| 西吉—中卫地震测深剖面及其解释 |
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| 引用本文： | 赵金仁,刘宝峰,潘素珍,张建狮,刘建军,李松林,张先康,任青芳,张成科,石金虎.西吉—中卫地震测深剖面及其解释[J].地震地质,2001,23(1):86-92. |
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| 作者姓名： | 赵金仁 刘宝峰 潘素珍 张建狮 刘建军 李松林 张先康 任青芳 张成科 石金虎 |
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| 作者单位： | 1. 国地震局地球物理勘探中心,
2. 中国地震局地球物理勘探中心, |
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| 基金项目： | 国家重点基础研究发展项目! ( 973项目，95130 2 0 2 ) |
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| 摘 要： | 通过对南北向的西吉－中卫宽角反射／折射剖面测探资料的二维处理、计算和解释，研究了中宁、中卫和同心一带弧形构造及两侧的壳幔速度结构和深部构造的基本特征。结果表明，3个区域的壳幔速度结构在纵向和横向上均具有明显的非均匀性，标志壳幔深部构造存在着差异，地壳厚度变化大，弧形构造带中部为一莫霍面隆起（深45．0km)，弧形构造带南北两侧上地壳中存在不同的低速块体。
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| 关 键 词： | 地震测深 速度结构 壳幔构造 深部构造 测探资料 解释 弧形构造带 |
SEISMIC SOUNDING PROFILE AND ITS INTERPRETATION IN THE REGION OF XIJI—ZHONGWEI |
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| Li Songlin,Zhang Xiankang,Ren Qingfang,Zhang Chengke,Shi Jinhu,Zhao Jinren,Liu Baofeng,Pan Suzhen,Zhang Jianshi,Liu Jianjun.SEISMIC SOUNDING PROFILE AND ITS INTERPRETATION IN THE REGION OF XIJI—ZHONGWEI[J].Seismology and Geology,2001,23(1):86-92. |
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| Authors: | Li Songlin Zhang Xiankang Ren Qingfang Zhang Chengke Shi Jinhu Zhao Jinren Liu Baofeng Pan Suzhen Zhang Jianshi Liu Jianjun |
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| Abstract: | We have performed 2D processing, calculations and interpretation of the seismic sounding data of a wide-angle reflection and refraction profile from Xiji to Zhongwei. Our purpose is to study the velocity structure of the crust and upper mantle around the arc-shape tectonics near Zhongning, Zhongwei and Tongxin, Ningxia. The results show that the velocity structure of the crust and upper mantle of this region is remarkably not homogeneous. The crustal thickness has big variations. The Moho interface is relatively shallow at the middle of the arc-shape tectonic zone and becomes deeper at the other places. |
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