 | | Journal (article/letter/editorial) | | Molybdenite Mineralization at the El Teniente Cu-Mo Porphyry Deposit, Chile Edward T. Spencer,1,† Jamie J...División El Teniente, Rancagua, Chile Abstract The El Teniente Cu-Mo porphyry deposit, Chile, is one...of diorite finger porphyries and the composite Teniente Dacite Porphyry. These units acted as effective...veins and breccias. These are abundant at shallow mine levels and show a close spatial relationship with...series of concentric faults associated with the Braden Breccia Pipe. Mineralization in this paragenetic |  | | Journal (article/letter/editorial) | | ARIAS Abstract Hypogenemineralizationin porphyry copper depositsis characteristicallyassociated with zones...the Chilean porphyry copperdepositsin the E1 Teniente (Braden), Rio Blanco, and Los Bronces (Disputada)...following conclusions, thoughbasedon the study at E1 Teniente, Rio Blanco, and Los Bronces,may alsobe applicableto...zonesof alteration commonlyassociatedwith porphyry copper mineralization. 3. Weathering doesnot affect the...at E1 Teniente. Due to this immobility of Rb, weathering of the potassic zone in porphyry copper depositsshouldnot |  | | Journal (article/letter/editorial) | | diagrammaticmodelsof four copper deposits--Utahcopper,Utah; Chino, New Mexico; Ray, Arizona, and Braden,Chilemshowmany...Bingham, stockworksand disseminationsof ore-grade copper sulfideslying within portions of an intrusive complexand...molybdenitemineralization lies within and below the copper zone. The mineral zones apparently cut across the...zones,possiblydome-like,were removedby erosion. At Braden,primary mineralizationis a sulfidestockworkin andesiteflows...been encountered. A general model of a porphyry copper deposit is suggestedby piecing together evidence |  | | Journal (article/letter/editorial) | | distribution of Rb near porphyrycopperdepositsin Chile showthat: (a) Positive Rb anomaliesexist in rocks... The mineralized interval consistsof a rhyolite mine its size and shape. lapilli tuff to tuff brecciahavinga...Potossic El i 386 Alteration of Docite of i I 200 I • ?•00 600 Porphyry I I 50 Teniente 100 ...the K/Rb ra- the rocks. Discussion Senecaand El Teniente deposit All of the 19 samplesfrom the Senecadepositcontain...alterationzonesnear the E1 Tenienteporphyrycopper depositin Chile where a substantialincreasein K and Rb and decreasesin |  | | Journal (article/letter/editorial) | | in the Melanesianregion,althoughover 30 porphyry copper prospects and occurrences are 145' 1 0ø 155ø 160'...Map showing the location of the Panguna porphyry copper deposit. 7O3 704 J. H. FORD other deposits...Panguna. The nature of the about 1 cm in dialneter. mine intrusives and their relationshipto both contem...grouped togetheras late, postperiod of intrusionin the mine region is considered tive assemblages K-silicate...selvagesco•nprisefrom most of total rock near •nine mine porphyries porphyriesto < 1% near outer limit of |  | | Journal (article/letter/editorial) | | NOTES ON COMMUNICATIONS .4 NON-GENETIC OF COPPER PAUL CL.4SSIFIC.4TION DEPOSITS GILMOUR INTRODUCTION...devisedfor depositsof othermetalsthan copper. PROPOSED CLASSIFICATION OF COPPER DEPOSITS A classification...intermediatecomposition.Examples:The "porphyry copper"depositsof the southwestern United Statesand of...depositsin brecciapipesat Cananaea,Mexico; E1 Teniente (Braden), Chile. Group5. Massivesulfidedeposits, commonlyconcordant...Group 6. Disseminated, concordant,depositsof native copper,chalcopyrite, chalcocite,bornite and pyrite in |  | | Journal (article/letter/editorial) | | granitic wall rocks of the BethlehemJA and Valley Copper porphyry-type depositsare reported. Values of Rb...Rose,1970; Carsonand Jambor, finders for porphyry copper depositsemplacedin altered andesitesand basalts...and Kulp, 1956; Heier and Adams, around porphyry copper deposits in grani1964). During magmatic differentiation...Iocal•on Fro. 3. Generali,zed geologyof Valley Copper (after Allen and Richardson,1970; and McMillan...epidote,carbonate,and zealire are domi- porphyry copper depositsare associatedwith the nant (Guilbert and |  | | Journal (article/letter/editorial) | | and hasa lower as a guide to ore at E1 Teniente (Braden), Chile [abs.]: K/Rb ratio relative to the original...metasomatismat porphyry copper depositsin K. S., and Billings, G. K., 1970,Rubidium: abundance Chile and produceenlargedtargetsfor...TEXTURAL FEATURES IN THE DETOUR Introduction copper mineralization emplaced in some Chilean andesitic...Program with Abstracts, p. 26. OF SUPERGENE COPPER-ZINC-SILFER MINER.4L[Z.4TION DEPOSIT, QUEBEC...(Fig. 1) within a seriesof volcanic The Detour copper-zinc-silver sulfidedepositis rockswhich form part |  | | Journal (article/letter/editorial) | | century. The “ore giants” are dominated by gold and copper (278 and 268 entries), followed by Mo (166), Ag...loose pieces of metals like gold, meteoric iron and copper at the surface, goes back mere 9000 years in human...soon progressed to shallow depth, resulting in a mine. The numbers of mines and intensity of ACCEPTED...colonialism, modern economic booms (Belich, 2009). Active mine numbers and sizes skyrocketed during two World Wars...rapidly growing number of mineral discoveries and mine establishment was partly driven by the discovery |  | | Book | | https://archive.org/details/copperminingmana000Onavi COPPER MINING MANAGEMENT THOMAS R. NAVIN University...Strategy at the College but also has taught Mine of Business Management at the College of Mines...textbook of cases, many of them drawn from the copper industry. A distinguished scholar in the field...Thomas R. Copper mining and management. Includes bibliographical references and index 1. Copper industry...industry and trade — Management. 2. Copper industry and trade — United States — History. I. Title, HD9539 |  | | Report (issue) | | ......... 30 Geometric mean and deviation of copper and zinc contents in rocks from the western and...quadrangle. ..... 31 Geometric mean and deviation of copper content in mafic and intermediate rocks from the...niobium-zirconiumthorium-fluorite, tin-tungsten, and copper-molybdenum, although the potential of these areas...by the author and by F. Elsass and A. H. El Bazli. Copper, lead, zinc, gold, silver, nickel, cobalt... G. I. Seiner (USGS Computer Section), and A. H. El Bazli (USGS technician) is gratefully acknowledged |  | | Book | | color and copper soil anomaly (U.S. Forest Service photograph). Geology of the Porphyry Copper Deposits...77-071575 ISBN 0-89520-048-1 Preface Porphyry copper deposits of the Western Hemisphere occur in clusters...genetic influence in the six dif- ferent porphyry copper western hemisphere. provinces Deposit features...Evidence cited in this volume suggests that porphyry copper development is not hecessarily restricted to subduction...model, although exceptions (e.g., Ajo) a porphyry copper. If the fault is the Benioff are known. zone |  | | Report (issue) | | Reconnaissance Programme Report No. 43 Disseminated copper-molybdenum mineralisation near Ballachulish, Highland...Geochemical and geophysical investigations around Garras Mine, near Truro. Cornwall 3 4 Molybdenite mineralisation...Investigation of copper mineralisation at Vidlin. Shetland 30 Porphyry style copper mineralisation at...associated with the Skiddaw Granite near Carrock Mine, Cumbria 8 Investigation of stratiform sulphide...Scottish Caledonides 9 Investigation of disseminated copper mineralisation near Kilmelford, Argyllshire, Scotland |  | | Book | | 5.11. Recommended Reading ·/CHAPTER 6. NICKEL (-COPPER) SULFIDE DEPOSITS 6.1. Introduction 6.2. Distribution...PORPHYRY DEPOSITS 8.1. Introduction 8.2. Porphyry Copper Deposits 8.3. Porphyry Molybdenum Deposits 8.4...538 538 CHAPTER 12. SEDIMENT-HOSTED STRATIFORM COPPER (SSC) DEPOSITS 12.1. Introduction 12.2. Distinguishing...disseminating the information, the mine geologists and mine managers who have made the mine visits a rewarding experience...(a) metallic mineral deposits (e.g., deposits of copper, lead, zinc, iron, gold, etc.), from which one |  | | Book | | percent of the world total for many substances (iron, copper, fertilizer chemicals, etc.), is becoming more...in the United States 4 Iron and Steel Aluminum Copper Zinc Lead Manganese Magnesium Chromium 95 98 102...important for so1ne metal ore deposits such as copper and molybdenum. The Bowen reaction series is important...is norite, which is commonly enriched in nickel, copper, and cobalt. 11 SEDIMENTARY ROCKS Syenites...used. Where high-grade ore occurs at some depth, a mine shaft may be sunk and drifts (tunnels) run from |
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