| 青藏高原“亚东—东巧—葫芦湖”大陆裂谷带形成的深层动力过程 |
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| 引用本文： | 滕吉文,宋鹏汉,刘有山,张雪梅,马学英,闫雅芬.青藏高原“亚东—东巧—葫芦湖”大陆裂谷带形成的深层动力过程[J].地球物理学报,2019,62(9):3321-3339. |
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| 作者姓名： | 滕吉文 宋鹏汉 刘有山 张雪梅 马学英 闫雅芬 |
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| 作者单位： | 1. 中国科学院地质与地球物理研究所, 北京 100029;2. 中国科学院大学, 北京 100049;3. 中国地震局台网数据中心, 北京 100045 |
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| 基金项目： | 中国科学院地质与地球物理研究所自主研究项目（31531180）资助. |
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| 摘 要： | 正确理解亚东—东巧—葫芦湖构造带的形成与属性对深化认识青藏高原的地壳形变、物质运动的行为与轨迹和深层动力过程极为重要.通过较系统的多元要素分析和研究发现：（1）基于壳、幔结构的空间展布特征表明，这是一条在EW向拉张力系作用下的陆内裂谷带；（2）强烈地震的活动与发生、大地热流异常值展布和地幔对流应力场研究证明，它是一条现今活动的大陆裂谷带；（3）该裂谷带的形成与演化乃地球内部物质与能量强烈交换的产物.
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| 关 键 词： | 壳、幔结构 地震活动性 地热场特征 大陆裂谷 深层动力过程 |
| 收稿时间： | 2017-01-09 |
Deep dynamics for the Yadong-Dongqiao-Huluhu rift in the Tibetan plateau |
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| TENG JiWen,SONG PengHan,LIU YouShan,ZHANG XueMei,MA XueYing,YAN YaFen.Deep dynamics for the Yadong-Dongqiao-Huluhu rift in the Tibetan plateau[J].Chinese Journal of Geophysics,2019,62(9):3321-3339. |
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| Authors: | TENG JiWen SONG PengHan LIU YouShan ZHANG XueMei MA XueYing YAN YaFen |
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| Institution: | 1. Institute of Geology and Geophysics, The Chinese Academy of Science, Beijing 100029, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. China Earthquake Networks Center, Beijing 100045, China |
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| Abstract: | The characteristics and formation of the Yadong-Dongqiao-Huluhu Belt (YDHB) are important to the understanding of crustal deformation, material movement and deep dynamics of the Tibetan Plateau. Analyses on multiple elements suggests that:(1) The YDHB is an intracontinental rift under EW-directed extensional force as evidenced by spatial distribution of crust and mantle structures; (2) High seismicity, distribution of abnormal terrestrial heat flow and the stress field by mantle convection indicate that it is an active continental rift; (3) The formation and evolution of the YDHB is the product of intense exchange of material and energy in the Earth's interiors. |
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| Keywords: | Crust-mantle structure Seismicity Geothermal field feature Continental rift Deep dynamics |
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