 | | Report (issue) | | 11 The metamorphic belts of Ecuador The metamorphic belts of Ecuador CQVer photograph Cerro Hermoso... OVERSEAS MEMOIR 11 The metamorphic belts of Ecuador M Litherland,] A Aspden and RAJemielita Keyworth...andjf.MIEl,ITA, RA. )994. The metamorphic belts of Ecuador. Overseas Memofr of the British Geologi-cal Survey...7 Andean metallogenesis 9 Metamorphic rocks of Ecuador l0 Stratigraphical nomenclature 10 Metamorphic...Formation 22 Chapiza unit 22 Misahualli unit 22 Zamora granit.oids 24 Salado terrane 27 Upano unit 27 |  | Chiaradia, Massimo, Vallance, Jean, FontbotĂ©, Lluis, Stein, Holly, Schaltegger, Urs, Coder, Joshua, Richards, Jeremy, Villeneuve, Mike, Gendall, Ian (2009) UâPb, ReâOs, and 40Ar/39Ar geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic metallogenic belt of the Northern Andes. Mineralium Deposita, 44 (4) 371-387 doi:10.1007/s00126-008-0210-6 | Journal (article/letter/editorial) | | geochronology of the Nambija Au-skarn and Pangui porphyry Cu deposits, Ecuador: implications for the Jurassic...southeastern Ecuador. Nambija has been one of the main gold-producing centers of Ecuador since the 1980s...ores (average 15 g/t, but frequently up to 300 g/t Au). Pangui is a recently discovered porphyry CuâMo...in southeastern Ecuador is dominated by the I-type, subduction-related, Jurassic Zamora batholith, which...intrudes Triassic volca- nosedimentary rocks. The Zamora batholith is in turn cut by porphyritic stocks |  | Markowski, AgnĂšs, Vallance, Jean, Chiaradia, Massimo, FontbotĂ©, LluĂŹs (2006) Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador. Mineralium Deposita, 41 (4) 301-321 doi:10.1007/s00126-006-0062-x | Journal (article/letter/editorial) | | gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador Received: 24 February 2005 / Accepted:...gold skarn deposit is located in the northern part of the Nambija gold district, southern Ecuador. It has...which are named from north to south: Cuerpo 3, Mine 1, Mine 2, and Southern Sector. Massive skarn bodies...intrusion which crops out below the skarn bodies in Mine 2 and the Southern Sector. Endoskarn alteration...zone is centered on two 060° trending faults in Mine 2, where the highest gold grades (5â10 g/t) were |  | Vallance, Jean, FontbotĂ©, LluĂs, Chiaradia, Massimo, Markowski, AgnĂšs, Schmidt, Susanne, Vennemann, Torsten (2009) Magmatic-dominated fluid evolution in the Jurassic Nambija gold skarn deposits (southeastern Ecuador) Mineralium Deposita, 44 (4) 389-413 doi:10.1007/s00126-009-0238-2 | Journal (article/letter/editorial) | | Jurassic Nambija gold skarn deposits (southeastern Ecuador) Jean Vallance & LluĂs FontbotĂ© & Massimo Chiaradia...Piuntza unit in the sub-Andean zone of southeastern Ecuador. The skarns consist dominantly of granditic garnet...relatively deep setting at about 4-km depth. As in other Au-bearing skarn deposits, not only the prograde stage...fluids . Oxygen isotope . Chlorite . Nambija . Ecuador Introduction Skarns are an important source of...Most of these skarns contain <1 g/t Au, although in Cu-rich ores Au can reach higher grades (Meinert 2000) |  | Chiaradia, M., Tripodi, D., Fontbote, L., Reza, B. (2008) Geologic Setting, Mineralogy, and Geochemistry of the Early Tertiary Au-Rich Volcanic-Hosted Massive Sulfide Deposit of La Plata, Western Cordillera, Ecuador. Economic Geology, 103 (1) 161-183 doi:10.2113/gsecongeo.103.1.161 | Journal (article/letter/editorial) | | Tertiary Au-Rich Volcanic-Hosted Massive Sulfide Deposit of La Plata, Western Cordillera, Ecuador M. CHIARADIA...B. REZA SULTANA DEL CONDOR MINERA S.A., Isabel La CatĂłlica No. 882 y Cordero, Quito, Ecuador Abstract...Cordillera of Ecuador, with preliminary estimated reserves of 840,000 metric tons (t) at 4.8 g/t Au, 54 g/t...g/t Ag, 4.1 percent Cu, 0.7 percent Pb, and 4.2 percent Zn. Like the other VHMS deposits of the Western...VHMS vertical zonation, from bottom to top, of a pyrite stockwork, disseminated sulfides, massive sulfide |  | | Journal (article/letter/editorial) | | Neoproterozoic-Early Cambrian) magmatic arc; in the other deposit types lead isotopes have more restricted values...terranes and the entire Western Mediterranean province, which are characterized by lengthy crustal histories...replacements, magmatic Ni-(Cu) deposits, and Cu-(Au-Bi) veins, making the Ossa Morena zone differ metallogenically...illustrate how the juxtaposition of many different deposit types in a small area can reflect a complex history...occurrences in the Ossa Morena zone. Only the Cala iron mine is currently (2004) operating, but the area has |  | | Report (issue) | | Mineralogic and Grade-Tonnage Information on Low-Sulfide Au-Quartz Veins by James D. Bliss and Gail M. Jones............................. 1 Definitions of deposit............................................. 1...and mineralogy of deposits classifed as lowsulfide Au-quartz veins were compiled for deposits found throughout...nonsulfide mineralogy, gold and silver grades and deposit tonnage. A discussion of ore mineralogy of these...tables 1 and 2. Data on 357 deposits, including deposit name, country, local geographical area, mineralogy |  | | Journal (issue) | | ISSUE: âą Geology and mineralization of the President Mine, Bohemia mining district. Lone County, p. 123 âą... The geology and mineralization of the President Mine, Bohemia mining district, Lane County, Oregon by...Streiff, Geologist, Echo Bay Minerals Company, McCoy Mine, p.o. Box 1658, Battle Mountain, Nevada 89820 ...The geology and mineralization of the President Mine in the Bohemia mining district of Oregon are characteristic...characteristic of a complex volcanogenic epithermal deposit. Three major phases of faulting and five stages |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . Falcon gold mine . . . . . . . . . . . . . . . . . . . . . . . ....Elizabeth Lake deposit . . . . . . . . . .. . . . . . . . . . . . . . . . . McMillan Mine . . . . . . .... . . . . . . . . . . . . . . . . . . .. Massey mine .. .. . . . . . . . ..... ... .. . . . . . . . ...Pronto uranium mine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheney mine . . . . . . ...conglomerate) . . . . . . . . . . . . . . Havilah mine . . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | tungsten-tin mineralization from the Mon- teneme ore deposit forms a stockwork enclosed in two mica monzonites...mineralogical data enable to distinguish more than ten Bi-Pb-Ag-Sb-Se phases. The mineralized veins forming an elliptic...granites, play only the role of host rocks. This deposit confirms the importance of the apogranite model...d'identifier plus d'une dizaine de phases de Bi, Pb, Ag, Sb et Se. On montre que les filons min6ralis6s,...d'Ordenes et de Malpica Tuy, charrids sur le socle au cours de la premiere phase hercynienne. Lots de la |  | | Report (issue) | | 100 West Pender Street Vancouver, B.C. V6B IRS A deposit copy of this publication is also available for...Occurrences east of Sudbury Falcon Mine Wanup quarry Elizabeth Mine Wahnapitei occurrences MacDonald occurrence...quarry Vermilion River placer deposits Moose Mountain Mine Nickel-copper mines west of Sudbury High Falls Road...occurrence McMillan Mine Wallace Mine Sheguiandah quarry Shakespeare Mine Massey Mine Hermina Mine Elliot Lake...Bi-Ore Mine Pater Mine Pronto Mine Jasper conglomerate occurrences, Highway 546 Glagoma Mine Cheney Mine |  | Manteca, JosĂ© Ignacio, LĂłpez GarcĂa, JosĂ© Ăngel, Oyarzun, Roberto, Carmona, Carlos (2014) The beach placer iron deposit of Portman Bay, Murcia, SE Spain: the result of 33 years of tailings disposal (1957â1990) to the Mediterranean seaside. Mineralium Deposita, 49 (6) 777-783 doi:10.1007/s00126-014-0511-x | Journal (article/letter/editorial) | | 1007/s00126-014-0511-x NOTE The beach placer iron deposit of Portman Bay, Murcia, SE Spain: the result of...fractions, eventually forming a coastal placer iron deposit. A major problem for magnetic separation is the...Santiago, Chile Keywords Iron ore . Beach placer deposit . Magnetite . Portman Bay . La UniĂłn . Spain Introduction...perspective, something unusual happened: a placer iron deposit Miner Deposita Fig. 1 a Geology and ore deposits...Press media indicates that there is a decision to mine the Portman beach iron-rich sands through a joint |  | | Report (issue) | | Molybdenite _________ ____ _________ ______ ___ Pyrite ____________________________________ _ 4 4 5...Hill mine ________ . :. __________ .:. Other eastward-dipping veins_____________ Boundary mine ___ .:...westward-dipping veins____________ Golden Center mine ____________________ ~ ____ History and product...west side of the granodiorite area-Con. North Star mine-Continued. Yvein________________________________... Cassidy, and Linden veins______________ Empire mine ___________________ -----------History and prod |  | | Report (issue) | | . . . . . .... . . . . . .. . .. . .. 135 Ferro mine........... . . . . . ... . . . . . . . . . . . ...Joan NO.3 mine ........ , . . . . . . . .. . ..... . . . . . . . . ... . .. 137 Algoma mine ............................................. 139 Hillcrest mine.. . . . . . . . . . . . . . . . . . . . . . . ..... 141 Pennington mine...................................... 142 Arnlour No. 1 mine. . . . . . . . . .... . . . . . . . . . . . . . . . . . 144 Ironton mine. . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | over 1.7 billion tonnes of Ni, Cu, Co, Pt, Pd, Au, Ag ore (Lydon, 2007). The polymetallic ore is hosted...of this issue (Map 1) and is linked to mineral deposit-commodity and geochronology data in Tables 1 and...Pond showing no. 2 8 Lot 11, Con 3 9 Agnew Lake mine 10 11 Lot 10, Con 2 12 Ministic Creek, Lot 10, Con...15 Ryanor, Alanen And Maki 16 Lot 8, Con 3 17 Sultana 18 Robb Farm, Se 1/4, S1/2 Lot 7, Con 1 19 Garrison...Ontario Mineral Deposit Inventory Ontario Mineral Deposit Inventory Ontario Mineral Deposit Inventory Ontario |  | | Report (issue) | | of Use. Content: This Content is offered by the Province of Ontarioâs Ministry of Northern Development...DĂ©veloppement du Nord et des Mines (MDNM) de la province de l'Ontario. Les recommandations et les opinions...lĂ©gale de quelque nature que ce soit en ce qui a trait au contenu. Liens vers d'autres sites Web : Ce contenu...concernant l'un de ces sites doivent ĂȘtre adressĂ©s au propriĂ©taire du site. Droits d'auteur : Le contenu...recommandons de faire paraĂźtre ainsi toute rĂ©fĂ©rence au contenu : nom de famille de l'auteur, initiales, |  | Tornos, Fernando, Galindo, Carmen, Casquet, CĂ©sar, RodrĂguez Pevida, Luis, MartĂnez, CĂ©sar, MartĂnez, Enrique, Velasco, Francisco, Iriondo, Alexander (2006) The Aguablanca Niâ(Cu) sulfide deposit, SW Spain: geologic and geochemical controls and the relationship with a midcrustal layered mafic complex. Mineralium Deposita, 41 (8) 737-769 doi:10.1007/s00126-006-0090-6 | Journal (article/letter/editorial) | | 1007/s00126-006-0090-6 ARTICLE The Aguablanca Niâ(Cu) sulfide deposit, SW Spain: geologic and geochemical controls and...Niâ(Cu) sulfide deposit is hosted by a breccia pipe within a gabbroâdiorite pluton. The deposit probably formed...complex crop out about 50 km southwest of the deposit in a tectonically uplifted block (Cortegana Igneous...geological features of igneous rocks in the Aguablanca deposit and the Cortegana Igneous Complex indicates that...Complex were not the direct source of the Aguablanca deposit. Crustâmagma interaction was a complex process |  | | Book | | acid-free paper Springer International Publishing AG Switzerland is part of Springer Science+Business...Iberian Pyrite Belt and Ossa Morena Zone Introduction and Geological Setting of the Iberian Pyrite Belt...Forsudetic monocline in Poland-Germany, the Iberian Pyrite Belt and the Ozza Morena zone in Spain-Portugal...Caledonian Precambrian Major metallic mineral deposit Chapters 5 and 6 56° 48° Chapters 7 and 8 40°...geological modelling, not only in deposit scale, but also in semi-regional (near mine) and regional (mineral belts) |  | | Book | | THE EMPIRE MINE 1850â1956 E.W. McQuistTon, J R, GOLD: THE SAGA EMPIRE OF THE MINE 1850â1956 ...McQUISTON, JR. BX EMPIRE MINE PARK 1986 ASSOCIATION © 1986 Empire Mine Park Association All rights...(Placer Gold) Discovery of Lode Gold and the Empire Mine Mining Equipment Development Geology Grass Valley...of the Empire Veins Early History of the Empire Mine Owners and Stamp Mill Problems The âGrass Valley...Returns to the Empire North Star Mine Historical Background Pennsylvania Mine Acquired by Empire The Empire |  | | Report (volume) | | _ 102 H'onghton group_______.._______ 103 Sultana group___________________________ Corbin mine__...mines and prospects 06 X. A, Smelter, tramway, and mine workings on Copper Mountain; .8, Surface workings...crest of Copper Mountain_____ OS XI. A, Stevenstown mine workings, showing ore body; J), Hadley, showing...1_ 194 Fie. 1. Map of Kasaan Peninsula, showing mine locations. _ _ 309 2. Map showing properties of...__ 113 8. Plan and cross section of Mount Andrew mine workings, showing positions of ore bodies_________________________ |  | | Report (issue) | | 12 figs. Price 35tf. 28. Geology of the Mammoth mine, Shasta County, California, b; A. R. Kinkel, Jr...75*. Geology and ore deposits of the Afterthought mine, Shasta County, California, by John P. Albers. 1953...75*. 37. Geology of the Palen Mountains gypsum deposit, Riverside County, California, by Richard A. Hoppin...filling in figs. 16. Geology of the Shasta King mine, Shasta County, California, by A. R. Kinkel, Jr...Suggestions for exploration at New Almaden quicksilver mine, California, by Edgar H. Bailey. 1952. 4 pp., 1 |  | | Report (issue) | | mineral localities, with the minerals found at each mine or locality. Most mining districts and mineral localities...whole, along with those for which the specific area (mine, for instance) is not known. Other minerals, however...molybdenite, powellite, pyrite. Black Rock mine - specular hematite. Galena mine - galena. Iron Mountain...Mountain Pass deposits - hematite. Skylark mine - azurite, calcite, chalcopyrite, chrysocolla, copper, cuprite...garnet, hematite, malachite, magnetite, muscovite, pyrite. West Spring - brucite, ciinohumite, ludwigite |  | | Journal (article/letter/editorial) | | iron formation in irregular bands with some brown auâą green slaty layers. IV 20 - 80 Magnetite-banded...SAGAMORE MINE LEGEND Recent Anirnikie FIGURE 4 MAHNOMEN âą1 MINE-(J), AND THE SAGAMORE MINE-(K). CUYUNA...,âą ;: ;' âą ;âąS,' ON IRON RANGES FIGURE 5 SULTANA-HOPKINS AND MANGAN-STAI IRON MINES-(d) CUYUNA RANGE... PITTSBUR6H ORE CO., 1962. MAP AL (1957âą, AND MINE PACIFIC CO. & THE 1344 D. T. A. SYMONS TABLE...were oriented by means of topographicfeatures on mine maps or other surveyedsheetseither by eye or with |  | | Report (volume) | | ....... Orlente Province..................................... Plnar del Rio Province.................................. Las Villas Province and Isla de Plnos................ Economic geology.................limestone, Charco Redondo mine, Oriente, Cuba....... 23. A, Granzon from La Cuca mine, Pinar del Rio, Cuba...oxides, Charco Redondo mine, Oriente, Cuba....... 24. Plan and section of La Yeya mine, Oriente, Cuba.......Unica mine, Oriente, Cuba........................................ 8. Plan of La Estrella mine, Mafo, |  | | Journal (article/letter/editorial) | | Northwest Cape, South Africaa possible Besshi-type deposit G. J. Geringer, J. J. Pretorius and F. H. Cilliers...Bloemfontein Abstract. A low-grade, copper-iron sulfide deposit is present at Boksputs in the Northwest Cape, South...belt. The mineralization, which is dominated by pyrite, chalcocopyrite, sphalerite, and magnetite, occurs...mineralization is a syngenetic, strata-bound, copper-iron deposit which to some extend resembles Besshi-type deposits...A low-grade, strata-bound, copper-iron sulfide deposit occurs within the amphibolites and associated gneisses |
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