Abstract
Coarsening upwards cycles in the upper Carboniferous Bideford Group of north Devon reflect the repeated progradation of riverdominated, elongate deltas. The cycles consist of progradational sequences (large-scale, prodelta to mouth bar coarsening upwards sequences, and major distributary channel sandstones), aggradational sequences (small-scale beach-spit coarsening upwards sequences and fining upwards crevasse channel sequences), and sporadically developed abandonment fades (thin, bioturbated siltstones and a coal horizon). Variations between cycles are governed principally by the location of bar fingers, and axial, lateral and (?) distal bar finger successions are distinguished.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
