渤海湾盆地中新生代构造演化与构造样式
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摘要
通过火成岩岩石地球化学分析,渤海湾地区中新生代岩浆活动大致可分为5期,由此将渤海湾盆地中新代构造演化划分为5个阶段:①印支期岩性组合为正长花岗岩和二长花岗岩,以伸展构造环境为主;②燕山早期岩性组合为埃达克岩和高锶花岗岩,以挤压造山构造环境为主;③燕山晚期岩性组合为酸性—偏碱性岩,如A型花岗岩、辉长岩、正长岩以及拉斑质钙碱性玄武岩等,以伸展和岩石圈减薄构造环境为主;④沙三—东营期岩性组合以碱性玄武岩为主,此时岩石圈减薄作用减弱,渤海湾拉分盆地正式形成;⑤馆陶期之后,火成岩为碱性玄武岩,构造活动处于相对平静期,渤海湾地区处于整体坳陷阶段。结合地震资料解释认为:印支期以伸展构造样式为主;燕山早期以收缩构造样式为主;燕山晚期—喜山早期以负反转构造样式为主;沙三—东营期以扭动构造样式为主;馆陶—明化镇期后由于盆地处于整体坳陷阶段,主要以伸展构造样式为主。
Lithogeochemical analysis of volcanic rocks shows that the Meso-cenozoic magmatic activities in the Bohai Bay Basin can be approximately grouped into 5 stages and the Meso-cenozoic structural evolution in the Bohai Bay Basin are correspondingly divided into 5 phases. ①The Indosinian lithological association was composed of syenogranite and adamellite and was dominated by extensional tectonic setting; ②The Early Yanshanian lithological association was composed of Eilat stone and high-strontium granit and was dominated by compressional tectonic setting; ③The Late Yanshanian lithological association was composed of acidic rocks and alkali-prone rocks, such as granite of type A, graniton, syenite and tholeiitic calc alkali basalt, and was dominated by extensional and lithosphere thinning tectonic settings; ④The lithologic association of the third member of Shahejie Formation and Dongying Formation was dominated by alkali basalt. Lithosphere thinning got weak and the pull-apart Bohai Bay Basin was formed during this period. ⑤After the the Guantao Formation was deposited, the igneous rocks became alkali basalt, the tectonic activity got relatively weak and the Bohai Bay area entered into mass depression. In combination with the seismic interpretation, it is believed that Indo-Chinese epoch was dominated by extensional tectonic style, the Early Yanshanian epoch was dominated by contraction tectonic style, the Late Yanshanian-Early Himalayan epoch was dominated by negative reverse tectonic style, the period during which the third member of Shahejie Formation and Dongying Formation were deposited was dominated by shear tectonic style, and the period after the deposition of the Guantao-Minghuazhen Formations was dominated by extensional tectonic style because the basin was in mass depression.
Lithogeochemical analysis of volcanic rocks shows that the Meso-cenozoic magmatic activities in the Bohai Bay Basin can be approximately grouped into 5 stages and the Meso-cenozoic structural evolution in the Bohai Bay Basin are correspondingly divided into 5 phases. ①The Indosinian lithological association was composed of syenogranite and adamellite and was dominated by extensional tectonic setting; ②The Early Yanshanian lithological association was composed of Eilat stone and high-strontium granit and was dominated by compressional tectonic setting; ③The Late Yanshanian lithological association was composed of acidic rocks and alkali-prone rocks, such as granite of type A, graniton, syenite and tholeiitic calc alkali basalt, and was dominated by extensional and lithosphere thinning tectonic settings; ④The lithologic association of the third member of Shahejie Formation and Dongying Formation was dominated by alkali basalt. Lithosphere thinning got weak and the pull-apart Bohai Bay Basin was formed during this period. ⑤After the the Guantao Formation was deposited, the igneous rocks became alkali basalt, the tectonic activity got relatively weak and the Bohai Bay area entered into mass depression. In combination with the seismic interpretation, it is believed that Indo-Chinese epoch was dominated by extensional tectonic style, the Early Yanshanian epoch was dominated by contraction tectonic style, the Late Yanshanian-Early Himalayan epoch was dominated by negative reverse tectonic style, the period during which the third member of Shahejie Formation and Dongying Formation were deposited was dominated by shear tectonic style, and the period after the deposition of the Guantao-Minghuazhen Formations was dominated by extensional tectonic style because the basin was in mass depression.
引文
[1]蔡乾忠,刘守全.渤海湾盆地成盆前后重大地质事件与浅层油气富集[J].中国海上油气聚集,2001,15(1):11-14.
[2]贾志斌,田新琦,孟祥顺,等.渤海湾盆地成因机制与油气评价[J].石油地球物理勘探.2003,38(1):62-66.
[3]吴兴宁,周建勋.渤海湾盆地构造成因观点剖析[J].地球物理学进展,2000,15(1):98-105.
[4]马杏垣,等.中国东部中、新生代裂陷作用与伸展构造[J].地质学报,1983,57(1):22-32.
[5]陈国达.中国东部后地台造山带新生代盆地成因一解[J].大地构造与成矿学,1988,12(1):1-4.
[6]李德生.渤海湾含油气盆地的地质构造特征与油气分布[C].李德生石油地质论文集,1992.
[7]田在艺,等.渤海湾盆地构造变形分析及其拗陷机制[J].河北地质学院学报,1991,14(1):1-18.
[8]田在艺,等.渤海断陷盆地拉张量分析与油气潜力[J].石油学报,1990,11(2):1-12.
[9]漆家福,等.渤海湾新生代裂陷盆地的伸展模式及其动力学过程[J].石油实验地质,1995,17(4):316-323.
[10]李鹏举,等.渤海湾盆地东濮凹陷的形成及断裂构造研究[J].南京大学学报:自然科学,1995,31(1):128-139.
[11]赵重远.渤海湾盆地的构造格局及其演化[J].石油学报,1984,5(1):1-18.
[12]王同和.渤海湾盆地中、新生代应力场的演化与古潜山油气藏的形成[J].石油与天然气地质,1986,7(3):273-280.
[13]张抗.亚洲东部新生代的扩张及其大地构造意义[J].海洋地质与第四纪地质,1988,8(3):25-34.
[14]陈发景,等.中国东部中、新生代伸展构造特征及地球动力学背景[J].地球科学,1996,21(4):357-365.
[15]刘国栋,等.华北北部地区上地幔构造及其与新生代构造活动的关系[J].中国科学:B辑,1982(12):22-32.
[16]刘红涛,孙世华,刘建明,等.华北克拉通北缘中生代高锶花岗岩类:地球化学与源区性质[J].岩石学报,2002,18:257-274.
[17]张旗,钱青,王二七,等.燕山中晚期的“中国东部高原”:埃达克岩的启示[J].地质科学,2001,36(2):248-255.
[18]肖焕钦.济阳坳陷中生代原型盆地恢复[D].博士论文2006:66-67.
[2]贾志斌,田新琦,孟祥顺,等.渤海湾盆地成因机制与油气评价[J].石油地球物理勘探.2003,38(1):62-66.
[3]吴兴宁,周建勋.渤海湾盆地构造成因观点剖析[J].地球物理学进展,2000,15(1):98-105.
[4]马杏垣,等.中国东部中、新生代裂陷作用与伸展构造[J].地质学报,1983,57(1):22-32.
[5]陈国达.中国东部后地台造山带新生代盆地成因一解[J].大地构造与成矿学,1988,12(1):1-4.
[6]李德生.渤海湾含油气盆地的地质构造特征与油气分布[C].李德生石油地质论文集,1992.
[7]田在艺,等.渤海湾盆地构造变形分析及其拗陷机制[J].河北地质学院学报,1991,14(1):1-18.
[8]田在艺,等.渤海断陷盆地拉张量分析与油气潜力[J].石油学报,1990,11(2):1-12.
[9]漆家福,等.渤海湾新生代裂陷盆地的伸展模式及其动力学过程[J].石油实验地质,1995,17(4):316-323.
[10]李鹏举,等.渤海湾盆地东濮凹陷的形成及断裂构造研究[J].南京大学学报:自然科学,1995,31(1):128-139.
[11]赵重远.渤海湾盆地的构造格局及其演化[J].石油学报,1984,5(1):1-18.
[12]王同和.渤海湾盆地中、新生代应力场的演化与古潜山油气藏的形成[J].石油与天然气地质,1986,7(3):273-280.
[13]张抗.亚洲东部新生代的扩张及其大地构造意义[J].海洋地质与第四纪地质,1988,8(3):25-34.
[14]陈发景,等.中国东部中、新生代伸展构造特征及地球动力学背景[J].地球科学,1996,21(4):357-365.
[15]刘国栋,等.华北北部地区上地幔构造及其与新生代构造活动的关系[J].中国科学:B辑,1982(12):22-32.
[16]刘红涛,孙世华,刘建明,等.华北克拉通北缘中生代高锶花岗岩类:地球化学与源区性质[J].岩石学报,2002,18:257-274.
[17]张旗,钱青,王二七,等.燕山中晚期的“中国东部高原”:埃达克岩的启示[J].地质科学,2001,36(2):248-255.
[18]肖焕钦.济阳坳陷中生代原型盆地恢复[D].博士论文2006:66-67.
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