Influence of Pre-Jurassic Anti EW Structures Acting on Coal Preservation of Jurassic Coal-Bearing Strata in Yili Basin
详细信息
- 责任者：Li Shaohu (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Zhou Jibing
- 刊名：Xinjiang Geology
- 出版年：2013
- 卷期：32(1)
- 关键词：聚煤规律 ; coal accumulation regularity ; 伊犁盆地 ; Yili Basin
- 页码：p.99-103
- 图表：illus., 9 refs.
- 分类号：1004
- issnNo：ISSN1000-8845
- isbnNo：CN65-1092/P
摘要
Anti E-W strictures proofs include as followings:coal preservation in southern and northern margin of Yining Sag,southern margin of western Middle Uplift,two sides of Awulale Mountain,isoline distribution of aeromagnetic anomaly in polymetallic deposit-accumulated area of Awulale Mountain and reflection characters on seismic profiles in Gongliu-Xinyuan Sag.All of the integrated geological factors above direct the distribution of E-W segments and N-S zones that are likely to belong to the features of pre-Jurassic anti E-W structures.Those anti E-W structures control coal accumulation extending N-S trending during Jurassic period(i.e.,Early Yanshan).During Late Yanshan,lateral compression(clockwise and anticlockwise) acted by Jungar and Tarim platforms make those anti E-W structures within Yili Basin escape westwards and express stress state of eastern extension and western compression.S-N trending compression during Himalayan period makes Late Yanshan structures(uplift and depression) superposed as E-W segments,composed of delta Yili Basin on the E-W tectonic setting.Current remnant synclines of pre Jurassic anti E-W structures are the favored positions over eroded area near Awulale Mountain.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |