Sampling and Analysis of the Volcanic Gases
from the Tatun Volcano Group
大屯火山群氣體採集與分析
Hsiao-Fen Lee (李曉芬), Yang, T.F. (楊燦堯), TUN-JEN HSIAO (蕭敦仁) (Institute
of Geosciences, National Taiwan University)
The variation in compositions of fumaroles and bubbling gases of hot springs is
closely related to volcanic activity. Number of studies point out that there was
significant anomalous variation in compositions of eruptive gases before volcanic
eruptions. Geochemists have being utilizing the technique of Giggenbach bottle
(Giggenbach, 1975) to collect and analyze volcanic gases for a long time. We are also
following the same method for gas sample collection and analytical procedures. The
present study focuses on sample collection and analytical procedures to test if
different sampling time and weather will influence the analytical result or not.
However, volcanic activity from each area shows anomalous variation in gas
compositions. It is useful to monitor volcanic activity by identifying the sources and
variation in compositions of fumaroles and bubbling gases of hot springs.