南黄海中部隆起地层分布特征
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摘要
南黄海中部隆起是南黄海盆地构造最稳定的地区之一,也是下古生界含油气远景区之一,其找油前景引起人们极大的关注。应用小波分析等方法处理南黄海重磁异常场,揭示中部隆起区结晶基底起伏特征,同时结合区域地质以及地震剖面资料,对中部隆起地层分布特征提出了几点新认识:南黄海中部隆起结晶基底的起伏特征并非"平板"一块,其平面总体轮廓可概括为"三隆两坳";受印支运动的影响,中部隆起区发育的主要地层是震旦系-下二叠统,下三叠统青龙灰岩和上二叠统龙潭煤系已基本剥蚀殆尽;下古生界沉积中心大致位于结晶基底"坳陷"部位;上古生界受火山活动和岩浆侵入的影响,分布特征是分段而不连片;中部隆起分布着火山岩,分布特征是"东强西弱"。
The middle uplift of South Yellow Sea is tectonically one of the most stable areas in the basin,and it has received great concerns since its lower Paleozoic is a potential hydrocarbon-bearing prospect area.Wavelet analysis method has been used to deal with gravity and magnetic anomalies in the South Yellow Sea to obtain the crystalline basement shape of the middle uplift,and combined with regional geology and seismic section data,some new understandings on stratigraphic distribution features in the middle uplift are as follows:(1)The crystalline basement of middle uplift is not a flat "plain",and its geographic fluctuation pattern could be summarized as "three uplifts and two depressions";(2)Because of the Indo-China movement,the main strata in middle uplift were Sinian-lower Permian series,while both Qinglong-limestone of lower Triassic and Longtan-coal seam of upper Paleozoic have been completely eroded;(3)The depocenter of the lower Paleozoic was located at the depressions of the crystalline basement,and it was distributed non-continuously due to the volcanic activities and magma intrusion;(4)There are volcanic rocks scattering in the middle uplift showing the tendency of "more in the east,less in the west".
The middle uplift of South Yellow Sea is tectonically one of the most stable areas in the basin,and it has received great concerns since its lower Paleozoic is a potential hydrocarbon-bearing prospect area.Wavelet analysis method has been used to deal with gravity and magnetic anomalies in the South Yellow Sea to obtain the crystalline basement shape of the middle uplift,and combined with regional geology and seismic section data,some new understandings on stratigraphic distribution features in the middle uplift are as follows:(1)The crystalline basement of middle uplift is not a flat "plain",and its geographic fluctuation pattern could be summarized as "three uplifts and two depressions";(2)Because of the Indo-China movement,the main strata in middle uplift were Sinian-lower Permian series,while both Qinglong-limestone of lower Triassic and Longtan-coal seam of upper Paleozoic have been completely eroded;(3)The depocenter of the lower Paleozoic was located at the depressions of the crystalline basement,and it was distributed non-continuously due to the volcanic activities and magma intrusion;(4)There are volcanic rocks scattering in the middle uplift showing the tendency of "more in the east,less in the west".
引文
①引自“1∶100万南通幅海洋区域地质调查”调查研究报告.
①引自《“1∶100万南通幅海洋区域地质调查”调查研究报告》
①引自《“南黄海前第三系地质构造特征研究”2007年年度报告》
[1]蔡乾忠.中国东部朝鲜大地构造单元对应划分[J].海洋地质与第四纪地质,1995,15(1):7-24.[CAI Qianzhong.Correspond-ing division of geotectonic units of eastern China and Korea[J].Marine Geology and Quaternary Geology,1995,15(1):7-24.]
[2]金翔龙,喻普之.黄海、东海的地质构造[C]//黄东海地质.北京:科学出版社,1982.[JI N Xianglong,YU Puzhi.GeologicalStructure in Yellow Sea and East China Sea[C]//Geology inYellowand East China Sea.Beijing:Science Press,1982.]
[3]李刚,陈建文.黄海海域的海相中-古生界油气远景[J].海洋地质动态,2003,19(8):12-16.[LI Gang,CHEN Jianwen.Pe-troleumprospect of marine Paleozoic in The South Yellow Sea[J].Marine Geology Letters,2003,19(8):12-16.]
[4]温珍和,张金川.南黄海盆地找油新方向的探讨[J].海洋地质与第四纪地质,1989,19(2):19-28.[WEN Zhenhe,ZHANGJinchuan.A discussion about new directions for oil finding inSouthern Yellow Sea Basin of China[J].Marine Geology andQuaternary Geology,1989,19(2):19-28.]
[5]张家强.南黄海中、古生界油气勘探前景[J].海洋地质动态,2002,18(11):25-27.[ZHANG Jiaqiang.Oil and gas explora-tion prospect of Mesozoic and Paleozoic in South Yellow Sea[J].Marine Geology Letters,2002,18(11):25-27.]
[6]陈建文.南黄海盆地油气勘探战略选区[J].海洋地质动态,2002,18(11):28-29.[CHEN Jianwen.Strategic selection ofexploration areas in South Yellow Sea[J].Marine GeologyLetters,2002,18(11):28-29.]
[7]戴春山,李刚,蔡峰,等.黄海前第三系及油气勘探方向[J].中国海上油气(地质),2003,17(4):225-231.[DAI Chunshan,LI Gang,CAI Feng,et al.The Pretertiary and its hydrocar-bon exploration targets in Yellow Sea[J].China offshore Oiland Gas(Geology),2003,17(4):225-231.]
[8]王巍,陈高.苏北-南黄海盆地区域构造特征分析[J].地震学刊,1999(1):47-55.[WANG Wei,CHEN Gao.Analysis forregional structural characteristics of North Jiangsu-SouthYellow Sea Basin[J].Journal of Seismology,1991(1):47-55.]
[9]冯志强,姚永坚.对黄海中-古生界地质构造特征及油气远景的新认识[J].中国海上油气(地质),2002,16(6):367-373.[FENGZhiqiang,YAO Yongjian.Newunderstanding of Mes-ozoic-Paleozoic tectonics and hydrocarbon potential in YellowSea[J].China Offshore Oil and Gas(Geology),2002,16(6):367-373.]
[10]梁瑞才,韩国忠.南黄海重磁场与地质构造特征[J].科学通报,2001,12(46):59-67.[LI ANG Ruicai,HAN Guozhong.Characteristics of gravity and magnetic field and geologicalstructure in South Yellow Sea[J].Chinese Science Bulletin,2001,12(46):59-67.]
[11]侯遵泽,杨文采.小波分析应用研究[J].物探化探计算技术,1995,17:1-9.[HOU Zunze,YANG Wencai.An operationalresearch on the wavelet analysis[J].Computing Techniques-for Geophysical and Geochemical Exploration,1995,17:1-9.]
[12]侯遵泽,杨文采.中国重力异常的小波变换与多尺度分析[J].地球物理学报,1997,40(1):85-95.[HOU Zunze,YANGWencai.Wavelet transformand multi-scale analysis on gravi-ty anomalies of China[J].Chinese Journal of Geophysics,1997,40(1):85-95.]
[13]高德章,侯遵泽,唐建.东海及邻区重力异常多尺度分解[J].地球物理学报,2000,43(6):842-849.[GAO Dezhang,HOUZunze,TANG Jian.Multiscale analysis of gravity anomalieson East China Sea and adjacent regions[J].Chinese Journalof Geophysics,2000,43(6):842-849.]
[14]李健,周云轩,卢焱.重磁场多尺度分析原理[J].世界地质,2002,19(4):379-391.[LI Jian,ZHOU Yunxuan,LU Yan.Wavelet analysis andits applications to the gravitational fieldand magnetic field[J].World Geology,2002,19(4):379-391.]
[15]HOU Zunze,YANG Wencai.Decomposition of Crustal Gravi-ty Anomalies in China by Wavelet Transform[C].30th Inter-na-Tional Geological Congress.Beijing,China.1996.
[16]袁照令,李大明.油气勘探中磁异常ΔT解释问题[J].地质科技情报,1999,18(2):109-112.[YUAN Zhaoling,LI Daming.Problems of interpretation ofΔTin oil-gas explo-ration[J].Geological Science and Technology Information,1999,18(2):109-112.]
[17]罗孝宽,郭绍雍.应用地球物理教程—重力、磁法[M].北京:地质出版社,1991.[LUO Xiaokuan,GUO Shaoyong.Ap-plied Geophysics-Gravity and magnetic[M].Beijing:Geolog-ical Publishing House,1991]
①引自《“1∶100万南通幅海洋区域地质调查”调查研究报告》
①引自《“南黄海前第三系地质构造特征研究”2007年年度报告》
[1]蔡乾忠.中国东部朝鲜大地构造单元对应划分[J].海洋地质与第四纪地质,1995,15(1):7-24.[CAI Qianzhong.Correspond-ing division of geotectonic units of eastern China and Korea[J].Marine Geology and Quaternary Geology,1995,15(1):7-24.]
[2]金翔龙,喻普之.黄海、东海的地质构造[C]//黄东海地质.北京:科学出版社,1982.[JI N Xianglong,YU Puzhi.GeologicalStructure in Yellow Sea and East China Sea[C]//Geology inYellowand East China Sea.Beijing:Science Press,1982.]
[3]李刚,陈建文.黄海海域的海相中-古生界油气远景[J].海洋地质动态,2003,19(8):12-16.[LI Gang,CHEN Jianwen.Pe-troleumprospect of marine Paleozoic in The South Yellow Sea[J].Marine Geology Letters,2003,19(8):12-16.]
[4]温珍和,张金川.南黄海盆地找油新方向的探讨[J].海洋地质与第四纪地质,1989,19(2):19-28.[WEN Zhenhe,ZHANGJinchuan.A discussion about new directions for oil finding inSouthern Yellow Sea Basin of China[J].Marine Geology andQuaternary Geology,1989,19(2):19-28.]
[5]张家强.南黄海中、古生界油气勘探前景[J].海洋地质动态,2002,18(11):25-27.[ZHANG Jiaqiang.Oil and gas explora-tion prospect of Mesozoic and Paleozoic in South Yellow Sea[J].Marine Geology Letters,2002,18(11):25-27.]
[6]陈建文.南黄海盆地油气勘探战略选区[J].海洋地质动态,2002,18(11):28-29.[CHEN Jianwen.Strategic selection ofexploration areas in South Yellow Sea[J].Marine GeologyLetters,2002,18(11):28-29.]
[7]戴春山,李刚,蔡峰,等.黄海前第三系及油气勘探方向[J].中国海上油气(地质),2003,17(4):225-231.[DAI Chunshan,LI Gang,CAI Feng,et al.The Pretertiary and its hydrocar-bon exploration targets in Yellow Sea[J].China offshore Oiland Gas(Geology),2003,17(4):225-231.]
[8]王巍,陈高.苏北-南黄海盆地区域构造特征分析[J].地震学刊,1999(1):47-55.[WANG Wei,CHEN Gao.Analysis forregional structural characteristics of North Jiangsu-SouthYellow Sea Basin[J].Journal of Seismology,1991(1):47-55.]
[9]冯志强,姚永坚.对黄海中-古生界地质构造特征及油气远景的新认识[J].中国海上油气(地质),2002,16(6):367-373.[FENGZhiqiang,YAO Yongjian.Newunderstanding of Mes-ozoic-Paleozoic tectonics and hydrocarbon potential in YellowSea[J].China Offshore Oil and Gas(Geology),2002,16(6):367-373.]
[10]梁瑞才,韩国忠.南黄海重磁场与地质构造特征[J].科学通报,2001,12(46):59-67.[LI ANG Ruicai,HAN Guozhong.Characteristics of gravity and magnetic field and geologicalstructure in South Yellow Sea[J].Chinese Science Bulletin,2001,12(46):59-67.]
[11]侯遵泽,杨文采.小波分析应用研究[J].物探化探计算技术,1995,17:1-9.[HOU Zunze,YANG Wencai.An operationalresearch on the wavelet analysis[J].Computing Techniques-for Geophysical and Geochemical Exploration,1995,17:1-9.]
[12]侯遵泽,杨文采.中国重力异常的小波变换与多尺度分析[J].地球物理学报,1997,40(1):85-95.[HOU Zunze,YANGWencai.Wavelet transformand multi-scale analysis on gravi-ty anomalies of China[J].Chinese Journal of Geophysics,1997,40(1):85-95.]
[13]高德章,侯遵泽,唐建.东海及邻区重力异常多尺度分解[J].地球物理学报,2000,43(6):842-849.[GAO Dezhang,HOUZunze,TANG Jian.Multiscale analysis of gravity anomalieson East China Sea and adjacent regions[J].Chinese Journalof Geophysics,2000,43(6):842-849.]
[14]李健,周云轩,卢焱.重磁场多尺度分析原理[J].世界地质,2002,19(4):379-391.[LI Jian,ZHOU Yunxuan,LU Yan.Wavelet analysis andits applications to the gravitational fieldand magnetic field[J].World Geology,2002,19(4):379-391.]
[15]HOU Zunze,YANG Wencai.Decomposition of Crustal Gravi-ty Anomalies in China by Wavelet Transform[C].30th Inter-na-Tional Geological Congress.Beijing,China.1996.
[16]袁照令,李大明.油气勘探中磁异常ΔT解释问题[J].地质科技情报,1999,18(2):109-112.[YUAN Zhaoling,LI Daming.Problems of interpretation ofΔTin oil-gas explo-ration[J].Geological Science and Technology Information,1999,18(2):109-112.]
[17]罗孝宽,郭绍雍.应用地球物理教程—重力、磁法[M].北京:地质出版社,1991.[LUO Xiaokuan,GUO Shaoyong.Ap-plied Geophysics-Gravity and magnetic[M].Beijing:Geolog-ical Publishing House,1991]
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