天然气地球科学

• 天然气地质学 • 上一篇    下一篇

柴东北缘古生代碎屑岩—碳酸盐岩混积相发育特征及组合模式研究

孙娇鹏,陈世悦,胡忠亚,刘文,郭晨,马帅   

  1. 1.中国石油大学(华东)地球科学与技术学院,山东 青岛 266555;
    2.中国石油西南油气田公司勘探开发研究院,四川 成都 610051;
    3.中国矿业大学煤层气资源与成藏过程教育部重点实验室,江苏 徐州 221116
  • 收稿日期:2013-12-15 修回日期:2014-05-01 出版日期:2014-10-10 发布日期:2014-10-10
  • 作者简介:孙娇鹏(1988-),男,山东烟台人,博士研究生,主要从事大地构造与沉积学研究. E-mail:sunjiaopeng@163.com.
  • 基金资助:
    国土资源地调项目(编号:[2013]04-001-001;12120113040000-3)资助.
     

Research on the Mixed Model and Developmental Characteristic of theClastic-Carbonate Diamictite Facies in the Northern Qaidam
 

SUN Jiao-peng, CHEN Shi-yue, HU Zhong-ya, LIU Wen-ping, GUO Chen, MA Shuai   

  1. (1.School of Geosciences,China University of Petroleum,Qingdao 266555,China; 2.PetroChina Southwest Oil and Gas Field Company,Chengdu 610051,China; 3.Key Laboratory of CBM Resource and Reservoir Formation Process, Ministry of Education, Xuzhou 221116, China)
  • Received:2013-12-15 Revised:2014-05-01 Online:2014-10-10 Published:2014-10-10

摘要:


综合前人的研究成果,结合研究区大量的露头和钻井资料,共识别出混积潮坪相、混积碎屑海岸相、混积台地相及混积陆棚相等4种混合沉积相类型。在对该区古生代沉积格架系统研究的基础上,结合对不同时期沉积格局及演化规律的分析,总结出潮坪—碳酸盐岩台地—欠补偿盆地沉积组合和滨岸—台地—陆棚沉积组合2种平面沉积相组合发育模式。相对海平面的升降变化和物源供给能力的强弱是影响沉积相组合模式的主要因素。其中潮坪—碳酸盐岩台地—欠补偿盆地沉积组合模式主要发育在早古生代,滨岸—台地—陆棚沉积组合模式主要发育在晚古生代。

关键词: 柴东北缘, 古生界, 混合沉积, 沉积组合模式, 沉积演化, 控制因素

Abstract:

Based on previous research,combined with abundant data on outcrops and cores in the study area,we recognized four kinds of mixed sedimentary facies such as mixed tidal flat facies,mixed clastic coast facies,mixed platform facies and mixed continental shelf facies.On the basis of the study of local Paleozoic sedimentary framework,combined with the analysis of sedimentary patterns and their evolution rules in different periods,we summerized two development models of plane sedimentary facies associations,i.e.,tidal flat-carbonate platform-under compensated basin assemblage and shoreland-platform-continental shelf assemblage.Rise and fall of the relative sea-level and intensity of the provenance supply ability are the two main factors influencing the development models of sedimentary facies associations.Among them,the tidal flat-carbonate platform-under compensated basin assemblage was mainly developed in the Early Paleozoic,whereas the shoreland-platform-continental shelf assemblage was mainly developed in the Late Paleozoic.
 

 

Key words: Northeast margin of Qaidam Basin, Paleozoic, Mixed sediments, Models of sedimentary facies associations, Sedimentary evolution, Controlling factors

中图分类号: 

  • TE122.2+21
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