 | | Journal (article/letter/editorial) | | Epithermal Gold Quartz Veins in the Chortis Block, Nicaragua K. SUNDBLAD, Departmentof Geologyand Geochemistry...Cenozoicvolcanicrocksand preciousmetal de- positsin Nicaragua,whichrepresents the southernmost segmentof North...653.00 944 AuQUARTZ VEINS, CHORTIS BLOCK, NICARAGUA 945 60' North American Plate - 20' - THV ...c-Motagua fault oliteComplex directioneastof Nicaragua. zone) via the Caymantrenchto the straitbetween...plate and incorporatedin the Caribbeanplate and Nicaragua(McBirneyandWilliams,1965). More restarted an eastward |  | | 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) | | 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...dacites, and their tufts in the extreme south of Nicaragua, and augite-hypersthene andesite and the olivine...central Cordillera in Panama and Costa Rica. In Nicaragua and E1 Salvador ignimbrites cover much larger...central and western Panama and several others in Nicaragua and E1 Salvador have been analyzed in order to |  | | 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 |  | | 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 |  | 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...Augrades aremainly between 0.5and2 g/t,witha fewashigh El Lim6n• / • 30ø-35ø '•eatriz • as8 g/t Au. 40o_45... of electrumandpyrite,withminorchalcopyrite, sphalerite,contours 493 JACINTODEPOSIT,CUBA:EPITHERMALAu...Sample Location TE18AD1 E1 Limon TE18AD1 Stage Substage II E1 Limon 2, 3, 4 II 9, 10, 11 C]/K |  | | 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...Gold Mines Ltd........................ 186 El Limon mine .................................. 189 Small...Gold Dredging Ltd............ 194 La Viborita mine............................... 199 Anori placer............................................. 211 El Jordan.......................................... |  | 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) | | .......... 27 La Bramadora mine..................... 34 Berlin mine*.......................... 36...Gold and silver (con't.) Lode mines (cont.) El Limon mine.............. 40 Sma11 lode mines 43 .....Consolidated Gold Dredging Ltd.... 46 La Viborita mine........... 53 Sup^a placer district....... 58............................. 85 Nueva Esperanza mine at Aranzazu............ 85 Aguadas prospect 90...cement industry in Zone IT.....*... 108 Cementos El Cairo........................... 110 Cementos del |  | 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...California and Vetas mining district (continued) Mine investigations.............................. 47........ 51 Tembladal Mine........................................ 52 Cerro El Cacho...................................................... 52 Canada El Tuto........................................ 53 |  | | Book | | produced specimens from such places as the La Fé Mine in the state of Chiapas and Santa Rosalia in the...IG Oe feo pe x \ LAK hae! gin WS Durango,° El Soo ® 3 ot ? f altitto’(o) -Yy ite eee cot...surface in large caves. Some of these caves and mine stopes were so large that it was said that the cathedral...Apache Indians began to raid the region. The Spanish mine owners tried to continue operations, but with México...several times and held the staff from the E! Potosi Mine and the ASARCO operations for ransom. Mining properties |  | | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY PRELIMINARY DEPOSIT-TYPE MAP OF NORTHWESTERN...Northwestern Mexico Los Gavilanes Tungsten District El Antimonio District Magdalena District Cananea District...estudios geologicos, geoquimicos y geofisicos en el prospecto "El Alacran", Sonora - hasta Marzo de 1970 [Report...geological, geochemical and geophysical studies at the "El Alacran" prospect, Sonora - prior to March 1970]...y "El Alacran"- Reconocimiento geologico y geofisico regional en el districto de Nacozari, en el estado |  | | Book | | ralogie, die Wissenschaft Heute beschrankt sich die Mine- von den Mineralien, nicht mehr nur darauf, die...hierfiir ist die Misch- kristallreihe zwischen den Mine- ralien Enstatit (MgSiO3) und Hypersten (Mg,Fe)SiO3...oder Mineralien. durchscheinende Durchsichtige Mine- ralien dagegen zeigen unabhangig von ihrer Farbe...wenig reflektiert. Der Glanz wird matt. Sind im Mine- ral feinste Kristallfasern parallel zueinander...streuen winziger das Licht und bewirken Wachsglanz. El Salto (Uruguay). Die Stufe ist 12 cm grog. 5 Vollkommene |  | | Report (volume) | | and ask for a frank to return it UNITED STATES DEPARTMENT OF THE INTERIOR HAROLD L. ICKES, Secretary GEOLOGICAL...(nos. 1, 2). Chicago, 111. British Columbia, Department of Mines: Annual Reports of Minister of Mines...20, 21 (nos. 1-18). San Francisco. California, Department of Natural Resources, Division of Mines: Bulletins...1). San Francisco. California, University of, Department of Geological Sciences: Bulletin, vols. 21 (no...vol. 3 (nos. 2, 3). Berkeley, Calif. Canada, Department of Mines, Geological Survey: Summary Reports |  | | Book | | Junction Editors Fabio Cediel Consulting Geologist Department of Geology University EAFIT Medellín, Colombia...the Escuela de Minas (Medellín, 1887) and the Department of Geology and Geophysics at the Unversidad Nacional...enthusiastic academic gratitude. The Universidad EAFIT (Department of Geology, Medellín) provided fertile ground...Sciences Department, EAFIT University, Medellín, Colombia Fabio Cediel Consulting Geologist, Department of...Earth Sciences Department, EAFIT University, Medellín, Colombia David A. Foster Department of Geological |  | | Book | | University. In 1958, Wim was invited to join the Department of Geology of Louisiana State University (LSU)...ostracode researcher and founding chairman of that department. His hiring of Wire insured the continuation...along with the continued growth of the geology department. During his early years at LSU, Wim continued...of Trinidad. His teaching duties in the small department included structural geology and igneous and metamorphic...Anguilla, St. Martin, St. Croix, Costa Rica, Nicaragua, the Lesser Antilles, and Mexico. He systematically |  | | Journal (volume) | | percentage of manganese in a sample from the W. T. Gray mine of which an analysis is given on page 4 is 70.76...miles apart. Sam.ple No. I was from the W. T. Gray mine, 4V 2 miles north-northwest of the village of Pfeiffer...HAUSMANNITE 4 and Sample No. 2 was from the Club House mine, one-half mile north of the town of Cushman on another.... 4-778 Sample from W. T. Gray mine. Sample from Club House mine. Includes a trace of iron. for the...Pacaya, March, 1890, J. D. Smith 1941. 6229. P. El Salvador: Costa Rica: Without definite locality |
|
