Permian 40Ar/39Ar ages for post-Variscan minor intrusions in the Iberian Range and Spanish Central System

40Ar/39Ar dating of biotite from a calc-alkaline gabbro stock NW of Loscos in the Iberian Range yielded a slightly disturbed gas release spectrum. It has an early Permian, 288.5 ± 1.4 Ma total gas age, interpreted as the minimum emplacement age. The 40Ar/39Ar apparent age of the gabbro agrees with t...

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Veröffentlicht in:	Geologica acta 2008, Vol.6 (4), p.335-344
Hauptverfasser:	Perini, Giulia, Jan Timmerman, Martin
Format:	Artikel
Sprache:	eng
Schlagworte:	Argon dating Iberian Range Lamprophyre Permian Post Post-Variscan dykes Spanish Central System Variscan dykes
Online-Zugang:	Volltext
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