Deposition, Diagenesis and Structures of the Cheese Bay Shrimp Bed, Lower Carboniferous, East Lothian

Abstract

The laminated dolomites and mudstones of this Lower Carboniferous succession near Edinburgh are interpreted as the deposits of a thermally stratified fresh-water lake or brackish lagoon in which clastic/organic laminites accumulated. Drainage in the area was probably disrupted by contemporary volcanicity, and seismic shocks to the sediment resulted in mobilization and intrusion of tuffaceous material and produced a variety of pull-apart, fold, fault and sediment injection structures. Intense diagenetic dolomitization has affected the strata, replacing almost all detrital material and altering depositional textures.-R.A.H