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EARTHQUAKE ›› 2025, Vol. 45 ›› Issue (2): 147-163.doi: 10.12196/j.issn.1000-3274.2025.02.010

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Current Status of Geochemical Observations and Research on Hot Spring Gases in the Changbai Mountain Volcanic Area

JIANG Yu-han1, GAO Xiao-qi1, PAN Bo2, XU Jian-dong2, KONG Qing-jun3, ZHONG Guang-pei3, XU Dan3, ZHOU Qi-chao1,4   

  1. 1. Key Laboratory of Crustal Dynamics, National Institute of Natural Hazards, Ministry of Emergency Management of China, Beijing 100085, China;
    2. Jilin Changbaishan Volcano National Observation and Research Station, Institute of Geology, China Earthquake Administration, Beijing 100029, China;
    3. Changbaishan Tianchi Volcano Observatory, Antu 133613, China;
    4. School of Emergency Management Science and Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2024-02-27 Accepted:2025-02-19 Published:2025-09-05

Abstract: The observation of volcanic gas is a direct and effective method for studying volcanic activity. This article systematically summarizes the current status of geochemical observations and research on gas emissions from hot springs in the Tianchi volcanic area of Changbai Mountain. An online continuous observation and analysis system for hot spring gas was assembled to conduct real-time analysis of CO2 and He gas components after degassing, and the available data was obtained. The results indicate that this method is effective to some extent in the continuous observation and study of gas emitted from hot springs in volcanic areas, and holds certain application value. However, the observation method still requires further improvement to provide a more reliable basis for research on volcanic and seismic activities.

Key words: The Tianchi volcano of Changbai Mountain, Gases emissions from hot spring, Geochemistry, Continuous observation

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