 | | Journal (article/letter/editorial) | | EPITHERMAL GOLD VEINS, BOROVITSA CALDERA, SOUTHERN BULGARIA BRAD SINGER† Department of Geology and Geophysics...Sciences, Acad. G. Bonchev Str. bl. 24 Sofia 1113, Bulgaria Abstract Plutonic, volcanic, and hydrothermal...spatially, leaving behind complex records of multiple ore-forming processes that can be appreciated in detail...hydrothermal systems is ascertained. The Spahievo ore district, Bulgaria, is adjacent to the Oligocene Borovitsa...Deposition of Au ore ca. 300 k.y. prior to caldera collapse distinguishes this ore district from many |  | Marchev, Peter, Kaiser-Rohrmeier, Majka, Heinrich, Christoph, Ovtcharova, Maria, von Quadt, Albrecht, Raicheva, Raya (2005) 2: Hydrothermal ore deposits related to post-orogenic extensional magmatism and core complex formation: The Rhodope Massif of Bulgaria and Greece. Ore Geology Reviews, 27 (1) 53-89 doi:10.1016/j.oregeorev.2005.07.027 | Journal (article/letter/editorial) | | Ore Geology Reviews 27 (2005) 53 – 89 www.elsevier.com/locate/oregeorev 2: Hydrothermal ore deposits...core complex formation: The Rhodope Massif of Bulgaria and Greece Peter Marchev a,*, Majka Kaiser-Rohrmeier...of Sciences, Acad. G. Bonchev St., 1113 Sofia, Bulgaria Isotope Geology and Mineral Resources, Department...2005 Abstract The Rhodope Massif in southern Bulgaria and northern Greece hosts a range of Pb–Zn–Ag...in the Central Rhodopean Dome (e.g., the Madan ore field) are spatially associated with low-angle detachment |  | | Journal (issue) | | correct shadows. Proper background and depth of field are also important for tricking the brain into seeing...magnifies the image, the narrower the depth of field becomes. Orienting the specimen correctly to get...within a narrow depth of field is difficult and sometimes impossible. Depth-of-field problems can sometimes...Austrian micromounter. Dioptase frome Harquahala Mine, La Paz Co., AZ. capture. Sometimes, the colors...on quartz, collected from Chala Gold Mine, Spahievo Orefield, Bulgaria. Field of view is less than 1.5 |  | | Journal (article/letter/editorial) | | chalcopyrite, galena, sphalerite, tennantite bornite. Other Ag- and Te-bearing minerals (electrum, hessite...in cervelleite relates to the association with bornite. Broad variations in composition and physical properties...as a new mineral species from the Bambolla Au–Te Mine, Mexico (Stanley et al., 1986). Prior to acceptance...Epithermal deposits Shadiitsa, Central Rhodopes, Bulgaria (Ag,Cu)4TeS Mayflower, Montana (cervelleite) Eniovche...2) as inclusions in sphalerite with silver-rich bornite, chalcopyrite and hessite. Associated minerals: |  | Adjo, Fatchessin Bruno, Bolarinwa, Anthony Temidayo, Adissin Glodji, Luc, Dongmo, Franck Wilfried Nguimatsia, Olajide-Kayode, Jerry Olugbenga (2019) A review of the current state of knowledge on gold mineralisation in Benin Republic, West Africa. Applied Earth Science, 128 (1) 2-14 doi:10.1080/25726838.2018.1556503 | Journal (article/letter/editorial) | | and the Pan-African Dahomeyides Belt (modified, Chala et al. 2015). 4 F. B. ADJO ET AL. Affaton et...1989; Affaton et al. 1991; Adissin Glodji 2012; Chala et al. 2015). The Atacora quartzite is an orthogneiss...system (Affaton et al. 1991; Tairou et al. 2007; Chala et al. 2015). The Atacora Unit is composed of an...east to west (Affaton 1990; Affaton et al. 1991; Chala et al. 2015). The Kandi Shear Zone activity started...2 g t−1. Gold is associated with chalcopyrite, bornite, sphalerite, galena and silver (Kirov et al. 1981; |  | | Journal (issue) | | sussex l mineral & lapidary society SMLS Field Trip To Ireland Journal 210 - November/December 2007...Woodbridge OTHER RESPONSIBILITIES Mark Oddy Field trip Co-ordinator: Journal Editor & Show Organiser...SMLS Journal 21 o Nov/Dec 2007 Mineralogical Field Trip to Slovakia Thanks to the efforts of Brian...forward in the organisation of the S.M.L.S. foreign field trip for 2008. A brief outline of the trip is given...Slovakia (based on the experience of the trip to Bulgaria last year, these costs should be around £200) |  | | Report (volume) | | The Timing and Location of Major Ore Deposits in an Evolving Orogen Geological Society Special Publications...A. (eds) 2002. The Timing and Location of Major Ore Deposits in an Evolving Orogen. Geological Society...J. 2002. Permo-Mesozoic multiple fluid flow and ore deposits in Sardinia: a comparison with Post-Variscan...A. (eds) 2002. The Timing and Location of Major Ore Deposits in an Evolving Orogen. Geological Society...PUBLICATION NO. 204 The Timing and Location of Major Ore Deposits in an Evolving Orogen EDITED BY D. J. BLUNDELL |  | | Journal (article/letter/editorial) | | most of the silver depositsin the Cobalt area. The ore occursas nearly vertical veins in Huronfan sedimentaryrocks...below a sill-like body of Nipissing diabase. The ore veins are composedof carbonates,arsenides,native...arsenidesand grade of silver ore. The predominantarsenidesin the upperparts of the ore veins are thoseof nickel...cobalt,and in the lower parts,iron. High-grade silver ore is generallyassociated with mixturesof nickel and...of metallurgical melts. The sulfides occur in the ore veins and the wall rock as veinlets and disseminated |  | Chen, H., Clark, A. H., Kyser, T. K., Ullrich, T. D., Baxter, R., Chen, Y., Moody, T. C. (2010) Evolution of the Giant Marcona-Mina Justa Iron Oxide-Copper-Gold District, South-Central Peru. Economic Geology, 105 (1) 155-185 doi:10.2113/gsecongeo.105.1.155 | Journal (article/letter/editorial) | | 104 Ma. Finally, at 95 to 99 Ma, chalcopyrite-bornite-digenite-chalcocite mineralization, with abundant...south-central Peru, which juxtaposes major IOCG-style ore deposits with widely variable proportions of iron...of high-grade magnetite ore in the central Andes, is centered in Nazca Province, Ica Department, at latitude...Perú SA., Resource Estimate of the Marcona iron mine, unpub. report, 2003, in Chinese). The Mina Justa...Cu-(Ag) prospect, 3 to 4 km northeast of the Marcona mine (Fig. 2) at latitude 15°10' S, longitude 75°5" W |  | | Journal (article/letter/editorial) | | with gabbrodiorite to diorite magmas from which the ore fluid may have been channelled by major ductile to...composite IOCG deposits originated by ingress of the ore fluid to relatively permeable volcano-sedimentary...witnessed by the ore-related diorite dykes, but in either case the origin of the ore fluid at greater,...may have fortuitously contaminated the magmatic ore fluid locally. The proposed linkage of central Andean...hematite as major accompaniments to chalcopyrite±bornite (e.g. Ray and Lefebure 2000). Besides the copper |  | | Journal (issue) | | SEPTEMBER–OCTOBER 2022 Articles The Akchatau mine, Shet District, Karaganda, Kazakhstan.............E. Wilson & T. P. Moore The Graf Jost-Christian mine, Wolfsberg, Harz Mountains, Sachsen-Anhalt, Germany...the amethyst they could collect at the old Pearl mine in Thunder Bay. They weren’t as successful with...localities such as the Majuba Hill mine, the Tsumeb mine and the Black Pine mine in Montana. More recently he...Chris, sometimes with his family, continued taking field trips in California, Nevada, Utah, Arizona and Mexico |  | | Report (issue) | | eee Meee ee ee Coe ee eet cue cceweceaee| BECOME ORE cetereuieteteiee cccetisinaietes siren aie elec cin...slecsvedere cielo n(e breiers wl ape eotve,tians ore oveine ecersielelie wisiere AEA RE WOON DEAN OU...sieielnaiaialeielate 4ie/s/ate auto Goronatton, Mime cis a's cnis ore oo o's wea ale ss c1d e100 ehalatetetetalaiete a\s...eT, Christmas’ sce eciavs o/evnjslaie) pete 6 ote ore eer veiaeleisioi eee ae eee IO) GLOBE=M1 am acesw...eteeietee neem TELOME sein: einisrsyere tora ovaiete ore euslieva)elelevensteretanerersacstereler aerate Tarte |  | | Book | | Kutais, Sukhum, the northern part of the Black Sea Province towards Tuapse, Ardahan and Olti districts, :...22,661,532 tons; manganese ore, 1,676,824 tons wool, (the bulk of this ore was exported from the port...exclusively devoted to the of export manganese ore. The industry of Georgia is very small at present...World Importance The Ore Deposits 2. Extraction 3. Dressing and Washing of the Ore Transport Its 4...only the outcrops are known. The total quantity of ore contained in them is estimated at about 13,000,000 |  | | Journal (article/letter/editorial) | | shallow chambers as granitoids that passively degassed ore fluids. The compositional diversity of the volcanic...LONGO ET AL. Introduction of high-sulfidation ore deposits with hydrous, calc-alkaline magmatism characterized...alteration zones of vuggy residual quartz containing ore mineral assemblages with relatively high sulfur contents...magmatic record is well preserved in a volcanic field associated with numerous subvolcanic intrusions...limestone and quartzite dominant Yanacocha Volcanic Field (YVF) Jurassic andesitic volcanic rocks and Devonian |  | | Report (issue) | | (1979). Probe analyses (1) from Broken Hill gold mine, Coromandel , New Zealand. ACANTHITE. Nikolaeva...(1979). Probe analyses (4) from Broken Hill gold mine, Coromandel, New Zealand. AGUILARITE. Sugaki et...6528 (1983). Probe analysis, x-ray data from Sanru mine, Hokkaido, Japan. AGUILARITE. Sugaki et al., J....65-77 (1982). Microprobe analyses (5) from Sanru mine, Hokkaido. AGUILARITE. Vassalo Morales and Borodaev...Aufschluss 33, 367-373 (1982). Occurrence at Clara mine Black Forest. X-ray data, a 10.46, c 3.02A. AKERMANITE |  | | Report (issue) | | ON GENERAL GEOLOGY, BY SAMUEL FRANKLIN EMMONS. Field work.......-.......-...-......---.----..-.-.-.......... 24 Connection of the igneous rocks with ore deposits..............-....--...-.---------...................................................... Field work and acknowledgments............................................................ Discovery of ore....................................................'............................. First shipment of ore................................................. |  | | Book | | Villagran. \ii Pino, L. Nune1 & \ii . Grosjean 13. Field excursion from central Chile to the Atacama De<...Offsho re geology Metallic ore deposits Industrial minerals and rocks Metallic ore deposits ~ Teresa M o...activity (Chapter 5) and the world-class metallic ore deposits which have pro\·en to be so critical to...our understanding of the basement based on recent field studies. the application of radiometric dating techniques...contact between then, has not been observed in the field. SHRIMP U-Pb ages in zircons in both the orthogneiss |  | | Book | | hydrocarbon, uranium and other metallic and non-metallic ore resources contained in its Cretaceous sedimentary... as in Venezuela, structural and stratigraphic field relationships in the Northern and Central Ranges...northern South America (Le., true continental slope province), little can be ascertained because of the obscuring...northern South American Cretaceous passive margin province. More westerly parts of Colombia, such as the...Magdalena Valley, Colombia. ClF, Unidad de Geologia, Field Trip Guide, 1-39, Bogota. Kugler, H.G. (1953): Jurassic |  | | Journal (volume) | | Ashanti Rivers and Concessions 305 {c.l.) .... Ashio Mine, Japan 154 Associated Gold Mines of Western Australia...118 Auckland Letter Abosso Gold Accounts, Gold Mine Africa, In South Central Air-Blasts on Rand Aladdin...Report Hill Proprietary Hill Proprietary's Iron Mine Hill, Hill, . . ... {c.l.) {p.t.) British...Burma Mines Burma Ruby Mines Burnham M. H Modem Mine 264 *230 Report. *230 Report. Valuation 383, 441...Report .... *385 Cemented Ore Ernest Williams .... 437 Centenillo Lead Mine 401 Central Chile Copper Report |  | | Journal (volume) | | Copper Report; :.;.: Arizona Copper f Ashio Copper Mine, Japan MT'b'urant T. Ouiant ...... .H. ... Assays...Mines of West Australian Iron Resources Balcobo Mine Assays Economics Ball, H. S BalUMiU Practice....Report Block 10 Block 14 Hill, Discovery at British Mine. Hill Hill Hill, Output at Hill South Silver ...Burma Mines Burma Ruby Mine Bunihain, M. Butler, R. H. _ •. .w' ii.Vs a Mine ..'38, M25 . H... .Finance...•. -•;••, . > "J;'-' Blackwater Mine RlEort Blackwater Mine...., -•;;; M^uiewson (r.M E. P Blast-Enrnace |  | | Journal (volume) | | Abbontiakoon Mines, Ltd., company report Abosso mine. West Africa Acacia Mining Co., Colorado 270, ...prevention . . . Queen Co.'s mine, Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper...Accidents, coal-mine in United States Compensation for Workingmen's compensation Acid mine water Acidity...Pressure In smelting Co., Colorado Mine, Victor, Colorado, electric mine-signal system.. 49 Olancho county...New Brunswick Aleutian group. Alaska Alex Scott mine, Butte, Montana Algeria, mining In Algomah Mining |  | | Book (volume) | | Panitsa UF Panitsa, Nagradi BT Journalism—Awards—Bulgaria Nagroda imienia Wlodzimierza Pietrzaka UF PAX...(Xiangkhoang Province and Viangchan Prefecture, Laos) USE Ngum River (Xiangkhoang Province and Viangchan...(Name) Clinton (Name) Elgin (Name) Europa (Name) Field names Hamilton (Name) Hanover (Name) Holland (Name)...Newfoundland Indians of North America—Quebec (Province) Naskapi language (May Subd Geog) [PM2004.N3]...Algonquian languages N e wfoundland—Languages Quebec (Province)—Languages Naskapi women (May Subd Geog) UF |  | | Book (edition) | | Interior—Revisited: Seismic Layering, the Magnetic Field, and Gravity ® 330 Crags, Cracks, and Crumples:...Interior—Revisited: Seismic Layering, the Magnetic Field, and Gravity * 330 D.1 Introduction * 330 D.2...Meaning of Acceleration D.8 * 342 Earth's Magnetic Field, Revisited « 344 Contents xXV CHAPTER 11 ...Their Discovery 15.3. Ores, Ore Minerals, and Ore Deposits 15.4 Ore-Mineral Exploration and Production...« 511 « 513 CONSIDER THIS The Amazing Chilean Mine Rescue of 2010 « 514 OOOSESOSES Contents XViii |  | | Report (issue) | | Nazca plate metalliferous sediments... Cyrus W. Field, Dennis G. Wethere/I, and E. Julius Dasch 315 ...James Isotopic composition of Pb in Central Andean ore deposits. George R. Tilton, Robert J. Poliak, Alan...Robertson Epilogue: Geostill reconsidered. Cyrus W. Field and E. Julius Dasch 729 741 755 761 769 791...fundamental and numerous, are primarily in the field of geophysics and the geological interpretation...subduction on the volcanism, mountain building, and ore deposits of the Andes (Andean Convergence Zone). |  | | Book (volume) | | of a geographic feature, the name of a state or province, or the name of a city, then the name of the country... 1999, have the notation 1, Records created field. AC after Records created prior AC in the ...1, to b subfield of the 1999, have the no- field. clusion in the Library of Congress Cataloging-In-Publication...policies this initiated list libraries as in the field. has continued to evolve. New policies and old... i.e. Theater language materials. Track and field combinations trailer tions. are further subdivided |
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