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Díez Fernández, Rubén ; Castiñeiras García, Pedro ; Gómez Barreiro, Juan | Elsevier Science B. V., Amsterdam | 2012The basal units of the allochthonous complexes of NW Iberia are used to examine the Lower Paleozoic geodynamic evolution of the northern Gondwana margin. These units represent the most external continental margin and the sequence of major magmat[...]texto impreso
Alasino, Pablo H. ; Dahlquist, Juan A. ; Pankhurst, R.J. ; Galindo Francisco, Mª del Carmen ; Casquet, César ; Rapela, Carlos W. ; Larrovere, M.A. ; Fanning, C.M. | Elsevier Science B. V., Amsterdam | 2012A recently discovered granitic intrusion at Cerro La Gloria in western Sierra de Famatina (NW Argentina) is representative of sub- to mid-alkaline Carboniferous magmatism in the region. The main rock type consists of microcline, quartz and plagi[...]texto impreso
Casquet, César ; Rapela, Carlos W. ; Pankhurst, R.J. ; Baldo, Edgardo G. ; Galindo Francisco, Mª del Carmen ; Fanning, C.M. ; Dahlquist, Juan A. | Elsevier Science B. V., Amsterdam | 2012Metasedimentary high-pressure upper amphibolite facies gneisses (1.2±0.1 GPa and 780±45 °C) at Las Chacras, Sierra de Valle Fértil, are tectonically juxtaposed to thewesternmost parts (outboard) of the Famatinian (Early Ordovician) magmatic arc,[...]texto impreso
Navidad Fernández de la Cruz, Marina ; Castiñeiras García, Pedro ; Casas Tuset, Josep María ; Liesa Torre Marín, Montserrat ; Fernández Suárez, Javier ; Barnolas Cortina, A. ; Carreras, Jordi ; Gil Peña, Inmaculada | Elsevier Science B. V., Amsterdam | 2010This paper presents new geochronological, geochemical and isotopic data for Late Ordovician magmatism (455±2 Ma) from the Variscan massifs in the northeastern Iberian Peninsula. This magmatism is mainly composed of aluminous and metaluminous plu[...]texto impreso
Dahlquist, Juan A. ; Pankhurst, R.J. ; Gaschnig, Richard M. ; Pankhurst, R.J. ; Rapela, Carlos W. ; Casquet, César ; Alasino, Pablo H. ; Galindo Francisco, Mª del Carmen ; Baldo, Edgardo G. | Elsevier Science B. V., Amsterdam | 2013Wereport the first study integrating in situ U–Pb and Hf isotope data frommagmatic zircon andwhole-rock Sm–Nd isotope data for granitic rocks of the Sierras Pampeanas, Argentina, in order to evaluate the Palaeozoic growth of the proto-Andean mar[...]texto impreso
Moghadam, H. Shafaii ; Ghorbani, G. ; Khedr, M. Zaki ; Fazlnia, N. ; Chiaradia, M. ; Eyuboglu, Y. ; Santosh, M. ; Galindo Francisco, Mª del Carmen ; López Martínez, Nieves ; Gourgaud, A. ; Arai, S. | Elsevier Science B. V., Amsterdam | 2014Post-collisional volcanism in northwestern Iran is represented by the Saray high-K rocks including leucite-bearing under-saturated and leucite-free silica saturated rocks. We report Ar–Ar age data which constrain the age as ca. 11Ma (lateMiocene[...]texto impreso
Casas Tuset, Josep María ; Castiñeiras García, Pedro ; Navidad Fernández de la Cruz, Marina ; Liesa Torre Marín, Montserrat ; Carreras, Jordi | Elsevier Science B. V., Amsterdam | 2010New geochronological data from the Canigó massif (Eastern Pyrenees) using U–Pb SIMS on zircon provide evidence of the existence of a Late Ordovician (456–446 Ma) plutonic event that emplaced granitic and dioritic bodies into a Late Neoproterozoi[...]texto impreso
A first conceptual palaeoceanographic model for the Early Jurassic Panthalassa and Tethys Oceans is outlined in the present paper. The new palaeoceanographic model uses fundamental physic–oceanographic principles known from the modern world and [...]texto impreso
Díaz García, Florentino ; Sánchez Martínez, Sonia ; Castiñeiras García, Pedro ; Fuenlabrada Pérez, José Manuel ; Arenas Martín, Ricardo | Elsevier Science B. V., Amsterdam | 2009The arc-derived upper units of the Órdenes Complex, NW Iberia, are emplaced above the Variscan suture and contain a low-grade metasedimentary uppermost section, with a maximum depositional age of 510–530 Ma, intruded by a number of mafic dykes. [...]texto impreso
Fuenlabrada Pérez, José Manuel ; Arenas Martín, Ricardo ; Sánchez Martínez, Sonia ; Díaz García, Florentino ; Castiñeiras García, Pedro | Elsevier Science B. V., Amsterdam | 2010The arc-derived upper terrane in the NW Iberia Variscan belt contains a 3000 m thick turbiditic formation at its structural top. Most of the sandstones are feldspathic greywackes with a framework of quartz and weakly altered plagioclase. Rock fr[...]texto impreso
López Carmona, Alicia ; Abati Gómez, Jacobo ; Reche i Estrada, Juan | Elsevier Science B. V., Amsterdam | 2010Two P–T pseudosections computed with Thermocalc and Perplex software for high-pressure pelitic Ceán Schists from the NWIberian Massif show that the paragenesis chloritoid+glaucophane, preserved as relict micro-inclusions in garnet porphyroblasts[...]texto impreso
Pastor Galán, Daniel ; Gutiérrez-Alonso, Gabriel ; Brendan Murphy, J. ; Fernández Suárez, Javier ; Hofmann, Mandy ; Linnemann, Ulf | Elsevier Science B. V., Amsterdam | 2013The Cantabrian Zone of NW Iberia preserves a voluminous, almost continuous, sedimentary sequence that ranges from Neoproterozoic to Early Permian in age. Its tectonic setting is controversial and recent hypotheses include (i) passive margin depo[...]texto impreso
Casquet, César ; Pankhurst, R.J. ; Rapela, Carlos W. ; Galindo Francisco, Mª del Carmen ; Fanning, C.M. ; Chiaradia, Massimo ; Baldo, Edgardo G. ; González Casado, José Manuel ; Dahlquist, Juan A. | Elsevier Science B. V., Amsterdam | 2008The rocks of Sierra de Maz and Sierra del Espinal (Western Sierras Pampeanas) represent pre-Famatinian (Ordovician) basement. Isotope compositions (Nd and Pb) of metasedimentary rocks and SHRIMP U–Pb dating of detrital zircons, combined with oth[...]texto impreso
Díez Fernández, Rubén ; Martínez Catalán, José Ramón ; Arenas Martín, Ricardo ; Abati Gómez, Jacobo | Elsevier Science B. V., Amsterdam | 2012Excellent exposures of high-pressure rocks developed in a Variscan continental subduction system outcrop in NW Iberia. The kinematic criteria provided by the high-pressure metamorphic fabrics can be used to infer tectonic flow within the deep se[...]texto impreso
Rapela, Carlos W. ; Fanning, C.M. ; Casquet, César ; Pankhurst, R.J. ; Spalletti, Luis ; Poiré, Daniel ; Baldo, Edgardo G. | Elsevier Science B. V., Amsterdam | 2011The Neoproterozoic to Early Cambrian amalgamation of SW Gondwana through the Brasiliano/Pan-African orogeny is reviewed with emphasis on the role of the Río de la Plata craton of South America in the light of new evidence from a borehole at the [...]
