 | | Journal (article/letter/editorial) | | the Formation of Epithermal Gold Quartz Veins in the Chortis Block, Nicaragua K. SUNDBLAD, Departmentof...basaltsand pre-Mesozoiccontinentalcrust. Three groupsof gold-bearingquartzveinshavebeendistinguished in Nicaraguabasedon...Cenozoicvolcanicrocksand preciousmetal de- positsin Nicaragua,whichrepresents the southernmost segmentof North...Thepaperprovides additional geologic informationontheNicaraguan gold-bearing veinsandtheir host rocks. GeologicBackground...653.00 944 AuQUARTZ VEINS, CHORTIS BLOCK, NICARAGUA 945 60' North American Plate - 20' - THV |  | | Report (issue) | | U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY PRELIMINARY BIBLIOGRAPHY OF THE GEOLOGY AND MINERAL...MINERAL DEPOSITS OF NICARAGUA by Herbert A. Pierce Open-File Report 92-547 This report is preliminary...deposits, Doth metallic and non-metallic, in Nicaragua. The U.S. Geological Survey through the Center...geochemistry, geology, and geophysics in and near Nicaragua. Unpublished literature and theses were included^whenever...the countries that share a common border with Nicaragua. Studies of the stratigraphy from southern Mexico |  | | Journal (article/letter/editorial) | | Overview of the Geology and Mineral Industry of Nicaragua a Joseph T. Arengi & Glen V. Hodgson b a Consulting...Carretera Masaya, 1, cuadra arriba, Managua, Nicaragua Published online: 06 Jul 2010. To cite this article:...Overview of the Geology and Mineral Industry of Nicaragua, International Geology Review, 42:1, 45-63, DOI:...Overview of the Geology and Mineral Industry of Nicaragua JOSEPH T. ARENGI Consulting Geologist, P. 0. Box... Carretera Masaya, 1 cuadra arriba, Managua, Nicaragua Downloaded by [McMaster University] at 13:15 |  | | Journal (article/letter/editorial) | | Framework of the Pliocene El Dorado Low-Sulfidation Epithermal Gold District, El Salvador MATHIEU RICHER...British Columbia V6T 1Z4, Canada Abstract The Pliocene El Dorado low-sulfidation epithermal Au-Ag vein system...located within an 84-km2 district in north-central El Salvador, is hosted by volcanic rocks formed along...basement rocks, outcropping mainly in north and central El Dorado, represent different parts of a complex volcanic...widely in southern El Dorado at lower elevations relative to central and northern El Dorado. The felsic |  | | Journal (article/letter/editorial) | | and basaltandesite-daeite volcanism took place. Gold-silver quartz veins and Cu-, Pb-, Zn- (Ag)-sulfidic...intermediate hypabyssal intrusives. Laterite, and gold placers are the only exogenic deposits. The relative...St6rungen und Basalt-Andesit-Dazit Vulkanismus. Die Gold-Silber Quarzgiinge und die sulfidische Cu-Pb-Zn-(Ag-)...Cretaceous. They are represented in southern Nicaragua and in Costa Rica by graywacke, arkose, silicic...dominant Eocene sediments in Panama, Costa Rica and Nicaragua (Brito formation). The thick series (up to 4,000 |  | | Report (issue) | | GEOLOGICAL SURVEY CIRCULAR 925 1984 United States Department of the Interior WILLIAM P. CLARK, Secretary ............. __ ........................... . 13 El Salvador ....................................................... . 21 21 22 22 22 23 24 24 24 Nicaragua ---------------------------------------------...geologic divisions and principal mineral deposits in El Salvador ---------------------------------------...----------------Energy resource potential in El Salvador ------------------------------------------- |  | Simon, Grigore, Kesler, Stephen E., Russell, Norman, Hall, Chris M., Bell, David, Pinero, Enrique (1999) Epithermal gold mineralization in an old volcanic arc; the Jacinto Deposit, Camagueey District, Cuba. Economic Geology, 94 (4) 487-506 doi:10.2113/gsecongeo.94.4.487 | Journal (article/letter/editorial) | | District,Cuba GRIGORESIMON,* STEPHENE. KESLER? Department of Geological Sciences, University of Michigan...CiudaddeLa Habana,CP11300,Cuba CHRIS M. HALL, Department of Geological Sciences, University ofMichigan...VirginIslands,pre-Robles unitsof 20 millionounces (Moz)of gold,ofwhichabout5 Mozhave easternPuerto Rico, the Guamira...Augrades aremainly between 0.5and2 g/t,witha fewashigh El Lim6n• / • 30ø-35ø '•eatriz • as8 g/t Au. 40o_45...Silverhasa distribution almostexactly likethat of gold. AgeofJacinto mineralization TheageoftheJacinto |  | | Report (volume) | | International Cooperation Administration, U. S. Department of State UNITED STATES GOVERNMENT PRINTING OFFICE...OFFICE, WASHINGTON a 1957 UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. SEATON, Secretary GEOLOGICAL...Honduras-------------~----------------------------------- El Quetzal mine_______________________________________..._________ Siria mine ________________________ ------------- __ ----Los Hornitos mine ______ ;_______...mine____________________________________ La Uni6n mine ________________ -----------------------(}uatem |  | | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY PRELIMINARY BIBLIOGRAPHY OF THE GEOLOGY AND...northeastern Nicaragua: United Nations Special Fund, Food and Agricultural Organization Nicaragua Agriculture...of western Nicaragua, in Tax improvement and natural resources inventory project, Nicaragua: Managua,... Nicaragua, v. 4, p. 221. 1972, Geologfa de la regi6n noroeste de Honduras - Programa de las Naciones...Chinandega, Nicaragua and Honduras: Catastro e inventario de recursos naturales, Nicaragua ND 16-14 Map |  | | Report (issue) | | CO-24 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY i PROJECT REPORT Colombia Investigations...the Agency for International Development U. S. Department of State 1973 GEOLOGY AND MINERAL DEPOSITS...IIB by R. B. Hall........................ 180 Gold and silver........................................................... 181 Relation of silver to gold.......................... 184 Lode mines............. 185 Frontino Gold Mines Ltd........................ 186 El Limon mine .................... |  | | Report (issue) | | the Agency for International Development U. S. Department of State and the Government of Colombia 1970...deposits near El Platanal.................. 40 KaoUnite deposits near El Secreto (El Congo)..................... 63 El Rincon copper deposit................................ 64 Gold....................too small to be exploited commercially. Primary gold deposits have not been identified and the placer...the Agency for International Development, U. S. Department of State. The Inventario Minero Nacional was |  | | Report (issue) | | SURVEY 1981 CIRCULAR 858-A United States Department of the Interior JAMES G. WATT, Secretary Geological...ican Republic -----------------------------------El Salvador ---------------------------------------...------------------------------------------- 58 Nicaragua -----------------------------------------------..."Metallo" derives from the Greek "metalleion"-a mine, after "metallan"-to search for; hence, metallogenic...assigned that will facilitate their recognition. Thus, gold and silver are yellow; copper and associated metals |  | Kesler, S. E., Hall, C. M., Russell, N., Pinero, E., Sanchez, R. C., Perez, M. R., Moreira, J. (2004) Age of the Camaguey Gold-Silver District, Cuba: Tectonic Evolution and Preservation of Epithermal Mineralization in Volcanic Arcs. Economic Geology, 99 (5) 869-886 doi:10.2113/gsecongeo.99.5.869 | Journal (article/letter/editorial) | | Geology Vol. 99, pp. 869–886 Age of the Camagüey Gold-Silver District, Cuba: Tectonic Evolution and Preservation...Volcanic Arcs** STEPHEN E. KESLER,† CHRIS M. HALL, Department of Geological Sciences, University of Michigan...Papua-New Guinea, Emperor in Fiji, Hishikari in Japan, El Indio in Chile, and most of those in the western...tectonic history 870 871 AGE OF THE CAMAGÜEY GOLD-SILVER DISTRICT, CUBA 90°W 8 0°W 7 Ba a) 0°W...host the Pueblo Viejo high-sulfidation epithermal gold-silver deposit in the Los Ranchos Formation and |  | Hall, R.B., Feininger, Tomas, Barrero, L., Dario, Rico H., Alvarez, A., , (1970) Mineral resources of parts of the Departments of Antioquia and Caldas, Zone II, Colombia. Open-File Report Vol. 1970 (70-148) US Geological Survey doi:10.3133/ofr70148 | Report (issue) | | RESOURCES................ .................. 17 Gold and silver................................. 17...silver to gold................. 22 Lode mines................................. , 23 Frontino Gold Mines............. 27 La Bramadora mine..................... 34 Berlin mine*.......................... 36... METALLIC" RESOURCES (CON'T.5 Gold and silver (con't.) Lode mines (cont.) El Limon mine.............. 40 Sma11....... 45 Pato Consolidated Gold Dredging Ltd.... 46 La Viborita mine........... 53 Sup^a placer |  | | Report (issue) | | and subdivisions) 1981 858-B United States Department of the Interior JAMES G. WATT, Secretary Geological...Dominican Republic----------------- DRDR________ _ 25 El Salvador --------·------------------ ESES ________...Zacatecas------------------------ MXZC _________ 42 Nicaragua---------------------------- NUNU ________ 43 ...(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 |  | | Journal (issue) | | Considers Options for Sierra Gorda........4 Argonaut Gold Approves Magino Project Construction..............Manitoba.........6 Australia/Oceania: Argyle Diamond Mine Operations Wind Down................... 12 Latin...Polyus Reports Maiden Reserve Estimate for Sukhoi Log Gold Project....... 16 Africa: Recurring Theme of Optimism...cover, managers discuss the pit walls at the El Soldado mine in Chile. (Photo: Anglo American) DEPARTMENTS...to Stone Canyon Freeport’s quarterly copper and gold sales were higher than expected, but not as high |  | | Book | | Kristalle Entstehung der Mineralien Gediegene Elemente Gold Platin, Eisen, Silber, Kupfer Quecksilber, Schwefel...ralogie, die Wissenschaft Heute beschrankt sich die Mine- von den Mineralien, nicht mehr nur darauf, die...Zeit spa- ter tauchen die ersten Metalle auf: Gold, Silber und Kupfer. Als man entdeckt, da®B sich...Oxidationszonen von Erzlagerstdtten. Sie enthielten vielfach Gold und wertvolle Sulfiderze. 3 Réstofen zur Destillation...hierfiir ist die Misch- kristallreihe zwischen den Mine- ralien Enstatit (MgSiO3) und Hypersten (Mg,Fe)SiO3 |  | | Journal (issue) | | Renewable Energy A key enabler for African mines Mine Closure Identifying key challenges POWER UP anywhere....................................20 8 MINE CLOSURE 3 mine closure challenges… and how to overcome them...them.................................. 21 Mine closure plan – a living, iterative effort...............associated with mine closure........................................25 Responsible mine closure through................................................29 Mine closure and rehabilitation – getting it right.. |  | | Journal (issue) | | ...............................6 Argonaut Gold, Alio Gold Agree to Merge......................................... 22 B2Gold Reports Record Quarter for Gold Production........................................Northshore Mining, Tilden Mine..............8 Latin America: Barrick Acquires Interest in El Quevar.............expected to progressively increase through May and June. El Cerrejón in Colombia has been placed on temporary...Complex, the Goldex mine and the Canadian Malartic mine (50% AEM, 50% Yamana Gold), in an orderly fashion |  | Ward, Dwight Edward, Goldsmith, Richard, Cruz, Bruna B., Restrepo, Jaime, Hernan, A. (1970) Mineral resources of the southern half of Zone III Santander, Norte de Santander and Boyaca, Colombia. Open-File Report Vol. 1970 (70-359) US Geological Survey doi:10.3133/ofr70359 | Report (issue) | | UNITED STATES DEPARTMENT OP THE INTERIOR GEOLOGICAL SURVEY PROJECT REPORT Colombia Investigations (IR)...the Agency for International Development U. S. Department of State and the Government of Colombia SEPTEMBER...RESOURCES..................................... 22 Gold and silver........................................(continued) Gold and silver (continued) California and Vetas mining district (continued) Mine investigations........ 51 Tembladal Mine........................................ 52 Cerro El Cacho............... |  | | Journal (issue) | | Rear-Dump Euclids are standard equipment on hundreds of mine, quarry, and construction jobs. For moving rock...service your wire rope is capable of deliverin Many mine operators go on for years getting less than the...information on request. 1321 South Main Street MINE DEVELOPMENT & DIRECTORY ® Dial 6-8555 NUMBER...operating in hard service, rock drills and other mine machinery, motor gear—heads, etc.; excellent air-—tool... with either medium or fine to bowl. Y-9 Mine & Smelter Supply Co. Denver 17, Colo. Mines Eng |  | | Journal (issue) | | RANCH 28 Diane Thomas BILL McHANEY'S LOST INDIAN GOLD 32 Harold O. Weight GENOA,NEVADA THE COVER:...King's Highway traces the original mission road, or El Camino Real, the length of Baja California, The Cave...Vegas highway. These include, in addition to the old gold and silver mines, the now very important "non-mettalics"...region. Paperback, 67 pages, $2.50. WHERE TO FIND GOLD IN THE MOTHER LODE By James Klein undone * JS«#"... author of Where to Find Gold in Southern California and Where to Find Gold in the Desert, has now added |  | | Journal (volume) | | DEPARTMENT OF FINING Library Numbft? Cupt'oird; Shelf: -^^ [ \\'^*5 V\ \ ';)att unless speciat...Beringer Associated Gold Mines of Western Australia ....Keport... Associated Gold Mines G. M. Roberts...Tincroft, Ore-Dressing at Carter, T. Lane Mining in Nicaragua Caucasus Copper Report Central Chile Copper Report...466 94 458 147 212 187 (e.l.) {e.l.) C. De Kalb (el.) 8. P. Emmons (p.t.) C. De Kalb (c.f.) Report ...374 293 210 77 24 Report Prospectus and Motor Gold Mining Camp PA<>E *iS Milling of Lead-I^ilver |  | | Report (issue) | | statement on economic geology 240 240 241 242 Gold 242 Silver 242 Platinum 242 Nickel 243 Copper...looking north, from a point east of Santiago; B, El Morro de Monte Cristi as seen from the south side;...Cordillera Septentrional 26 between Altamira and El Aguacate, as seen look- ing northward 28 A, Monte...and the shore IV. A, Vega Real, Sabana Liana near El Higo Gordo, province of La Vega, with the foothills...from Loma Coco between Hatillo and El Madrigal; C, Terrace flat at El Madrigal, on Rio Jaina VI. A, Loma |  | | Journal (issue) | | of Canada’s Top 40 miners. CMJ 17 29 Equinox Gold joins the Top 40. • • FEATURES 14 Waubetek and...MINING JOURNAL 34 Pure Gold poised for production in Red Lake; Plus, five other gold projects we’re watching...their operations. NEW MINING TECHNOLOGY 43 A new gold assay method could offer a faster, simpler alternative...DEPARTMENTS 4 EDITORIAL | Right now, it’s all about gold. 6 LAW | Alison Babbitt and Michael Cockburn of...AUGUST 2020 ABOUT THE COVER Newmont’s Tanami gold mine, in Australia’s Northern Territory. CREDIT: NEWMONT |
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