Dinantian depositional environments along the northern margin of the Solway Basin, UK

A sedimentological study has been conducted on the Dinantian strata of the tectonically separated Rerrick and Kirkbean Outliers on the northern margin of the Solway Basin The Rerrick succession, comprising a sequence of largely non-marine alluvial fan, fluvial and coastal plain clastic rocks, represents a tectonically influenced lateral dispersal system sourced from the northern margin of the Solway Basin. In contrast, the Kirkbean succession is considered to represent the deposits of a tectonically stable shallow-marine shelf subject to both limestone and clastic deposition. Periodically, axial fluvial systems draining westward established delta front conditions on the shelf. The depositional model presented here suggests both lateral and axial dispersal systems were active within the Solway Basin during the Dinantian.