Timing of Alpine fault gouges

Timing of Alpine fault gouges

K–Ar ages from clay-rich fault gouges in the European Alps are consistent internally, with established field constraints and with fission track ages, demonstrating the applicability of this method for direct dating of brittle deformation. Illite grown by retrograde hydration of granitic and/or high-...

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Veröffentlicht in:Earth and planetary science letters 2004-07, Vol.223 (3), p.415-425
Hauptverfasser: Zwingmann, Horst, Mancktelow, Neil
Format: Artikel
Sprache:eng
Schlagworte:
brittle fault
clay gouge
European Alps
geochronology
K–Ar dating
neotectonics
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Zusammenfassung:K–Ar ages from clay-rich fault gouges in the European Alps are consistent internally, with established field constraints and with fission track ages, demonstrating the applicability of this method for direct dating of brittle deformation. Illite grown by retrograde hydration of granitic and/or high-grade metamorphic protoliths is the major K-bearing mineral in the fractions that have been separated (
ISSN:0012-821X
1385-013X
DOI:10.1016/j.epsl.2004.04.041