Abstract
The Lower Devonian Meadfoot Group on the east coast of South Devon represents a typical shallow-water facies, comprising a variable sequence of mudstones, siltstones and sandstones or sandy siltstones. Many features of the deposits indicate the influence of strong water movements: cross-lamination, ripple-drift lamination, erosion channels and other washout structures. Current directions have been measured for all the sedimentary structures. Most of the clastic material was carried by lateral transport in this part of the Variscan geosyncline in directions both from W to E and E to W; a polarity of flow which may be explained as due to tidal influence. The direction of slumping indicates a sea floor sloping towards the south or south-west. An interesting feature is the presence of ball-and-pillow structures which is explained as essentially due to a sagging process. Many trails of organisms in the form of burrows occur in pelitic or silty deposits.
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