 | | Journal (article/letter/editorial) | | metamorphism. Most of the 250 small occurrences of copper minerals recorded in the area occur in two of the...chalcopyrite, chalcocite, bornite, and native copper, and minor pyrite. Bornite, chalcopyrite, and pyrite...diabase sills, chalcocite and native copper with the flows. No copper deposits of economic importance have...have been found. The association of copper with only the upper flows and sills in such a thick sequence...indicates that only the final outpourings of magma were copper-rich. Low-grade niobium-thorium-rare-earth deposits |  | | Report (issue) | | Mineral Resource Report 80 GEOLOGY AND MINERALOGY OF COPPER-URANIUM OCCURRENCES IN THE PICTURE ROCKS AND SONESTOWN... PREFACE This report documents a large number of copper and uranium occur rences within one area of the...Bendix Field Engineering Corporation's Pittsburgh District provided most of the uranium and semiquantitative...assistance in identifying plant specimens from the Old Copper open pit geobotanical anomaly. Reviews of this...of the Picture Rocks-Sonestown area History of copper and uranium prospecting in the Picture RocksSonestown |  | de Paula Garcia, Pedro Maciel, Teixeira, João Batista Guimarães, Misi, Aroldo, da Silva Sá, José Haroldo, da Silva, Maria da Glória (2018) Tectonic and metallogenic evolution of the Curaçá Valley Copper Province, Bahia, Brazil: A review based on new SHRIMP zircon U-Pb dating and sulfur isotope geochemistry. Ore Geology Reviews, 93. 361-381 doi:10.1016/j.oregeorev.2018.01.007 | Journal (article/letter/editorial) | | Tectonic and metallogenic evolution of the Curaç á Valley Copper Province, Bahia, Brazil: A review based on new...Tectonic and metallogenic evolution of the Curaç á Valley Copper Province, Bahia, Brazil: A review based on new...Tectonic and metallogenic evolution of the Curaçá Valley Copper Province, Bahia, Brazil: A review based on new... containing copper sulfide mineralization, are present in the Curaçá River Valley Copper Province, northeastern...greenschist metamorphic facies. The main orebodies with copper sulfide minerals are associated with pyroxenite |  | | Report (volume) | | GEOLOGY AND MINERAL .RESOURCES OF THE NIZINA DISTRICT, ALASKA BY FRED H. MOFFIT AND STEPHEN R. CAPPS...____________________. _________________ Copper ______________ :____________!__.._.____ Occurrence of the ores__________________...statement________________________ Copper sulphide deposits in greenstone and limestone___ Native copper associated with...copper______________________ ___ Origin of the copper deposits__________.___ - ______ Description of...109 ILLUSTRATIONS. Page. PLATE I. Map of the Copper and Chitiua valleys, showing location of area represented |  | | Report (issue) | | name(s): Unnamed (north of Scotty Peak) Site type: Occurrence ARDF no.: MC001 Latitude: 61.8059 Quadrangle:...9725 Location description and accuracy: This occurrence is about 2 miles north of Scotty Peak. It is...the center of section 4, T. 1 S., R. 8 E. of the Copper River Meridian. This is locality 183 of MacKevett...minerals: Gangue minerals: Geologic description: This occurrence consist of a vein that is localized in a fault...5 part per million (ppm) silver and 15,000 ppm copper (MacKevett, 1976). Alteration: Age of mineralization: |  | | Report (issue) | | Mesozoic Basins of the Eastern United States II. Occurrence Descriptions and Summary Tables by Gilpin R....MESOZOIC BASINS OF THE EASTERN UNITED STATES II. OCCURRENCE DESCRIPTIONS AND SUMMARY TABLES TABLE OF CONTENTS...Quadrangle, Latitude, Longitude .......... 7 Occurrence Type, Production ................... 7 Deposit...References Cited .......................... .13 VI. Occurrence Bibliography ...................... .14 VII...type* ......... Occurrences listed by type of occurrence and size . . Occurrences listed by metal association |  | | Report (Issue volume) | | of arsenic, antimony, bismuth, chromium, cobalt, copper, gold, lead, molybdenum, nickel, silver, tungsten...vanadium, cadmium, and barium. Occurrences of iron, copper, lead, zinc, chromium and uranium comprise the...mineral deposits, and because many contain accessory copper and other metals. Other types of iron deposits...present, the degree of exploitation (mineral occurrence, prospect, low production and high production)...Davis M. Lapham of the In any study of mineral occurrence data, the geologic characteristics and affinities |  | | Report (issue) | | Gradering Fortrolig Fortroligpga Muting Oversendtfra Valley Metals Exploration AS Ekstem rapport nr Fortmlig... Fagområde febr 2001 Bergdistrikt Fyke År Valley Metals Exploration AS ; 1 50 000 kartblad 14131...elk (PErvIOLYSLY opper \line.11 .gland. \oNa Valley Metals Exploration AS SOLA PRODUKSJONSJTJIKLING...Rysstad 2.5.10 Kaldvassdalen 2.5.11 Mosnap Mine valley 9 10 Pletals eiploratton ss 13 13 13 13 14...0 CONCLUSIONS 33 4.0 LIST OF REFERENCES 35 Valley Netals Exploratloo AS page 2 of 40 Mandal |  | | Report (issue) | | deposits; porphyries. Example, copper skarns associated with copper Metal concentrations; Regional...hosted 4.1 Red-bed green-bed copper 4.2 Volcanic native copper 4.3 Dolomitic copper cobalt 4.4 Sandstone uranium...Os-Ir alloys, cooperite, sulfides, arsenides, bornite, chalcopyrite. Texture/Structure Assemblage 1:...El Salvador, Chile Silver Bell, Arizona Highland Valley, B.C. Canada References Gustafson and Hunt, 1975...1975 __Graybeal, 1982 __McMillan, 1976 Porphyry copper molybdenum 2.1 Leached zone Surface Water table |  | | Journal (article/letter/editorial) | | A "RED BEDS" TYPE COPPER OCCURRENCE, WYOMING CO., PENNSYLVANIA. ROBERT D. BUTLER. ABSTRACT. Two smallexposures...semi-bituminousor anthracite in rank. Epigenetic minerals are bornite,blue and white chalcocite,and chalcopyrite. Cracks...Cracks in the alteredplantremnantsare filledby bornite. Goodpreservation of cell structuresprobablyis due..."Red Beds" type becauseof their comx Weed, W. H.: Copper deposits of the Appalachian States. U.S. Bull....pileof copper-stained shalelies nearby. This occurrence differsfrom the otherin that bornite and chalcociteare |  | | Journal (article/letter/editorial) | | getthe it R TLhrough Scope The Microminerals of Valley Quarry JERI L. JONES 276 North Main Street Spring...yielded world-class mineral specimens. Although Valley quarry in Gettysburg is not one of these occurrences...produced results that warrant publication. Location Valley quarry is located about 2.2 miles southeast of...Inc., which sold it to Campbell Company in 1959. Valley Quarries of Chambersburg, Pennsylvania, bought...natrolite specimens. In the mid-1970s, an iron-copper skarn zone was encountered that produced outstanding |  | | Book (edition) | | common are malleable (e.g gold). ductile (e.g. copper). sectile (e.g. chalcocite). elastic Optical co11sta11ts...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31...Grossgreiner Mt., overlooking Zillertal Valley, Tirol, Austria, and at Passo di Vizze, Trentino-Alto Adige...western Sayan Mts., white at Burumskoye, Vitim River Valley, all Siberia, Russia. In many localities in New | | | Report (issue) | | Preliminary Model of Porphyry Copper Deposits Open-File Report 2008–1321 U.S. Department of the Interior...Geological Survey Preliminary Model of Porphyry Copper Deposits By Byron R. Berger, Robert A. Ayuso, Jeffrey...Seal, R.R., 2008, Preliminary model of porphyry copper deposits: U.S. Geological Survey Open-File Report......36 Figures 1. Cross section of a porphyry copper deposit showing idealized alteration zoning (after...compositions associated with selected porphyry copper deposits..........37 2. Major and minor axes of |  | | Report (volume) | | underground waters _________ ___ Composition of waters in copper and precious-metal mines of sulphide ores_ _____________________...___^________ Iron___ __________________.._____ Copper _____________________ Zinc-____________ ________...Copper____________________________________ Principal copper minerals_____________________ Pake. 83 83 86 86...of enrichment Continued. Copper Continued. Page. Solubilities of some copper compounds_'._____________..._____________ 155 Nature and relations of the copper minerals___________ 155 Solution of copper___________.__'_____________ |  | | Report (issue) | | D. WALCOTT, DIRECTOR Gli:OLOGY OF THE CENTRAL COPPER RIVER REGION, ALASKA BY WALTER C. MEN1DEN 1-1...Mountains Alaska Range 17 10 Interior valley 19 20 22 Copper River and its tributaries Relations of...Description of formations 27 Dadina schists Occurrence and character Diorite intrusives 27 27 28 29...Age of the diorite intrusives Tanana schists Occurrence and character Age and nomenclature 30 32 32...32 33 Valdez formation Chisna formation Occurrence and character Age and relations 33 34 35 Intrusives |  | | Report (issue) | | from the Central district is unique. In part because of the moderate number of copper-uranium occurrences...2 General stratigraphy and structure Delaware Valley stratigraphy Igneous Rocks 2 4 4 Uranium occurrences...of occurrence of the uranium 30 39 X-ray spectrographic analysis The coloration problem Bornite—chalcopyrite...pocket 3. Hendricks Island occurrence 4. 5. Mt. Pisgah occurrence Geologic map of the Round Knob...Knob area 6. View of Round Knob occurrence 7. Geologic map of the New Albany, Beaver Lake, and Central |  | 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) | | and B) 48 Podiform chromite (1.1) 7 Porphyry copper molybdenum-rich; gold-rich (2.1, 2.2) 9 Molybdenum...climax type; low fluorine type (2.3, 2.4) 12 Copper skarn (2.6) 14 Lead-zinc skarn (2.7) 14 Massive...rocks (3.2) 18 Redbed-greenbed copper (4.1) 20 Volcanic native copper (4.2) 22 Sandstone (sedimentary)...Porphyry copper, Mo-rich; Au-rich 8 4. Molybdenum porphyry-Climax type, low F 11 5. Copper skarn,...rocks - 17 8. Redbed-greenbed copper 19 9. Volcanic native copper 21 10. Sandstone (sedimentary) |  | | Report (chapter) | | Chapter 26 Copper deposits of Myanmar KHIN ZAW1*, YE MYINT SWE2, TIN AUNG MYINT3 & J. KNIGHT1 1 CODES...account of the copper deposits and occurrences in Myanmar. Myanmar has more than 70 copper occurrences,... Myanmar commenced copper production with the development of the Sabetaung copper deposit at Monywa in...in central Myanmar. Copper matte was produced as a by-product from the Bawdwin Mine, a volcanic-hosted...exploited. Copper is associated with epigenetic vein-type and epithermal gold ± silver deposits. Copper-bearing |  | | Journal (article/letter/editorial) | | pyrrhotite, digenite, tetrahedrite, chalcocite, bornite, and covellite. Pyrite occurs in two forms: (1)...pyrite. Microprobe analysis confirmed that gold and copper are relatively enriched in the late pyrite. Identified...limonite, gold, carbonates, and sulfates of iron and copper. Gold in ancient times came largely from Nubia...microfissures in quartz (Osman 1989). The Hamash district is located in the Southeastern Desert of Egypt...long. 34°00'-34°15 ' and lat. 24°30'-24°45'N. The district is built up of Precambrian metasediments, metavolcanics |  | | Journal (article/letter/editorial) | | Inc. Economic Geology, v. 105, pp. 3–41 Porphyry Copper Systems* RICHARD H. SILLITOE†27 West Hill Park...erosion. Low sulfidation-state chalcopyrite ± bornite assemblages are characteristic of potassic zones...arc settings. At the regional and district scales, the occurrence of many deposits in belts, within which...Mt Polley Recsk Highland Valley dist. Rosia Poieni Bingham Island Copper Almalyk Oyu Tolgoi Kounrad...GlobeMiami Ray Mineral Park Saindak Cananea Copper Canyon Chelopech Sepon SierritaEsperanza Red | | | Report (issue) | | (PRISM-II) Mineral Potential for Sediment-Hosted Copper Deposits in the Islamic Republic of Mauritania:...A., 2015, Mineral potential for sediment-hosted copper deposits in the Islamic Republic of Mauritania... ISSN 2331-1258 (online) ii Sediment-Hosted Copper Deposits 1 Summary The presence of Neoproterozoic...Central African Copperbelt and other sediment-hosted copper-bearing Proterozoic sequences worldwide, is first...in Mauritania as prospective for sediment-hosted copper deposits. Review of the National Mineral Occurrences |  | | Journal (article/letter/editorial) | | P. G. LEROY—SANTA RITA COPPER DEPOSIT Sampling of stages of alteration Copper content of altered granodiorite...hypogene copper mineralization with hydrothermal alteration.... Correlation of supergene copper mineralization..... Correlation of porosity and total iron with copper content of altered granodiorite. References cited...ILLUSTRATIONS Figure 1. Location map of Santa Rita porphyry copper deposit, New Mexico 2. Granodiorite porphyry cutting...6. Hornblende granodiorite porphyry dike. . 7. Copper-zinc zoning north of the Santa Rita pit 8. Chloritization |  | Bliss, James D., Brosge, W.P., Dillon, J.T., Dutro, J.T., Cathrall, J.B., Cady, J.W. (1988) Mineral resource assessment of the Wiseman 1 degree by 3 degrees quadrangle, Alaska. Open-File Report Vol. 1988 (88-533) US Geological Survey doi:10.3133/ofr88533 | Report (issue) | | hosted lead-zinc deposits and/or sedimentary-hosted copper. Where there are carbonate rocks, Southeast Missouri...porphyroaphanitic rocks intrude calcarous rocks, copper and other skarns may also develop (Cox and Singer...description. TRACTS Many tracts are permissible for the occurrence of more than one deposit type. Tracts are delineated... SEDX-V, SEDX-VI, M-l, M-2 Sedimentary hosted copper SEDC-I, SEDC-II Carbonate hosted lead (zinc)...CHB-I, CHB-II, CHB-III, CHB-IV, M-l, M-2 Skarns (copper; lead-zinc; tin) M-2 (also see text.) Simple |  | | Report (Issue volume) | | Lawrence Lawrence Lawrence Bessemer Enon Valley Enon Valley Wampum 87 88 89 90 91 92 93 94 95 Lawrence...of arsenic, antimony, bismuth, chromium, cobalt, copper, gold, lead, molybdenum, nickel, silver, tungsten...vanadium, cadmium, and barium. Occurrences of iron, copper, lead, zinc, chromium and uranium comprise the...mineral deposits, and because many contain accessory copper and other metals. Other types of iron deposits...present, the degree of exploitation (mineral occurrence, prospect, low production and high production) |  | Edfelt, Åsa, Armstrong, Robin N., Smith, Martin, Martinsson, Olof (2005) Alteration paragenesis and mineral chemistry of the Tjårrojåkka apatite–iron and Cu (-Au) occurrences, Kiruna area, northern Sweden. Mineralium Deposita, 40 (4) 409-434 doi:10.1007/s00126-005-0005-y | Journal (article/letter/editorial) | | area in northern Sweden, is an important mining district and hosts several deposits of Fe-oxide Cu-Au-type...possibly genetically, related apatite–iron and copper–gold deposits in the region is at Tjårrojåkka...ore of Kiruna-type and the Tjårrojåkka copper occurrence shows the same characteristics as most other...albite alteration and copper mineralisation. The Tjårrojåkka iron and copper deposits show comparable...UK alterations in the apatite–iron occurrence than in the copper deposit, where the minerals are enriched |
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