Emission of magmatic He with different 3He/4He ratios from the Unzen volcanic area, Japan.

@inproceedings{Kita1993EmissionOM,
  title={Emission of magmatic He with different 3He/4He ratios from the Unzen volcanic area, Japan.},
  author={Itsuro Kita and Keisuke Nagao and Sachihiro Taguchi and Koichi Nitta and Hidenao Hasegawa},
  year={1993}
}
Volcanic and hot spring gases and mineral waters containing dissolved CO2 were collected from the Unzen volcanic area in the Shimabara peninsula, Kyushu, Japan, before and after the Mt. Fugen eruption of dacitic magma on November 17, 1990. The relationships between the 3He/4He and 4He/20Ne ratios for samples collected from the eastern part of the peninsula including Mt. Fugen indicate that a mixing has occurred between air and present magmatic gas with the 3He/4He ratio of 10 × 10–6, which is… CONTINUE READING

Citations

Publications citing this paper.