• 责任者：Lv Qiqi (Key Laboratory of Exploration Technologies for Oil and Gas Resources ; Ministry of Education ; Yangtze University ; Jingzhou 434023 ; China) ; Luo Shunshe
• 刊名：Geology in China
• 出版年：2012
• 卷期：39(1)
• 关键词：坡折带 ; slope-break belts ; 岩相古地理 ; lithofacies paleogeography ; 泌阳凹陷 ; Biyang Sag
• 页码：p.77-85
• 图表：9 illus., 2 tables, 13 refs.
• 分类号：0803
• 出版序号：20130187
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

///Based on the multidisciplinary analysis of drilling core data, petrological characteristics and facies marks, this paper divides the Hetaoyuan Formation into four sedimentary systems: fan-delta deposits, braid river delta deposits, meandering river delta deposits and lacustrine deposits. The authors systematically drew lithofacies-paleogeographical maps from 3rd Member to 1st Member of the Hetaoyuan Formation. The paleogeographic distribution characteristics are as follows: fan delta is developed in the south, braid river delta occurs in the northeast, meandering river delta exists in the northwest and lacustrine sediments are developed at the center.  The area of the lake expanded gradually and the braid river delta became bigger from 3rd Member to 2nd Member and began to decrease in area in 1st Member of the Hetaoyuan Formation.