关于黄海深部构造的地球物理认识
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摘要
利用黄海海区重磁观测数据,以最新的地震层析成像和浅层反射地震探测结果作为约束,并利用小波分解、纹理特征图像处理等手段,对研究区进行了地球物理场特征分析、岩石物性总结、断裂信息提取和磁性基底埋深反演计算,同时对南黄海海域三条剖面进行了广义逆重磁数据拟合反演和地震P波速度成像.根据地球物理数据的各种处理结果,提出在南黄海西部存在一条串珠状地球物理线性构造带,并将这条NNW向断续延伸的构造带称之为南黄海西缘断裂带.该断裂带延伸长,断裂两侧前新生代地层差异较大,有可能是造成陆区和南黄海南部盆地区前新生代油气远景差异的原因之一.文中得到南黄海磁性基底埋藏分布具有"中间浅四周深"的分布特征,与地震层析成像结果相吻合.磁性基底的局部起伏和局部构造的边界断层共同控制了前新生代残留盆地的格架和残余厚度分布,反映出"区域控制局部,深层约束浅层"的规律.
Basing on gravity and magnetic data,the wavelet and textural analysis methods are used to analysis the geophysical field features,extract faults information,and calculate magnetic basement in Yellow Sea.Results of new seismic tomography and shallow reflection seismic soundings are taken as the constraint,and three gravity and magnetic profiles are inversed by using generalized method.According to the processing results,we propose that there is a beaded geophysical linear belt in western South Yellow Sea.The belt is NNW trending and we name it South Yellow Sea west marginal fault zone.This fault zone has large extension length and there is great difference in pre-Cenozoic strata of the two sides.It may be the reason why pre-Cenozoic petroleum prospect is different between the land and southern South Yellow Sea Basin.Magnetic basement distribution of Yellow Sea is shallow in the middle,while is deep around,which is consistent with the seismic tomography results.The pre-Cenozoic macro-distribution of residual basin is controlled by local relief of magnetic basement and boundary faults of local structure jointly,which reflects the regularity that local tectonics is controlled by regional tectonics,and shallow structures is controlled by deep structures.
Basing on gravity and magnetic data,the wavelet and textural analysis methods are used to analysis the geophysical field features,extract faults information,and calculate magnetic basement in Yellow Sea.Results of new seismic tomography and shallow reflection seismic soundings are taken as the constraint,and three gravity and magnetic profiles are inversed by using generalized method.According to the processing results,we propose that there is a beaded geophysical linear belt in western South Yellow Sea.The belt is NNW trending and we name it South Yellow Sea west marginal fault zone.This fault zone has large extension length and there is great difference in pre-Cenozoic strata of the two sides.It may be the reason why pre-Cenozoic petroleum prospect is different between the land and southern South Yellow Sea Basin.Magnetic basement distribution of Yellow Sea is shallow in the middle,while is deep around,which is consistent with the seismic tomography results.The pre-Cenozoic macro-distribution of residual basin is controlled by local relief of magnetic basement and boundary faults of local structure jointly,which reflects the regularity that local tectonics is controlled by regional tectonics,and shallow structures is controlled by deep structures.
引文
[1] 刘光鼎,前新生代海相残留盆地.地球物理学进展,2001,16(2) :1～7 Liu G D.Pre-Cenozoic marine residual basins.Progress in Geophysics(in Chinese),2001,16(2) :1～7
[2] 蔡乾忠.黄海含油气盆地区域地质与大地构造环境.海洋地质动态,2002,18(11) :8～12 Cai Q Z.Regional geology and geotectonic environment of petroliferous basins in the Yellow Sea.Marine Geology Letters(in Chinese),2002,18(11) :8～12
[3] HaoT Y,Xu Y,Suh M,et al.East Marginal Fault of the Yellow Sea:a part of the conjunction zone between Sino-Korea and Yangtze Blocks9 Geological Society,2007,280:281～291
[4] 杨树春,胡圣标,蔡东升等.南黄海南部盆地地温场特征及热-构造演化.科学通报,2003,48(14) :1564～1569 Yang C S,Hu S B,Cai D S,et al.Geothermal field characteristics and heat-tectonic evolution of southern basin of South Yellow Sea.Chinese Science Bulletin,2003,48 (14) :1564～1569
[5] Yin A,Nie S.An indentation model for the north and south China collision and the development of the Tan-Lu and Honam fault systems,eastern Asia.Tectonics,1993,12 (4) :801～813
[6] 刘光鼎,陈洁.中国前新生代残留盆地油气勘探难点分析及对策.地球物理学进展,2005,20(2) :273～275 Liu G D,Chen J.Analysis of difficulties in gas-petroleum prospecting in Chinese Pre-Cenozoic relic basin and the corresponding solutions.Progress in Geophysics (in Chinese),2005,20(2) :273～275
[7] 刘光鼎.我国油气资源勘探开发中存在的主要问题及对策.地球物理学进展,2005,20(1) :1～3 Liu G D.Main problems and countermeasures existed in exploring oil and gas resources in China.Progress in Geophysics (in Chinese),2005,20 (1) :1～3
[8] 徐亚,郝天珧,戴明刚等.渤海残留盆地分布综合地球物理研究.地球物理学报,2007,50(3) :868～881 Xu Y,Hao T Y,Dai M G,et al.Integrated geophysics research on distribution of residual basins of Bohai Sea.Chinese J.Geophys.(in Chinese),2007,50(3) :868～881
[9] 王巍,陈高,王家林等.苏北-南黄海盆地区域构造特征分析.地震学刊,1999,(1) :47～55 Wang W,Chen G,Wang J L.Analysis for regional structure characteristics of north Jiangsu-South Yellow Sea basin.Journal of Seismology (in Chinese),1999,(1) :47～55
[10] 翟明国,樊祺诚,张宏福.华北东部岩石圈减薄中的下地壳过程: 岩浆底侵、置换与拆沉作用.岩石学报,2005,21(6) :1509～1526 Zhai M G,Fan Q C,Zhang H F.Lower crust processes during the lithosphere thinning in eastern China:magma underplating,replacement and delamination.Acta Petrologica Sinica (in Chinese),2005,21(6) :1509～1526
[11] Li S Z,Kusky T M,Zhao G,et al.Mesozoic tectonics in the Eastern Block of the North China Craton:implications for subduction of the Pacific Plate beneath the Eurasian Plate.Geological Society,2007,280:171～180
[12] Ishiwatari A,Tsujimori T.Paleozoic ophiolites and blueschists in Japan and Russian Primorye in the tectonic framework of East Asia:A synthesis.The Island Arc,2003,12:190～206
[13] 万天丰.中朝与扬子板块的鉴别特征.地质论评,2001,47(1) :57～63 Wan T F.Distinctive Characteristics of Sino-Korean and Yangtze Plates.Geologicl Rewiew (in Chinese),2001,47(1) :57～63
[14] 郝天珧,刘建华,Suh Mancheol等.黄海及其邻区深部结构特点与地质演化.地球物理学报,2003,46(6) :803～808 Hao T Y,Liu J H,Suh M et al.Deep structure characteristics and geological evolution of the Yellow Sea and itsadjacent regions.Chinese J.Geophys.(in Chinese),2003,46(6) :803～808
[15] 万天丰,郝天珧.黄海新生代构造及油气勘探前景.现代地质,2009,23(3) :385～393 Wan T F,Hao T Y.Cenozoic Tectonics of the Yellow Sea and its oil-gas exploration.Geoscience (in Chinese),2009,23(3) :385～393
[16] 胥颐,李志伟,Kim Kwanghee等.黄海的地壳速度结构与中朝-扬子块体拼合边界.地球物理学报,2009,52(3) :646～652 Xu Y,Li Z W,Kim K,et al.Crustal velocity structure and collision boundary between the Sino-Korea and Yangtze blocks in the Yellow Sea.Chinese J.Geophys.(in Chinese),2009,52 (3) :646～652
[17] Chang O,Timothy K.The late permian to triassic Hongseong-Odesan collision belt in South Korea,and its tectonic correlation with China and Japan.International Geology Rewiew,2007,49(7) :636～657
[18] 姚永坚,冯志强,郝天珧等.对南黄海盆地构造层特征及含油气性的新认识.地学前缘,2008,15(6) :232～240 Yao Y J,Feng Z Q,Hao T Y,et al.A new understanding of the structural layers in the South Yellow Sea Basin and their hydrocarbon-bearing characteristics.Earth Science Frontiers(in Chinese),2008,15(6) :232～240
[19] 吴志强,陈建文.OBS在我国海洋深部地质调查中的应用现状和前景.海洋地质动态,2008,24(9) :35～42 Wu Z J,Chen J W.The status and prospect of OBS application in geological survey in deep oceans in China.Marine Geology Letters(in Chinese),2008,24(9) :35～42
[20] 刘光鼎,张丽莉,祝靓谊.试论复杂地质体的油气地震勘探.地球物理学进展,2006,21(3) :683～686 Liu G D,Zhang L L,Zhu L Y.Seismic prospecting for oil and gas on the complex geological bodies.Progress in Geophysics(in Chinese),2006,21 (3) :683～686
[21] http://topex.ucsd.edu
[22] Laske G,Masters G,Reif C.CRUST2． 0:A new global crustal model at 2×2 Degrees.http://igppweb.ucsd.edu/～gabi/crust2． html
[23] 姚长利,郑元满,张聿文.重磁异常三维物性反演随机子域法方法技术.地球物理学报,2007,50(5) :1576～1583 Yao C L,Zheng Y M,Zhang Y W.3-D gravity and magnetic inversion for physical properties using stochastic subspaces.Chinese J.Geophys.(in Chinese),2007,50(5) :1576～1583
[24] 郝天珧,Suh Maneheol,王谦身等,根据数据研究黄海周边断裂带在海区的延伸.地球物理学报,2002,45(3) :385～397 Hao T Y,Suh M,Wang Q S,et al.The study of extension of faults in Yellow Sea and adjacent region from gravity data.Chinese J.Geophys.(in Chinese),2002,45(3) :385～397
[25] 刘光鼎主编.中国海区及领域地质地球物理系列图集.北京:科学出版社,1992 Liu G D ed.Geophysical Series Maps in China Sea and Adjacent Regions (in Chinese).Beijing:Science Press,1992
[26] 李曙光,E.Jagoutz,肖益林等,大别山-苏鲁地体超高压变质年代学--Ⅰ.Sm-Nd同位素体系,中国科学D辑,1996,26(3) :249～257 Li S G,Jagoutz E,Xiao Y L,et al.Chronology of ultrahighpressure metamorphism in the Dabie Mountains and Su-Lu terrane:I.Sm-Nd isotope system.Science in China,Ser.D (in Chinese),1996,26(3) :249～257
[27] 张国伟,董云鹏,姚安平.造山带与造山作用及其研究的新起.西北地质,2001,34(1) :1～9 Zhang G W,Dong Y P,Yao A P.Review on the development of studies on the tectonic and orogen process of orogenic belt,and discussing on some new key problems.Northwestern Geology(in Chinese),2001,34(1) :1～9
[28] 万天丰.中国大地构造学纲要.北京:地质出版社,2004 Wan T F.China Tectonics Compendium(in Chinese).Beijing:Geological Publishing House,2004
[2] 蔡乾忠.黄海含油气盆地区域地质与大地构造环境.海洋地质动态,2002,18(11) :8～12 Cai Q Z.Regional geology and geotectonic environment of petroliferous basins in the Yellow Sea.Marine Geology Letters(in Chinese),2002,18(11) :8～12
[3] HaoT Y,Xu Y,Suh M,et al.East Marginal Fault of the Yellow Sea:a part of the conjunction zone between Sino-Korea and Yangtze Blocks9 Geological Society,2007,280:281～291
[4] 杨树春,胡圣标,蔡东升等.南黄海南部盆地地温场特征及热-构造演化.科学通报,2003,48(14) :1564～1569 Yang C S,Hu S B,Cai D S,et al.Geothermal field characteristics and heat-tectonic evolution of southern basin of South Yellow Sea.Chinese Science Bulletin,2003,48 (14) :1564～1569
[5] Yin A,Nie S.An indentation model for the north and south China collision and the development of the Tan-Lu and Honam fault systems,eastern Asia.Tectonics,1993,12 (4) :801～813
[6] 刘光鼎,陈洁.中国前新生代残留盆地油气勘探难点分析及对策.地球物理学进展,2005,20(2) :273～275 Liu G D,Chen J.Analysis of difficulties in gas-petroleum prospecting in Chinese Pre-Cenozoic relic basin and the corresponding solutions.Progress in Geophysics (in Chinese),2005,20(2) :273～275
[7] 刘光鼎.我国油气资源勘探开发中存在的主要问题及对策.地球物理学进展,2005,20(1) :1～3 Liu G D.Main problems and countermeasures existed in exploring oil and gas resources in China.Progress in Geophysics (in Chinese),2005,20 (1) :1～3
[8] 徐亚,郝天珧,戴明刚等.渤海残留盆地分布综合地球物理研究.地球物理学报,2007,50(3) :868～881 Xu Y,Hao T Y,Dai M G,et al.Integrated geophysics research on distribution of residual basins of Bohai Sea.Chinese J.Geophys.(in Chinese),2007,50(3) :868～881
[9] 王巍,陈高,王家林等.苏北-南黄海盆地区域构造特征分析.地震学刊,1999,(1) :47～55 Wang W,Chen G,Wang J L.Analysis for regional structure characteristics of north Jiangsu-South Yellow Sea basin.Journal of Seismology (in Chinese),1999,(1) :47～55
[10] 翟明国,樊祺诚,张宏福.华北东部岩石圈减薄中的下地壳过程: 岩浆底侵、置换与拆沉作用.岩石学报,2005,21(6) :1509～1526 Zhai M G,Fan Q C,Zhang H F.Lower crust processes during the lithosphere thinning in eastern China:magma underplating,replacement and delamination.Acta Petrologica Sinica (in Chinese),2005,21(6) :1509～1526
[11] Li S Z,Kusky T M,Zhao G,et al.Mesozoic tectonics in the Eastern Block of the North China Craton:implications for subduction of the Pacific Plate beneath the Eurasian Plate.Geological Society,2007,280:171～180
[12] Ishiwatari A,Tsujimori T.Paleozoic ophiolites and blueschists in Japan and Russian Primorye in the tectonic framework of East Asia:A synthesis.The Island Arc,2003,12:190～206
[13] 万天丰.中朝与扬子板块的鉴别特征.地质论评,2001,47(1) :57～63 Wan T F.Distinctive Characteristics of Sino-Korean and Yangtze Plates.Geologicl Rewiew (in Chinese),2001,47(1) :57～63
[14] 郝天珧,刘建华,Suh Mancheol等.黄海及其邻区深部结构特点与地质演化.地球物理学报,2003,46(6) :803～808 Hao T Y,Liu J H,Suh M et al.Deep structure characteristics and geological evolution of the Yellow Sea and itsadjacent regions.Chinese J.Geophys.(in Chinese),2003,46(6) :803～808
[15] 万天丰,郝天珧.黄海新生代构造及油气勘探前景.现代地质,2009,23(3) :385～393 Wan T F,Hao T Y.Cenozoic Tectonics of the Yellow Sea and its oil-gas exploration.Geoscience (in Chinese),2009,23(3) :385～393
[16] 胥颐,李志伟,Kim Kwanghee等.黄海的地壳速度结构与中朝-扬子块体拼合边界.地球物理学报,2009,52(3) :646～652 Xu Y,Li Z W,Kim K,et al.Crustal velocity structure and collision boundary between the Sino-Korea and Yangtze blocks in the Yellow Sea.Chinese J.Geophys.(in Chinese),2009,52 (3) :646～652
[17] Chang O,Timothy K.The late permian to triassic Hongseong-Odesan collision belt in South Korea,and its tectonic correlation with China and Japan.International Geology Rewiew,2007,49(7) :636～657
[18] 姚永坚,冯志强,郝天珧等.对南黄海盆地构造层特征及含油气性的新认识.地学前缘,2008,15(6) :232～240 Yao Y J,Feng Z Q,Hao T Y,et al.A new understanding of the structural layers in the South Yellow Sea Basin and their hydrocarbon-bearing characteristics.Earth Science Frontiers(in Chinese),2008,15(6) :232～240
[19] 吴志强,陈建文.OBS在我国海洋深部地质调查中的应用现状和前景.海洋地质动态,2008,24(9) :35～42 Wu Z J,Chen J W.The status and prospect of OBS application in geological survey in deep oceans in China.Marine Geology Letters(in Chinese),2008,24(9) :35～42
[20] 刘光鼎,张丽莉,祝靓谊.试论复杂地质体的油气地震勘探.地球物理学进展,2006,21(3) :683～686 Liu G D,Zhang L L,Zhu L Y.Seismic prospecting for oil and gas on the complex geological bodies.Progress in Geophysics(in Chinese),2006,21 (3) :683～686
[21] http://topex.ucsd.edu
[22] Laske G,Masters G,Reif C.CRUST2． 0:A new global crustal model at 2×2 Degrees.http://igppweb.ucsd.edu/～gabi/crust2． html
[23] 姚长利,郑元满,张聿文.重磁异常三维物性反演随机子域法方法技术.地球物理学报,2007,50(5) :1576～1583 Yao C L,Zheng Y M,Zhang Y W.3-D gravity and magnetic inversion for physical properties using stochastic subspaces.Chinese J.Geophys.(in Chinese),2007,50(5) :1576～1583
[24] 郝天珧,Suh Maneheol,王谦身等,根据数据研究黄海周边断裂带在海区的延伸.地球物理学报,2002,45(3) :385～397 Hao T Y,Suh M,Wang Q S,et al.The study of extension of faults in Yellow Sea and adjacent region from gravity data.Chinese J.Geophys.(in Chinese),2002,45(3) :385～397
[25] 刘光鼎主编.中国海区及领域地质地球物理系列图集.北京:科学出版社,1992 Liu G D ed.Geophysical Series Maps in China Sea and Adjacent Regions (in Chinese).Beijing:Science Press,1992
[26] 李曙光,E.Jagoutz,肖益林等,大别山-苏鲁地体超高压变质年代学--Ⅰ.Sm-Nd同位素体系,中国科学D辑,1996,26(3) :249～257 Li S G,Jagoutz E,Xiao Y L,et al.Chronology of ultrahighpressure metamorphism in the Dabie Mountains and Su-Lu terrane:I.Sm-Nd isotope system.Science in China,Ser.D (in Chinese),1996,26(3) :249～257
[27] 张国伟,董云鹏,姚安平.造山带与造山作用及其研究的新起.西北地质,2001,34(1) :1～9 Zhang G W,Dong Y P,Yao A P.Review on the development of studies on the tectonic and orogen process of orogenic belt,and discussing on some new key problems.Northwestern Geology(in Chinese),2001,34(1) :1～9
[28] 万天丰.中国大地构造学纲要.北京:地质出版社,2004 Wan T F.China Tectonics Compendium(in Chinese).Beijing:Geological Publishing House,2004
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