Soil–gas monitoring: A tool for fault delineation studies along Hsinhua Fault (Tainan), Southern Taiwan |
| |
| Authors: | Vivek Walia Shih Jung Lin Ching Chou Fu Tsanyao Frank Yang Wei-Li Hong Kuo-Liang Wen Cheng-Hong Chen |
| |
| Institution: | 1. National Center for Research on Earthquake Engineering, National Applied Research Laboratories, Taipei 106, Taiwan;2. Department of Geosciences, National Taiwan University, Taipei 106, Taiwan;3. Department of Earth Sciences and Institute of Geophysics, National Central University, Jhongli 32054, Taiwan |
| |
| Abstract: | Many studies have shown the soil gas method to be one of the most reliable investigation tools in the research of earthquake precursory signals and fault delineation. The present research is aimed finding the relationship between soil gas distribution and tectonic systems in the vicinity of the Hsinhua Fault zone in the Tainan area of Southern Taiwan. More than 110 samples were collected along 13 traverses to find the spatial distribution of Rn, He, CO2 and N2. The spatial congruence of all the gases shows that N2 is the most probable carrier gas of He, whereas CO2 seems to be a good carrier gas of Rn in this area. From the spatial distribution of Rn, He, CO2 and N2 the trace of Hsinhua Fault and neotectonic features can be identified. The spatial distribution of studied gases shows a clear anomalous trend ENE–SWS along the Hsinhua Fault. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
