藏北羌塘盆地胜利河-长蛇山油页岩带的发现及其意义  

Discovery of the Shenglihe-Changsheshan oil shale belt in the Qiangtang basin,northern Tibet, China and its significance

作　　者：王剑[1] 付修根[1] 李忠雄[1] 吴滔 何江林[1,3] 

机构地区：[1]中国地质调查局成都地质矿产研究所,四川成都610082 [2]贵州省地质调查院,贵州贵阳550004 [3]中国地质科学院研究生部,北京100037

出　　处：《地质通报》2009年第6期691-695,共5页Geological Bulletin of China

基　　金：国家油气专项《青藏高原油气资源战略选区调查与评价》(编号:XQ2004-06);国家自然科学基金(批准号:40702020)资助

摘　　要：最近在北羌塘长蛇山地区新发现了晚侏罗世—早白垩世油页岩及膏盐层,该油页岩与近年来笔者在胜利河地区发现的多处油页岩连成一片,构成了目前中国发现的最大规模的海相油页岩带。详细的野外地质调查与研究表明：该油页岩有机碳含量介于4.31%-16.89%之间,焦油含量为3.5%～16.3%,油页岩有机质大多处于成熟阶段。胜利河-长蛇山油页岩带及与其密切共生的膏盐层的发现,丰富了羌塘盆地烃源岩的类型,为羌塘盆地油气地质条件评价提供了新的依据。Recently, a new oil shale and gypsum salt belt was discovered in the Changshe Mountain area, northern Tibet, China. This belt, combined with previous oil shale belt found in the Shengli River area, represents a large marine oil shale resource in China. Detailed geologic survey and study indicates that oil shales from these areas are characterized by mature organic matters with organic car- bon content ranging from 4.31% to 16.89% and moderate tar content ranging from 3.5% to 16.3%. The discovery of oil shale and gypsum salt belt adds a new hydrocarbon type in the Qiangtang basin as well as proposes new evidences for assessing petroleum geo- logical conditions in this basin.

关 键 词：海相油页岩 地球化学 胜利河地区 羌塘盆地 

分 类 号：P618.12[天文地球—矿床学]