• 责任者：Peng Nan (School of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Kuang Hongwei
• 刊名：Earth Science Frontiers
• 出版年：2011
• 卷期：18(4)
• 关键词：沉积作用 ; sedimentation ; 岩相古地理 ; lithofacies paleogeography ; 祁连山 ; Qilian Mountains
• 页码：p.77-87
• 图表：6 illus., 35 refs.
• 分类号：0803
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

Researches on the sediments, paleocurrents and depositional environments of the Early Cretaceous in northern Qilian-Jiuxi areas show that an extensive basin (Northern Qinlian-Jiuquan Lake), covering areas from the mid-Qinlian Mountains in the south to the Beishan in the north and from the western Altyn Fault to Jiudong in the east, existed in the Early Cretaceous. Current study indicates that the Northern Qinlian-Jiuquan Lake was involved in a sedimentary and palaeogeographical evolutionary history in succession, i.e., from initial alluvial fan, and then fluvial, followed by lacustrine and fluvial environment finally.