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Arenas Martín, Ricardo ; Sánchez Martínez, Sonia ; Díez Fernández, Rubén ; Gerdes, Axel ; Abati, Jacobo ; Fernández Suárez, Javier ; Andonaegui Moreno, Pilar ; González Cuadra, Pablo ; López Carmona, Alicia ; Albert Roper, Richard ; Fuenlabrada Pérez, José Manuel ; Rubio Pascual, Francisco J. | Elsevier | 2016-10NW Iberia includes a rather complete section of a Variscan suture, where different terranes with continental or oceanic affinities appear with clear structural relationships. Three groups of terranes, namely Upper, Ophiolitic and Basal units and[...]texto impreso
Gutiérrez-Alonso, Gabriel ; Gutiérrez Marco, Juan Carlos ; Fernández Suárez, Javier ; Bernárdez Rodríguez, Enrique ; Corfu, F. ; López Carmona, Alicia | IOP Publishing | 2019Zircon and monazite ID-TIMS U-Pb dating of four Lower Ordovician altered ash-fall tuff beds (K-Bentonites) in NW Iberia provided coetaneous ages of 477.5±1, 477±1.3 Ma, 477.2±1.1 Ma and 477.3±1 Ma, with a pooled concordia age of 477.2±0.74 Ma. A[...]texto impreso
The Malpica–Tui Unit (Galicia, NW Spain) records eclogite- and blueschist-facies metamorphism during the onset of the Variscan orogeny in Europe. Petrological analysis involving pseudosections calculated using THERMOCALC shows that the Upper She[...]texto impreso
López Carmona, Alicia ; Solís Alulima, B.E. ; Gutiérrez-Alonso, Gabriel ; Álvarez Valero, A.M. ; Tishin, P. A. ; Gertner, I. F. | IOP PublishingContrasting metamorphism in adjacent terranes is distinctive of large-scale tectonic events that include both collisional and rifting scenarios. When one of those terranes is characterized by the presence of high-pressure rocks, it is more likel[...]texto impreso
Gutiérrez-Alonso, Gabriel ; López Carmona, Alicia ; García Acera, G. ; Martín Garro, J. ; Fernández Suárez, Javier ; Gärtner, Andreas ; Hofmann, Mandy | IOPscience | 2017The advent of a large amount of more precise U-Pb age data on Variscan granitoids from NW Iberia in recent years has provided a more focused picture of the magmatic history of the Western European Variscan belt (WEVB). Based on these data, three[...]texto impreso
Gutiérrez-Alonso, Gabriel ; Fernández Suárez, Javier ; López Carmona, Alicia ; Gärtner, Andreas | Geological Society of America | 2018-02-09In this study we report laser ablation–inductively coupled plasma–mass spectrometer U-Pb ages of granitoids from the so-called early granodiorites of the northwest Iberian Variscan belt. The U-Pb results attest to significant magmatic activity i[...]texto impreso
This study integrates SHRIMP Usingle bondPb zircon geochronology and whole-rock and Srsingle bondNd isotope geochemistry data from migmatites and granitic rocks of the Sierra Albarrana Domain. We provide new information on the magmatic and metam[...]texto impreso
López Carmona, Alicia ; Kusky, Timothy M. ; Santosh, M. ; Abati Gómez, Jacobo | Elsevier Science B.V., Amsterdam | 2011The southern Alaska convergent margin contains several small belts of sedimentary and volcanic rocks metamorphosed to blueschist facies, located along the Border Ranges fault on the contact between theWrangellia and Chugach terranes. These belts[...]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
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Martínez Catalán, José R. ; Arenas Martín, Ricardo ; Abati Gómez, Jacobo ; Sánchez Martínez, Sonia ; Díaz García, Florentino ; Fernández Suárez, Javier ; González Cuadra, Pablo ; Castiñeiras García, Pedro ; Gómez Barreiro, Juan ; Díez Montes, Alejandro ; González Clavijo, Emilio ; Rubio Pascual, Francisco J. ; Andonaegui Moreno, Pilar ; Jeffries, Teresa E. ; Alcock, James E. ; Díez Fernández, Rubén ; López Carmona, Alicia | Elsevier Masson, France | 2009Ophiolites of different Paleozoic ages occur in North-West (NW) Iberia in a rootless suture representing the remnants of the Rheic Ocean. Associated allochthonous terranes in the hanging- and foot-walls of the suture derive from the former margi[...]texto impreso
Fuenlabrada Pérez, José Manuel ; Arenas Martín, Ricardo ; Díez Fernández, Rubén ; Sánchez Martínez, Sonia ; Abati Gómez, Jacobo ; López Carmona, Alicia | Elsevier Science B.V., Amsterdam | 2012The basal units of the allochthonous complexes of NW Iberia are formed by thick metasedimentary rock sequences intruded by granitoids, ranging in composition from calc-alkaline (c. 493 Ma) to minor alkaline– peralkaline massifs (c. 475–470 Ma), [...]texto impreso
Gutiérrez Alonso, Gabriel ; López Carmona, Alicia ; Fernández Suárez, Javier ; Jablonski, Jerónimo ; Hofmann, Mandy ; Gärtner, Andreas | Sociedad Geológica de España | 2018Este trabajo se centra en el estudio de la edad de cristalización del granito deformado de Juzbado mediante geocronología U-Pb a través de ablación láser. Se dataron 7 granos de circón, obteniéndose edades comprendidas entre 340 y 2500 Ma. Los d[...]
