松辽盆地东岭地区早白垩世小型断陷的充填特征与演化过程
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摘要
通过岩芯观察资料、测井资料及地震资料分析,对松辽盆地南部火石岭组地层沉积相的类型和特征进行了研究。综合分析表明:火石岭组上覆火二段为全区广泛发育的火山岩,其下的火一段沉积岩可划分为5个四级层序;其沉积环境主要为扇三角洲和湖泊沉积,断裂转换带显著地控制了沉积相带的空间分布。火石岭组一段沉积演化主要受控于小型断陷内可容纳空间及沉积物供应的变化,可划分为两个阶段:早期属于低位水进体系域,以滨浅湖至半深湖相沉积为主,为湖扩阶段;后期高位体系域以扇三角洲相充填为主,为湖退阶段。
Based on the core observation,drilling and seismic data,the sedimentary characteristics and the distribution of sedimentary facies and sedimentary evolution of Huoshiling sequence were studied.The results show that the overlying volcanic rocks widely developed in nearly whole region are member 2 of Huoshiling formation,and member 1 of Huoshiling formation can be divided into five level 4 sequences.Delta facies and lake facies are the mainly sedimentary facies in Huoshiling formation.Due to the small fault’s accommodation space and sediment supply change,the sedimentary evolution in member 1 of Huoshiling formation is divided into two stages: the early LST period of Huoshiling formation is dominated by littoral and shallow lake-half deep lacustrine deposition,and the late HST period of Huoshiling formation is dominated by fan delta deposition.The LST is transgression period,and the HST is retrogression period.
Based on the core observation,drilling and seismic data,the sedimentary characteristics and the distribution of sedimentary facies and sedimentary evolution of Huoshiling sequence were studied.The results show that the overlying volcanic rocks widely developed in nearly whole region are member 2 of Huoshiling formation,and member 1 of Huoshiling formation can be divided into five level 4 sequences.Delta facies and lake facies are the mainly sedimentary facies in Huoshiling formation.Due to the small fault’s accommodation space and sediment supply change,the sedimentary evolution in member 1 of Huoshiling formation is divided into two stages: the early LST period of Huoshiling formation is dominated by littoral and shallow lake-half deep lacustrine deposition,and the late HST period of Huoshiling formation is dominated by fan delta deposition.The LST is transgression period,and the HST is retrogression period.
引文
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[2]胡望水,吕炳全,张文军,等.松辽盆地构造演化及成盆动力学探讨.地质科学,2005,40(1):16-31
[3]张玉明.松辽盆地南部十屋断陷北部深层油气成藏条件.石油天然气学报,2006,28(3):53-56
[4]陈娟,张庆龙,王良书,等.松辽盆地长岭断陷盆地断陷期构造转换及油气地质意义.地质学报,2008,82(8):1027-1035
[5]李树青,李和,徐伟,等.松辽盆地南部下白垩统层序构型及沉积特征.天然气工业,2007,27(4):36-39
[6]王德海,周靖.松辽盆地东南隆起区油气分布特征.天然气工业,2002,22(2):101-102
[7]俞凯,侯洪斌,郭念发,等.松辽盆地南部断陷层系石油天然气地质.北京:石油工业出版社,2002:42-96
[8]杨丽英,李瑞磊.松辽盆地南部深层火山岩、火山机构和火山岩相地质–地震综合识别.吉林大学学报:地球科学版,2007,37(6):1083-1090
[9]裴福萍,许文良,杨德斌,等.松辽盆地南部中生代火山岩:锆石U-Pb年代学及其对基底性质的制约.地球科学,2008,33(5):603-617
[10]林畅松,刘景彦,刘丽军,等.高精度层序地层分析:建立沉积相和储层规模的等时地层格架.现代地质,2002,16(3):276-281
[11]沈安江,康伟力,王艳清,等.松辽盆地南部白垩纪层序地层与岩性地层油气藏勘探.北京:石油工业出版社,2006:1-8
[12]于兴河.碎屑岩系油气储层沉积学.北京:石油工业出版社,2008:251-397
[13]朱炎铭,邵震杰,任文忠,等.小江断裂带第三纪走滑断陷盆地的充填层序特征.沉积学报,2001,19(1):37-42
[14]张萌,田景春.近岸水下扇的命名、特征及其储集性.岩相古地理,1999,19(4):42-52
[15]Gawthorpe R L,Hurst J M.Transfer zones inextensional basins:their structural style and influenceon drainage development and stratigraphy.Journal ofGeology Society,1993,150:1137-1152
[16]Young M J,Gawthorpe R L.Sedimentology andsequence stratigraphy of a transfer zone coarse-grained delta,Miocene Suez Rift,Egypt.Sediment-ology,2000,47:1081-1104
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