Emplazamiento, Petrología y Geoquímica del Complejo Volcano-Clástico de Orea (Guadalajara, Cadena Ibérica Occidental)
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Emplazamiento, Petrología y Geoquímica del Complejo Volcano-Clástico de Orea (Guadalajara, Cadena Ibérica Occidental)Alternative Title(s)
Setting, Petrology and Geochemistry of the Volcanoclastic Complex of Orea (Guadalajara, Iberian Chain)Date
1995Citation
Cadernos do Laboratorio Xeolóxico de Laxe, 1995, 20: 195-212 ISSN: 0213-4497
Abstract
[Abstract] The volcanoclastic outcrop ofOrea (south margin of the Iberian Chain) reflects a pluriepisodic igneous activity, expressed in agglomerates and tuffs ofdacitic composition (with a calc-alkaline affinity) and Autunian-Thuringian age. The tuffs are the results' of a hydromagmatic activity, developed under a thin sheet of water (in a paludal environment). The structure of the magmatic outcrop
results of the late-Hercynian extensional tectonics, equivalent to that observed
in many other outcrops ofthe southeast border ofthe Iberian Chain. The setting
characters and composition of the involved magmatic rock-types, suggest the
presence of only one volcanic focus, as in other coetaneous half-grabens of this
sector of the Iberian Chain.
ISSN
0213-4497