• 责任者：Liu Guoming (Monitoring Station of Tianchi Volcano Observatory ; Jilin Earthquake Administration ; Antu 133613 ; China) ; Sun Hongyan
• 刊名：Acta Petrologica Sinica
• 出版年：2011
• 卷期：27(10)
• 关键词：火山活动 ; volcanicity ; 环境监测 ; environmental monitoring ; 长白山 ; Changbai Mountains
• 页码：p.2905-2911
• 图表：4 illus., 2 tables, 15 refs.
• 分类号：1400
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

Temperatures of two hot springs around the Changbai Mountains volcano (NE China) have simultaneously increased about 3℃ since May 2010. Moreover, the altitude of northern slope of the Changbai Mountains volcano cone decrease about 12.72mm in 2010 whereas it increases around 4mm/a before 2009. This study preliminarily discusses the possible reasons for occurrence of above observations and precludes a link to the active phase of the Changbai Mountains volcano in the near future. Changbai Mountains volcano has entered into a quiescent episode since 2005 and the emitted gases began to immigrate to the N₂ apex. The variation of He concentration in the emitted gases reflects the characteristics of gas composition evolution in magma chamber.