2024-03-28T20:42:48Zhttps://gredos.usal.es/oai/requestoai:gredos.usal.es:10366/194212022-02-10T12:06:08Zcom_10366_4128com_10366_4055com_10366_3946com_10366_3823col_10366_4129
Crustal sources in lower palaeozoic rocks from NW Iberia: insights from laser ablation U-Pb ages of detrital zircons
Fernández-Suárez, Javier
Gutiérrez Alonso, Gabriel
Jenner, G. A.
Tubrett, M. N.
Rocas
Paleozoico
España
Laser
NW Iberia
Laser ablation methods
U-Pb
Zircon
Estudio de las rocas paleozoicas del Noroeste de España
Detrital zircons from greywackes belonging to an Ordovician volcanosedimentary-igneous complex in NW Spain were dated using the laser ablation-inductively coupled plasma-mass spectrometry technique. U-Pb results indicate the existence of three Precambrian crustal sources in NW Iberia. The age grouping datetd at c. 590-620 Ma. confirms the presence of a Cadomian-Avalonian basement in this zone. The second age group (c. 1.1-1.2 Ga) is the first evidence for a Grenvillean age crustal component in NW Iberia. The age grouping dated at c. 1.9-2.0 Ga corresponds to the age of the Icartian igneous basement exposed in other areas of the European Variscides.
2009-02-18
2009-10-07T11:41:51Z
2009-10-07T11:41:51Z
1999
info:eu-repo/semantics/article
info:eu-repo/semantics/article
Fernández Suárez, J., Gutiérrez Alonso, G.,Jenner, G. A.,Tubrett, M. N. (1999). Crustal sources in lower palaeozoic rocks from NW Iberia: insights from laser ablation U-Pb ages of detrital zircons. "Journal of the Geological Society",156, 1065-1068.
http://hdl.handle.net/10366/19421
http://hdl.handle.net/10366/19421
Inglés
eng
Attribution-NonCommercial-NoDerivs 3.0 Unported
https://creativecommons.org/licenses/by-nc-nd/3.0/
info:eu-repo/semantics/openAccess
application/pdf
Geological Society (Londres, Gran Bretaña)