The merrions tuff — its Genesis

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Abstract

The Early Devonian Merrions Tuff is a volcanogenic pulse up to 990 m thick, interrupting the more normal deposition of greywacke-slate sequences of the Hill End Trough. It is a distinctive, competent structural and stratigraphic datum for the Trough sequence (Fig. 1). Unfolding suggests that it may have had 11/2 times to twice its present areal extent of approximately 1, 850 km2 with the major shortening being in an east-west direction.

Original languageEnglish
Number of pages1
JournalExploration Geophysics
Volume7
Issue number1
DOIs
Publication statusPublished - 1 Jan 1976
Externally publishedYes

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