玛纳斯地震区地壳浅部构造特征探测研究
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摘要
采用高精度的浅层地震勘探方法和先进的数据处理技术 ,查明了玛纳斯地震区玛纳斯背斜的浅部地壳结构特征 .它主要由一个逆掩推覆构造体和两个局部背斜组成 ,存在一条盲断层和两条地表出露断层 .结合附近地质资料和钻井资料 ,确定了每条断层的活动年代 ,为进一步研究该区的深浅部构造之间的关系和玛纳斯地震的发震机制提供了可靠的浅层资料
The shallow crust structure characteristics of Manas anticline in Manas earthquake area are studied using high precision shallow seismic prospecting method and advanced data processing technique. The anticline consists mainly of an overthrust nappe and two partial anticlines, and includes a blind thrust and two surface active faults. Active age of every fault is determined by geological data and drilling data nearby. It provides reliable shallow data for further studying of the relation between deep structure and shallow structure and seismogenic mechanism of Manas earthquake. [
The shallow crust structure characteristics of Manas anticline in Manas earthquake area are studied using high precision shallow seismic prospecting method and advanced data processing technique. The anticline consists mainly of an overthrust nappe and two partial anticlines, and includes a blind thrust and two surface active faults. Active age of every fault is determined by geological data and drilling data nearby. It provides reliable shallow data for further studying of the relation between deep structure and shallow structure and seismogenic mechanism of Manas earthquake. [
引文
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[7] 邓起东 ,冯先岳 ,张培震等 .乌鲁木齐山前坳陷逆断裂 褶皱带及其形成机制 .地学前缘 ,1 999,6(4) :1 91— 2 0 1 .DENGQi Dong,FENGXian Yue,ZHANGPei Zhen ,etal.ReversefaultandfoldzoneintheUrumqirange frontdepressionofthenorthernTianshananditsgeneticmechanism .EarthScienceFrontiers(inChinese) ,1 999,6(4) :1 91— 2 0 1 .
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[2 ] SteinRS ,YeatsRS .Hiddenearthquakes.ScientificAmerican ,1 989,2 60 :4 8— 57.
[3 ] EkstromG ,EnglandP .Seismicstrainratesinregionsofdistributedcontinentaldeformation .J.Geophys.Res.,1 989,94 :1 0 2 3 1— 1 0 2 57.
[ 4 ] 杨晓平 ,邓起东 ,张培震等 .北天山地区活动逆断裂 褶皱带构造与潜在震源区估计 .地震地质 ,1 998,2 0 (3 ) :1 93— 1 98.YANGXiao Ping ,DENGQi Dong ,ZHANGPei Zhen,etal.Activereversefault foldzonesandestimationofpo tentialearthquakesource,westUrumqi,northernTianshan .SeismologyandGeology (inChinese) ,1 998,2 0 (3 ) :1 93— 1 98.
[5] 詹 艳 ,赵国泽 ,汤 吉等 .新疆玛纳斯地震区地壳深部的电性结构 .地震地质 ,1 999,2 1 (2 ) :1 59— 1 66.ZHANYan ,ZHAOGuo Ze ,TANGJi,etal.ElectricstructureofthecrustoftheManasearthquakeareainXinjiangautonomousregion (inChinese) .SeismologyandGeology,1 999,2 1 (2 ) :1 59— 1 66.
[6] 柏美祥 ,方志强 .1 90 6年新疆玛纳斯西南八级地震地表破坏现象与地质构造的关系 .西北地震学报 ,1 981 ,3(2 ) :1 0 0— 1 0 2 .BAIMei Xiang ,FANGZhi Qiang .RelationshipbetweenphenomenaofsurfacebreakingandgeologicalstructuresoftheManassouthwesternearthquake (M =8)in 1 90 6intheXinjiangregion .NorthwesternSeismologicalJournal(inChinese) ,1 981 ,3 (2 ) :1 0 0— 1 0 2 .
[7] 邓起东 ,冯先岳 ,张培震等 .乌鲁木齐山前坳陷逆断裂 褶皱带及其形成机制 .地学前缘 ,1 999,6(4) :1 91— 2 0 1 .DENGQi Dong,FENGXian Yue,ZHANGPei Zhen ,etal.ReversefaultandfoldzoneintheUrumqirange frontdepressionofthenorthernTianshananditsgeneticmechanism .EarthScienceFrontiers(inChinese) ,1 999,6(4) :1 91— 2 0 1 .
[8] 赵成斌 ,许 云 ,乌达巴拉 .地震波走时和射线的有限差分计算 .华北地震科学 ,1 995,1 3 (4) :4 1— 4 6.ZHAOCheng Bin ,XUYun ,WUDABa La.Finite differencecalculationoftraveltimesandraysoftheseismicwave.NorthChinaEarthquakeSciences(inChinese) ,1 995,1 3 (4) :4 1— 4 6.
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