Eruption history and magma evolution of the trachybasalt in the Tianchi volcano, Changbaishan
文献类型：期刊论文
| 作者 | Fan QiCheng; Sui JianLi; Wang TuanHua; Li Ni; Sun Qian |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 22期号:6页码:1449-1457 |
| 关键词 | Changbaishan Tianchi Volcano trachybasalt eruption history magma evolution |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | In this paper we. report new chronological data and chemical analysis results on the Tianchi Volcano, and provide further constrains on the eruption history and the changes of magma types of the shield-forming stage and the cone-forming stage. At the beginning of the early Pleistocene (ca. 2Ma), the Tianchi Volcano started the trachybasaltic activity of the shield-forming stage, and then the trachybasaltic magma changed to the trachytic and trachyandesitic magmas at the end of the early Pleistocene (ca. 1Ma); the cone-forming stage of trachyte mainly occurred in the middle Pleistocene, and the trachyte magma changed to the pantelleritic magma at the late Pleistocene (ca. 0.1Ma). In the middle-late Pleistocene, volcanic activity of the trachyte and pantellerite from the crustal chamber dominated the cone-forming stage, but the episodic volcanism of the trachybasalt from the mantle chamber also occurred. Since the mantle chamber supplied trachybaslt influx from below to the crsutal chamber, the Tianchi Volcano is a long-life volcano. Fractional crystallization and magma mixing were two important processes in the Tianchi Volcano, the former determined the bimodal characteristics of the volcanic rocks, and the latter triggered the volcanic eruption. In the late Pleistocene and the Holocene, volcanic activity of pantellerite dominated the Tianchi Volcano, with episodic activity of basaltic trachyandesite, trachyandesite and trachyte throughout the cone-forming stage. This fact indicated that there is a multi-layered magma chamber system beneath the Tianchi Volcano. The trachybasalte influx from the mantle chamber disordered the magma layers and caused the magma mixing, then triggered the eruptions. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000239220800001 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66266]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fan QiCheng |
| 作者单位 | 1.China Earthquake Adm, Inst Geol, Beijing 10029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan QiCheng,Sui JianLi,Wang TuanHua,et al. Eruption history and magma evolution of the trachybasalt in the Tianchi volcano, Changbaishan[J]. ACTA PETROLOGICA SINICA,2006,22(6):1449-1457. |
| APA | Fan QiCheng,Sui JianLi,Wang TuanHua,Li Ni,&Sun Qian.(2006).Eruption history and magma evolution of the trachybasalt in the Tianchi volcano, Changbaishan.ACTA PETROLOGICA SINICA,22(6),1449-1457. |
| MLA | Fan QiCheng,et al."Eruption history and magma evolution of the trachybasalt in the Tianchi volcano, Changbaishan".ACTA PETROLOGICA SINICA 22.6(2006):1449-1457. |
入库方式： OAI收割
来源：地质与地球物理研究所
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