Late Pleistocene forced-regressive deposits on the Sunda Shelf (Southeast Asia)

摘要: Regressive siliciclastic deposits from the central Sunda Shelf (Southeast Asia) were investigated by seismic surveying and sediment coring. High-resolution stratigraphy is favoured low shelf gradient a strong focused supply during periods of lower sea level. Three types regressive formed over past fifty thousand years can be distinguished: (1) thick lens-shaped clinoform 'bodies' up to 30 km wide which fill gentle depressions; (2) thin horizontally bedded between 'bodies'; (3) progradation wedge on outer upper slope. The cores reached part contain regressive-transgressive succession terrestrial, tidal shallow-marine facies. are interpreted as detached each other, probably reflecting interplay morphological minor sea-level fluctuations Marine Isotope Stage 3, resulted in reduction accommodation space local depositional stacking. Late Pleistocene sedimentation was partly controlled differential subsidence margin or wave wind-induced current action. (C) 2003 Elsevier Science B.V. All rights reserved.