引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览次   下载 本文二维码信息
码上扫一扫!
分享到: 微信 更多
柴达木盆地古近系沉积相研究
苏妮娜1, 金振奎2, 宋 璠1, 顾军锋2, 陈 英2, 张卫丹2
(1.中国石油大学地球科学与技术学院,山东青岛 266580;2.中国石油大学地球科学学院,北京 102249)
摘要:
综合利用野外露头剖面、钻井剖面、岩心以及测井、地震等多种资料,采用单因素分析多因素综合作图的定量岩相古地理研究方法,以三级层序为单元对柴达木盆地古近系沉积相进行综合研究。结果表明:柴达木盆地古近系发育冲积扇、辫状河、洪泛平原、扇三角洲、辫状河三角洲、湖泊和浊积扇7种沉积相类型;受盆地构造演化作用的控制,柴达木盆地古近系沉积经历了水体由浅变深的演化过程;阿尔金山西段的山前陡坡带主要发育扇三角洲-浊积扇-湖泊沉积体系,阿尔金山中段的山前缓坡带主要发育冲积扇-辫状河-辫状河三角洲-湖泊沉积体系,柴北缘及柴东地区主要发育辫状河-洪泛平原沉积体系。
关键词:  柴达木盆地  古近系  单因素分析多因素综合作图法  定量沉积相  沉积相演化
DOI:10.3969/j.issn.1673-5005.2014.03.001
分类号:P 512.2 〖HTH〗
基金项目:山东省自然科学基金项目(ZR2011DL005);国家科技重大专项(2011ZX05009-002);中央高校基本科研业务费专项(27R1101061A)
Sedimentary facies of the Paleogene in Qaidam Basin
SU Ni-na1, JIN Zhen-kui2, SONG Fan1, GU Jun-feng2, CHEN Ying2, ZHANG Wei-dan2
(1.School of Geosciences in China University of Petroleum, Qingdao 266580,China;2.College of Geosciences in China University of Petroleum, Beijing 102249, China)
Abstract:
Based on integrated analysis of outcrop section, drilling profiles, cores, well logging and seismic data, according to the quantitative lithofacies paleogeography, i.e. single factor analysis and multifactor comprehensive mapping method, the sedimentary facies of the Paleogene in Qaidam Basin were comprehensively studied by the third-order sequence as the unit. The results show that there are seven types of sedimentary facies in this region, including alluvial fan, braided river, floodplain, fan delta, braided river delta, lake and turbidite fan. Under the control of the structural evolution function, the sedimentary water of the Paleogene in Qaidam Basin experienced the evolution process from shallow to deep. The sedimentary facies were respectively fan delta-turbidite fan-lake sedimentary system in piedmont steep slope zone of the western Altun Mountains, the alluvial fan-braided river-braided river delta-lake sedimentary system in piedmont gentle slope zone of the middle section of the Altun Mountains, and the braided river-floodplain sedimentary system in the east and northern margin of Qaidam Basin.
Key words:  Qaidam Basin  Paleogene  single factor analysis and multifactor comprehensive mapping method  quantitative sedimentary facies  sedimentary facies evolution
版权所有 中国石油大学学报(自然科学版)编辑部 Copyright©2008 All Rights Reserved
主管单位:中华人民共和国教育部 主办单位:中国石油大学(华东)
地址: 青岛市黄岛区长江西路66号中国石油大学期刊社 邮编:266580 电话:0532-86983553 E-mail: journal@upc.edu.cn
本系统由:北京勤云科技发展有限公司设计