古地理学报Issue(3)：359-370,12.DOI:10.7605/gdlxb.2015.03.030
内蒙古林西地区上二叠统林西组沉积环境与演变
Sedimentary environment and evolution of the Upper Permian Linxi Formation in Linxi area,Inner Mongolia
摘要
Abstract
Sedimentary environment of the Upper Permian Linxi Formation in eastern Inner Mongolia has been in dispute for a long time.Herein,based on previous research data,the environment is discussed in this paper after detailed field and indoor study on palaeontology,sedimentary structure,lithofacies, geochemistry etc.Evidences from marine fossils (calcareous algae,bryozoans,and sponges),B /Ga val-ue,carbon and oxygen isotopes,sedimentary structure,and other aspects show that the Linxi Formation is mainly of marine facies along with partial transitional facies.It is principally divided into delta front,lit-toral,shallow sea and semi-deep sea.Reefs mainly include blue green algae bonding reefs and algal bond-ing framework reefs,suggesting a littoral and shallow sea environment.The depositional environment of Linxi Formation developed from littoral,semi-deep sea,delta front,shallow sea to littoral,while the e-volution of sedimentary basin was divided into five stages,including uplift,rift,rapid,filling,steady subsidence and stable filling stages.关键词
内蒙古/上二叠统/林西组/沉积环境Key words
Inner Mongolia/Late Permian/Linxi Formation/sedimentary environment分类
天文与地球科学引用本文复制引用
翟大兴,张永生,田树刚,吴非蒙,邢恩袁,王猛,施立志,王卓卓..内蒙古林西地区上二叠统林西组沉积环境与演变[J].古地理学报,2015,(3):359-370,12.基金项目
国家自然科学面上基金项目（编号41472027）和中国地质调查局项目“乌拉特-赤峰盆地群页岩气资源综合调查”（编号1212011120972）联合资助 （）
