利用重、磁异常研究东海南部中生界分布
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摘要
对东海南部重、磁数据进行了相关处理(如布格重力异常校正、磁异常化极处理等),得到了东海南部各种重、磁异常数据；总结出了一套利用重、磁数据研究该区中生界分布及厚度特征的技术流程,并经过实践,验证了其正确性和可行性；为了更好的反演中生界厚度,对线性回归反演方法进行了改进,利用初步反演结果再进行多次迭代反演,提高了反演精度,并编制了相应的程序,通过几种理论模型的试算验证了其正确性。
重点分析了研究区深大断裂对中生界分布的控制作用。指出了F1-1断裂对该区具有重要构造意义,可能产生于前中生代或中生代,控制了东海陆架盆地南北的基底的不同,北侧较早,可能为早元古代,南侧较晚,可能为晚元古代。以此断裂为界,将东海陆架盆地分为了南北两块,体现出“南北分块”的特征。
对该区中生界进行了初步划分,共划分中生界面积4.53×104km2,11个中生界沉积中心,并进行了分类描述,提出了东海南部中生界主要分布于F1-1断裂以南；对厚度进行了反演,中生界厚度从北至南、自西往东逐渐增厚,南部最厚处达4000米之多。
Some kinds of gravity and magnetic data,which is in the Southern Part of East China Sea, has been obtained. By some data processing for gravity and magnetic data, for example, buger correction, isostatic correction,magnetic RTP, and so,on; And we draw out the technical flow, which is already tested for validity and feasibility, for study on Mesozoic Strata distributing and its thickness by gravity and magnetic data; In order to inverse better Mesozoic Strata thickness, we mend traditional linear regression inversion, we do many iterative inversion using primary inversion result, which is good for advancing precision. And we work out relevant reformative program, which is validated by some theoretical models.
Actions of some deep and big fault for Mesozoic Strata has been analysed. We indicate that F1-1 fault have important tectonical meaning. It propably appeared in Mesozoic or before it. The F1-1 fault control base distinctness in south and north of the East China Sea. The base of the north maybe is early Paleozoic, and the base of the south maybe is late Paleozoic. By the bourn of F1-1 fault, the basin of the East China Sea is divided into south and north part.
We compartmentalize Mesozoic Strata, their total area is about 4.53×104km2, and eleven sedimentary center, which are described respectively. We indicate that the Mesozoic Strata in southern of the East China Sea mainly locate south of F1-1 fault. Through thickness inversion, we find Mesozoic Strata's thickness is gradually becoming thick from north to south and from west to east, the biggest thickness in the south is above 4000m.
重点分析了研究区深大断裂对中生界分布的控制作用。指出了F1-1断裂对该区具有重要构造意义,可能产生于前中生代或中生代,控制了东海陆架盆地南北的基底的不同,北侧较早,可能为早元古代,南侧较晚,可能为晚元古代。以此断裂为界,将东海陆架盆地分为了南北两块,体现出“南北分块”的特征。
对该区中生界进行了初步划分,共划分中生界面积4.53×104km2,11个中生界沉积中心,并进行了分类描述,提出了东海南部中生界主要分布于F1-1断裂以南；对厚度进行了反演,中生界厚度从北至南、自西往东逐渐增厚,南部最厚处达4000米之多。
Some kinds of gravity and magnetic data,which is in the Southern Part of East China Sea, has been obtained. By some data processing for gravity and magnetic data, for example, buger correction, isostatic correction,magnetic RTP, and so,on; And we draw out the technical flow, which is already tested for validity and feasibility, for study on Mesozoic Strata distributing and its thickness by gravity and magnetic data; In order to inverse better Mesozoic Strata thickness, we mend traditional linear regression inversion, we do many iterative inversion using primary inversion result, which is good for advancing precision. And we work out relevant reformative program, which is validated by some theoretical models.
Actions of some deep and big fault for Mesozoic Strata has been analysed. We indicate that F1-1 fault have important tectonical meaning. It propably appeared in Mesozoic or before it. The F1-1 fault control base distinctness in south and north of the East China Sea. The base of the north maybe is early Paleozoic, and the base of the south maybe is late Paleozoic. By the bourn of F1-1 fault, the basin of the East China Sea is divided into south and north part.
We compartmentalize Mesozoic Strata, their total area is about 4.53×104km2, and eleven sedimentary center, which are described respectively. We indicate that the Mesozoic Strata in southern of the East China Sea mainly locate south of F1-1 fault. Through thickness inversion, we find Mesozoic Strata's thickness is gradually becoming thick from north to south and from west to east, the biggest thickness in the south is above 4000m.
引文
[1]刘光鼎.关于中国油气资源的第二次创业的建议[J].特种油气藏,2007,14(1)：1-2
[2]张大伟.中国油气资源战略选区若干问题的思考[J].地质通报,2006,25(9,10)：1013-1016
[3]王万银,潘作枢.双界面模型重力场快速正反演问题[J].石油物探,1993,32(2)：81-87
[4]Wang Wanyin,Pan Yu,Qiu Zhiyun. A new edge recognition technology based on the normalized vertical derivative of the total horizontal derivative for potential field data[J].Applied Geophysics,2009,6(3):226-233
[5]王可德,王建平,徐国庆,钟石兰,张一勇,样恒仁.东海陆架盆地西南部中生代地层的发现[J].地层学杂志,2000,24(2)：129-131
[6]冯晓杰,张川燕,王春修,高乐.东海陆架和台西南盆地中生界及其油气勘探潜力,中国海上油气[J].2001,15(5)：306-316
[7]徐汉林,冯世焕,朱宏发,沈扬,赵平.晚三叠世-中侏罗世：中国南方前陆盆地构造格局的形成与演化,海相油气地质[J].2001,6(1)：19-26
[8]陈建文,李刚,陈国威.东海陆架盆地西部坳陷带的中生界和古新统油气远景,海洋地质动态[J].2003,19(8)：17-19
[9]冯晓杰,蔡东升,王春修,高乐.东海陆架盆地中新生代构造演化特征,中国海上油气[J].2003,17(1)：33-37
[10]须雪豪,陈琳琳,汪企浩.东海陆架盆地中生界地质特征与油气资源潜力浅析,海洋石油[J].2004,24(3)：1-7
[11]郑求根,周祖翼,蔡立国,陆永德,曹清古.东海陆架盆地中新生代构造背景及演化,石油与天然气地质[J].2005,26(2)：197-201
[12]刘建华,黎明碧,方银霞.东海陆架盆地海相中生界及其与邻近古海洋关系探讨,热带海洋学报[J].2005,24(2)：1-7
[13]高乐.东海陆架中生代残余盆地特征及勘探方向探讨,中国海上油气[J].2005,17(31)：148-152
[14]冯晓杰,蔡东升.东海陆架盆地中新生代构造演化对烃源岩分布的控制作用,中国海上油气[J].2006,18(6)：372-375
[15]高德章,赵金海,薄玉玲,唐建.东海及邻近地区岩石圈三维结构研究,地质科学[J].2006,41(1)：10-26
[16]高德章,唐建,薄玉玲.重磁成果与东海西部凹陷带中生代沉积层展布,海洋石油[J].2006,26(2)：1-6
[17]刘建华,吴建生,方银霞,王舒畋.东海陆架盆地的前新生界,海洋学报[J].2007,29(1)：66-75
[18]刘英会,黎津,余学中.东海陆架盆地西缘南北向深大断裂,物探与化探[J].2007,31(6)：518-525
[19]刘保华,刘忠臣,王述功.冲绳海槽海底地形的补偿模式初步研究[J].海洋地质与第四纪地质,1998,18(4)：29-34
[20]张赤军,方剑,马宗晋.均衡异常与现代构造应力场的初步研究-以东海及其东缘海为例[J].地震学报,2003,25(1)：32-39
[21]高德章.东海陆架盆地岩石密度与磁性[J].上海地质,1995,总(54)：38-45
[22]丁海涛.东海重磁场特征和前新生代地质解释与研究[D].同济大学,2004
[23]肖鹏飞,陈生昌,孟令顺,杨金玉.高精度重力资料的密度界面反演[J].物探与化探,2007,31(1)：29-33
[24]张季生,高锐,李秋生,管烨,贺日政,祝尉洪.台湾海峡及邻区地球物理特征及地壳密度结构[J].地质评论,2008,54(5)：694-698
[25]李廷栋,莫杰.中国斌太平洋构造域构造格架和东海地质演化[J].海洋地质与第四纪地质,2002,22(4)：1-6
[26]刘光鼎,郝天姚,刘伊克.重磁研究对认识盆地的意义[J].地球物理学进展,1996,11(2)：1-14
[27]高尔根,宋淑云,刘升东.重力异常稳健迭代密度界面反演研究[J].中国科学技术大学学报,2007,37(8)：916-921
[28]马丽芳主编.中国地质图集[M].北京：地质出版社,2002
[29]李家彪主编.东海区域地质[M].北京：海洋出版社,2008
[30]车自成等编.中国及其邻区区域大地构造学[M].北京：科学出版社,2002
[31]沈然清,李上卿.东海盆地岩浆岩活动,刘申叔,李上卿等编著.东海油气地球物理勘探[M].北京：地质出版社,2002
[32]许薇龄,乐俊英,柴利根.地质特征,刘光鼎主编.中国海区及邻域地质地球物理 特征[M].北京：科学出版社,1992
[33]孟祥君.东海磁性基底反演及其构造意义研究[D].桂林工学院,2006
[34]郭玉贵,李延成,许东禹,刘锡清,张训华.黄东海大陆架及邻域大地构造演化史[J].海洋地质与第四纪地质,1997,17(1)：1-12
[35]管志宁.地磁场与磁力勘探[M].北京：地质出版社,2005
[2]张大伟.中国油气资源战略选区若干问题的思考[J].地质通报,2006,25(9,10)：1013-1016
[3]王万银,潘作枢.双界面模型重力场快速正反演问题[J].石油物探,1993,32(2)：81-87
[4]Wang Wanyin,Pan Yu,Qiu Zhiyun. A new edge recognition technology based on the normalized vertical derivative of the total horizontal derivative for potential field data[J].Applied Geophysics,2009,6(3):226-233
[5]王可德,王建平,徐国庆,钟石兰,张一勇,样恒仁.东海陆架盆地西南部中生代地层的发现[J].地层学杂志,2000,24(2)：129-131
[6]冯晓杰,张川燕,王春修,高乐.东海陆架和台西南盆地中生界及其油气勘探潜力,中国海上油气[J].2001,15(5)：306-316
[7]徐汉林,冯世焕,朱宏发,沈扬,赵平.晚三叠世-中侏罗世：中国南方前陆盆地构造格局的形成与演化,海相油气地质[J].2001,6(1)：19-26
[8]陈建文,李刚,陈国威.东海陆架盆地西部坳陷带的中生界和古新统油气远景,海洋地质动态[J].2003,19(8)：17-19
[9]冯晓杰,蔡东升,王春修,高乐.东海陆架盆地中新生代构造演化特征,中国海上油气[J].2003,17(1)：33-37
[10]须雪豪,陈琳琳,汪企浩.东海陆架盆地中生界地质特征与油气资源潜力浅析,海洋石油[J].2004,24(3)：1-7
[11]郑求根,周祖翼,蔡立国,陆永德,曹清古.东海陆架盆地中新生代构造背景及演化,石油与天然气地质[J].2005,26(2)：197-201
[12]刘建华,黎明碧,方银霞.东海陆架盆地海相中生界及其与邻近古海洋关系探讨,热带海洋学报[J].2005,24(2)：1-7
[13]高乐.东海陆架中生代残余盆地特征及勘探方向探讨,中国海上油气[J].2005,17(31)：148-152
[14]冯晓杰,蔡东升.东海陆架盆地中新生代构造演化对烃源岩分布的控制作用,中国海上油气[J].2006,18(6)：372-375
[15]高德章,赵金海,薄玉玲,唐建.东海及邻近地区岩石圈三维结构研究,地质科学[J].2006,41(1)：10-26
[16]高德章,唐建,薄玉玲.重磁成果与东海西部凹陷带中生代沉积层展布,海洋石油[J].2006,26(2)：1-6
[17]刘建华,吴建生,方银霞,王舒畋.东海陆架盆地的前新生界,海洋学报[J].2007,29(1)：66-75
[18]刘英会,黎津,余学中.东海陆架盆地西缘南北向深大断裂,物探与化探[J].2007,31(6)：518-525
[19]刘保华,刘忠臣,王述功.冲绳海槽海底地形的补偿模式初步研究[J].海洋地质与第四纪地质,1998,18(4)：29-34
[20]张赤军,方剑,马宗晋.均衡异常与现代构造应力场的初步研究-以东海及其东缘海为例[J].地震学报,2003,25(1)：32-39
[21]高德章.东海陆架盆地岩石密度与磁性[J].上海地质,1995,总(54)：38-45
[22]丁海涛.东海重磁场特征和前新生代地质解释与研究[D].同济大学,2004
[23]肖鹏飞,陈生昌,孟令顺,杨金玉.高精度重力资料的密度界面反演[J].物探与化探,2007,31(1)：29-33
[24]张季生,高锐,李秋生,管烨,贺日政,祝尉洪.台湾海峡及邻区地球物理特征及地壳密度结构[J].地质评论,2008,54(5)：694-698
[25]李廷栋,莫杰.中国斌太平洋构造域构造格架和东海地质演化[J].海洋地质与第四纪地质,2002,22(4)：1-6
[26]刘光鼎,郝天姚,刘伊克.重磁研究对认识盆地的意义[J].地球物理学进展,1996,11(2)：1-14
[27]高尔根,宋淑云,刘升东.重力异常稳健迭代密度界面反演研究[J].中国科学技术大学学报,2007,37(8)：916-921
[28]马丽芳主编.中国地质图集[M].北京：地质出版社,2002
[29]李家彪主编.东海区域地质[M].北京：海洋出版社,2008
[30]车自成等编.中国及其邻区区域大地构造学[M].北京：科学出版社,2002
[31]沈然清,李上卿.东海盆地岩浆岩活动,刘申叔,李上卿等编著.东海油气地球物理勘探[M].北京：地质出版社,2002
[32]许薇龄,乐俊英,柴利根.地质特征,刘光鼎主编.中国海区及邻域地质地球物理 特征[M].北京：科学出版社,1992
[33]孟祥君.东海磁性基底反演及其构造意义研究[D].桂林工学院,2006
[34]郭玉贵,李延成,许东禹,刘锡清,张训华.黄东海大陆架及邻域大地构造演化史[J].海洋地质与第四纪地质,1997,17(1)：1-12
[35]管志宁.地磁场与磁力勘探[M].北京：地质出版社,2005