• 责任者：Zhang Lijuan (Exploration and Development Research Institute ; Tarim Oilfield Company ; Korla 841000 ; China) ; Zhong Dakang
• 刊名：Journal of Stratigraphy
• 出版年：2009
• 卷期：33(3)
• 关键词：侏罗纪 ; Jurassic ; 沉积相 ; sedimentary facies ; 新疆 ; Xinjiang
• 页码：p.241-248
• 图表：11 illus., 15 refs.
• 分类号：0803
• issnNo：ISSN0253-4959
• isbnNo：CN32-1187/P

In the North Tarim area, the Jurassic Yangxia Formation is characterized by a fining-upward fluvial sequence. The Yangxia Formation is most complete in Well PH-1 drilled in the eastern North Tarim area, but it show top truncation and base on lap toward the Lunnan uplift. Sediment provenance mainly came from northern Donghetang, western Yingmaili and Yaonan areas. Therefore, western Yingmaili, northern Donghetang, southern Well YN-1 and YN-2 are represented by small-scale alluvial fans. Braided river sedimentary systems are extended from the west to the east. It is reasonable to predict that lowstand deltas and lacustrine facies would occur downstream in the Caohu area and easternward. Sand-bodies in the Jurassic Yangxia Formation thin out northward to the Luntai uplift, and southward to the Central Uplift. They are favorable lithologic and stratigraphic traps.