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Ignacio San José, Cristina de ; Castiñeiras García, Pedro ; Márquez González, Álvaro ; Oyarzun, Roberto ; Lillo Ramos, F. Javier ; López Ruiz-Labranderas, Iván | Taylor & Francis | 2003The rocks of the 1982 eruption of El Chichón volcano (Chiapas, Mexico) display a series of geochemical and mineralogical features that make them a special case within the NW-trending Chiapas volcanic belt. The rocks are transitional between norm[...]texto impreso
Lillo Ramos, F. Javier ; Oyarzun, Roberto ; Ortega Menor, Lorena | Sociedad Geológica de España | 1996Sufphur isotope data from severa/ base metals-Ba-(F)-(Ag) and Ag-base metals vein-type deposits in the Central Jberian Zone of the Hesperian Massif suggest a magmatic and/or metasedimentary origin of this ore-forming component. Deposits exclusiv[...]texto impreso
Oyarzun, Roberto ; Viedma Molero, Cristóbal ; Márquez González, Álvaro ; Lillo Ramos, F. Javier | Blackwell Publishing Ltd | 2003A mudflow-like deposit resting on the bottom of the East Gorgonum Crater (Mars; 37.4S, 168.0W) may provide new insight regarding the debate on the existence of water over the Martian surface. Because water in a mudflow is confined to a porous me[...]texto impreso
Martín Crespo, Tomás ; Martín Velázquez, Silvia ; Gómez Ortiz, David ; Ignacio San José, Cristina de ; Lillo Ramos, F. Javier | IWA Publishing | 2011This work presents the results of a geochemical and geophysical characterization of the Monte Romero and La Naya mine ponds, belonging to the Cueva de la Mora and Riotinto mine districts, respectively, based on mineralogical, geochemical and geo[...]texto impreso
From a mineralogical point of view the La Unión ore field (SE Spain) can be regarded as an oddity as some of its hydrothermal, stratabound type deposits display an extremely unusual paragenesis comprising magnetite ± greenalite ± minnesotaite ± [...]texto impreso
Oyarzun, Roberto ; Lillo Ramos, F. Javier ; López García, José Ángel ; Esbrí, J.M. ; Cubas, Paloma ; Llanos, W. ; Higueras, Pablo | Elsevier Science B.V. | 2011The Mazarrón epithermal ore deposits (SE Spain) formed in Miocene time in relation to the emplacement of dacitic–rhyodacitic domes. The Pb–(Ag)–Zn ore deposits are of the high sulphidation vein and stockwork type. There are two main mining sites[...]
