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Validez e interpretación de los datos geotermométricos de los esquistos cloríticos con circón en las peridotitas de Ronda (Cordilleras Béticas)Validity and interpretation of the geothermometric data of the zircon-bearing chlorite schists in the Ronda Peridotites (Betic Cordilleras)

Esteban, José Julián; Cuevas, Julia; Tubía, José María (2006)

This work reports the most precise geochemical compositions and geothermometric calculations of zirconbearing chlorite schists located at the south-western part of the Sierra Bermeja peridotite massif. The combination ...

Control estructural del Batolito de Tastil (Salta, Argentina) en el desarrollo de cabalgamientos andinosStructural control of the Tastil batholith (Salta, Argentina) on the development of Andean thrusts

Tubía, José María; Hongn, Fernando Daniel; Aranguren, A.; Vegas, Néstor; Mon, R. (2006)

This work deals with the structure of the Lower Cambrian batholith of Tastil (Salta, NW Argentina) and its influence on the development of younger Andean structures. Anisotropy of magnetic susceptibility data reveal a ...

Estructura del complejo alcalino de Rangel (Salta, Argentina)Structure of the Rangel alkaline complex (Salta, Argentina)

Vegas, Néstor; Hongn, Fernando Daniel; Tubía, José María; Menegatti, Nilda (2008)

This work deals with the structure and emplacement of the alkaline complex of the Sierra de Rangel, a Cretaceous stock intruding in Ordovician metamorphic rocks of the Puna region at Salta, northwest Argentina. Field ...

Distribución de la deformación en granitoides sincinemáticos intruidos en condiciones transpresivas (Sanabria, Zona Centro-Ibérica, Macizo Ibérico)Strain partition in synkinematic granitoids intruded in a transpressive setting (Sanabria, Central Iberian-Zone, Iberian Massif)

Vegas, Néstor; Tubía, José María; Esteban, José Julián; Cuevas, Julia (2007)

The Sanabria Lake plutons, located in the Central Iberian Zone of the Iberian Massif, intruded in a dextral strike-slip fault bridge under transpressive conditions. The deformed zone underwent a strain partitioning process, ...

Reseña preliminar sobre el hallazgo de diáspora asociada a la serpentinización de los macizos de peridotitas de RondaPreliminary report on the finding of diaspore related to the serpentinization of the Ronda peridotites

Esteban, José Julián; Cuevas, Julia; Tubía, José María; Vegas, Néstor; Yusta, Iñaki (2009)

We report the presence of large aggregates (diameter > 1 cm) of diaspore related to the serpentinization of the Sierra Alpujata massif of the Ronda peridotites (Betic Cordilleras, southern Spain). The diaspore is found ...

Jade nefrítico en las peridotitas de RondaNephrite jade in the Ronda peridotites

Tubía, José María; Esteban, José Julián; Cuevas, Julia (2009)

We report the presence of nephrite jade, a semiprecious gemstone, in the Ronda peridotites (Betic Cordilleras, southern Spain). These rocks are formed by submicroscopic to fine-grained aggregates of tremolite with felted ...

Pliegues magmáticos en el plutón trondhjemítico de La Fronda, Sierras Pampeanas de Córdoba, ArgentinaMagmatic folds in the La Fronda trondhjemite pluton, Sierras Pampeanas at Córdoba, Argentina

D’Eramo, Fernando J.; Vegas, Néstor; Pinotti, Lucio P.; Tubía, José María; Coniglio, Jorge E. (Sociedad Geológica de España, 2005)

From structural and magnetic fabric patterns, this work reports a complex folded structure in the La Fronda pluton, a small trondhjemite massif located in the Sierras de Córdoba which form the eastern part of the Sierras ...

Fábrica magnética de diques doleríticos del Plutón de Panticosa (Zona Axial, Pirineos)Magnetic fabric of the doleritic dykes in the Panticosa pluton (Pyrenean Axial Zone)

Santana, V.; Vegas, Néstor; Pinotti, Lucio P.; Tubía, José María (Sociedad Geológica de España, 2005)

This work deals with the magnetic fabrics of the doleritic dykes intruded in the Panticosa pluton. The dykes are grouped in two main families: one with N-S direction and another one E-W, the most common. The measured ...

Metamorfismo y geotermobarometría de la Unidad de Yunquera en Casarabonela (Complejo Alpujárride, Málaga)Metamorphism and geothermobarometry of the Yunquera Unit in Casarabonela (Alpujárride Complex, Málaga)

Esteban, José Julián; Cuevas, Julia; Tubía, José María; Gil Ibarguchi, José Ignacio (Sociedad Geológica de España, 2004)

The rocks of the Yunquera Unit (Alpujárride Complex) record two stages, at least, of recrystallization at different P-T conditions defined by the mineral associations: a) Grt + Pl + Ms + St + Ky + Qtz, and b) Grt + Pl + ...

Caracterización química de esfenas ígneas y aplicación del geotermómetro de Zr en esfena a procesos tardimagmáticosChemical characterization of igneous sphene and application of the Zr-in-sphene thermometer to tardimagmatic processes

Rodríguez, Javier; Vegas, Néstor; Esteban, José Julián; Tubía, José María (2009)

This preliminary work illustrates the chemical composition of sphene from Variscan tonalites with sphene-centered ocellar texture (Ribadelago pluton, NW Iberian Massif). The ocellar texture is linked with the percolation ...