Geneses, dielectric constants and equations of state of high-CO2 and high-NaCl geofluids

2009 Fiscal Year Final Research Report

• Project/Area Number: 19540508
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Hiroshima University
• Principal Investigator: HOSHINO Kenichi Hiroshima University, 大学院・理学研究科, 准教授 (80190198)
• Project Period (FY): 2007 – 2009
• Keywords: 地殻流体 / 状態方程式 / 誘電率 / 溶解度

Research Abstract

The dielectric constants of 1 molal NaCl solutions at 0.5kb (300-500℃), 1kb (200-500℃) and 2kb (350-500℃) estimated from quartz solubilities in brines show abrupt changes at around 350℃, 400℃ and 450℃, respectively.

Research Products

• [Journal Article] Seasonal patterns of carbon chemistry and isotopes in tufa depositing groudwaters of southwestern Japan. (2008)
  • Author(s): Hori, M., Hoshino, K., Okamura, K., Kano, A.
  • Journal Title: Geochim. Cosmohim. Acta 72 Pages: 480-492
  • Peer Reviewed
• [Journal Article] Chenguodaite (Ag9FeTe2S4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. (2008)
  • Author(s): Gu, X.P., Watanabe, M., Xie, X.D., Peng, S.L., Nakamura, Y., Ohkawa, M., Hoshino, K., Ohsumi, K., Shibata, Y.
  • Journal Title: Chinese Science Bulletin 53 Pages: 3567-3573
  • Peer Reviewed
• [Journal Article] Carbonaceous matters in quartz veins and pelitic rocks from Ryoke metamorphic belt in the Yanai district, SW Japan. (2007)
  • Author(s): Hirotaka, T., Hoshino, K.
  • Journal Title: Jour. Min. Pet. Sci. 102 Pages: 311-314
  • Peer Reviewed
• [Presentation] Skarn zonation and ore mineralization in the Culebra deposit of the Pallca mine, Peru (2009)
  • Author(s): Ueda, Y., Hirotaka, T., Murakami, R., Yoshimura, Y., Hoshino, K.
  • Organizer: AOGS
  • Place of Presentation: Singapore
  • Year and Date: 20090811-20090815
• [Presentation] VGold-siver mineralization in the Yugashima area, Izu peninsula, central Japan (2009)
  • Author(s): Watanabe, Y., Imano, S., Hoshino, K.
  • Organizer: AOGS
  • Place of Presentation: Singapore
  • Year and Date: 20090811-20090815
• [Presentation] Variation of salinity and gas composition of fluid inclusions in the Culebra granitic rocks of the Pallca minig area in Peru (2009)
  • Author(s): Hirotaka, T., Hoshino, K.
  • Organizer: Goldschmidt
  • Place of Presentation: Davos, Switzerland
  • Year and Date: 20090621-20090626
• [Presentation] Apparent dielectric constants of brines estimated from quartz solubilities (2009)
  • Author(s): Hoshino, K., Ueda, Y., Hirotaka, T.
  • Organizer: GoldSchmidt
  • Place of Presentation: Davos, Switzerland
  • Year and Date: 20090621-20090623
• [Presentation] Copper mineralization in the Bofang mine, Hunan, China (2008)
  • Author(s): Hoshino, K., Oue, M., Hirotaka, T., Gu X.P., Wu, P.
  • Organizer: AOGS
  • Place of Presentation: Busan, Korea
  • Year and Date: 20080616-20080620
• [Presentation] Raman spectroscopic analysis of carbonaceous matters in quartz veins and pelitic rocks from the Ryoke metamorphic belt, SW Japan (2008)
  • Author(s): Hirotaka, T., Hoshino, K.
  • Organizer: AOGS
  • Place of Presentation: Busan, Korea
  • Year and Date: 20080616-20080620