下扬子地区中-新生代的挤压变形与伸展改造及其油气勘探意义
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摘要
以地表变形特征、地层厚度变化和地震剖面为约束,构建了贯穿下扬子地区主要构造单元的三条地质大剖面。剖面展示了研究区早期褶皱逆冲、晚期伸展断陷的构造格局,并揭示了变形的空间差异。通过对褶皱卷入的层位、断层与地层的切割关系及不整合类型和发育特征的梳理,得出研究区北侧的褶皱逆冲主要形成于中-晚三叠世,南侧的褶皱逆冲主要形成于中-晚侏罗世。两侧的挤压构造在晚白垩世开始都经历了强烈的拉张作用,北侧的断陷一直持续到古近纪,新近纪以拗陷为主,而南侧古近纪断陷规模较小,新近纪拗陷不发育。苏州-无锡地区的下古生界受后期改造作用较弱,是油气勘探的有利地区。
Constrained by structural styles in outcrops,thickness of strata and seismic sections, three regional cross sections were constructed across the main structural units in Lower Yangtze region. These cross sections display the superimposition of early compressional and late extensional tectonic features, and also reveal some spatial differences in the deformation styles. According to the strata involved in the deformation, cross-cutting relationships, the types and distribution of unconformities, we confirm the thrusts and folds in the north of the region were formed during Middle-Late Triassic,while in the Middle-Late Jurassic for those in the south; intensive rifting occurred in the whole region during Late Cretaceous and continued into Paleogene in the north; extensive depression has developed in the north since Neogene, while it took place only during Quaternary in the south. The Lower Paleozoic of Suzhou-Wuxi area is favorable for hydrocarbon exploration as it was not destructed by rifting.
Constrained by structural styles in outcrops,thickness of strata and seismic sections, three regional cross sections were constructed across the main structural units in Lower Yangtze region. These cross sections display the superimposition of early compressional and late extensional tectonic features, and also reveal some spatial differences in the deformation styles. According to the strata involved in the deformation, cross-cutting relationships, the types and distribution of unconformities, we confirm the thrusts and folds in the north of the region were formed during Middle-Late Triassic,while in the Middle-Late Jurassic for those in the south; intensive rifting occurred in the whole region during Late Cretaceous and continued into Paleogene in the north; extensive depression has developed in the north since Neogene, while it took place only during Quaternary in the south. The Lower Paleozoic of Suzhou-Wuxi area is favorable for hydrocarbon exploration as it was not destructed by rifting.
引文
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Bureau of Geology and Mineral Resources of Anhui Province.1987.Regional Geology of Anhui Province.Beijing:Geological PublishingHouse,1-721(in Chinese)
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Chen AD.2001.Dynamic mechanism of formation of dustpansubsidence,northern Jiangsu.Geological Journal of ChinaUniversities,7(4):408-418(in Chinese with English abstract)
Guo NF and Wang WY.1996.Mesozoic magmatic activity and Middle-Cenozoic basins of the Lower Reaches of Yangtze River.Geology ofJiangsu Province,20(3):150-155(in Chinese with Englishabstract)
Guo TL.2004.Superimpostion and modification of the Mesozoic andPaleozoic basins and multi-stages of hydrocarbon accumulation withmultiple source rocks in Lower Yangtze area.Petroleum Geology&Exploration,26(4):319-323(in Chinese with English abstract)
Han KC,Chen YZ,Chen SS et al.1985.Nappe structure in theMaoshan area and its geological significance.Geotectonica etMetallogenia,9(3):57-68(in Chinese with English abstract)
Huang ZJ,Shen XZ and Sun Y.1987.Predicting and interpreting blindthrusts and decollements.Journal of Nanjing University,23(3):493-502(in Chinese with English abstract)
Li DQ.1997.Analysis of Subei and Lower Yangtze basin.In:Zhang YC(ed.).Prototype Analysis of Petroliferous Basins in China.Nanjing:Nanjing University Press,358-377(in Chinese)
Li SZ,Li AL,Fan DJ et al.2009.Mesozoic structure deformation ofChaobei region,Anhui Province and its tectonic setting.ActaGeologica Sinica,83(2):208-217(in Chinese with Englishabstract)
Li ZX,Li XH,Wartho JA et al.2010.Magmaticand metamorphic eventsduring the Early Paleozoic Wuyi-Yunkai Orogeny,southeastern SouthChina:New age constraints and P-T conditions.GSA Bull.,122(5-6):772-793
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Mei LF,Dai SW,Shen CB et al.2008.Formation and disintegration ofMesozoic-Cenozoic intra-continental ramp zone in Middle and LowerYangtze region.Geological Science and Technology Information,27(4):7-14(in Chinese with English abstract)
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Tu YJ,Liu XP,Wang XY and Wu MA.2001.Study on the Chuzhou-Chaohu foreland fold-thrust zone at the northern margin of the LowerYangtze landmass.Geotectonica et Metallogenia,25(1):9-26(inChinese with English abstract)
Wu XY,Zeng HD,Jin XG et al.2000.Prospective enlightment obtainedfrom drilling result of SK1in Sunan area of Lower Yangtze.Petroleum Exploration and Development,27(5):5-9(in Chinesewith English abstract)
Xiong Z.2010.Researches on seismotectonic environment in Nanjingarea.Ph.D.Dissertation.Beijing:Institute of Geophysics,CEA,1-129(in Chinese with English summary)
Yan JZ,Yu K,Zhao SB,Yao BP and Lu HF.1999.The Mesozoicforeland basins in the Lower Yangtze area.Experimental PetroleumGeology,21(2):95-99(in Chinese with English abstract)
Yao BP,Lu H and G NF.1999.The multil stage structure frame ofLower Yangtze basin evolution and its significance in petroleumgeology.Petroleum Exploration and Development,26(4):10-13(in Chinese with English abstract)
Zhang H,Zhou LQ and Li JQ.2006.Hydrocarbon exploration potentialanalysis of the lower marine formation assemblage in the LowerYangtze region.Petroleum Geology&Experiment,28(1):15-20(in Chinese with English abstract)
Zhang KJ and Shi YS.1993.Thin-skinned tectonics of the northern fringeof Anhui Lower Yangtze region.Journal of Nanjing University,29(3):468-476(in Chinese with English abstract)
Zhang N.2009.Research on stratigraphic sequence of the Jurassic-Cretaceous lava in Jiangsu Province.Journal of Stratigraphy,33(1):91-97(in Chinese with English abstract)
Zhang Q,Jian P,Liu DY et al.2003.Meaning of SHRIMP dating onzircon from Ningwu volcanic rocks.Science in China(Series D),33(4):309-314(in Chinese)
Zhang Q,Zhu G,Liu GS et al.2008.Sinistral transpressive deformationin the northern part of Zhangbaling uplift in the Tan-Lu fault zoneand its40Ar/39Ar dating.Earth Science Frontiers,15(3):234-249(in Chinese with English abstract)
Zhang YH.1991.Huangqiao Transform event in tectonic evolution ofLower Yangtze region and the Meso-Paleozoic hydrocarbonexploration target.Oil&Gas Geology,12(4):439-448(inChinese with English abstract)
Zhang YQ,Xu XB,Jia D et al.2009.Deformation record of the changefrom Indosinian collision-related tectonic system to Yanshaniansubduction-related tectonic system in South China during the EarlyMesozoic.Earth Science Frontiers,16(1):234-247(in Chinesewith English abstract)
Zhu G,Xu XW,Liu GS et al.1998.Tectonic control on thedevelopment of foreland basin along the Yangtze River in the LowerYangtze River region.Geological Review,44(2):120-129(inChinese with English abstract)
Zhu G,Wang YS,Wang DX et al.2006.Constraints of forelandsedimentation and deformation on synorogenic motion of the Tan-Lufault zone.Chinese Journal of Geology,41(1):102-121(inChinese with English abstract)
安徽省地质矿产局.1987.安徽省区域地质志.北京:地质出版社,1-721
陈安定.2001.苏北箕状断陷形成的动力学机制.高校地质学报,7(4):408-418
郭念发,王武元.1996.长江下游中生代岩浆活动与中新生代盆地.江苏地质,20(3):150-155
郭彤楼.2004.下扬子地区中古生界叠加改造特征与多源多期成藏.石油实验地质,26(4):319-323
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林水龙.1982.宁芜、漂水地区的上侏罗统西横山组.地层学杂志,6(4):271-280
刘宝珺,许效松.1994.中国南方岩相古地理图集(震旦纪-三叠纪).北京:科学出版社,1-188
梅廉夫,戴少武,沈传波等.2008.中、下扬子区中、新生代陆内对冲带的形成及解体.地质科技情报,27(4):7-14
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吴向阳,曾海东,金兴国等.2000.苏南SK1井钻探结果对下扬子区油气勘探的启示.石油勘探与开发,27(5):5-9
熊振.2010.南京地区地震构造环境研究.博士学位论文.北京:中国地震局地球物理研究所,1-129
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张淮,周荔青,李建青.2006.下扬子地区海相下组合油气勘探潜力分析.石油实验地质,28(1):15-20
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Bureau of Geology and Mineral Resources of Anhui Province.1987.Regional Geology of Anhui Province.Beijing:Geological PublishingHouse,1-721(in Chinese)
Bureau of Geology and Mineral Resources of Jiangsu Province(BGMRJ).1989.Memoir on Geology of Ningzhen Mountains.Nanjing:Scienceand Technology Publishing House of Jiangsu,1-505(in Chinese)
Chen AD.2001.Dynamic mechanism of formation of dustpansubsidence,northern Jiangsu.Geological Journal of ChinaUniversities,7(4):408-418(in Chinese with English abstract)
Guo NF and Wang WY.1996.Mesozoic magmatic activity and Middle-Cenozoic basins of the Lower Reaches of Yangtze River.Geology ofJiangsu Province,20(3):150-155(in Chinese with Englishabstract)
Guo TL.2004.Superimpostion and modification of the Mesozoic andPaleozoic basins and multi-stages of hydrocarbon accumulation withmultiple source rocks in Lower Yangtze area.Petroleum Geology&Exploration,26(4):319-323(in Chinese with English abstract)
Han KC,Chen YZ,Chen SS et al.1985.Nappe structure in theMaoshan area and its geological significance.Geotectonica etMetallogenia,9(3):57-68(in Chinese with English abstract)
Huang ZJ,Shen XZ and Sun Y.1987.Predicting and interpreting blindthrusts and decollements.Journal of Nanjing University,23(3):493-502(in Chinese with English abstract)
Li DQ.1997.Analysis of Subei and Lower Yangtze basin.In:Zhang YC(ed.).Prototype Analysis of Petroliferous Basins in China.Nanjing:Nanjing University Press,358-377(in Chinese)
Li SZ,Li AL,Fan DJ et al.2009.Mesozoic structure deformation ofChaobei region,Anhui Province and its tectonic setting.ActaGeologica Sinica,83(2):208-217(in Chinese with Englishabstract)
Li ZX,Li XH,Wartho JA et al.2010.Magmaticand metamorphic eventsduring the Early Paleozoic Wuyi-Yunkai Orogeny,southeastern SouthChina:New age constraints and P-T conditions.GSA Bull.,122(5-6):772-793
Lin SL.1982.The Xihengshan Formation of Upper Jurassic in Ningwuand Lishui areas.Journal of Stratigraphy,6(4):271-280(inChinese)
Liu BJ and Xu XS.1994.Atlas of Lithofacies and Palaeogeography ofSouth China(Sinian to Triassic).Beijing:Science Press,1-188(in Chinese)
Mei LF,Dai SW,Shen CB et al.2008.Formation and disintegration ofMesozoic-Cenozoic intra-continental ramp zone in Middle and LowerYangtze region.Geological Science and Technology Information,27(4):7-14(in Chinese with English abstract)
Qiu XM,Liu YR and Fu Q.2006.Stratigraphy Sequence and SedimentEvolution of Upper Cretaceous to Tertiary in Subei basin.Beijing:Geological Publishing House,1-154(in Chinese)
Mercier JL,Hou Mj,Vergély P and Wang YM.2007.Structural andstratigraphical constraints on the kinematics history of the SouthernTan-Lu Fault Zone during the Mesozoic in Anhui Province,China.Tectonophysics,439:33-66
Redaction Group for Petroleum Geology of Oil and Gas Region in Jiangsu,Zhejiang,Anhui and Fujian Provinces.1992.Petroleum Geology ofChina(Vol.8),Oil and Gas Region in Jiangsu,Zhejiang,Anhuiand Fujian Provinces.Beijing:Petroleum Industry Press,1-636(in Chinese)
Ren JY,Tamaki K,Li ST and Zhang JX.2002.Late Mesozoic andCenozoic rifting and its dynamic setting in eastern China and adjacentareas.Tectonophysics,344:175-105
Shu LS,Wang B,Wang LS and He GY.2005.Analysis of North Jiangsuprototype basin from Late Cretaceous to Neogene.Geological Journalof China Universities,11(4):534-543(in Chinese with Englishabstract)
Tu YJ,Liu XP,Wang XY and Wu MA.2001.Study on the Chuzhou-Chaohu foreland fold-thrust zone at the northern margin of the LowerYangtze landmass.Geotectonica et Metallogenia,25(1):9-26(inChinese with English abstract)
Wu XY,Zeng HD,Jin XG et al.2000.Prospective enlightment obtainedfrom drilling result of SK1in Sunan area of Lower Yangtze.Petroleum Exploration and Development,27(5):5-9(in Chinesewith English abstract)
Xiong Z.2010.Researches on seismotectonic environment in Nanjingarea.Ph.D.Dissertation.Beijing:Institute of Geophysics,CEA,1-129(in Chinese with English summary)
Yan JZ,Yu K,Zhao SB,Yao BP and Lu HF.1999.The Mesozoicforeland basins in the Lower Yangtze area.Experimental PetroleumGeology,21(2):95-99(in Chinese with English abstract)
Yao BP,Lu H and G NF.1999.The multil stage structure frame ofLower Yangtze basin evolution and its significance in petroleumgeology.Petroleum Exploration and Development,26(4):10-13(in Chinese with English abstract)
Zhang H,Zhou LQ and Li JQ.2006.Hydrocarbon exploration potentialanalysis of the lower marine formation assemblage in the LowerYangtze region.Petroleum Geology&Experiment,28(1):15-20(in Chinese with English abstract)
Zhang KJ and Shi YS.1993.Thin-skinned tectonics of the northern fringeof Anhui Lower Yangtze region.Journal of Nanjing University,29(3):468-476(in Chinese with English abstract)
Zhang N.2009.Research on stratigraphic sequence of the Jurassic-Cretaceous lava in Jiangsu Province.Journal of Stratigraphy,33(1):91-97(in Chinese with English abstract)
Zhang Q,Jian P,Liu DY et al.2003.Meaning of SHRIMP dating onzircon from Ningwu volcanic rocks.Science in China(Series D),33(4):309-314(in Chinese)
Zhang Q,Zhu G,Liu GS et al.2008.Sinistral transpressive deformationin the northern part of Zhangbaling uplift in the Tan-Lu fault zoneand its40Ar/39Ar dating.Earth Science Frontiers,15(3):234-249(in Chinese with English abstract)
Zhang YH.1991.Huangqiao Transform event in tectonic evolution ofLower Yangtze region and the Meso-Paleozoic hydrocarbonexploration target.Oil&Gas Geology,12(4):439-448(inChinese with English abstract)
Zhang YQ,Xu XB,Jia D et al.2009.Deformation record of the changefrom Indosinian collision-related tectonic system to Yanshaniansubduction-related tectonic system in South China during the EarlyMesozoic.Earth Science Frontiers,16(1):234-247(in Chinesewith English abstract)
Zhu G,Xu XW,Liu GS et al.1998.Tectonic control on thedevelopment of foreland basin along the Yangtze River in the LowerYangtze River region.Geological Review,44(2):120-129(inChinese with English abstract)
Zhu G,Wang YS,Wang DX et al.2006.Constraints of forelandsedimentation and deformation on synorogenic motion of the Tan-Lufault zone.Chinese Journal of Geology,41(1):102-121(inChinese with English abstract)
安徽省地质矿产局.1987.安徽省区域地质志.北京:地质出版社,1-721
陈安定.2001.苏北箕状断陷形成的动力学机制.高校地质学报,7(4):408-418
郭念发,王武元.1996.长江下游中生代岩浆活动与中新生代盆地.江苏地质,20(3):150-155
郭彤楼.2004.下扬子地区中古生界叠加改造特征与多源多期成藏.石油实验地质,26(4):319-323
韩克从,陈玉忠,陈思松等.1985.茅山地区的推覆构造及其地质意义.大地构造与成矿学,9(3):57-68
黄钟瑾,沈修志,孙岩.1987.对隐伏逆冲断层和滑脱构造的预测和分析.南京大学学报,23(3):493-502
江苏省地质矿产局.1989.宁镇山脉地质志.南京:江苏科学技术出版社,1-505
李道琪.1997.苏北及下扬子区盆地分析.见:张渝昌编.中国含油气盆地原型分析.南京:南京大学出版社,358-377
李三忠,李安龙,范德等.2009.安徽巢北地区的中生代构造变形及其大地构造背景.地质学报,83(2):208-217
林水龙.1982.宁芜、漂水地区的上侏罗统西横山组.地层学杂志,6(4):271-280
刘宝珺,许效松.1994.中国南方岩相古地理图集(震旦纪-三叠纪).北京:科学出版社,1-188
梅廉夫,戴少武,沈传波等.2008.中、下扬子区中、新生代陆内对冲带的形成及解体.地质科技情报,27(4):7-14
邱旭明,刘玉瑞,傅强.2006.苏北盆地上白垩统-第三系层序地层与沉积演化.北京:地质出版社,1-154
舒良树,王博,王良书,何光玉.2005.苏北盆地晚白至世-新近纪原型盆地分析.高校地质学报,11(4):534-543
苏浙皖闽油气区石油地质志编写组.1992.中国石油地质志(卷8):苏浙皖闽油气区.北京:石油工业出版社,1-636
涂荫玖,刘湘培,汪祥云,吴明安.2001.下扬子北缘滁州-巢湖前陆褶皱冲断带研究.大地构造与成矿学,25(1):9-26
吴向阳,曾海东,金兴国等.2000.苏南SK1井钻探结果对下扬子区油气勘探的启示.石油勘探与开发,27(5):5-9
熊振.2010.南京地区地震构造环境研究.博士学位论文.北京:中国地震局地球物理研究所,1-129
闫吉柱,俞凯,赵曙白,姚柏平,卢华复.1999.下扬子区中生代前陆盆地.石油实验地质,21(2):95-99
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