合肥盆地白垩纪层序地层格架、沉积体系配置及演化
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摘要
合肥盆地的白垩系是叠置在侏罗纪前陆盆地上的断陷构造层,其层序地层及沉积演化研究是油气勘探的重要环节。综合应用横跨盆地二维地震剖面、测井、岩芯、露头及其它分析化验资料,对合肥盆地白垩纪的地层进行了层序地层界面的识别、划分,建立了该期地层格架。共划分出一级层序:构造层序界面(构造层序)界面2个:SBK1(TK1)、SBE(TE);二级层序(层序组)界面1个:SBK2(TK2);三级层序(层序)界面4个:SBK11(TK11)、SBK12(TK12)、SBK13(TK13)、SBK21(TK21)。在此基础上建立了合肥盆地白垩纪层序地层格架及沉积演化阶段:早白垩世层序组(包括朱巷组和响导铺组层序组):为西缓超东陡深的不对称箕状断陷格局,西南部和北西部各发育一个大型冲积扇—冲积平原—三角洲平原带,西南部冲积扇—冲积平原大部分已经被剥蚀殆尽;东部和东北部发育一系列扇三角洲构成扇三角洲平原(裙),两者之间为滨浅湖—半深湖—深湖。晚白垩世层序组(张桥组层序组):北断南超的格局占主导,早白垩世时期的大型三角洲体系域已经不复存在,代之而起的是北部发育较大规模的扇三角洲平原;而南部或西南部冲积扇—冲积平原—三角洲平原带已经大为缩小到信阳—舒城断裂北缘。
According to seismic, well-logs, outcrop & cores data, we identified sequence stratigraphy boundarys. Cretaceous-Paleogene strata can be recognized as 3 first-order sequence, 1 second-order sequences and 4 third-order sequences. Based on the principle of base level cycles,the author distinguished & established sequence stratigraphy framework, sedimentary system setting & evolution in Cretaceous-Paleogene.That is: 1) Early Cretaceous sequence series(Zhuxiang & Xiangdaopu Formations): a semi-graben basin which onlapped in the west & faulted in the east, developed great scale alluvial fan-alluvial plain-delta plain on the western-northern & western-southern respecially. On eastern & eastern-northern growth aseries fan-deltas & shore semideep-deep lacustrine. 2) Late Cretaceous sequence series(Zhangqiao Formation): similar with Early Cretaceous basically,buta semi-graben basin which onlapped in the south & faulted in the north more salience.3) Paleogene Sequence series(Dingyuan Formation): The north of Feizhong fault uplift since tectonic movement so that bisect the basin, Dingyuan depression on the north and Shucheng depression on the south.
According to seismic, well-logs, outcrop & cores data, we identified sequence stratigraphy boundarys. Cretaceous-Paleogene strata can be recognized as 3 first-order sequence, 1 second-order sequences and 4 third-order sequences. Based on the principle of base level cycles,the author distinguished & established sequence stratigraphy framework, sedimentary system setting & evolution in Cretaceous-Paleogene.That is: 1) Early Cretaceous sequence series(Zhuxiang & Xiangdaopu Formations): a semi-graben basin which onlapped in the west & faulted in the east, developed great scale alluvial fan-alluvial plain-delta plain on the western-northern & western-southern respecially. On eastern & eastern-northern growth aseries fan-deltas & shore semideep-deep lacustrine. 2) Late Cretaceous sequence series(Zhangqiao Formation): similar with Early Cretaceous basically,buta semi-graben basin which onlapped in the south & faulted in the north more salience.3) Paleogene Sequence series(Dingyuan Formation): The north of Feizhong fault uplift since tectonic movement so that bisect the basin, Dingyuan depression on the north and Shucheng depression on the south.
引文
1李忠,李任伟,孙枢,等.合肥盆地南部侏罗系砂岩碎屑组分及其物源构造属性[J].岩石学报,1999,15(3):438-445[Li Zhong,Li Re-nwei,Sun Shu,et al.Detrital composition and provenance tectonic at-tributes of Jurassic sandstones,south Hefei basin[J].Acta Petrologica Sinica,1999,15(3):438-445]
2周进高,赵宗举,邓红应.合肥盆地构造演化及含油气性分析[J].地质学报,1999,73(1):15-24[Zhou Jingao,Zhao Zongju,Deng Hongying.Tectonic evolution of the Hefei Basin and analysis of its pe-troleum potential[J].Acta Geologica Sinica,1999,73(1):15-24]
3赵宗举,朱琰.合肥盆地构造演化及油气系统分析[J].石油勘探与开发,2001,28(4):8-13[Zhao Zongju,Zhu Yan.The structure e-volution and the petroleumsystemin Hefei Basin[J].PetroleumExplo-ration and Development,2001,28(4):8-13]
4陈海云,舒良树,张云银,等.合肥盆地中新生代构造演化[J].高校地质学报,2004,10(2):250-256)[Chen Haiyun,Shu Liangshu,Zhang Yunyin,et al.Mesozoic-Cenozoic tectonic evolution of the Hefei Basin[J].Geological Journal of China Universities,2004,10(2):250-256]
5刘国生,朱光,牛漫兰,等.合肥盆地对郯庐断裂带同造山走滑活动的沉积响应[J].合肥工业大学学报(自然科学版),2005,28(10):1233-1237[Liu Guosheng,Zhu Guang,Niu Manlan,et al.Depositional response of the Hefei Basin to the synorogenic strike-slip activities on the Tan-Lu fault zone[J].Journal of Hefei University of Technology(Natural Science),2005,28(10):1233-1237]
6李任伟,孟庆任,李双应.大别山及邻区侏罗和石炭纪时期盆山耦合:来自沉积记录的认识[J].岩石学报,2005,21(4):1133-1143[Li Renwei,Meng Qingren,Li Shuangying.Coupling of the Jurassic and Carboniferous basins with the origins in the Dabie shan and adja-cent area,constraints from sedimentary records[J].Acta Petrologica Sinica,2005,21(4):1133-1143]
7朱光,王勇生,王道轩,等.前陆沉积与变形对郯庐断裂带同造山运动的制约[J].地质科学,2006a,41(1):102-121[Zhu Guang,Wang Yongsheng,Wang Daoxuan,et al.Constraints of foreland sedi-mentation and deformation on synorogenic motion of the Tan-Lu Fault Zone[J].Chinese Journal of Geology,2006,41(1):102-121]
8刘国生,朱光,王道宣.郯庐断裂带张八岭隆起段走滑运动与合肥盆地的沉积响应[J].沉积学报,2002,20(2):267-273[Liu Guosh-eng,Zhu Guang,Wang Daoxuan,et al.Strike-slip movement on the Zhangbaling Uplift segment of the Tan-Lu Fault and the depositional re-sponse in the Hefei Basin[J].Acta Sedimentologica Sinica,2002,20(2):267-273]
9刘国生,朱光,牛漫兰,等.合肥盆地东部中—新生代的演化及其对郯庐断裂带活动的响应[J].地质科学,2006,41(2):256-269[Liu Guosheng,Zhu Guang,Niu Manlan,et al.Meso-cenozoic evolution of the Hefei Basin(eastern part)and its response to activities of the Tan-lu fault zone[J].Chinese Journal of Geology(Scientia Geologica Sini-ca),2006,41(2):256-269]
10任凤楼.合肥盆地中生界沉积物物源分析及构造意义[J].地质科技情报,2008,27(2):25-34[Ren Fenglou.Sedliments provenanceanalysis and structure significance of Hefei Basin in Mesozoic[J].Ge-ological Science and Technology Information,2008,27(2):25-34].
11易万霞,赵宗举,李学田,等.早白垩世合肥盆地性质及含油气性分析[J].大地构造与成矿学,2003,27(1):64-71[Yi Wanxia,Zhao Zongju,Li Xuetian,et al.Nature of the Hefei Basin in Early Cretaceous and analysis of its petroleum potential[J].Geotectonica et Metallogenia,2003,27(1):64-71]
12李云平,吴时国,韩文功,等.合肥盆地和郯庐断裂带南段深部地球物理特征研究[J].地球物理学报,2006,49(1):115-122[LI Yunping,Wu Shiguo,Han Wengong,et al.Astudy on geophys-ical features of deep structures of the Hefei Basin and the southern Tan-Lu fault zone[J].Chinese Journal of Geophysics,2006,49(1):115-122]
13曹忠祥.合肥盆地及其东缘郯庐断裂带的伸展活动起始年代、断陷格局及深部动力学[J].南京大学学报(自然科学版),2007,43(5):34-43[Cao Zhongxiang.Beginning times,fault framework and deep dynamics of the extensional activities in the Hefei basin and Tan-Lu fault zone[J].Journal of Nanjing University(natural science),2007,43(5)34-43]
14王利,周祖翼,朱毅杰.合肥盆地中新生代三维埋藏史分析[J].高校地质学报,2007,13(1):105-111[Wang Li,Zhou Zuyi,Zhu Yijie.3-D burial history analysis of Hefei Basin since Mesozoic[J].Geological Journal of China Universities,2007,13(1):105-111]
15许长海,周祖翼,P.Van Den Haute,等.合肥盆地构造演化的磷灰石裂变径迹分析[J].石油学报,2007,27(6):5-12[Xu Changhai,Zhou Zuyi,P.Van Den Haute,et al.Apatite fission-track thermo-chronology of tectonic evolution in Hefei Basin[J].Acta Petrolei Sini-ca,2007,27(6):5-12]
16朱光,牛漫兰,刘国生,等.郯庐断裂带早白垩世走滑运动中的构造、岩浆、沉积事件[J].地质学报,2002,76(3):325-334[Zhu Guang,Niu Manlan,Liu Guosheng,et al.Structural,magmatic and sedimentary events of the Tan-Lu fault belt during its early Cretaceous strike-slip movement[J].Acta Geologica Sinica,2002,76(3):325-334]
17陈建平,钟建华,饶孟余,等.合肥盆地中、新生代沉积相初步研究[J].沉积与特提斯地质,2003,23(2):48-54[Chen JianPing,Zhong Jianhua,Rao Mengyu,et al.Mesozoic and Cenozoic sedimenta-ry facies in the Hefei Basin[J].Sedimentary Geology and Tethyan Geology,2003,23(2):48-54]
18吴跃东,邵莉.安徽合肥盆地东北部白垩纪层序地层学分析[J].地层学杂志,2002,26(2):111-119[Wu Yuedong,Shao Li.Creta-ceous sequence stratigraphic analysis of the northeastern Hefei Basin[J].Journal of Stratigraphy,2002,26(2):111-119]
19邓宏文,王洪亮.美国层序地层研究的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89-97[Deng Hong-wen,Wang Hongliang.Anewschool thought in sequence stratigraph-ic studies in US:high-resolution sequence stratigraphy[J].Oil&Gas Geology,1995,16(2):89-97]
20邓宏文,王红亮.高分辨率层序地层学——原理及应用[M].北京:地质出版社,2002[Deng Hongwen,Wang Hongliang.High-reso-lution Sequence Stratigraphy:Principles and Application[M].Bei-jing:Geological Publishing House,2002]
21Vail P R.Sequence stratigraphy work book,fundamentals of sequence stratigraphy[C]∥AAPG Annual Convention Short Course:Sequence Stratigraphy Interpretation of Seismic Well and Outcrop Data,Hous-ton,1988
22Mitchum R M,Van J C.High frequency sequence and their stacking patterns:sequence stratigraphy evidence of high frequentcy eustatic cycle[J].Sedimentary Geology,1991,70(2):135-144
23Van J C.Mitchum R M,Campion K M,et al.Methods in Explora-tion Series,No7[C].Tulsa:AAPG,1990
2周进高,赵宗举,邓红应.合肥盆地构造演化及含油气性分析[J].地质学报,1999,73(1):15-24[Zhou Jingao,Zhao Zongju,Deng Hongying.Tectonic evolution of the Hefei Basin and analysis of its pe-troleum potential[J].Acta Geologica Sinica,1999,73(1):15-24]
3赵宗举,朱琰.合肥盆地构造演化及油气系统分析[J].石油勘探与开发,2001,28(4):8-13[Zhao Zongju,Zhu Yan.The structure e-volution and the petroleumsystemin Hefei Basin[J].PetroleumExplo-ration and Development,2001,28(4):8-13]
4陈海云,舒良树,张云银,等.合肥盆地中新生代构造演化[J].高校地质学报,2004,10(2):250-256)[Chen Haiyun,Shu Liangshu,Zhang Yunyin,et al.Mesozoic-Cenozoic tectonic evolution of the Hefei Basin[J].Geological Journal of China Universities,2004,10(2):250-256]
5刘国生,朱光,牛漫兰,等.合肥盆地对郯庐断裂带同造山走滑活动的沉积响应[J].合肥工业大学学报(自然科学版),2005,28(10):1233-1237[Liu Guosheng,Zhu Guang,Niu Manlan,et al.Depositional response of the Hefei Basin to the synorogenic strike-slip activities on the Tan-Lu fault zone[J].Journal of Hefei University of Technology(Natural Science),2005,28(10):1233-1237]
6李任伟,孟庆任,李双应.大别山及邻区侏罗和石炭纪时期盆山耦合:来自沉积记录的认识[J].岩石学报,2005,21(4):1133-1143[Li Renwei,Meng Qingren,Li Shuangying.Coupling of the Jurassic and Carboniferous basins with the origins in the Dabie shan and adja-cent area,constraints from sedimentary records[J].Acta Petrologica Sinica,2005,21(4):1133-1143]
7朱光,王勇生,王道轩,等.前陆沉积与变形对郯庐断裂带同造山运动的制约[J].地质科学,2006a,41(1):102-121[Zhu Guang,Wang Yongsheng,Wang Daoxuan,et al.Constraints of foreland sedi-mentation and deformation on synorogenic motion of the Tan-Lu Fault Zone[J].Chinese Journal of Geology,2006,41(1):102-121]
8刘国生,朱光,王道宣.郯庐断裂带张八岭隆起段走滑运动与合肥盆地的沉积响应[J].沉积学报,2002,20(2):267-273[Liu Guosh-eng,Zhu Guang,Wang Daoxuan,et al.Strike-slip movement on the Zhangbaling Uplift segment of the Tan-Lu Fault and the depositional re-sponse in the Hefei Basin[J].Acta Sedimentologica Sinica,2002,20(2):267-273]
9刘国生,朱光,牛漫兰,等.合肥盆地东部中—新生代的演化及其对郯庐断裂带活动的响应[J].地质科学,2006,41(2):256-269[Liu Guosheng,Zhu Guang,Niu Manlan,et al.Meso-cenozoic evolution of the Hefei Basin(eastern part)and its response to activities of the Tan-lu fault zone[J].Chinese Journal of Geology(Scientia Geologica Sini-ca),2006,41(2):256-269]
10任凤楼.合肥盆地中生界沉积物物源分析及构造意义[J].地质科技情报,2008,27(2):25-34[Ren Fenglou.Sedliments provenanceanalysis and structure significance of Hefei Basin in Mesozoic[J].Ge-ological Science and Technology Information,2008,27(2):25-34].
11易万霞,赵宗举,李学田,等.早白垩世合肥盆地性质及含油气性分析[J].大地构造与成矿学,2003,27(1):64-71[Yi Wanxia,Zhao Zongju,Li Xuetian,et al.Nature of the Hefei Basin in Early Cretaceous and analysis of its petroleum potential[J].Geotectonica et Metallogenia,2003,27(1):64-71]
12李云平,吴时国,韩文功,等.合肥盆地和郯庐断裂带南段深部地球物理特征研究[J].地球物理学报,2006,49(1):115-122[LI Yunping,Wu Shiguo,Han Wengong,et al.Astudy on geophys-ical features of deep structures of the Hefei Basin and the southern Tan-Lu fault zone[J].Chinese Journal of Geophysics,2006,49(1):115-122]
13曹忠祥.合肥盆地及其东缘郯庐断裂带的伸展活动起始年代、断陷格局及深部动力学[J].南京大学学报(自然科学版),2007,43(5):34-43[Cao Zhongxiang.Beginning times,fault framework and deep dynamics of the extensional activities in the Hefei basin and Tan-Lu fault zone[J].Journal of Nanjing University(natural science),2007,43(5)34-43]
14王利,周祖翼,朱毅杰.合肥盆地中新生代三维埋藏史分析[J].高校地质学报,2007,13(1):105-111[Wang Li,Zhou Zuyi,Zhu Yijie.3-D burial history analysis of Hefei Basin since Mesozoic[J].Geological Journal of China Universities,2007,13(1):105-111]
15许长海,周祖翼,P.Van Den Haute,等.合肥盆地构造演化的磷灰石裂变径迹分析[J].石油学报,2007,27(6):5-12[Xu Changhai,Zhou Zuyi,P.Van Den Haute,et al.Apatite fission-track thermo-chronology of tectonic evolution in Hefei Basin[J].Acta Petrolei Sini-ca,2007,27(6):5-12]
16朱光,牛漫兰,刘国生,等.郯庐断裂带早白垩世走滑运动中的构造、岩浆、沉积事件[J].地质学报,2002,76(3):325-334[Zhu Guang,Niu Manlan,Liu Guosheng,et al.Structural,magmatic and sedimentary events of the Tan-Lu fault belt during its early Cretaceous strike-slip movement[J].Acta Geologica Sinica,2002,76(3):325-334]
17陈建平,钟建华,饶孟余,等.合肥盆地中、新生代沉积相初步研究[J].沉积与特提斯地质,2003,23(2):48-54[Chen JianPing,Zhong Jianhua,Rao Mengyu,et al.Mesozoic and Cenozoic sedimenta-ry facies in the Hefei Basin[J].Sedimentary Geology and Tethyan Geology,2003,23(2):48-54]
18吴跃东,邵莉.安徽合肥盆地东北部白垩纪层序地层学分析[J].地层学杂志,2002,26(2):111-119[Wu Yuedong,Shao Li.Creta-ceous sequence stratigraphic analysis of the northeastern Hefei Basin[J].Journal of Stratigraphy,2002,26(2):111-119]
19邓宏文,王洪亮.美国层序地层研究的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89-97[Deng Hong-wen,Wang Hongliang.Anewschool thought in sequence stratigraph-ic studies in US:high-resolution sequence stratigraphy[J].Oil&Gas Geology,1995,16(2):89-97]
20邓宏文,王红亮.高分辨率层序地层学——原理及应用[M].北京:地质出版社,2002[Deng Hongwen,Wang Hongliang.High-reso-lution Sequence Stratigraphy:Principles and Application[M].Bei-jing:Geological Publishing House,2002]
21Vail P R.Sequence stratigraphy work book,fundamentals of sequence stratigraphy[C]∥AAPG Annual Convention Short Course:Sequence Stratigraphy Interpretation of Seismic Well and Outcrop Data,Hous-ton,1988
22Mitchum R M,Van J C.High frequency sequence and their stacking patterns:sequence stratigraphy evidence of high frequentcy eustatic cycle[J].Sedimentary Geology,1991,70(2):135-144
23Van J C.Mitchum R M,Campion K M,et al.Methods in Explora-tion Series,No7[C].Tulsa:AAPG,1990
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