珠江口盆地番禺低隆起东部珠江组沉积环境的恢复
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摘要
对珠江口盆地番禺低隆起东部L16井中新统珠江组的岩心观察分析,岩性包括碎屑岩、碳酸盐岩以及碎屑-碳酸盐的混积岩。珠江组可划分为11种沉积微相类型;建立了三角洲—滨岸—碎屑与碳酸盐混积滨岸—碳酸盐台地—浅海陆棚(23.8 Ma~18.5 Ma)沉积演化序列。地震地质解释证实了珠江组早期东沙三角洲的存在;古珠江三角洲与东沙三角洲构成了研究区珠江组下段的沉积主体。恢复了研究区珠江组沉积相及其演化,重点刻画了SQ2—TST时期由陆到海的变迁,而海平面变化是这一变迁的主要控制因素。
Based on the data of drilled cores from Well L16 in eastern Panyu Uplift, Zhujiangkou Basin, it is shown that the Miocene Zhujiang Formation consists of clastic rock, carbonate rock and mixed clastic/carbonate rock in lithology. 11 depositional microfacies can be divided in Zhujiang Formation. A depositional evolution sequence which includes delta, shoreland, carbonate platform and then shelf is setup from Early to Late Miocene strata. The interpretation of seismic and geological data proves the existence of early Dongsha delta sediments so it is suggested that the Lower Member of Zhujiang Formation, which means the principal depositional part of it, should consist of the ancient Zhujiang delta and the Dongsha delta. Restoration of depositional environment and evolution has described a continuous change from continental to marine deposition in Subsequence SQ2(TST)during Miocene Zhujiang, that is a process from retrograding clastic to prograding carbonate deposition.
引文
[1]庞雄,陈长民,彭大钧,等.南海珠江深水扇系统及油气[M].北京:科学出版社,2007.
    [2]陈长民,施和生,许仕策,等.珠江口盆地(东部)第三系油气藏形成条件[M].北京:科学出版社,2003.
    [3]谢丽华,林畅松,董伟.珠江口盆地番禺低隆起珠江组—韩江组沉积体系[J].石油地质与工程,2009,23(2):5-8.
    [4]谢锐杰,严文芬,杜家元,等.珠江口盆地番禺低隆起韩江组下段层序地层与有利目标预测[J].石油天然气学报,2011,33(2):61-64.
    [5]董伟,林畅松,秦成岗,等.珠江口盆地番禺低隆起韩江组高精度层序格架和沉积样式与岩性地层圈闭的发育分布[J].现代地质,2008,22(5):794-802.
    [6]秦成岗,施和生,张忠涛,等.珠江口盆地番禺低隆起—白云凹陷北坡SQ21.0层序陆架坡折带沉积特征及油气勘探潜力[J].中国海上油气,2011,23(1):14-18.
    [7]侯国伟,于兴河,客伟利,等.番禺低隆起东区中新世早中期沉积演化特征[J].石油天然气学报,2005,27(1):26-28.
    [8]乔博,张昌民,李少华,等.珠江口盆地白云凹陷11.7~10.5Ma多期次水道特征研究[J].海相油气地质,2013,18(4):69-74.
    [9]庞雄,彭大钧,陈长民,等.三级“源-渠-汇”耦合研究珠江深水扇系统[J].地质学报,2007,81(6):857-864.
    [10]刘安,吴世敏,程卫华.珠江口盆地东沙隆起的沉降史及其动力机制[J].海洋学报,2011,33(6):117-124.
    [11]李小平,施和生,杜家元,等.珠江口盆地东沙隆起在珠海组—珠江组时期物源提供能力探讨[J].沉积学报,2014,32(4):654-662.
    [12]Miall A D.Reservoir heterogeneities in fluvial sandstones:Lessons from outcrop studies[J].AAPG Bulletin,1988,72(6):682-697.
    [13]Visher G S.Grain size distributions and deposition process[J].Journal of Sedimentary Petrology,1969,39(3):1074-1106.
    [14]Walker R G,James N P.Facies models,response to sea level change[M].Newfoundland:Geological Association of Canada,1992.
    [15]李小平,杜家元,丁琳,等.硬石膏-褐铁矿-高岭石-白云石矿物序列成因及古气候研究意义——以珠江口盆地东部LH-3井珠江组为例[J].吉林大学学报:地球科学版,2014,44(1):213-221.

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