 | | Journal (article/letter/editorial) | | pp, 164'2-1646 K-Ar Age Studiesin the Fresnillo Silver District, Zacatecas,Mexico BARBU LANG, GIDEON...epithermalveinsandpalcohotspringdeposits. The purposeof the K-Ar agestudywasto elucidate the temporalrelationshipbetweenthe...latteraresomeofthemoreimportantorebodies of the Fresnillo district. The K-Ar measurements demonstrate an evolvingpatternof...canbe deducedfromthe localgeologicrelationships. The K-Ar agesalsoemphasizethe fundamentalassociation be...betweenintrusivemagmatism and metallization in the Fresnillo district. Introduction (1925), Stone and MacCarthy |  | | Journal (article/letter/editorial) | | LONG-LIVED HYDROTHERMAL SYSTEM IN THE FRESNILLO SILVER DISTRICT, MEXICO: CONSTRAINTS FROM 40Ar/39Ar GEOCHRONOLOGY...Department, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801 2New Mexico Bureau of...Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, New Mexico 87801 Abstract...Abstract The ore deposits of Fresnillo have produced silver for more than 450 years and contain resources...resources of approximately 1 Goz. Mineralization in Fresnillo occurs in epithermal veins hosted by a Middle |  | | Journal (article/letter/editorial) | | pp. 1583-1596 Ore Deposits at the Fresnillo Mine, Zacatecas,Mexico DELFINO C. RUVALCABA-RUIZ PasajeE...FraccionamientoIndustr[al Aviation, SanLu(s Potos(78140, Mexico AND TOMMY B. THOMPSON Departmentof EarthResources... with reliefs lessthan 300 m lie within the FRESNILLO islocatedonthe Mexicanplateaubetween productivearea...Santa Eulalio II. FiâąESNIL :3. Parrol 12. Zacatecas 4. Santa 5. Son Barbara Francisco 13. Santo...95 Ăž dose 90 Ăž km I i FIG. 1. Index map of Mexico showingthe locationof Fresnilloand other baseand |  | | Journal (article/letter/editorial) | | February 2019 Please cite this article as: L. Wang, K-Z. Qin, G-X. Song, G-M. Li, A review of intermediate... the most representative examples occurring in Mexico. The occurrence of the two subtypes of IS are largely...being the important source of precious metals for Mexico, the United States, Canada, Chile, Peru, Papua...based on a summary of 35 of epithermal deposits in Mexico, noting an atypical epithermal style with upper...polymetallic mineralization (Zn-Pb-Cu), largely located in Mexico (CamprubĂ and Albinson, 2007). 3. Distribution |  | | Book (volume) | | ECONOMIC GEOLOGY, MEXICO The Geology of North America O r > W 4^ *1^ ^ ^ \ \ f ax4 u \ \...of North America Volume P-3 Economic Geology^ Mexico Edited by Guillermo P. Salas Geologo Consultor...Centro Minero Nacional Carretera Mexico-Pachuca Pachuca, Hgo., Mexico, D.F. 1991 EXPLORATION LIBRARY...reserved. Geologia economica de Mexico. English. Economic geology, Mexico / edited by Guillermo P. Salas...; v. P-3) Translation of Geologia economica de Mexico. Includes bibliography references and index. ISBN |  | Camprubi, A., Ferrari, L., Cosca, M. A., Cardellach, E., Canals, A. (2003) AGES OF EPITHERMAL DEPOSITS IN MEXICO: REGIONAL SIGNIFICANCE AND LINKS WITH THE EVOLUTION OF TERTIARY VOLCANISM. Economic Geology, 98 (5) 1029-1037 doi:10.2113/gsecongeo.98.5.1029 | Journal (article/letter/editorial) | | pp. 1029â1037 AGES OF EPITHERMAL DEPOSITS IN MEXICO: REGIONAL SIGNIFICANCE AND LINKS WITH THE EVOLUTION...Postal 1-742, 76230 Santiago de QuerĂ©taro, Qro., Mexico MICHAEL A. COSCA, Institut de MinĂ©ralogie et GĂ©ochimie...interpretations from seven deposits in central Mexico, and a new age for the La Guitarra deposit, Temascaltepec...age for several epithermal deposits in southern Mexico, the ages from La Guitarra show that, south of...age of Tertiary epithermal deposits in central Mexico. Our study shows that mineral deposits coincide |  | Pearson, Mark F., Clark, Kenneth F., Porter, Elise W., Gonzalez S., Octavio (1988) Mineralogy, fluid characteristics, and silver distribution at Real de Angeles, Zacatecas. Economic Geology, 83 (8) 1737-1759 doi:10.2113/gsecongeo.83.8.1737 | Journal (article/letter/editorial) | | and Silver Distribution at Real de Angeles,Zacatecas,Mexico MARK F. PEARSON, Chen-Northern Inc., P.O.... Box 4699, Helena, Montana 59604 KENNETH F. CLAâąK, Departmentof GeologicalSciences, Universityof Texasat...tonnagedepositis locatedin the southeastern part of Zacatecas,on the westernedge of the Mesa Central in transitionwith... ,oooo. QaI âą. MADE.Oâą'_ ,_Sâą,oâąo. _'..'.." ] K-Tigr Ăž âą MESA CENTRAL Alluvium FanandTolus râą>...southeastern Zacatecas (simplified from Clark, 1984). REAL DE ANGELESDEPOSIT,ZACATECAS 1739 gradeof |  | Camprubi, A., Gonzalez-Partida, E., Iriondo, A., Levresse, G. (2006) MINERALOGY, FLUID CHARACTERISTICS, AND DEPOSITIONAL ENVIRONMENT OF THE PALEOCENE EPITHERMAL Au-Ag DEPOSITS OF THE EL BARQUENO DISTRICT, JALISCO, MEXICO. Economic Geology, 101 (1) 235-247 doi:10.2113/gsecongeo.101.1.235 | Journal (article/letter/editorial) | | DEPOSITS OF THE EL BARQUEĂO DISTRICT, JALISCO, MEXICO ANTONI CAMPRUBĂ,â EDUARDO GONZĂLEZ-PARTIDA, Centro...15.5, A.P. 1-742, 76230 Santiago de QuerĂ©taro, Mexico ALEXANDER IRIONDO, Centro de Geociencias, Universidad...15.5, A.P. 1-742, 76230 Santiago de QuerĂ©taro, Mexico, and Department of Geological Sciences, University...15.5, A.P. 1-742, 76230 Santiago de QuerĂ©taro, Mexico Abstract The El Barqueño epithermal vein district...southwestern part of the Sierra Madre Occidental of Mexico. It is made up of several polymetallic (Au-Ag-Cu-Zn-Pb) |  | Escalona-AlcĂĄzar, Felipe de JesĂșs, Solari, Luigi, GarcĂa y BarragĂĄn, Juan Carlos, Carrillo-Castillo, Carlos, Bluhm-GutiĂ©rrez, Jorge, GarcĂa-Sandoval, Perla, Nieto-Samaniego, Ăngel Francisco, NĂșñez-Peña, Ernesto Patricio (2016) The Palaeocene-early Oligocene Zacatecas conglomerate, Mexico: sedimentology, detrital zircon UâPb ages, and sandstone provenance. International Geology Review, 58 (7) 826-848 doi:10.1080/00206814.2015.1125809 | Journal (article/letter/editorial) | | com/loi/tigr20 The Palaeocene-early Oligocene Zacatecas conglomerate, Mexico: sedimentology, detrital zircon UâPb...(2016): The Palaeocene-early Oligocene Zacatecas conglomerate, Mexico: sedimentology, detrital zircon UâPb...1125809 The Palaeocene-early Oligocene Zacatecas conglomerate, Mexico: sedimentology, detrital zircon UâPb...Ciencias de la Tierra, Universidad AutĂłnoma de Zacatecas, Zacatecas, MĂ©xico; bCentro de Geociencias, Universidad...characterization of the Zacatecas Conglomerate, which belongs to the Palaeogene red beds of central Mexico, deposited |  | | Journal (issue) | | very fine examples have recently been recovered in Mexico and in this article we will compare them to some...silver crystals are not common from Mexico, silver wires from Mexico are spectacular and compare well to...page 2) An extremely fine matrix wire silver from Mexico. How NOT to Disperse a Collection Tony Nikischer...page 5) Mineral News ----2 November 2005 ---- Mexico, like Peru, has recently produced some nice wire...complement crystals and wires from here. In Zacatecas, the Fresnillo region has produced in the past - spindly |  | | Journal (article/letter/editorial) | | System, Pachuca Real del Monte District, Hidalgo, Mexico* JOHN E. DREIERâ 13790 Braun Road, Golden, Colorado...Miocene age that total about 2,700 m in thickness. K-Ar dating of the volcanic rocks and the veins indicates...coarsegrained crystalline quartz, johansennite, K-feldspar, albite, clinozoisite, epidote, and hematite...crystalline quartz and associated johansennite, K-feldspar, and clinozoisite precipitated from fluids at...district (Pachuca), located in Hidalgo, Mexico, about 90 km north of Mexico City (Fig. 1), is one of the worldâs |  | Simmons, S. F., Arehart, G., Simpson, M. P., Mauk, J. L. (2000) Origin of Massive Calcite Veins in the Golden Cross Low-Sulfidation, EpithermalAu-Ag Deposit, New Zealand. Economic Geology, 95 (1) 99-112 doi:10.2113/gsecongeo.95.1.99 | Journal (article/letter/editorial) | | epithermal deposits (e.g., Kushikino, Japan; Fresnillo, Mexico), their origin has not been investigated....Abundance Plagioclase phenocrysts, groundmass K feldspar (adularia) 0 to 5% Vein filling Plagioclase...calcite fills structures on the periphery of the Fresnillo district (Simmons, 1991) and in the upper parts...deposits in the southwestern United States and Mexico (Buchanan, 1981). Late barren calcite also occurs...Japan (Matsuhisa et al., 1985). For Golden Cross, Fresnillo, and Kushikino, the massive calcite veins form |  | | Report (issue) | | GeologyâMexico. 2. Geology, StructuralâMexico. 3. Faults (Geology)âMexico. 4. Ore depositsâMexico. I. Alaniz-Ălvarez...The evolution of Middle America and the Gulf of Mexico-Caribbean Sea region during Mesozoic time: Geological...Tectonostratigraphic Terranes and Tectonic Evolution of Mexico: Geological Society of America Special Paper 278...calc-alkaline rhyolite suite with intermediate to high K and relatively low Fe contents. Late Eocene to Miocene...and copper ore deposits (e.g., Fresnillo and Juani- 3 cipio, Zacatecas; Cananea and Nacozari, Sonora; |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Qin, Kezhang, Zhao, Junxing (2019) Origin and evolution of hydrothermal fluids in the Marshoun epithermal PbâZnâCu (Ag) deposit, Tarom-Hashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 113. 103087 doi:10.1016/j.oregeorev.2019.103087 | Journal (article/letter/editorial) | | article as: H. Kouhestani, M.A. Asghar Mokhtari, K. Qin, J. Zhao, Origin and evolution of hydrothermal...Nabatian et al., 2014, 2016) and have metaluminous, high-K calc-alkaline (shoshonitic) and I-type geochemical...predominantly of plagioclase, clinopyroxene, K-feldspar, and hornblende, with minor amounts of biotite...and lithic tuff comprising broken quartz and K-feldspar phenocrysts, and sericitized lithic fragments...Spherulites display radial, fan and spotty quartz and feldspar needle forms surrounded by secondary quartz in |  | Montoya-Lopera, Paula, Levresse, Gilles, Ferrari, Luca, Orozco-Esquivel, Teresa, HernĂĄndez-Quevedo, Gabriela, Abdullin, Fanis, Mata, Luis (2020) New geological, geochronological and geochemical characterization of the San Dimas mineral system: Evidence for a telescoped Eocene-Oligocene Ag/Au deposit in the Sierra Madre Occidental, Mexico. Ore Geology Reviews, 118. 103195 doi:10.1016/j.oregeorev.2019.103195 | Journal (article/letter/editorial) | | Eocene-Oligocene Ag/Au deposit in the Sierra Madre Occidental, Mexico Paula Montoya-Lopera, Gilles Levresse, Luca Ferrari...Eocene-Oligocene Ag/Au deposit in the Sierra Madre Occidental, Mexico, Ore Geology Reviews (2019), doi: https://doi.org/10...Ag/Au deposit in 3 the Sierra Madre Occidental, Mexico. 4 5 Paula Montoya-Lopera1, Gilles Levresse1*...76230, QuerĂ©taro, Qro, Mexico de Geociencias, Universidad Nacional AutĂłnoma de Mexico, Campus Juriquilla...Juriquilla, 10 2 11 Juriquilla, QuerĂ©taro, Mexico. 12 3First Laboratorio Interinstitucional de GeocronologĂa |  | Siesgesmund, Siegfried, LĂłpez-Doncel, RubĂ©n, Sieck, Pascal, Wilke, Hendrik, Wemmer, Klaus, Frei, Dirk, Oriolo, SebastiĂĄn (2018) Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa MarĂa de la Paz district (Sierra del Fraile, Mexico) Ore Geology Reviews, 94. 310-325 doi:10.1016/j.oregeorev.2018.02.010 | Journal (article/letter/editorial) | | Santa MarĂa de la Paz district (Sierra del Fraile, Mexico) Siegfried Siesgesmund, RubĂ©n LĂłpez-Doncel, Pascal...Siesgesmund, R. LĂłpez-Doncel, P. Sieck, H. Wilke, K. Wemmer, D. Frei, S. Oriolo, Geochronological and...Santa MarĂa de la Paz district (Sierra del Fraile, Mexico), Ore Geology Reviews (2018), doi: https://doi...Santa MarĂa de la Paz district (Sierra del Fraile, Mexico) Siegfried Siesgesmund1, RubĂ©n LĂłpez-Doncel2, Pascal...PotosĂ, Av. Manuel Nava 5, 78240 San Luis PotosĂ, Mexico 3 DivisiĂłn de Geociencias Aplicadas, Instituto |  | | Book | | ... 1.3.4 The Cumobabi Breccia Pipe Deposits, Mexico................................. 1.3.5 Mineralized.... 1.5.3 The Baguio, Philippines and Thyoltita, Mexico Vein Systems ..................... 1.5.4 Mineralization...1.2 The Providencia Ag-Pb-Zn-Cu Deposit, Zacatecas, Mexico ...................... . 2.1.3 Limestone Replacement.................. . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .............................in the southwestern United States and northern Mexico (Fig. 2; Coney and Reynolds 1977; Keith 1978) during |  | Kouhestani, Hossein, Mokhtari, Mir Ali Asghar, Qin, Kezhang, Zhao, Junxing (2019) Fluid inclusion and stable isotope constraints on ore genesis of the Zajkan epithermal base metal deposit, TaromâHashtjin metallogenic belt, NW Iran. Ore Geology Reviews, 109. 564-584 doi:10.1016/j.oregeorev.2019.05.014 | Journal (article/letter/editorial) | | Nabatian et al., 2014, 2016) and have metaluminous, high-K calc-alkaline (shoshonitic) and I-type geochemical...THMB has been characterized by waning phase of high-K calc-alkaline to alkaline magmatism (Amini et al....tuïŹ and lithic tuïŹ comprising broken quartz and K-feldspar phenocrysts, and sericitized lithic fragments...textures and consists of plagioclase, quartz, K-feldspar, biotite, and hornblende. Accessory minerals...textures, and consist of plagioclase, clinopyroxene, K-feldspar, and hornblende, with accessory biotite, opaque |  | | Journal (article/letter/editorial) | | 69 NOTE ON A CORUNDI]M FROM A NEW LOCALITY IN MEXICO. Cenr,os Cesrno. An. I*t. Geol.Jlterico,4, 31-36...1916-f917. A report of an occurrence of emery at Fresnillo, Zacatecw, I\Iexico. E. T. W. NICTAUX-TORBROOK...temps. the K feldspar is monoclinic, and at high temps. also monoclinic if over 30/e of the K compound...compound is present. The miscibility of K and Na feldspars is greater at high temps. w. F. F. 70 THE AMERICAN |  | Hui, Kaixuan, Qin, Kezhang, Li, Zhenzhen, Wang, Fangyue, Gao, Shen, Han, Ri, Kan, Jing, Zhao, Junxing, Li, Guangming (2021) The linkage between the Jiawula-Chaganbulagen Ag-Pb-Zn and adjacent porphyry Mo-Cu mineralization, Inner Mongolia, northeast China. Ore Geology Reviews, 134. 104153pp. doi:10.1016/j.oregeorev.2021.104153 | Journal (article/letter/editorial) | | 100029, China. E-mail address: kzq@mail.iggcas.ac.cn (K. Qin). https://doi.org/10.1016/j.oregeorev.2021.104153...0169-1368/© 2021 Elsevier B.V. All rights reserved. K. Hui et al. Ore Geology Reviews 134 (2021) 104153...Xinlin-Xiguitu, and MYS = MudanjiangYilan suture. 2 K. Hui et al. Ore Geology Reviews 134 (2021) 104153...31 = 17J3C-2, and 32 = 18 J-2-1D, 18 J-2-1E. 3 K. Hui et al. Ore Geology Reviews 134 (2021) 104153...porphyry consists of plagioclase (35â40 vol%), K-feldspar (35â40 vol%), biotite (5â10 vol%), hornblende |  | Mehrabi, Behzad, Siani, Majid Ghasemi, Goldfarb, Richard, Azizi, Hossein, Ganerod, Morgan, Marsh, Erin Elizabeth (2016) Mineral assemblages, fluid evolution, and genesis of polymetallic epithermal veins, Glojeh district, NW Iran. Ore Geology Reviews, 78. 41-57 doi:10.1016/j.oregeorev.2016.03.016 | Journal (article/letter/editorial) | | variably altered alkali feldspar, quartz, and biotite in a matrix rich in alkali feldspar. Several subvolcanic...Igneous rocks in Glojeh district are classified as high-K calc-alkaline to shoshonitic series. Mineralization...the Glojeh district is associated with these high-K calc-alkaline to shoshonitic volcano-plutonic rocks...South Glojeh mineralized veins (Table 1). PT Feldspar and biotite from the Varmarziar granodiorite are...by the complete replacement of plagioclase and K-feldspar by minerals such as montmorillonite, illite, |  | | Journal (article/letter/editorial) | | steeply, and range from 1 to 10 m in width. High K-calc-alkaline volcanic deposits containing plagioclase...illite + pyrite ( montmorillonite  calcite  K-feldspar) prevails regionally, and its formation is attributed...<10 m from the vein, the assemblage quartz + K-feldspar + pyrite  illite dominates, forming an alteration...that cross cuts regional alteration. Quartz and K-feldspar increase in abundance towards the vein. Quartz...mineralization with rhomb-shaped crystals of K-feldspar (adularia). Pyrite, plus lesser marcasite, arsenopyrite |  | | Journal (article/letter/editorial) | | example, studied metal distributions in the Fresnillo district, Mexico, and found that the variance in metal...sphalerite crystals, as did Loucks (1984) at Topia, Mexico.4 These patterns are commonly ascribed to indicate...the silver-base metal epithermal veins at Fresnillo, Mexico (Simmons 1991). Henley et al (1997) have examined...Chile, Gustafson & Hunt (1975) noted banding of K-feldspar in early veins and more common banding in later...for example, appear to be determined by illiteK-feldspar-epidote/zeolite-quartz-calcite reactions, such |  | Grancea, Luminita, Bailly, Laurent, Leroy, Jacques, Banks, David, Marcoux, Eric, MilĂ©si, Jean, Cuney, Michel, AndrĂ©, Anne, Istvan, Dumitru, Fabre, CĂ©cile (2002) Fluid evolution in the Baia Mare epithermal gold/polymetallic district, Inner Carpathians, Romania. Mineralium Deposita, 37 (6) 630-647 doi:10.1007/s00126-002-0276-5 | Journal (article/letter/editorial) | | hydrothermal ïŹuids were NaâKâLiâCa chloride solutions with lesser amounts of SO4 and F. The Na/K ratios and the stable...deposition of felsic tuïŹs and ignimbrites. According to KâAr dating, this event was followed by Sarmatian and...(14â7 Ma) in the Baia Mare area belongs to the medium-K, calc-alkaline association which has a high content...doubly distilled water leachates, and the cations (Na, K, Li) by atomic emission spectroscopy. The calculated...described by Simmons (1991) for the Fresnillo deposit in Mexico. Salinity variations might also appear |  | Davies, A. G. S., Cooke, D. R., Gemmell, J. B., van Leeuwen, T., Cesare, P., Hartshorn, G. (2008) Hydrothermal Breccias and Veins at the Kelian Gold Mine, Kalimantan, Indonesia: Genesis of a Large Epithermal Gold Deposit. Economic Geology, 103 (4) 717-757 doi:10.2113/gsecongeo.103.4.717 | Journal (article/letter/editorial) | | (QP; 19.8 ± 0.1 Ma zircon U-Pb age) and quartz-feldspar-phyric rhyolite (QFP; 19.5 ± 0.1 Ma zircon U-Pb...volcanic cones and large plateau basalt flows occur. A K/Ar age of 0.97 ± 0.02 Ma was obtained from a basalt...EoceneOligocene Pliocene Pleistocene 200 Quartz-feldspar-phyric rhyolite Undifferentiated mafic volcanic...Andesite U. Eoc.Cret. Oli. 200 600 E Quartz-feldspar-phyric rhyolite C1 facies: illite-pyrite-cemented...illite, kao = kaolinite, pyr = pyrite, QFP = quartz-feldspar-phyric rhyolite, QP = quartz-phyric rhyolite, |
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