| 1. | The dark - gray traction current deposits belong to internal - tide deposits , it develops sandstones and siltsands , and charactered with lenticular , wave , flaser bedding , bimodal cross - bedding and ripple mark
深水牵引流沉积为内潮汐沉积类型，岩性为细砂岩、粉砂岩，以发育透镜状、波状、脉状层理、双向交错层理、波痕等沉积构造为特征。 |
