 | | Journal (article/letter/editorial) | | de España (IGME), Ríos Rosas 23, 28003 Madrid, Spain AND CATHERINE GREENFIELD Department of Earth Science...sheeted vein systems from southwest England and Spain. The methods are based on fractal concepts and include...fracture systems and associated alteration in areas of Spain (Roberts et al., 1998, 1999). These studies demonstrated...range of Sn-W sheeted vein systems in Cornwall and Spain. These studies highlight the importance of an initial...investigated from southwest England and central Spain. All contain “sheeted vein” systems predominantly |  | Chicharro, Eva, Martín-Crespo, Tomás, Gómez-Ortiz, David, López-García, José Ángel, Oyarzun, Roberto, Villaseca, Carlos (2015) Geology and gravity modeling of the Logrosán Sn–(W) ore deposits (Central Iberian Zone, Spain) Ore Geology Reviews, 65. 294-307 doi:10.1016/j.oregeorev.2014.10.005 | Journal (article/letter/editorial) | | Logrosán Sn–(W) ore deposits (Central Iberian Zone, Spain) Eva Chicharro a,⁎, Tomás Martín-Crespo b, David...Madrid, Spain Dpt. Ciencias, ESCET, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain Dpt. Petrología... CSIC), Universidad Complutense, 28040 Madrid, Spain a r t i c l e i n f o Article history: Received...Variscan Belt hosts numerous Sn–W ore fields (e.g. Spain: Llorens and Moro, 2012a, 2012b; Mangas and Arribas...associated Sn–(W) mineralization at Logrosán (Cáceres, Spain), which is located in the southern part of |  | | Book | | ��������������������������� 551 José F. Duque-Trujillo, Teresa Orozco-Esquivel, Carlos Javier Sánchez...Universidad EAFIT, Medellín, Colombia José F. Duque-Trujillo Earth Sciences Department, EAFIT University, Medellín...Universitat de Barcelona, Barcelona, Catalonia, Spain xix xx Contributors Julian A. Lopez Departamento...Universitat de Barcelona, Barcelona, Catalonia, Spain J. Mesa-García Departamento de Ciencias de la Tierra...Universitat de Barcelona, Barcelona, Catalonia, Spain César Vinasco Departamento De Geociencias Y Medio |  | | Journal (article/letter/editorial) | | petrogenesis of the Jálama pluton (Central Iberian Zone, Spain) Alfonso Pesquera a,⁎, Pilar Montero b, Pedro P...de Bizkaia, Sarriena s/n, 48940 Leioa, Bizkaia, Spain Dpto. de Mineralogía y Petrología, Universidad de...de Granada Campus Fuentenueva, 18002 Granada, Spain a r t i c l e i n f o Article history: Received...Nisa-Alburquerque, Cabeza de Araya, Central Extremadura batholith and Campanario-La Haba (Fig. 1). These...Alburquerque; (4) Cabeza de Araya; (5) Central Extremadura Batholith; and (6) Campanario-La Haba. 2 A |  | | Report (chapter) | | Geominera de Espana, Rios Rosas 23, 28003 Madrid, Spain 3 Present address." T. H. Huxley School of Environment...n e r a l i z e d system, L a Codosera, Western Spain Analysis of ore-mineralized vein systems have also...exploration programme of the La Codosera area of western Spain (Roberts et al. 1991; Sanderson et al. 1994). Measured...thickness plots from the La Codosera area, southwest Spain. Number of veins per metre of core (N) with thickness...also broadly correlated with increasing amounts of gold, reported from the assays returned from each hole |  | Cerpa, Luis M., Bissig, Thomas, Kyser, Kurt, McEwan, Craig, Macassi, Arturo, Rios, Hugo W. (2013) Lithologic controls on mineralization at the Lagunas Norte high-sulfidation epithermal gold deposit, northern Peru. Mineralium Deposita, 48 (5) 653-673 doi:10.1007/s00126-013-0455-6 | Journal (article/letter/editorial) | | at the Lagunas Norte high-sulfidation epithermal gold deposit, northern Peru Luis M. Cerpa & Thomas Bissig...Abstract The 13.1-Moz high-sulfidation epithermal gold deposit of Lagunas Norte, Alto Chicama District...ite zone is observed. Company data suggest that gold is present in solid solution or micro inclusions...silica activities in the fluid. In the quartzite, gold mineralization is hosted in a fracture network filled...hydrothermal stage introduced only modest amounts of gold and is characterized by the presence of massive |  | | Journal (article/letter/editorial) | | near-surface, high sulfidation-type epithermal gold deposits with strong supergene oxidation was made...the district in late 1993 with initial full-year gold production in 1994 of 300,000 oz and a reported...International Finance Corp 5%) poured its 20-millionth gold ounce life-of-mine. Reported 2008 end-of-year oxide...reserves within the operating district are >13 Moz gold. Since exploration began in the district, over 20...The estimated oxide plus sulfide drill-indicated gold endowment within the district exceeds 70 Moz (2 |  | PÉREZ, NEMESIO M., HERNÁNDEZ, P. A., IGARASHI, G., TRUJILLO, I., NAKAI, S., SUMINO, H., WAKITA, H. (2008) Searching and detecting earthquake geochemical precursors in CO2-rich groundwaters from Galicia, Spain. GEOCHEMICAL JOURNAL, 42 (1) 75-83 doi:10.2343/geochemj.42.75 | Journal (article/letter/editorial) | | from Galicia, Spain NEMESIO M. P ÉREZ,1* P. A. HERNÁNDEZ,1 G. IGARASHI,2# I. TRUJILLO,3 S. NAKAI,4 H...(ITER), 38611 Granadilla, Tenerife, Canary Islands, Spain 2 Research Center for Prediction of Earthquakes...(CSIC), 38260 La Laguna, Tenerife, Canary Islands, Spain 4 Earthquake Research Institute, The University...seismic hazard map used for the building code in Spain. Searching for earthquake precursors of these seismic...geochemical, earthquakes, precursors, Galicia, Spain practices. Up to 11 earthquakes that produced surface |  | | Report (issue) | | in 44 of 133 samples; average 5.66 ppm. Anomalous gold in 58 of 133 samples; average 0.033 ppm, highest...Quaternary Deposit model: Epithermal quartz-alunite gold Deposit model number (After Cox and Singer, 1986...1979, 1981; Trujillo and others, 1982; MacKevett and Holloway, 1977 Primary reference: Trujillo and others...Alaska Resource Data File Site: Littlejohn ....gold to 5.6 ppm and silver to 33.2 ppm.... Type: Occurrence...rare quartz veins and disseminated Au and Hg (Trujillo and others, 1982), later work (Butherus, 1984) |  | | Report (issue) | | minerals: Gangue minerals: Deposit model: Epithermal gold vein (25b, 25c, 25d) Geologic description: "......anomalous Au samples were reported in area by Trujillo and others, 1982. Host rock: Calc-alkaline volcanic...Sand Point airport, near VABM "Red" Ore minerals: Gold, Galena, Chalcopyrite, Sphalerite Gangue minerals:...but all are narrow and poorly mineralized. Free gold in surface weathered zone and local assays of 1...and accuracy: Head of Baralof Bay Ore minerals: Gold, Galena, Sphalerite, Arsenopyrite, Pyrite Gangue |  | | Journal (article/letter/editorial) | | Isotope Data of the Raúl-Condestable Iron Oxide-Copper-Gold Deposit, Central Coast of Peru ANTOINE DE HALLER...a >32 million metric ton (Mt) iron oxide-copper-gold (IOCG) deposit located on the Peruvian coast, 90...considered Raúl-Condestable to be an iron oxide-copper-gold (IOCG) deposit. Although arc plutonism has been...setting of the Raúl-Condestable iron oxide-copper-gold deposit in the central coast of Peru. The location...Salazar and Landa, 1993; Vela, 1997; Benavides-Cáceres, 1999). Many problems remain concerning the nomenclature |  | Naranjo, Andrés, Horner, Johannes, Jahoda, Rudolf, Diamond, Larryn W., Castro, Adriana, Uribe, Aura, Perez, Carolina, Paz, Hermel, Mejia, Carlos, Weil, Jonas (2018) La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and Age Constraints. Economic Geology, 113 (3) 553-578 doi:10.5382/econgeo.2018.4562 | Journal (article/letter/editorial) | | propylitic alteration confined to the late stage. Three gold mineralization events are recognized at La Colosa... The early-stage intrusions contain the highest gold grades varying from 0.75 to 1 g/t Au, associated...the gold grades drop to 0.5 to 0.75 g/t Au, and pyrrhotite and pyrite are the major sulfides. Gold grades...g/t Au in the late-stage porphyries. The second gold-precipitating event formed sheeted veinlets of drusy...hydrothermal brine (21–28 wt % NaCl equiv) deposited gold at high grades (>1.5 g/t Au over >10 m drill core |  | Fernandez-Turiel, J.L., Garcia-Valles, M., Gimeno-Torrente, D., Saavedra-Alonso, J., Martinez-Manent, S. (2005) The hot spring and geyser sinters of El Tatio, Northern Chile. Sedimentary Geology, 180 (3) 125-147 doi:10.1016/j.sedgeo.2005.07.005 | Journal (article/letter/editorial) | | Almera-CSIC, Sole I Sabaris s/n, 08028 Barcelona, Spain Faculty of Geology, Dpt. Crystallography, Mineralogy...Barcelona, Marti i Franques s/n, 08028 Barcelona, Spain Faculty of Geology, Dpt. Geochemistry, Petrology...08028 Barcelona, Spain d IRNASA-CSIC, Cordel de Merinas 40-52, 37008 Salamanca, Spain b c Received...mineral exploration. Epithermal mineral deposits of gold, silver, copper and many other elements may originate...Lahsen, 1974; Cusicanqui et al., 1976; Lahsen and Trujillo, 1976; Giggenbach, 1978; Lahsen, 1988). Although |  | Fernández-Suárez, J., Gutierrez-Alonso, G., Johnston, S.T., Jeffries, T.E., Pastor-Galán, D., Jenner, G.A., Murphy, J.B. (2011) Iberian late-Variscan granitoids: Some considerations on crustal sources and the significance of “mantle extraction ages”. Lithos, 123 (1) 121-132 doi:10.1016/j.lithos.2010.09.010 | Journal (article/letter/editorial) | | 28040 Madrid, Spain Departamento de Geología, Universidad de Salamanca, 33700 Salamanca, Spain School of...absence of primary muscovite, associated molybdenum-gold mineralization in some cases. The K2O vs. SiO2 plot...Ma) I-type calc-alkaline granitoids in northern Spain, and Castro et al. (2003) for early Variscan (ca...Yeltes Monzogranite Cipérez Bt-Ms Monzogranite Trujillo Bt-Ms Monzogranite Mérida Bt-Ms Monzogranite Alburquerque...plutonic rocks of the Ollo de Sapo domain in Central Spain (CIZ). These authors found that the Ollo de J |  | | Book | | mymother she will start to cry. Execrable thirst for gold! This Page Intentionally Left Blank List of...inPeru, 1833-1898 2.3. Production and Mintingof Gold in Peru, 1800-1goo 2.4. Peruvian Exportsof Copper...1801-1900 2.3. Gold Production in Peru, 1897 2.4. Price Indexes for Copper, Silver, and Gold,c. 1870 2.5...Volume, Price, and Value of Copper, Silver, and Gold Production in Peru, 1903-1910 3.1. Types of Mines...Latin American mines, shifting large quantities of gold and silver to Europe, and setting off, in the words |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . . . 23 Gold . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . 24 Alluvial Gold Mining . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . 47 Gold . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . 55 Gold-Silver. . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . 55 Gold-Copper . . . . . . . . . . . . . . . . . . . . |  | | Report (issue) | | Cimarron Mining Company (CMC) as a cyanide mill for gold recovery from 1979 until 1982. In 1980 the New Mexico...processing contained large amounts of gold. In order to recover this gold, the iron-ore concentration process...process was evidently not recovering sufficient gold, so it was modified further to use a combination...and a metal stripper of the type used to recover gold from electronic parts. In February 1980 the New...shipped to the Asarco Smelter in El Paso for sale as gold concentrates. Asarco, after assaying the "concentrates |  | Janik, C.J., Goff, F., Sorey, M.L., Rytuba, J.J., Counce, D., Colvard, E.M., Huebner, M., White, L.D., Foster, A. (1999) Physical, chemical, and isotopic data for samples from the Anderson Springs area, Lake County, California, 1998-1999. Open-File Report Vol. 1999 (99-585) US Geological Survey doi:10.3133/ofr99585 | Report (issue) | | chemical analysis of geothermal fluids is given in Trujillo and others (1987), which includes appendices with...determined by BrCl oxidation, SnCl2 reduction, and dual gold amalgamation. All mercury analysis was performed...from geothermal manifestations are reported in Trujillo and others (1987) and Fahlquist and Janik (1992)...LANL using methods and equipment described in Trujillo and others (1987). REFERENCES Anderson, W., 1892...using stannous chloride reduction and two-stage gold amalgamation with gas phase detection: Marine Chemistry |  | | Journal (article/letter/editorial) | | Médica, CSIC, Juan de la Cierva, 3, E-28006 Madrid, Spain Departament de Química, Universitat de les Illes...de Valldemossa km 7.5, 07122 Palma de Mallorca, Spain Correspondence: ibon@iqm.csic.es (I.A.); iqmbe17@iqm...bonding interactions in a trichlorido-(1-hexylcytosine)gold(III) complex [67]. Moreover, this study A recent...bonding interactions in a trichlorido-(1-hexylcytosine)gold(III) complex [67]. Moreover, this studyis also included...bonding interactions in a trichlorido-(1-hexylcytosine)gold(III) complex [67]. Moreover, this study also included |  | Havens, Scott, Marks, Danny, Sandusky, Micah, Hedrick, Andrew, Johnson, Micah, Robertson, Mark, Trujillo, Ernesto (2020) Automated Water Supply Model (AWSM): Streamlining and standardizing application of a physically based snow model for water resources and reproducible science. Computers & Geosciences, 144. 104571pp. doi:10.1016/j.cageo.2020.104571 | Journal (article/letter/editorial) | | Micah Johnson b, a, Mark Robertson a, Ernesto Trujillo b, a a b USDA Agricultural Research Service,...can hamper application and reproducibility. The gold standard of full reproducibility in science can...with Docker in 2018 meant that AWSM has reached the gold standard of reproducible science as the results...quantities of spatial data. 2.2. Reproducibility The gold standard of reproducible research is full replication... M., Hedrick, A., Johnson, M., Robertson, M., Trujillo, E., 2019c. Automated water supply model (AWSM) |  | Kamenov, George D., Escobar, Jaime, Elliott Arnold, T., Pardo-Trujillo, Andrés, Gangoiti, Gotzon, Hoyos, Natalia, Curtis, Jason H., Bird, Broxton W., Isabel Velez, Maria, Vallejo, Felipe, Trejos-Tamayo, Raul (2020) Appearance of an enigmatic Pb source in South America around 2000 BP: Anthropogenic vs natural origin. Geochimica et Cosmochimica Acta, 276. 122-134 doi:10.1016/j.gca.2020.02.031 | Journal (article/letter/editorial) | | Escobar b,c, T. Elliott Arnold d, Andrés Pardo-Trujillo e, Gotzon Gangoiti f, Natalia Hoyos g, Jason H...Paı́s Vasco-Euskal Herriko Unibertsitatea, Bilbao, Spain g Department of History and Social Sciences, Universidad...Small Pb isotope differences between a record from Spain and El Triunfo indicate that the enigmatic Pb that...compared to peat records from Europe and Spain ore deposits. Data for Spain peat from Kylander et al. (2005)...Switzerland peat from Shotyk et al. (2002), and Spain ore deposits from Santos Zalduegui et al. (2004) |  | | Report (volume) | | Geochemical information 18 South Perch a Creek-Trujillo Canyon gap 18 Tierra Blanca district-western part...of lead, vanadium, fluorspar, and gold, and also the old Spanish gold mines near the northern end of the...Chloride) have also been important gold producers, but the ratio of gold to silver in the ore declines southward...the southern part of the belt which produced much gold is the Tierra Blanca district. Lead has been a major...western part of the Tierra Blanca district, rich gold ore was mined from the Upper Cambrian Bliss Sandstone |  | Piedrahita, V.A., Bernet, M., Chadima, M., Sierra, G.M., Marín-Cerón, M.I., Toro, G.E. (2017) Detrital zircon fission-track thermochronology and magnetic fabric of the Amagá Formation (Colombia): Intracontinental deformation and exhumation events in the northwestern Andes. Sedimentary Geology, 356. 26-42 doi:10.1016/j.sedgeo.2017.05.003 | Journal (article/letter/editorial) | | Bulletin 82, 2685-2712. Cediel, F., Shaw, R.P., Cáceres, C., 2003. Tectonic Assembly of the Northern Andean...Sciences 3, 71–84. Echeverri, S., Cardona, A., Pardo-Trujillo, A., Borrero, C., Rosero, S., López, S., 2015...evolution in the Cameros basin (Iberian Range, NE NU Spain) from magnetic subfabrics and mesostructures. Journal...pp. 1675. D Leal-Mejía, H., 2011. Phanerozoic gold metallogeny in the Colombian Andes: A tectono- ...PhD Thesis, Universitat de Barcelona, Barcelona, Spain. Lonsdale, P. 2005. Creation of the Cocos and Nazca |  | | Journal (article/letter/editorial) | | edu/t-and-c). 508 SIDNEY POWERS Coast region between Trujillo, Spanish Honduras, and Livingston, Guatemala (Fig...valley. This range extends into the sea east of Trujillo. This content downloaded from 080.082.077.083...boundary, but at Quebradas de Oro, in Guatemala, placer gold is mined hydraulically, the country rock being hornblende...Guatemala, to Trujillo, Honduras, especially near the foot of the mountains between Tela and Trujillo. Between...the Sierra de Pija between the Ulua River and Trujillo igneous and metamorphic rocks were found in every |  | Alkorta, Ibon, Trujillo, Cristina, Sánchez-Sanz, Goar, Elguero, José (2020) Regium Bonds between Silver(I) Pyrazolates Dinuclear Complexes and Lewis Bases (N2, OH2, NCH, SH2, NH3, PH3, CO and CNH) Crystals, 10 (2) 137 doi:10.3390/cryst10020137 | Journal (article/letter/editorial) | | PH3, CO and CNH) Ibon Alkorta 1, * , Cristina Trujillo 2 , Goar Sánchez-Sanz 3,4 1 2 3 4 * and José...Médica, CSIC, Juan de la Cierva, 3, E-28006 Madrid, Spain; iqmbe@iqm.csic.es School of Chemistry, Trinity...[CrossRef] [PubMed] Solimannejad, M.; Ramezani, V.; Trujillo, C.; Alkorta, I.; Sánchez-Sanz, G.; Elguero, J...Interpretation of the Effects of Nanostructure in Gold and Platinum Catalysis. JACS 2017, 139, 11012–11015...2019, 33, e4806. [CrossRef] Sánchez-Sanz, G.; Trujillo, C.; Alkorta, I.; Elguero, J. Understanding Regium |
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