Hemiturbidite: a new type of deep-water sediment

Abstract

Cores recovered from the top kilometer of section on the distal Bengal Fan are dominated by fine-grained turbidites interbedded with thin pelagites and a distinctive sediment type showing characteristics intermediate between mud turbidites and pelagites. The particular properties of this facies include (a) thick bipartite beds comprising a thin basal zone of turbidite and overlain by a thick bioturbated mud; (b) a bioturbated mud that shows burrowing continuous with sedimentation; and (c) slight grading of color, grain size, and geotechnical properties that continues even through the bioturbated part of the depositional unit. -from Authors