U-Pb SHRIMP - Resultats de la cerca - Dipòsit Digital de Documents de la UAB

Cerca col·leccions:

Ordena'ls per:	Mostrar els resultats:	Format de visualizació:

Resultats globals: 5 registres trobats en 0.02 segons.
Articles, 5 registres trobats

Articles	5 registres trobats

25 p, 2.6 MB

The spatial and compositional evolution of the Late Jurassic Ghorveh-Dehgolan plutons of the Zagros Orogen, Iran : SHRIMP zircon U-Pb and Sr and Nd isotope evidence / Yajam, S. (Kharazmi University (Teheran, Iran). Department of Geology) ; Montero, P. (Universidad de Granada. Departamento de Mineralogía y Petrología) ; Scarrow, J. H. (Universidad de Granada. Departamento de Mineralogía y Petrología) ; Ghalamghash, J. (Geological Survey of Iran) ; Razavi, S. M. H. (Kharazmi University (Teheran, Iran). Department of Geology) ; Bea, Fernando (Universidad de Granada. Departamento de Mineralogía y Petrología)
The Ghorveh-Dehgolan plutons of the northern Sanandaj-Sirjan Zone, Zagros Orogen, comprise seven composite intrusive bodies that were generated during northeastward subduction of Neotethys beneath the Iranian sector of the Eurasian plate. [...]
2015 - DOI (Digital Object Identifier)

10.1344/GeologicaActa2015.13.1.2
Geologica acta, Vol. 13 Núm. 1 (March 2015) , p. 25-43

Registre complet -

10 p, 1.9 MB

U-Pb zircon SHRIMP evidence for Cambrian volcanism in the Schistose Domain within the Galicia-Trás-os-Montes Zone (Variscan Orogen, NW Iberian Peninsula) / Farias Arquer, Pedro (Universidad de Oviedo. Departamento de Geología) ; Ordoñez-Casado, B. (Universidad de Oviedo. Departamento de Geología) ; Marcos, A. (Universidad de Oviedo. Departamento de Geología) ; Rubio-Ordoñez, A. (Universidad de Oviedo. Departamento de Geología) ; Fanning, C. M. (Australian National University. Research School of Earth Sciences)
SHRIMP U-Pb zircon analyses have shown the complexity of dating volcanic rocks due to the presence of inner cores within zircon crystals. Using the cathodoluminescence studies assisting ion microprobe analyses allow as to conclude that: the two low-grade metavolcanic samples from the Schistose Domain of the Galicia-Trás-os-Montes Zone in the northeast limb of the Verín-Bragança synform (NW Spain and NE Portugal) yield ages of 488. [...]
2014 - DOI (Digital Object Identifier)

10.1344/GeologicaActa2014.12.3.3
Geologica acta, Vol. 12 Núm. 3 (September 2014) , p. 209-218

Registre complet -

14 p, 6.0 MB

Linkages between the southern Patagonia Pre-Permian basements : new insights from detrital zircons U-Pb SHRIMP ages from the Cerro Negro District / Permuy Vidal, C. (Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo) ; Moreira, P. (Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo) ; Guido, D. M. (Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo) ; Fanning, C. M. (The Australian National University. Research School of Earth Sciences)
The Patagonian basement rocks are dominated by Precambrian to Early Paleozoic metamorphic rocks intruded by Paleozoic granitoids. Recently discovered basement rocks in the Cerro Negro District are characterized mainly by quartz-muscovite-chlorite schists; the metamorphic grade reaches greenschist facies (biotite-garnet grade) with a regional S1 schistosity subparallel to the original sedimentary structure S0 and a secondary non-penetrative S2 foliation. [...]
2014 - DOI (Digital Object Identifier)

10.1344/105.000002082
Geologica acta, Vol. 12, Núm. 2 (June 2014) , p. 137-150

Registre complet -

15 p, 1.2 MB

New SHRIMP U-Pb data from the Famatina Complex : constraining Early-Mid Ordovician Famatinian magmatism in the Sierras Pampeanas, Argentina / Dahlquist, Juan Andrés (Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)) ; Pankhurst, Robert John (British Geological Survey) ; Washington Rapela, Carlos (CIG-CONICET-UNLP) ; Galindo, Carmen (Universidad Complutense de Madrid. Departamento de Petrología y Geoquímica) ; Alasino, Pablo (CRILAR-CONICET) ; Fanning, Mark (Research School of Earth Sciences) ; Saavedra, Julio (Instituto de Recursos Naturales y Agrobiología de Salamanca) ; Baldo, Edgardo G. A (Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina))
New SHRIMP U-Pb zircon ages are reported for igneous and sedimentary rocks of the Famatina Complex, constraining the age of the magmatism and the ensialic basins. Together with whole-rock and isotope geochemistry for the igneous rocks from the complex, these ages indicate that the voluminous parental magmas of metaluminous composition were derived by partial melting of an older lithosphere without significant asthenospheric contribution. [...]
2008 - DOI (Digital Object Identifier)

10.1344/105.000000260
Geologica acta, Vol. 6, Núm. 4 (Desembre 2008) , p. 319-333

Registre complet -

9 p, 1.5 MB

U-Pb zircon age of Ordovician magmatism in the Albera Massif (Eastern Pyrenees) / Liesa Torre-Marín, Montserrat (Universitat de Barcelona. Facultat de Geologia) ; Carreras, J. (Universitat Autònoma de Barcelona. Departament de Geologia) ; Castiñeiras, P. (Universidad Complutense de Madrid. Departamento de Petrología y Geoquímica) ; Casas Tuset, Josep Maria (Universitat de Barcelona. Departament de Geodinàmica i Geofísica) ; Navidad, M. (Universidad Complutense de Madrid. Departamento de Petrología y Geoquímica) ; Vilà, M. (Institut Geològic de Catalunya)
New geochronological data from the Albera Massif confirm the presence of an Early - Mid Ordovician igneous event (472 - 465Ma) recorded in the pre-Variscan rocks of the Pyrenees. This event resulted in the emplacement of a large granitic body in the lower part of the pre-Upper Ordovician metasedimentary succession and in the intrusion of a series of metric sized dykes in the middle and upper parts of it. [...]
2011 - DOI (Digital Object Identifier)

10.1344/105.000001651
Geologica acta, Vol. 9, Núm. 1 (Març 2011) , p. 93-101

Registre complet -

Us interessa rebre alertes sobre nous resultats d'aquesta cerca?
Definiu una alerta personal via correu electrònic o subscribiu-vos al canal RSS.