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| A PRELIMINARY STUDY ON SUBMARINE VALLEY SYSTEM DALINGHE-LIAOHE |
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| The Submarine Valley system Dalinghe-Liaohe stretching more 100 kilometers along the Tanlu fracture zone is located in the east part of Gulf Liaodong. The system consists of two valleys extending toward south-east-south and in parallel with western coast of peninsula Liaodong. A sandy longitudinal harrier appears between two valleys. The valleys serve both as a channel for river run-off and tidal current and as a boundary dividing different morphologic and sedimentary types on each side. The valleys are connected with the stream outlets of rivers Dalinghe and Liaohe respectively. The terminals of valleys are merged in the same depression of more than -30 meter depth in the central part of Gulf Liaodong. There are some sedimentary accumulations as estuary deposits in the terminal of system and the mouth of its branch. The bottom of valleys has been flattened due to subsequent filling, and relative contrast is 2-5 meters only. |
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