Some Aspects of the Geochemistry, Provenance and Paleoclimatology of the Torridonian of NW Scotland

Abstract: Geochemical data, mostly from mudstones, are used in an attempt to investigate some aspects of the palaeoclimatology and provenance of the Torridonian succession in NW Scotland. The basal part of the Stoer Group, which has been interpreted as glaciogenic is thought to have formed in a warm and setting. The presence of oscillation ripples and desiccation cracks in mudstones containing isolated clasts is thought to preclude their interpretation as ice-rafted debris. Some aspects of the major element geochemistry of the Stoer Group mudstones suggest deposition in an environment with little weathering, but chemical weathering is inhibited in both frigid and and settings and …