内蒙古锡林浩特-阿鲁科尔沁地区林西组岩相古地理特征  

Lithofacies-paleogeographic features of Upper Permian Linxi Formation in Xilinhaote-Alukerqin area,Inner Mongolia,China

作　　者：邱余波[1,2] 伊海生[3] 蔡占虎 刘俊平[2] 张虎军[2] 王强强[2] 梁金昌[4] 韦栋[4] 

机构地区：[1]成都理工大学核技术与自动化工程学院,成都610059 [2]核工业二一六大队,乌鲁木齐830011 [3]成都理工大学沉积地质研究院,成都610059 [4]吐哈油田公司,新疆鄯善838202

出　　处：《成都理工大学学报（自然科学版）》2014年第2期192-202,共11页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：中国地质调查局项目(1212010782004);国家自然科学基金资助项目(40972084)

摘　　要：研究内蒙古锡林浩特-阿鲁科尔沁地区上二叠统林西组岩相古地理特征,为该区油气勘探提供理论依据。以单因素分析多因素综合的作图法,根据不同位置林西组剖面的岩性、砂泥比等因素,编制了林西组的岩相古地理图。研究表明,林西组可识别出碳酸盐台地相、三角洲相、浅海陆棚相和深水盆地相等4种类型的沉积相;林西组的岩相古地理格局规律明显,显示为南北浅中间深、东西两侧为碳酸盐台地的分布特点。林西组生烃凹陷位于锡林浩特东南至林西以北一直到巴林右旗以东一带的深水盆地、塔宾庙一带的前三角洲以及林西、官地一带的深水外陆棚沉积。This paper studies the lithofacies-palaeogeographical characteristics of the Upper Permian I.inxi Formation in the Xilinhaote-Alukerqin area of Inner Mongolia. This will provide important theory evidences for the oil/gas exploration of the future in study area. Using the single factor analysis and multifactor comprehensive mapping method and according to the lithologic character and the sand shale ratio at different locations in study area, the authors draw the lithofacies-paleographic map of the Upper Permian Linxi Formation in the Xilinhaote-Alukerqin area. Four kinds of facies can be recognized in study area. These include the carbonate platform, delta, shallow-marine shelf and deepwater basin. The palaeogeographic framework of the Upper Permian Linxi Formation is clear, showing that the north and south are shallow, the middle part is deep, and the east and west parts are carbonate platforms. The hydrocarbon-generating depression of Linxi Formation is located in the deep-water basin from the southeast of Xilinhaote to the north of Linxi and straight to the deep-water basin to the east of Balinyouqi and the prodelta in Tabinmiao area and the deep-water outer continental shelf in the Guandi area.

关 键 词：内蒙古东北部 上二叠统 林西组 岩相古地理 生烃凹陷 

分 类 号：TE121.3[石油与天然气工程—油气勘探]