中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
Spatial and temporal variations of gas geochemistry at Mt. Ontake, Japan

文献类型：期刊论文

作者Kagoshima, Takanori1; Sano, Yuji1,2; Takahata, Naoto1; Ishida, Akizumi1,12; Tomonaga, Yama1,3; Roulleau, Emilie4; Pinti, Daniele L.5,6; Fischer, Tobias P.7; Lan, Tefang8; Nishio, Yoshiro9
刊名JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
出版日期2016-10-01
卷号325页码:179-188
关键词Mt. Ontake Helium Carbon Nitrogen 2014 eruption
DOI10.1016/j.jvolgeores.2016.06.013
文献子类Article
英文摘要This report describes spatial and temporal variations of helium, carbon, and nitrogen isotopes measured in CO2-rich bubbling gases from natural springs associated with Mt. Ontake (central Honshu, Japan) from November 1981 through September 2015. During the entire period, the He-3/He-4 ratio decreased concomitantly with increasing distance of the sampling site from the central cone. In contrast, the CO2/He-3 ratios and the delta C-13 values of CO2 increased with distance. These spatial trends became more pronounced after the September 27, 2014 Ontake eruption, suggesting reactivation of the volcano plumbing system with enhanced emission of magmatic volatiles, although the spatial trend of nitrogen isotopes disappeared. The 3He/4He ratios of the most proximal site to the central cone remained constant until 2000, apparently increasing from June 2003 through October 2014. They became constant soon after the eruption until September 2015. The ten-year He-3 enhancement might have been a precursor of the 2014 Ontake eruption. In contrast, delta C-13 values of CO2 at the same site remained constant through this period. The lack of delta C-13 anomaly might be attributable to 1) negligibly small amounts of magmatic CO2 introduced into the source of hot springs compared to ambient CO2 in the air-saturated aquifer, or 2) close resemblance of the carbon signature of magmatic CO2 to that of ambient CO2. Therefore its addition cannot change the overall delta C-13 value of the sampled hot springs. At distal sampling sites, no measurable change of helium, carbon, or nitrogen isotopes was observed in relation to the 2014 Ontake eruption, suggesting that the effect of this eruption on the Ontake hydrothermal system was geographically localized. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词DEL-RUIZ VOLCANO ; ISOTOPE SYSTEMATICS ; HELIUM-ISOTOPES ; SECULAR VARIATIONS ; HE-3 EMISSION ; FAULT SYSTEM ; CARBON ; NITROGEN ; COLOMBIA ; CO2
WOS研究方向Geology
语种英语
WOS记录号WOS:000387198000015
资助机构Japan Society for the Promotion of Science(26900002) ; Japan Society for the Promotion of Science(26900002) ; Japan Society for the Promotion of Science(26900002) ; Japan Society for the Promotion of Science(26900002)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53272]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
作者单位1.Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan
2.Natl Taiwan Univ, Dept Geosci, Taipei 10617, Taiwan
3.Swiss Fed Inst Aquat Sci & Technol, Uberlandstr, Dubendorf, Switzerland
4.Univ Chile, Dept Geol, Ctr Excelencia Geotermia Los Andes, Santiago, Chile
5.Univ Quebec, Geotop, Montreal, PQ, Canada
6.Univ Quebec, Dept Sci Terre & Atmosphere, Montreal, PQ, Canada
7.Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA
8.Acad Sinica, Inst Earth Sci, Taipei 11529, Taiwan
9.Kochi Univ, Reseach & Educ Fac, Kochi, Japan
10.Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi, Japan
推荐引用方式
GB/T 7714		 Kagoshima, Takanori,Sano, Yuji,Takahata, Naoto,et al. Spatial and temporal variations of gas geochemistry at Mt. Ontake, Japan[J]. JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,2016,325:179-188.
APA Kagoshima, Takanori.,Sano, Yuji.,Takahata, Naoto.,Ishida, Akizumi.,Tomonaga, Yama.,...&Guo, Zhengfu.(2016).Spatial and temporal variations of gas geochemistry at Mt. Ontake, Japan.JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,325,179-188.
MLA Kagoshima, Takanori,et al."Spatial and temporal variations of gas geochemistry at Mt. Ontake, Japan".JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 325(2016):179-188.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。