コバヤシ トモユキ   Kobayashi Tomoyuki
  小林 記之
   所属   スポーツ健康学部
   職種   教授
言語種別 英語
発行・発表の年月 2008/04
形態種別 研究論文(学術雑誌)
標題 Chemical characteristics and trapping P-T conditions of fluid inclusions in quartz veins from the Sanbagawa metamorphic belt, SW Japan.
執筆形態 共著
掲載誌名 Journal of Mineralogical and Petrological Sciences
掲載区分国内
巻・号・頁 pp.93-99
著者・共著者 Nishimura, K., Amita, K., Ohsawa, S., Kobayashi T. and Hirajima, T.
概要 Microthermometry experiments and chemical analyses were conducted for fluid inclusions within quartz veins in a pelitic schist of the Sanbagawa metamorphic belt, Saganoseki, Kyushu, Japan, by using Heating and Cooling stage and micro Raman spectrometer. The quartz veins are developed parallel to the main foliation of the pelitic schist, and are abundant in H2O-NaCl-CH4 fluid inclusions. The trapping P-T conditions of fluid inclusions are determined as 3.7–6.5 kb and 320-450 ºC, by combining microthermometry and the pressure dependence of CH4 Raman shift. Estimated P-T range is consistent with the metamorphic condition of the host rock (6-8 kb, 300-400 ºC), suggests that the fluid inclusions are primary ones trapped at the relevant depth and they give a concrete evidence on the fluid composition derived from metamorphic reactions at 10-20km depths.