SEDIMENTARY STRATIGRAPHY AND MORPHOLOGY OF THE ANCIENT WRECK AREA IN HEZE, SHANDONG PROVINCE

The sedimentation stages in the ancient channel of Zhaowang River are obvious. During the early stage, the sedimentation is mainly medium-fine sand and silty sand, with shifting sedimentary rhythm. The sediments in the late stage are dominated by silty fine sand and silty sand. From the bottom of the sunken ship upward, two sediment sections can be recognized, namely, flood deposition and channel deposition, with grain sizes getting finer. Analysis for the profile of channel sedimentation shows horizontal swings. After the ship had collided to the point bar and sunken, the braided channels disappeared gradually, when the area near the wreck started to accept a stable channel deposition.