| 太平洋板块俯冲对长白山天池火山的影响 |
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| 引用本文： | 盛俭,廖杰,李永义,胡庆兴,徐令宇,周正华.太平洋板块俯冲对长白山天池火山的影响[J].地球物理学报,2018,61(11):4396-4405. |
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| 作者姓名： | 盛俭 廖杰 李永义 胡庆兴 徐令宇 周正华 |
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| 作者单位： | 1. 南京工业大学交通运输工程学院, 南京 210009;2. 中山大学地球科学与工程学院, 广州 510275;3. 瑞士联邦理工大学, 瑞士苏黎世 8092 |
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| 基金项目： | 国家自然科学基金（41404071，51508271，41374049）资助. |
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| 摘 要： | 长白山天池火山是我国最具潜在喷发危险的活火山之一，属于远离海沟的陆内火山.太平洋板块平卧于长白山天池火山的下方，其俯冲过程对长白山天池火山形成及活动具有重要意义.本文通过二维热力学耦合的数值模型对海洋板块俯冲的动力学过程进行了模拟，分析了海洋板块俯冲对远离海沟的陆内火山的深部温压条件、速度场、岩浆补给量等的影响.依据模拟结果探讨了太平洋板块对长白山天池火山活动影响的可能性及方式.
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| 关 键 词： | 太平洋板块 天池火山 数值模拟 影响 |
| 收稿时间： | 2017-05-16 |
Influence of the Pacific plate subduction on the Tianchi volcano |
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| SHENG Jian,LIAO Jie,LI YongYi,HU QingXing,XU LingYu,ZHOU ZhengHua.Influence of the Pacific plate subduction on the Tianchi volcano[J].Chinese Journal of Geophysics,2018,61(11):4396-4405. |
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| Authors: | SHENG Jian LIAO Jie LI YongYi HU QingXing XU LingYu ZHOU ZhengHua |
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| Institution: | 1. College of Transportation Science & Engineering, Nanjing Tech University, Nanjing 210009, China;2. School of Earth Sciences and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;3. Institute of Geophysics, ETH Zürich, Zürich 8092, Switzerland |
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| Abstract: | The Tianchi volcano, with high potential eruption possibility, is one of the dangerous volcanoes in China. It has a unique geological setting, as it is located far from the Pacific subduction trench and is above the deeply subducted paleo-Pacific slab at around 660 km. The Pacific plate subduction process controls the origin and activity of the Tianchi volcano. A two-dimensional thermo-mechanical numerical model was implemented to investigate the complex dynamics of long-term subduction process how to influence the deep tectonic environment of the intracontinental volcano, such as temperature-pressure condition, velocity field and magma replenishment. The possibility and the way of the Pacific plate subduction influencing the Tianchi volcano activity were discussed. |
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| Keywords: | Pacific plate Tianchi volcano Numerical modeling Influence |
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