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uploads/strandline.jpg

strandline (水退前的)海岸水線。

strange

On the basis of the feature of paleostructure , paleogeography and lake level fluctuation in chang - 6 to chang - 8 oil - bearing layers , this text researchs paleogeographic feature and evolution . chang - 8 stages are the early days of lake basin outspread , chang - 7 stages are steadies stage of lake basin outspread , chang - 6 stages are shrinkage of lake basin , the lake level slowly droping , lake strandline moving eastward 根據古構造、古地理、湖平面升降等特點研究了長_ 6 ?長_ 8期巖相地理特點及其演化,長_ 8期是湖盆擴大的初期;長_ 7期為湖盆擴大階段中穩定期;長_ 6期為湖盆擴大階段中開始萎縮,湖平面繼續緩慢下降,湖岸線向東遷移。

Sandstone benches are directly related to steps in the strandline . 巖石的各個砂級和海濱線的位置有著直接的關系。