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Syndepositional tectonism in the Kvamshesten district (Old Red Sandstone), western Norway

Published online by Cambridge University Press:  01 May 2009

I. Bryhni  and
F. J. Skjerlie
I. Bryhni
Affiliation:
Mineralogisk-Geologisk MuseumSarsgt. 1Universitetet i OsloOsloNorge
F. J. Skjerlie
Affiliation:
Geologisk InstituttAvd. AUniversitetet i BergenBergenNorge
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Summary

Continental Middle Devonian sediments of the Kvamshesten district have recently been interpreted as a thrusted block. However, although basal contacts in the E of the district are mylonitized, contacts in the W can be interpreted as depositional unconformities. Coarse alluvial-fan breccias (Markavatn Formation) in the district's northern margins interdigitate with fluviatile sandstones (Heilefjell Formation) towards the basin's centre. Syndepositional tectonism is demonstrated by the geometry of the coarse marginal deposits.

Type
Articles
Information
Geological Magazine , Volume 112 , Issue 6 , November 1975 , pp. 593 - 600
Copyright
Copyright © Cambridge University Press 1975

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