南盘江盆地中三叠统复理石的物源和沉积构造背景分析  

Provenance and Tectonic settings of the middle Triassic flysch in Nanpanjiang Basin

作　　者：杨超[1] 陈清华[1] 吕洪波[1] 张洪涛[2] 曲长胜[3] 

机构地区：[1]中国石油大学地球资源与信息学院,山东东营257061 [2]四川石油管理局测井公司,重庆400021 [3]中石化胜利油田地质科学研究院,山东东营257000

出　　处：《中国石油大学学报（自然科学版）》2008年第6期22-27,共6页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(49972037)

摘　　要：利用数据统计分析方法,对岩石薄片数据、古水流数据、岩石化学数据等进行了统计分析,在此基础上研究了南盘江盆地中三叠统物源和沉积构造背景。结果表明:中三叠统南盘江盆地古水流方向为北西西方向;沉积物主要来源于盆地一侧的再旋回造山带;再旋回造山带应该在盆地的东南方向;沉积构造背景以大陆岛弧为主,兼有活动陆缘的性质。In order to clarify the provenance and tectonic setting of Nanpanjiang Basin in the middle Triassic, thin section data, palaeocurrent data and the geochemical data were counted and analyzed by using the statistic and analytic method. The results show that the paleocurrent direction in the middle Triassic is NWW in Nanpanjiang Basin, and the sediment comes from the recycled orogen belt which lies in the southeast part of the basin. The tectonic setting is the combination of island arc related to a continent and an active continental margin.

关 键 词：南盘江盆地 古流向 中三叠统 物源 构造背景 

分 类 号：TE121[石油与天然气工程—油气勘探]