Contrasting styles of shelf sediment transport and deposition in a ramp margin setting related to relative sea-level change and basin floor topography, Turonian (Cretaceous) Western Interior of central Utah, USA

Divergent sole mark and bedform palaeocurrents from both members suggest slight eastward deflection of the turbulent flows off the proto-SRA. Further evidence for this topography is inferred from an absence of turbidites along the western side of the structure. The inferred influence of local basin floor structures on sedimentation of these units has important implications for structural models for this basin, for generalized sequence stratigraphic models applied to ramp-type foreland basin sequences and for elucidating the origin of anomalous marine mudstone-encased sandstone bodies.