 | | 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) | | βββββ’-βββ’ ββββ’ ββββββββββββββββββββββββββββββββ 1 Guatemala and Honduras ββββββββ -ββββββββββββ β ββββββββββββ...Geologic and simple Bouguer anomaly map of parts of Guatemala and Honduras -βββββββ’βββββ-βββββββββββββββββββββββββββββββ...βββββββββββββββ 9 6 Generalized crustal model across Guatemala βββββββββββββββββββββ 11 .7 Simple Bouguer...Late Mesozoic in age, although some bodies in Guatemala, Colombia, and Venezuela may be older. Furthermore...clockwise fashion, starting with Guatemala and Honduras. Guatemala and Honduras Serpentinite, serpentinized |  | Zaw, Khin, Gemmell, J.B., Large, R.R., Mernagh, T.P., Ryan, C.G. (1996) Evolution and source of ore fluids in the stringer system, Hellyer VHMS deposit, Tasmania, Australia: evidence from fluid inclusion microthermometry and geochemistry. Ore Geology Reviews, 10 (3) 251-278 doi:10.1016/0169-1368(95)00026-7 | Journal (article/letter/editorial) | | housed in the University of Tasmania (Geology Department) collection. 3.1. Method of study A Fluid Inc...in sphalerite have been reported in the Fukazawa mine, Hokuroko district, Japan (Foley, 1986). Sphalerites...e et al. (1989) recorded anhydrite, dolomite, hematite and chlorite daughter min- The composition of...temperatures (250-357Β°C) fluids at the Oxec copper deposit from Guatemala. Earlier studies of the Cyprus deposits...wt% at the ophiolitehosted copper deposit in Guatemala. Spooner and Bray (1977) and Spooner (1981) recorded |  | 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...(Domain 12). The nearest well-explored deposit, Oxec in Guatemala (Peterson and Zantop, 1980), apparently is...deposits being mined at Cerro Matoso, in the department of Cordoba, contain 2.6 percent Ni, 0.06 percent...Peterson, E. U., and Zantop, Half, 1980, The Oxec deposit, Guatemala: an ophiolite copper occurrence: Economic...is continental or transitional Skarn Cu (2.6) Mine Vlejs Los Guayabas (Tollma) Cranates (Hulla) Also |  | | 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...DESCRIPTION Ore Minerals; Chalcopyrite+pyriteΒ±hematiteΒ±magnetiteΒ±borniteΒ±pyrrhotiteΒ± molybdeniteΒ±tennantiteΒ±gold...Fe in the stringer zone. 17 Examples Ox.ec (Guatemala) Limi, (Cyprus), York Harbor, (Canada) Turner-Albright...Stratabound and veins Red coloration due to fine hematite Ore Controls Flow top breccias, amygdules, fractures |  | | Journal (article/letter/editorial) | | te(with decreasingwater/rock ratio):chlorite, hematite, pyrite, quartz, kaolinitc,epidote, paragonitc...steadyincreaseof Fe from basalttitration resultsin hematite precipitationat A. The disappearance of brucite...constant reductionto sulfideby precipitationof hematite. As aMg+2; a result,anhydrite beginsdissolving...2 0 0 0 11 9 6 0 0 Anhydrite 18 16 Hematite 15 15 Quartz Pyrite 11 1.0 25 27 28 28 25...highwater/ rock ratioswhere the chlorite, pyrite, and hematite _ chrysotile_+quartz_+kaolinitc occur. At a high |  | | 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...based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...useful sources for multiple deposit types (Canada Department of Energy, Mines and Resources, 1980; DeYoung |  | | Journal (article/letter/editorial) | | 559 560 JONES ET AL. FIG. 5. Map of the Battle mine, showing the underground sampling sites of siliceous...thick occur in the southern and eastern parts of the mine property, in the South Flank and Thelwood Valley...and the overlying laminated argillite in the HW mine (23 Shop). section, abundant detrital quartz and... Map of the distribution of chert in the Battle mine area in plan view projected to surface (Jones, 2002)...spheroidal pyrite (py) (XPL, SJ670, 23 Shop, west HW mine). C. Typical texture of black chert with carbonaceous |  | | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY GEOLOGIC AND GRADE-TONNAGE INFORMATION ON...GRAPHITE GRAMMATITE GREENOCKITE GUDMUNDITE GYPSUM HEMATITE HESSITE HORNBLENDE IDAITE IDDINSSITE ILLITE ILMENITE...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.,...Agriculture and Natural Resources and Geological Survey Department, p. 751-757. Albers, John P., 1953, Geology and |  | 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...resources for the entire state, as part of a Department of Energy supported program. The NBMG is willing |  | | 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 HANDBOOKβ1977-78 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...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...joints ~~jr-*~z?Z. Joint pattern Ξ― Quarts veins ft Mine; fr-iron, Cwcefiper, m U.S. Homestead mmmww** Vehicle...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering |  | | 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...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering...cover sequences, and 1034 Fig. 28-14. Jessie gold mine, Breckenridge, Colorado. LITHOTHEQUE, after Ransome |  | | 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 β for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever youβre mining, wherever youβre mining, mine it on Bridgestones. iaaseinn Money β BRIDGE STONE...Finland France Gabon Gambia Ghana Greece Greenland Guatemala Guinea Guyana Haiti 463 Holland Honduras Burma |  | | 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...massive layers) of moΒ¬ saic-textured ilmenite-hematite are commonly part of plutonic anorthositic massifs...cumulates. It is not clear whether the ilmenite-hematite assemblage acquired its extra oxyΒ¬ gen during |  | | 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...poorly crystalline Fe oxide to gocthite and/or hematite. In natural systems the r a t e o f transformation...mineralogy. The existence o f both siderite a n d hematite as cementing materials w i t h i n t h e Kharita...90M/0192 E l e c t r o n density distribution in hematite ci-Fe.2O1 determined by precise X-ray diffraction |
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