTRUCTION and REHABILITATION e Shaft Rehabilitation |  | | Report (issue) | | SURVEY 1981 CIRCULAR 858-A United States Department of the Interior JAMES G. WATT, Secretary Geological...---------------------------------------------Guatemala ---------------------------------------------..."Metallo" derives from the Greek "metalleion"-a mine, after "metallan"-to search for; hence, metallogenic...in L'Esterel, Quebec, Canada, in 1967 and in Guatemala City in 1969 to resolve remaining problems of...used ones, giving alternative names or principal mine or mines where they may help the user identify the |  | | Book | | Associations and Deposits PARTB Peter Laznicka Department of Earth Sciences, University of Manitoba, Winnipeg...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...author. localities (e.g. the large Marcona zone of magnetite bodies replacing Jurassic marine limestones at...Batholith and intersecting the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite |  | | Book | | Associations and Deposits PARTB Peter Laznicka Department of Earth Sciences, University Man. R3T2N2,...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...i localities (e.g. the large Marcona zone of magnetite bodies replacing Jurassic marine limestones at...Batholith and intersecting the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite |  | | Book | | their hard work and dedication. Brian J. Skinner Department of Geology and Geophysics Yale University New...Processes in Geologic History Charles Meyer Department of Geology and Geophysics, University of California...base of the Complex (Vermaak, 1976). At the Atok mine, platinoid minerals tend to occur at the boundaries...for kimberlites. Morphologically, titaniferous magnetite and ilmenite deposits are broadly analogous with...with chromite de¬ posits. Titaniferous magnetite cumulates are common in the anorthositic zones of layered |  | | Report (issue) | | and subdivisions) 1981 858-B United States Department of the Interior JAMES G. WATT, Secretary Geological...Greenland---------------------------- GLGL ________ _ 25 Guatemala --------------------------- GTGT ________ _ 26...(HIDDEN CREEK AND BONANZA MJNE) APEX ARGONAUT MINE ASHLOO MINE ASITKA PEAK (ASITKA) ASPEN GROVE AREA ASTLAIS...BARRINGTON RIVER AREA BASQUE BAYONNE MINE BEAVERDELL AREA (HIGHLAND-BELL MINE, ETC.) BENSON RIVER AREA (EMPIRE...BETHLEHEM MINE, VALLEY, ETC. BIRCH ISLAND (REXSPAR) BLACKHORN MOUNTAIN BLUE GROUSE MINE BLUEBELL MINE COMMODITIES |  | | Report (issue) | | highest-lying diamond pipe. Commissioning Letseng mine at 10 500 feet during the last two years has called...Whatever you're mining, wherever you're mining, mine it on Bridgestones Bridgestones — for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever you’re mining, wherever you’re mining, mine it on Bridgestones. iaaseinn Money — BRIDGE STONE...Finland France Gabon Gambia Ghana Greece Greenland Guatemala Guinea Guyana Haiti 463 Holland Honduras Burma |  | | Journal (issue) | | topics 124 . Principal Editor R. A. H O W I E Department of Geology Royal Holloway & Bedford New College...Zn, Cu, Mo. W and Ti. Au occurs at King Solomon's mine at Mand adh Dhahab. Also illustrated are olivine...90M/0193 A H R E M study o f the intergrowlh o f magnetite and coulsonite. Y. G. Wang. H . Q. Ye, L . L....Crystallographic°. A45(4), 1989, pp 264-268. Magnetite f r o m Sichuan Province, C h i n a , h a s been...[1101 structure images reveal a n intergrowth o f magnetite with coulsonite as lamellae normal t o the [ 1101 |  | | Book | | manuscripts, and tile secretcJn.il ,rnff nl the Department ol Earth Sciences at the Open Un iversity for...Oceanography, La .Jolla, CA 92093, USA. J. S. McCLAIN, Department of Geology, University of Caldornia, Dav 1~,...Ophioli1e S1'111pos111m, C,•pr11s, Geological Survey Department. ieos1a, Cyprus. 182-92 pp. CANN,J, R. 1974....acknowledge the assistance of Mr M. Kassim of the Department or Petroleum and Minerals, Muscat; and the government...2756-62. J. D. SMcWING, Earth Resources Institute, Department of Geology, University College of Swansea, Swansea |
|
