珠江口盆地东沙隆起珠江组碳酸盐岩层序地层及沉积模式  

Carbonate Sequence Stratigraphy and Sedimentary Modes of Dongsha Massif in Pearl River-mouth Basin

作　　者：周小康 汪瑞良 曾驿 刘军 

机构地区：[1]中海石油(中国)有限公司深圳分公司,广东广州510240

出　　处：《石油天然气学报》2011年第9期1-6,164,共6页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05025-03)

摘　　要：利用钻井、测井、岩心、分析化验及丰富的地震资料,将中新统珠江组划分为4个沉积层序、8个体系域及5个层序边界,其中SB1、SB2、SB4、SB5属于Ⅰ型层序边界,SB3属于Ⅱ型层序边界。对比经典的碳酸盐岩层序模式,研究区所有层序缺失低位体系域,且研究区层序模式变化比较频繁,SQ1属于干旱条件下缓坡模式,SQ2、SQ3属于半潮湿条件下镶边模式,SQ4属于潮湿条件下相离镶边模式。Well logging cores and analytical data were deployed to divide Miocene Zhujiang Formation into 4 sedimentary sequences and 8 system domains,in which sequence boundaries of SB1,SB2,SB4 and SB5 were Type Ⅰsequence boundary,SB3 was Type Ⅱ sequence boundary.Comparing with classic carbonate sequence stratigraphies,all sequences are lack of LST,and they changes frequently in the studied area.SQ1 is developed under condition of arid carbonate ramp mode,SQ2,SQ3 are under condition of half-humid carbonate rimmed-platform mode,SQ4 is humid detached rimmed platform mode.

关 键 词：珠江口盆地 东沙隆起 珠江组 碳酸盐岩层序地层 沉积模式 

分 类 号：P539.2[天文地球—古生物学与地层学]