Sedimentology and structure of the Scotland Group, Barbados

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Abstract
The lower to middle Eocene Scotland Group is about 1700 m thick at outcrop and can be divided into: (A) The Lower Scotland Formation consisting of (1) the Walkers Member (500 m): graded turbidite sands and clays, arranged in sand-dominated and clay-dominated packets; (2) the Morgan Lewis Member (200 m): almost all clay, with two sand intervals; (B) the Upper Scotland Formation consisting of (3) the Murphys Member (about 350 m): a thickening and coarsening upward sequence including slumped beds; (4) the Chalky Mount Member (0–250 m): coarse and conglomeratic sands with large slide blocks and minor interbedded muds; (5) the Mount All Member (about 500 m): coarse and fine turbidite sands and clays, much disturbed and displaying no overall sequence. The group was deposited by mass-flow processes in a deep marine environment, probably in a deep-sea trench or a submarine fan.