basin-and-swell sedimentation A form of sedimentation in a region of differential subsidence, where thin, condensed, sedimentary sequences are deposited on slowly subsiding highs or ‘swells’, and thicker, usually muddier sediments accumulate in more rapidly subsiding basins between the swells.

basin-and-swell sedimentation A form of sedimentation in a region of differential subsidence, where thin, condensed, sedimentary sequences are deposited on slowly subsiding highs or ‘swells’ and thicker, usually muddier, sediments accumulate in more rapidly subsiding basins between the swells.