Whitsun field meeting: Devonian of West Somerset and Carboniferous of North-East Devon

The lithological and faunal changes through the transition from non-marine Hangman Grits to marine Ilfracombe Beds of North Devon and West Somerset suggest the presence of a major depositional marine transgression. A fauna of thick-shelled lamellibranchs and gastropods occurs in beds lying stratigraphically between the flu-viatile Hangman deposits below, and the shallow-water marine Ilfracombe Beds above, and is considered to indicate an intermediate phase of intertidal depositional conditions. The transgression appears to have advanced across the region in a north-north-easterly direction during Lower-Middle Givetian times following coastal subsidence and possibly an associated rise of sea level.

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Whitsun field meeting: Devonian of West Somerset and Carboniferous of North-East Devon

Cited by 4 publications

References 7 publications

The stratigraphy and structure of the Devonian Rocks in the Brendon Hills, West Somerset

The stratigraphy and structure of the Devonian Rocks in the Brendon Hills, West Somerset

The stratigraphy and structure of the Devonian Rocks in the Quantock Hills, West Somerset

The Middle Devonian Marine Transgression in North Devon and West Somerset

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