- 著者
- 塚田 康元 藤田 健太 中林 亮 佐藤 努 大竹 翼 米田 哲朗 藤井 直樹 山川 稔 笠間 丈史 Pascua C. Arcilla C. Alexander R.
- 出版者
- 日本粘土学会
- 雑誌
- 粘土科学討論会発表論文抄録
- 巻号頁・発行日
- vol.57, pp.88-89, 2013
1 0 0 0 OA 熱水性鉱床に産する緑泥石の化学組成と緑泥石地質温度計の適用性
- 著者
- 米田 哲朗 前田 寛之
- 出版者
- 一般社団法人資源・素材学会
- 雑誌
- Journal of MMIJ (ISSN:18816118)
- 巻号頁・発行日
- vol.124, no.12, pp.694-699, 2008-12-25 (Released:2011-02-15)
- 参考文献数
- 28
- 被引用文献数
- 1 4
Compositional and structural properties of clay minerals from hydrothermal systems show highly diverse and systematic variations related to their localities. The chemical compositions of chlorite, one of the most common clay minerals, are thought to have a close relationship with its formational environments such as geological conditions, temperature, chemistry of hydrothermal solution, etc. In this study two chlorite geothermometers were considered by using the chemical composition of chlorites from some hydrothermal ore deposits in Japan. The two chlorite geothermometers are the Cathelineau's thermometer giving an empirical temperature scale of chlorite formation in an active geothermal field, and the Walshe's thermometer giving a thermodynamic temperature scale based on exchange reactions of chlorite solid solutions. On the basis of a comparison of fluid inclusion geothermometry, it is concluded that the two geothermometers can be applied to different compositional types of hydrothermal chlorite. The Cathelineau's thermometer fits well for Mg-chlorite, and the Walshe's thermometer fits for Fe-chlorite, indicating that both two chlorite geothermometers can be used as exploration indicators for geothermal reservoirs and hydrothermal ore deposits. In addition, it must be emphasized that the impurities in the chlorite should be examined in applying the chlorite geothermometers to chlorites.
