盛俭^1,,
廖杰^2,3,
李永义^1,,,
胡庆兴¹,
徐令宇¹,
周正华¹
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

基金项目: 国家自然科学基金（41404071，51508271，41374049）资助


详细信息

作者简介: 盛俭, 男, 1979年生, 副研究员, 博士, 主要从事地球动力学、地震地质等方面研究.E-mail:sj2984@sina.com

通讯作者: 李永义, 男, 1981年生, 副教授, 博士, 主要从事防灾减灾工程、地震工程方面的研究.E-mail:49232712@qq.com

中图分类号: P541

收稿日期:2017-05-16
修回日期:2018-04-11
上线日期:2018-11-05

Influence of the Pacific plate subduction on the Tianchi volcano

SHENG Jian^1,,
LIAO Jie^2,3,
LI YongYi^1,,,
HU QingXing¹,
XU LingYu¹,
ZHOU ZhengHua¹
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


More Information

Corresponding author: LI YongYi,E-mail:49232712@qq.com

MSC: P541

--> Received Date: 16 May 2017
Revised Date: 11 April 2018
Available Online: 05 November 2018


摘要
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.
关键词: 太平洋板块/
天池火山/
数值模拟/
影响

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.
Key words:Pacific plate/
Tianchi volcano/
Numerical modeling/
Influence



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