煤田地质与勘探2017，Vol.45Issue(6)：7-13,7.DOI:10.3969/j.issn.1001-1986.2017.06.002
塔西南中-下侏罗统层序地层特征与聚煤规律
Sequence stratigraphy characteristics and coal accumulation law in Mid-Lower Jurassic in southwest Tarim
摘要
Abstract
In order to clarify coal accumulation law in Mid-lower Jurassic in southwest Tarim,through the procedures of comprehensive analysis of previous studies,using profiles,drilling,well logging,core materials,by facies changes directions,identifying sedimentary facies and establishing sequence framework,fan,fan delta,delta,lakes and swamps sedimentary facies were identified.By systematic analysis the types of sedimentary facie,sedimentary boundary characteristics and distribution,two sequence boundaries and four sequence boundaries were recognized.Combining sedimentary and evolution characteristics,stabilized settlement expansion stage was benefitial for coal accumulation,corresponding to the transgressive and high deposition system.Finally,according to the theory of sequence structure type of coal and the characteristics of coal seam thickness distribution,the coal accumulation law in Kizilayao depression,Yecheng-Hetian depression and Hetianbuya depression was identified.关键词
塔里木盆地西南缘/中-下侏罗统/层序地层/聚煤中心Key words
Tarim basin southwestern margin/sequence/Mid-Lower Jurassic/coal accumulation centers分类
天文与地球科学引用本文复制引用
杜世涛,田继军,李佳秀,来鹏,石司宇,廖正凯..塔西南中-下侏罗统层序地层特征与聚煤规律[J].煤田地质与勘探,2017,45(6):7-13,7.基金项目
新疆杰出青年科技人才培养项目(20147110020)Xinjiang Outstanding Youth Science and Technology Talented person training Program(20147110020) （20147110020）
