柴达木盆地北缘古近纪—新近纪古地理演化

英文篇名：Palaeogeographic evolution of the Paleogene and Neogene in north margin of Qaidam Basin
中文刊名：古地理学报
英文刊名：Journal of Palaeogeography
作者：李凤杰 ; 孟立娜 ; 方朝刚 ; 李磊 ; 林洪
英文作者：Li Fengjie Meng Lina Fang Chaogang Li Lei Lin Hong Institute of Sedimentary Geology ; Chengdu University of Technology ; Chengdu 610059 ; Sichuan
中文关键词：沉积相 ; 古地理 ; 古近纪—新近纪 ; 柴达木盆地
英文关键词：sedimentary facies ; palaeogeography ; Paleogene and Neogene ; Qaidam Basin
出版日期：2012-10-01
机构：成都理工大学沉积地质研究院;
年：2012
期：05
出版单位：古地理学报

摘要

根据野外露头剖面和岩心观察,钻、录井及测井曲线以及地震等资料,研究了柴达木盆地北缘古近系—新近系的沉积相类型和沉积特征,结果表明该区主要发育冲积扇、扇三角洲、辫状河、辫状河三角洲及湖泊等沉积相类型。柴达木盆地北缘的沉积时空展布受盆地基底的构造格架及阿尔金山斜坡带生长逆冲断裂系、北缘逆冲断层和古隆起的联合作用,沉积体系具有多样性。冷湖地区受逆冲断层作用,发育了冲积扇—扇三角洲—湖泊沉积体系;马海—南八仙地区则受逆冲断层和古隆起的双重控制,发育冲积扇—辫状河—辫状河三角洲—湖泊沉积体系。在沉积相分析的基础上对古地理演化进行了系统分析,为下一步的油气勘探工作提供可靠的地质资料。
Based on description of outcrop section and cores,drilling well and logging and seismic data,the types of sedimentary facies and their characteristics of the Paleogene and Neogene were studied in the north margin of Qaidam Basin.The research showed that alluvial fan,fan delta,braided fluvial,braided fluvial delta and lacustrine facies were developed in the Paleogene and Neogene.The sedimentary spatial-temporal distribution was affected by the structural framework of basin base,the growth thrust faults of altun slope,the thrust fault in the north margin and palaeo-high land,bringing about the sedimentary system with diversity.By the effect of thrust faults and palaeo-high land,alluvial fan,fan delta and lacustrine facies were present in Lenghu-area,and alluvial fan-braid braided river delta were present in Mahai-Nanbaxian area.The systematic analysis about palaeogeographic evolution was achieved based on the sedimentary facies analysis,and more reliable geological information was provided for the further exploration.

引文

①青海局勘探开发研究院.1998.青海石油管理局一九九八年勘探部署报告.内部资料.
    ②赵澄林,张亚庆,赵伦,等.1998.柴达木盆地第三系沉积相特征及储盖层研究.内部资料,29-138.
    党玉琪,尹成明,赵东升.2004.柴达木盆地西部地区古近纪与新近纪沉积相[J].古地理学报,63):297-306.
    董文举,张道伟,邵毅,等.2008.柴达木盆地红柳泉地区下干柴沟组E13Ⅰ和E13Ⅱ砂层组沉积微相及沉积演化研究[J].天然气地球科学,19(1):111-115.
    金振奎,齐聪伟,薛建勤,等.2006.柴达木盆地北缘结绿素—红山地区古新统至中新统沉积相[J].古地理学报,8(3):377-388.
    金振奎,张响响,邹元荣,等.2002.青海砂西油田古近系下干柴沟组下部沉积相定量研究[J].古地理学报,4(4):99-107.
    李凤杰,刘琪,刘殿鹤,等.2009.柴达木盆地北缘下干柴沟组储集层特征及影响因素分析[J].天然气地球科学,20(1):44-49.
    李军,吴因业,崔化娟,等.2005.柴达木盆地7个泉地区下干柴沟组体系域和沉积相[J].新疆石油地质,26(4):370-372.
    刘伟,闫林,顾家裕,等.2008.柴达木盆地西部古近系与新近系的地震相[J].天然气工业,28(5):35-38.
    王鹏,赵澄林.2001.柴达木盆地北缘地区第三系碎屑岩储集层沉积相特征[J].石油大学学报自然科学版),25(1):12-16.
    吴因业,靳久强,李永铁,等.2003.柴达木盆地西部古近系湖侵体系域及相关储集体[J].古地理学报,5(2):232-243.
    杨平,陈晔,刘泽纯.2003.柴达木盆地自然伽马曲线在古气候及沉积环境研究中的应用[J].古地理学报,5(1):94-102.
    易定红,王斌婷,裴明利,等.2008.柴西乌南地区下干柴沟组下段沉积体系研究与有利储集层预测[J].石油地质与工程,22(5):10-14.
    赵加凡,陈小宏,杜业波.2004.柴达木第三纪湖盆沉积演化史[J].石油勘探与开发,3(11):41-45.
    周建勋,徐凤银,胡勇.2003.柴达木盆地北缘中、新生代构造变形及其对油气成藏的控制[J].石油学报,24(1):19-24.
    Friedman G M.1961.Distinction between dune,beach,river sands fromtheir textural characteristic[J].Journal of Sedimentary Petrolo-gy,31:514-529.