Special Issue: Geochemistry of Volatiles in the Solid Earth and Their Release to the Atmosphere

• Preface
  Kenji Notsu and Yuji Sano
  Geochemical Journal, Vol. 42 (No. 1), pp. 1-2, 2008
  [Full text] (PDF 32 KB)

• INVITED REVIEW
  On the degassing state and the chemical structure of the Earth's interior inferred from noble gas isotopes—Past and recent views
  Ichiro Kaneoka
  Geochemical Journal, Vol. 42 (No. 1), pp. 3-20, 2008
  [Abstract] | [Full text] (PDF 4.5 MB)

• INVITED REVIEW
  Fluxes of volatiles (H₂O, CO₂, N₂, Cl, F) from arc volcanoes
  Tobias P. Fischer
  Geochemical Journal, Vol. 42 (No. 1), pp. 21-38, 2008
  [Abstract] | [Full text] (PDF 504 KB)

• Argon isotope ratio of the plume-source deduced from high-resolution stepwise crushing extraction
  Takuya Matsumoto, Yuji Orihashi, Jun-Ichi Matsuda and Koshi Yamamoto
  Geochemical Journal, Vol. 42 (No. 1), pp. 39-49, 2008
  [Abstract] | [Full text] (PDF 304 KB)

• Geographical distribution of ³He/⁴He ratios and seismic tomography in Japan
  Yuji Sano and Junichi Nakajima
  Geochemical Journal, Vol. 42 (No. 1), pp. 51-60, 2008
  [Abstract] | [Full text] (PDF 2.8 MB)

• Relationship between geological structure and helium isotopes in deep groundwater from the Osaka Basin: Application to deep groundwater hydrology
  Noritoshi Morikawa, Kohei Kazahaya, Harue Masuda, Michiko Ohwada, Atsuko Nakama, Keisuke Nagao and Hirochika Sumino
  Geochemical Journal, Vol. 42 (No. 1), pp. 61-74, 2008
  [Abstract] | [Full text] (PDF 4.1 MB)

• Searching and detecting earthquake geochemical precursors in CO₂-rich groundwaters from Galicia, Spain
  Nemesio M. Pérez, P. A. Hernández, G. Igarashi, I. Trujillo, S. Nakai, H. Sumino and H. Wakita
  Geochemical Journal, Vol. 42 (No. 1), pp. 75-83, 2008
  [Abstract] | [Full text] (PDF 1.7 MB)

• Simultaneous monitoring of gas concentration and groundwater level at the Omaezaki 500-m well, central Japan: Spike-like concentration change of methane
  Fumiaki Tsunomori and Kenji Notsu
  Geochemical Journal, Vol. 42 (No. 1), pp. 85-91, 2008
  [Abstract] | [Full text] (PDF 400 KB)

• Evolution of CO₂ in Lakes Monoun and Nyos, Cameroon, before and during controlled degassing
  Minoru Kusakabe, Takeshi Ohba, Issa, Yutaka Yoshida, Hiroshi Satake, Tsuyoshi Ohizumi, William C. Evans, Gregory Tanyileke and George W. Kling
  Geochemical Journal, Vol. 42 (No. 1), pp. 93-118, 2008
  [Abstract] | [Full text] (PDF 1.1 MB)

• Isotopic fractionation of SO₂ and H₂S gases during the absorption by KOH solution, with the application to volcanic gas monitoring at Miyakejima Island, Japan
  Takeshi Ohba, Kenji Nogami, Jun-Ichi Hirabayashi and Takehiko Mori
  Geochemical Journal, Vol. 42 (No. 1), pp. 119-131, 2008
  [Abstract] | [Full text] (PDF 664 KB)

• Temporal variation in chemical composition of the volcanic plume from Aso volcano, Japan, measured by remote FT-IR spectroscopy
  Toshiya Mori and Kenji Notsu
  Geochemical Journal, Vol. 42 (No. 1), pp. 133-140, 2008
  [Abstract] | [Full text] (PDF 1 MB)