Structures in the stratified late-glacial clays of Windermere, England

Types of disturbed layering observed in cores of late glacial sediments from the north basin of Windermere reflect the effects of varying degrees of post-depositional movement down the basin slopes and range from minor overfolding, affecting only single layers and resulting from flowage of the plastic clay, to oversteepening, overturning, or complete disruption of layering by slumping which affected several feet of sediment. Lamination and grading exhibited by the light-colored silt and fine sand layers which alternate with layers of dark clay may be attributable to deposition from clouds of suspended sediment whose direction of movement was controlled by the configuration of the lake floor.

This record provided courtesy of AGI/GeoRef.