• 责任者：Zhang Xin (Research Institute ; CNOOC ; Beijing 100027 ; China) ; Zhang Jinliang
• 刊名：Sedimentary Geology and Tethyan Geology
• 出版年：2011
• 卷期：31(4)
• 关键词：冲积扇 ; alluvial fans ; 沉积体系 ; depositional system ; 惠民凹陷 ; Huimin Sag
• 页码：p.20-27
• 图表：3 illus., 15 refs.
• 分类号：0803
• issnNo：ISSN1009-3850
• isbnNo：CN51-1593/P

Two types of depositional systems are identified for the lower submember of the fourth member of the Shahejie Formation in the Huimin Depression, Shandong Province, including the debris flow fan and braided stream fan. The debris flow fan deposits occur near the fault scarp of the Qiguang fault, and consist of the proximal fan, mid-fan and terminal fan subfacies. In comparison with the braided stream fan deposits, the debris flow fan deposits are characterized by the enrichment of conglomerate, smaller scales of fans, and sharp facies changes. The controlling factors for the formation of this type of depositional systems contain tectonism, palaeogeomorphology and palaeoclimates, especially active faulting.