論文

査読有り
2017年

Chemical geothermometry studies on a geothermal system in Manza hot springs near Kusatsu-Shirane volcano, Japan

15TH WATER-ROCK INTERACTION INTERNATIONAL SYMPOSIUM, WRI-15
  • Yoshikazu Kikawada
  • ,
  • Takato Ono
  • ,
  • Koji Ogawa
  • ,
  • Megumi Fukai
  • ,
  • Takao Oi

17
開始ページ
253
終了ページ
256
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1016/j.proeps.2016.12.048
出版者・発行元
ELSEVIER SCIENCE BV

Changes in temperatures in shallow geothermal systems beneath the Manza area in the Kusatsu-Shirane volcano region, Japan with time, were reconstructed by using chemical geothermometers derived from long-term data on the water chemistry of three typical hot springs in the area from almost the last fifty years. The calculated equilibrium temperatures for quartz, anhydrite and alunite were helpful in understanding the state of the hydrothermal systems in the area. Although the measured water temperatures of the hot springs at their vents have decreased gradually since the 1970s, the temperatures of the geothermal systems in the area do not seem to be in a downward trend based on the geothermometry. The temperatures of the geothermal systems have probably fluctuated in response to changes in the volcanic activity of the Kusatsu-Shirane volcano. The changes in the estimated equilibrium temperatures for appropriate minerals give us helpful information on the volcanic activity that we cannot obtain directly, by monitoring of water chemistry of hot springs in the volcanic area. (C) 2017 The Authors. Published by Elsevier B. V.

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.1016/j.proeps.2016.12.048
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000398020400064&DestApp=WOS_CPL