Abstract
Internal-tide and internal-wave deposits are a new and important type of deep-water traction-current deposits. Based on an analysis of documented internal-tide and internal-wave deposits, five facies types can be recognized: ( i ) bidirectional cross-laminated sandstone fades, ( ii ) unidirectional cross-bedded and cross-laminated sandstone facies, ( Ⅲ ) rhythmic alternating sandstone facies and mudstone, (iv ) flaser, wavy and lenticular bedded foraminiferal limestone facies, (v ) sandy oolitic limestone facies with flaser, wavy and lenticular bedding and epsilon cross bedding, which formed in submarine channel, unchannelized continental slope and plateau environments respectively. Accoding to the available data and knowledge, three sedimentation models are built; some discriminating characteristics of internal-tide and internal-wave deposits, and the distinction between them and contourites and turbidites are summed up.
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