东海盆地西湖凹陷反转构造特征及其形成的动力环境
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摘要
通过对地震剖面观察和沉积构造分析,根据反转褶皱隆起及其伴生的断层发育程度,将东海陆架盆地西湖凹陷的反转构造划分为宽缓隆褶、陡窄隆褶、宽缓隆断褶和陡窄隆断褶4种类型。西湖凹陷的构造反转强度及特征具有东西分带、南北分区的特点。在东西排列的三带中,中央突起带反转最强,东部断阶带次之,西部斜坡带反转最弱。在南北分布的三区里,北区发育较强陡窄隆褶,中区总体反转强、局部反转弱,南区总体反转弱、局部反转强。西湖凹陷的反转构造以褶皱为主,并不同程度地伴生断裂。据此,选取反转逆断距、反转褶皱波幅和缩短率3个参数,对中央突起带反转构造的分布规律进行定量研究。研究和统计结果表明,中央突起带的北部反转强烈,中部构造反转最强和较弱地区相邻并存,南部总体反转较弱、局部较强。反转构造主要由中新世中晚期龙井运动形成,反转逆断层由先存断层逆向再活动发展而来,逆断距一般自下向上逐渐减小;而反转褶皱主要发生在上部沉积层,其发育程度自下而上逐渐增强。西湖凹陷构造反转的形成,主要是中新世菲律宾板块向亚洲板块俯冲,导致冲绳海槽弧后扩张,进而产生向西推挤的作用所致。
Through seismic section study and sedimentary-tectonic analyzing,based on the volume of uplift and associated fault,the inversion structures in the Xihu Depression of East China Sea shelf basin are divided into four types:wide fold,narrow fold,wide fold with reverse fault,and narrow fold with reverse fault.The inversion structures in the Xihu Depression are characterized by the zonation from east to west and the partition from south to north.The Central Uplift Belt has the strongest inversion structure,the East Marginal Belt is relatively gentle and the inversion in the West Marginal Belt is the weakest.The North Block comprises a lot narrow folds,while the Middle Block comprises strong inversion generally but weak in some places,The South Block have the opposite regulation to Middle Block.The inversion structures in the study area are mostly folds and supplemented with different degree of faults,so three parameters that are reverse displacement of inversion fault,amplitude of inversion fold and compression ratio in the Central Uplift Belt are chosen to quantitatively study the inversion characteristics in the Central Uplift Belt.The result shows that the inversion structure in the North Central Uplift Belt is strong,but limited;while the inversion structure in the Middle Central Uplift Belt is very strong or weak;the South Central Uplift Belt comprises strong inversion in some places,but weak mostly.The inversion structures in the Xihu Depression were caused by Longjing tectonic movement in the middle-late Miocene.The inversion faults were evolved by the reversal reactivation of pre-existing normal fault;the reverse displacement generally reduced from bottom to the top.Inversion folds are more likely to develop on the top strata;it generally enhanced from bottom to the top.The subduction of Philippine Sea Plate to Asian Plate,caused Okinawa Trough to open,which caused the west boundary of Okinawa Trough to be pushed toward west.This push made the inversion structures in the Xihu Depression formed.
引文
[1]戴黎明.东海陆架盆地成因的动力学机制及其数值模拟[D].青岛:中国海洋大学,2010.
    [2]Williams G D,Powell C M,Cooper M A.Geometry and kinematics of inversion tectonics[J].Geological Society,London,Special Publications,1989(4):3-15.
    [3]Mitra S.Geometry and kinematic evolution of inversion structures[J].AAPG Bulletin,1993,77(7):1159-1191.
    [4]Song T G.Inversion styles in the Songliao basin(northeast China)and estimation of the degree of inversion[J].Tectonophysics,1997,283:173-188.
    [5]Turner J P,Williams G A.Sedimentary basin inversion and intra-plate shortening[J].Earth-Science Reviews,2004,65:277-304.
    [6]Yang F L,Yu H X,Zhang Q L,et al.Correlations between shortening rate,uplift rate,and inversion rate in central inversion zone of Xihu Depression,East China Sea Basin[J].Journal of Earth Science,2009,20(4):699-708.
    [7]Cooper M,Warren M J.The geometric characteristics,genesis and petroleum significance of inversion structures[J].Geological Society,London,Special Publications,2010,335:827-846.
    [8]胡望水.正反转构造的成因类型[J].江汉石油学院学报,1993,15(4):19-25.
    [9]周祖翼.反转构造[J].地质科技情报,1994,13(1):3-11.
    [10]陈昭年,陈发景.反转构造与油气圈闭[J].地学前缘,1995,2(3):96-102.
    [11]王国纯.东海盆地西南部正的反转构造[J].石油与天然气地质,1989(2):137-144.
    [12]杨风丽,王敏雪,庄建建,等.西湖凹陷反转构造定量运动学过程及对油气的控制作用[J].石油学报,2010,31(4):596-601.
    [13]胡望水,柴浩栋,李瑞升,等.平衡剖面技术对东海西湖凹陷正反转构造及其成藏控制的研究[J].特种油气藏,2010,17(1):15-19.
    [14]张敏强,钟志洪,夏斌.东海西湖凹陷中南部晚中新世构造反转与油气运聚[J].中国海上油气,2005(2):73-79.
    [15]刘景彦,林畅松,姜亮,等.东海西湖凹陷第三系反转构造及其对油气聚集的影响[J].地球学报,2000(4):350-355.
    [16]肖坤叶,赵健,余朝华,等.中非裂谷系Bongor盆地强反转裂谷构造特征及其对油气成藏的影响[J].地学前缘,2014,21(3):172-180.
    [17]刘池洋,赵俊峰,马艳萍,等.富烃凹陷特征及其形成研究现状与问题[J].地学前缘,2014,21(1):75-88.
    [18]熊斌辉,王春红,张锦伟,等.西湖凹陷龙井运动特征[J].中国海上油气,2008,20(2):77-81.
    [19]周祖翼,贾健谊,李家彪,等.东海西湖凹陷反转构造定量研究:来自裂变径迹分析数据的约束[J].海洋地质与第四纪地质,2002,22(1):63-67.
    [20]刘景彦,林畅松,肖建新,等.东海西湖凹陷第三系主要不整合面的特征、剥蚀量的分布及其意义[J].现代地质,1999,13(4):432-438.
    [21]许浚远,张凌云.西北太平洋边缘新生代盆地成因(中):连锁右行拉分裂谷系统[J].石油与天然气地质,2000,21(3):185-190.
    [22]刘卫红,林畅松,郭泽清,等.东海陆架盆地西湖凹陷新生代反转构造样式及其形成机制初探[J].地质科学,2009,44(1):74-87.
    [23]张训华,孟祥君,许红,等.中国海域构造地质学[M].北京:海洋出版社,2008:28-32,374-382.
    [24]徐杰,周本刚,计凤桔,等.中国东部海域及其邻区现代构造应力场研究[J].地学前缘,2012,19(4):1-7.
    [25]臧绍先,宁杰远.菲律宾海板块与欧亚板块的相互作用及其对东亚构造运动的影响[J].地球物理学报,2002,45(2):188-197.
    [26]赵金海.东海中—新生代盆地成因机制和演化(上)[J].海洋石油,2004,24(4):7-14.
    [27]丁巍伟,杨树峰,陈汉林,等.台湾岛以南海域新近纪的弧-陆碰撞造山作用[J].地质科学,2006,41(2):195-201.
    [28]王鹏,赵志刚,张功成.东海盆地钓鱼岛隆褶带构造演化分析及对西湖凹陷油气勘探的意义[J].地质科技情报,2011,30(4):66-72.
    [29]Letouzey J,Kimura M.The Okinawa Trough:Genesis of a back-arc basin developing along a continental margin[J].Tectonophysics,1986,125:209-230.
    [30]王丽娜.东海玉泉构造带及其邻区的构造特征及演化研究[D].青岛:中国海洋大学,2010.
    [31]Kong F C,Lawver L A,Lee T Y.Evolution of the southern Taiwan-Sinzi Folded Zone and opening of the southern Okinawa trough[J].Journal of Asian Earth Sciences,2000,18:325-341.
    [32]许浚远,张凌云.西北太平洋边缘新生代盆地成因(下):后裂谷期构造演化[J].石油与天然气地质,2000,21(4):287-292.
    [33]吴根耀,矢野孝雄.东亚大陆边缘的构造格架及其中—新生代演化[J].地质通报,2007,26(7):787-800.
    [34]李三忠,余珊,赵淑娟,等.东亚大陆边缘的板块重建与构造转换[J].海洋地质与第四纪地质,2013,33(3):65-94.
    [35]温志新,童晓光,张光亚,等.全球板块构造演化过程中五大成盆期原型盆地的形成、改造及叠加过程[J].地学前缘,2014,21(3):26-37.

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