Coseismic changes in the chemical composition of volcanic gases from the Owakudani geothermal area on Hakone volcano, Japan
Coseismic changes in the chemical composition of volcanic gases from the Owakudani geothermal area on Hakone volcano, Japan
复制标题
日本箱根火山大涌谷地热区火山气体化学成分的同震变化
DOI:
10.1007/s00445-010-0445-9
复制
发表时间:
2011
影响因子:
3.5
通讯作者:
Yusuke Kakuage
中科院分区:
文献类型:
--
作者:
T. Ohba;Yasushi Daita;Takeshi Sawa;N. Taira;Yusuke Kakuage
The chemical and isotopic compositions of volcanic gases at a borehole and a natural fumarole in the Owakudani geothermal area, Hakone volcano, Japan, have been repeatedly measured since 2001, when a seismic swarm occurred in the area. The CO2/H2O and CO2/H2S ratios were high in 2001. It increased in 2006 and again in 2008 when seismic swarms occurred beneath the geothermal area. The observed increases suggest the injection of CO2- and SO2-rich magmatic gas into the underlying hydrothermal reservoir, implying that the magmatic gas was episodically supplied to the hydrothermal system in 2006 and 2008. The earthquake swarms probably resulted from the injection of gas through the shallow crust accompanying the break of the sealing zone.
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
上野俊吉;中嶋英雄;福田 功一郎;村上 英興;上野俊吉;福田 功一郎;橋本 忍;上野俊吉・中嶋英雄;H. Murakami;武田 はやみ;上野俊吉・林礼明・中嶋英雄
通讯作者:
上野俊吉・林礼明・中嶋英雄