RT Journal Article
T1 Crustal sources in Lower Palaeozoic rocks from NW Iberia:insights from laser ablation U–Pb ages of detrital zircons
A1 Fernández Suárez, Javier
A1 Gutiérrez Alonso, Gabriel
A1 Jenner, G.A.
A1 Tubrett, M.N.
AB 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 Pre-cambrian crustal sources in NW Iberia. The age grouping dated 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.
PB Geological Society of London.
SN 0016-7649
YR 1999
FD 1999
LK https://hdl.handle.net/20.500.14352/60453
UL https://hdl.handle.net/20.500.14352/60453
LA eng
DS Docta Complutense
RD 28 abr 2025