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León Buendía, Ricardo Fco. ; Somoza Losada, Luis ; Giménez Moreno, Carmen Julia ; Dabrio, Cristino J. ; Ercilla, Gemma ; Praeg, Daniel ; Díaz del Río, Víctor ; Gómez Delgado, Montserrat | Elsevier Science B.V., Amsterdam. | 2009This paper presents a computational model for mapping the regional 3D distribution in which seafloor gas hydrates would be stable, that is carried out in a Geographical Information System (GIS) environment. The construction of the model is compr[...]texto impreso
Borruel Abadía, Violeta ; Fernández Barrenechea, José María ; Galán Abellán, Ana Belén ; Alonso Azcárate, Jacinto ; Horra del Barco,, Raúl, De la ; Luque del Villar, Francisco Javier ; López Gómez, José | Elsevier Science B.V., Amsterdam. | 2016-07In this paper, a method based on element mapping of randomly selected areas of thin sections on electron microprobe is proposed to quantify the relative contents of strontium-rich hydrated aluminium phosphate-sulphate (APS) minerals in silicicla[...]texto impreso
Gómez Fernández, Juan José ; Arias Fernández, María del Carmen | Elsevier Science B.V., Amsterdam. | 2010Here we present the results of the study of two Lower Toarcian carbonate sections located in the Iberian Range of central Spain. Analyses of stable isotope on belemnite calcite allowed calculation of seawater palaeotemperature variations, which [...]texto impreso
Domínguez Castro, Fernando ; Santisteban Navarro, Juan Ignacio ; Barriendos, Mariano ; Mediavilla López, Rosa María | Elsevier Science B.V., Amsterdam. | 2008Rogation (ceremonies to ask God for rain: pro-pluvia, or to stop raining: pro-serenitate) analysis is an effective method to derive information about climate extremes from documentary data. Weighted annual sum by levels has been a widespread tec[...]texto impreso
Sánchez Pastor, Nuria ; Pina Martínez, Carlos Manuel ; Fernández-Díaz, Lourdes | Elsevier Science B.V., Amsterdam. | 2006This paper deals with the relationship between habit and compositional changes in crystals of the BaxSr1xSO4 solid solution at 25 8C and 1 atm. Crystals corresponding to the whole range of compositions of the BaxSr1xSO4 solid solution have been [...]texto impreso
Villaseca González, Carlos ; Martín Romera, Cristina ; De la Rosa Díaz, Jesús Damián ; Barbero González, Luis C. | Elsevier Science B.V., Amsterdam. | 2003Accessory minerals are thought to play a key role in controlling the behaviour of certain trace elements such as REE, Y, Zr, Th and U during crustal melting processes under high-grade metamorphic conditions. Although this is probably the case at[...]texto impreso
Calvo Sorando, José Pedro ; Jones, B.F. ; Bustillo Revuelta, Manuel ; Fort González, Rafael ; Alonso-Zarza, Ana María ; Kendall, C. | Elsevier Science B.V., Amsterdam. | 1995Lacustrine and alluvial carbonate facies have been investigated in Middle Miocene successions of the western side of the Madrid Basin in order to evaluate paleoenvironments in which carbonates formed. Carbonate facies are varied and include: ( 1[...]texto impreso
Galindo Francisco, Mª del Carmen ; Tornos Arroyo, Fernando ; Darbishyre, D.P.F. ; Casquet, César | Elsevier Science B.V., Amsterdam. | 1994Fluorite and barite-rich veins ( + sulphides) of the Sierra del Guadarrama (Spanish Central System) are usually hosted by Hercynian granitoids. Zoned fluorites from one of these veins have a Sm-Nd age of 145 ± 18 Ma. This age is similar to the K[...]texto impreso
Casquet, César ; Fanning, C.M. ; Galindo Francisco, Mª del Carmen ; Pankhurst, R.J. ; Rapela, Carlos W. ; Torres , P. | Elsevier Science B.V., Amsterdam. | 2010The enigmatic Arequipa Massif of southwestern Peru is an outcrop of Andean basement that underwent Grenville-age metamorphism, and as such it is important for the better constraint of Laurentia–Amazonia ties in Rodinia reconstruction models. U–P[...]texto impreso
Fraguas Herráez, Ángela Raquel ; Comas Rengifo, María José ; Gómez Fernández, Juan José ; Goy, Antonio | Elsevier Science B.V., Amsterdam. | 2012Quantitative analysis of Late Pliensbachian–Early Toarcian calcareous nannofossil assemblages from the West Rodiles section (Asturias, Northern Spain) has been performed in order to interpret the paleoenvironmental changes that occurred during t[...]texto impreso
Pina Martínez, Carlos Manuel ; Enders, Michael ; Putnis, Andrew | Elsevier Science B.V., Amsterdam. | 2000In this paper we present a new approach to the problem of the crystallisation in solid solution–aqueous solution (SS–AS) systems, in which two main controlling factors have been considered: (i) the supersaturation state of the multicomponent sol[...]texto impreso
Pina Martínez, Carlos Manuel ; Putnis, Andrew ; Astilleros García-Monge, José Manuel | Elsevier Science B.V., Amsterdam. | 2004In this paper, we present a generalisation of the classical growth rate equations to the case of crystallisation in solid solution–aqueous solution (SS-AS) systems. In these new equations, basic growth parameters, interfacial free energy and sup[...]texto impreso
Fernández-Díaz, Lourdes ; Astilleros García-Monge, José Manuel ; Pina Martínez, Carlos Manuel | Elsevier Science B.V., Amsterdam. | 2006Calcite crystals were grown in the presence of small concentrations (50, 200, and 600 ppm) of divalent cations (Ba2+, Sr2+, Co2+ and Mn2+) in a silica hydrogel medium. The calcite crystals grown in the presence of cations larger than Ca2+ (Ba2+ [...]texto impreso
Astilleros García-Monge, José Manuel ; Fernández-Díaz, Lourdes ; Putnis, Andrew | Elsevier Science B.V., Amsterdam. | 2010The mechanisms that determine the inhibition of calcite growth by magnesium have remained unclear and subject to controversy over decades. Although it has been long apparent that the inhibition mechanisms take place at the crystal-solution inter[...]texto impreso
Dahlquist, Juan A. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Casquet, César ; Fanning, C.M. ; Alasino, Pablo H. ; Baez, Miguel | Elsevier Science B.V., Amsterdam. | 2006New geochronological and geochemical data are reported for the San Blas Pluton (SBP), in the northwestern Sierra de Velasco, Sierras Pampeanas, which intrudes Ordovician granitoids developed during the Famatinian orogeny. A precise Carboniferous[...]
