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利用重力多尺度分解资料反演青藏高原东北缘地壳厚度

CRUST THICKNESS INVERSED FROM MULTI-SCALE DECOMPOSITION OF BOUGUER GRAVITY ANOMALIES IN NORTHEASTERN OF QINGHAI-TIBET PLATEAU

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【Author】 Wu Lixin1),Yang Mingzhi1),Zhao Weiming1),Fu Rongshan2),Zhu Liangbao2) and Shi Xingjue2)(1)Earthquake Administration of Ningxia Hui Autonomous Region,Yinchuan 7500012)University of Science and Technology of China,Hefei 230026)

【机构】宁夏回族自治区地震局；中国科学技术大学；

【摘要】通过重力异常分解模型,选用小波基函数"bior3.7",分解得出青藏高原东北缘布格重力异常资料的小波4阶近似成分,利用其主要由莫霍面产生的布格重力异常,以6条人工地震剖面信息做初始控制条件,反演得出青藏高原东北缘的地壳厚度。更多还原

【Abstract】 With a gravity anomalies decomposition model,and through using the wavelet function "bior3.7",the fourth order wavelet approximate components of the Bouger gravity anomalies of northeast margin of the Qinghai-Tibetan Plateau can be obtained.Furthermore,by utilizing the Bouger gravity anomalies come from the Moho and taking the information from the 6 artificial profiles as the initial control conditions,the crustal thickness of northeastern margin of the Qinghai-Tibetan Plateau is inversed,and the inversion results are analyzed and discussed according to the crustal thickness distribution features.更多还原

【关键词】重力异常；青藏高原东北缘；小波分析；反演；地壳厚度；
【Key words】 gravity anomaly； northeastern margin of the Qinghai-Tibetan Plateau； wavelet analysis； inversion； crustal thickness；

【文献出处】大地测量与地球动力学 ,Journal of Geodesy and Geodynamics , 编辑部邮箱 ,2011年01期

【分类号】P631.1
【被引频次】10
【下载频次】254

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