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)Título(s) alternativo(s)
Setting, Petrology and Geochemistry of the Volcanoclastic Complex of Orea (Guadalajara, Iberian Chain)Fecha
1995Cita bibliográfica
Cadernos do Laboratorio Xeolóxico de Laxe, 1995, 20: 195-212 ISSN: 0213-4497
Resumen
[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