Geological background and geodynamic mechanism of Mt. Changbai volcanoes on the China–Korea border

Geological background and geodynamic mechanism of Mt. Changbai volcanoes on the China–Korea border
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中朝边境长白山火山地质背景及地球动力机制

DOI:
10.1016/j.lithos.2015.08.011
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发表时间:
2015-11
期刊:
影响因子:
3.5
通讯作者:
Huaiyu He
Huaiyu He
中科院分区:
地球科学2区
文献类型:
--
作者:
Jiaqi Liu;Shuangshuang Chen;Zhengfu Guo;Wenfeng Guo;Huaiyu He

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强烈的新生代火山活动。长白山是研究火山作用特征和东北亚大陆边缘动力学演化的天然实验室。山长白火山主要由中国的望天峨火山、横跨中朝的天池火山和朝鲜的南丰火山组成。地质年代学资料和火山作用历史记录表明,三个火山喷发中心的形成顺序为望天峨火山-南坡火山-天池火山,在时间和空间上均由西南向东北推进。火山的三个喷发中心。长白山新生代火山活动具有岩浆演化趋势相似、双峰式火山岩分布、地幔源区富集等特点。认为长白山与西太平洋板块俯冲作用有一定关系,火山活动规律和岩相学特征具有大陆裂谷的相似性。因此,我们得出结论,在日本海两侧发生同步和相似的火山活动(即,日本弧和中国东北)可能响应于裂谷扩张和日本海弧后扩张。从多个角度来看,Mt。长白火山是一座巨大的活火山,具有潜在的喷发危险。
The intense Cenozoic volcanism of Mt. Changbai provides a natural laboratory for investigating the characteristics of volcanism and the dynamical evolution of the Northeast Asian continental margin. Mt. Changbai volcanoes predominantly consist of Wangtian'e volcano in China, Tianchi volcano spanning China and DPR Korea, and Namphothe volcano in DPR Korea. Geochronology data and historical records of volcanism indicate that the three eruption centers were formed in the following sequence: Wangtian'e volcano to Namphothe and Tianchi volcano, advancing temporally and spatially from southwest to northeast. The three eruption centers of Mt. Changbai volcano are located close together, have similar magma evolution trends, bimodal volcanic rock distribution, and an enriched mantle source, etc. Although the Cenozoic volcanism in Mt. Changbai is thought to be somewhat related to the subduction of the Western Pacific Plate, the regularity of volcanic activity and petrography characteristics have continental rift affinity. We therefore conclude that the occurrence of synchronous and similar volcanic activity on both sides of the Japan Sea (i.e., the Japan Arc and Northeast China) likely respond to the rift expansion and the back-arc spreading of Japan Sea. From many perspectives, Mt. Changbai volcano is a giant active volcano with hidden potentially eruptive risks.
DOI: 10.1016/0168-9622(86)90054-0
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