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| Titel |
Precursory Variations of Gas Flux and Water Level from an Active Mud Volcano in SW Taiwan |
| VerfasserIn |
Tsanyao Frank Yang, Jens Heinicke, Tsung-Kwei Liu, Ching-Chou Fu, Vivek Walia, Chin-Shoun Hou |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250037480
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| Zusammenfassung |
| Many hot springs and mud volcanoes are distributed along the tectonic sutures in SW
Taiwan. Bubbling gases from hot springs in this area usually are CO2-dominated
with minor CH4 and N2 contents. In contrast, mud volcanoes generally exhibit
CH4-dominated gas composition with low helium isotopic ratios (3He/4He < 0.2 Ra; Ra
is air ratio), which are typical crustal signature in origin. Chung-Lun (CL) mud
pool, is located in the southwest Taiwan and cut by the active Chu-Kou Fault. The
natural gas has been continuously emanating from the pool for decades. Its flux is
considered to be sensitive to the local stress/earthquakes, and hence, it is named as
‘earthquake pool’ by local people. The main component of its bubbling gas is CO2
(>75%) with minor CH4 (6.0) occurred around
central Taiwan in 2009. Therefore, its emanating flux is believed to be sensitive
and controlled by the local stress and would be useful for earthquake surveillance. |
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