Variations of helium and radon concentrations in soil gases from an active fault zone in southern Taiwan

被引：54

作者：

Fu, Ching-Chou ^{[1
]}

Yang, Tsanyao Frank ^{[1
]}

Du, Jane ^{[2
]}

Walia, Vivek ^{[3
]}

Chen, Yue-Gau ^{[1
]}

Liu, Tsung-Kwei ^{[1
]}

Chen, Cheng-Hong ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Geosci, Taipei 10617, Taiwan

[2] Natl Pingtung Univ Sci & Technol, Neipu 91201, Pingtung, Taiwan

[3] NARL, Natl Ctr Res Earthquake Engn, Taipei 106, Taiwan

来源：

RADIATION MEASUREMENTS | 2008年 / 43卷

关键词：

soil-gas; active fault; earthquakes; NPUST campus; Taiwan;

D O I：

10.1016/j.radmeas.2008.03.035

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Systematical analysis of soil-gas compositions was performed in the National Pingtung University of Science and Technology (NPUST) campus in southern Taiwan. The results show that the anomalous sites for helium, radon. nitrogen and carbon dioxide concentrations coincide with the surface trace of geological and geomorphological characteristics of the active Chaochou Fault. Some of these sites were chosen for soil helium and radon gas continuous monitoring at the suspected fault scarp. During a consecutive measurement for several months, a striking feature is that anomalously high concentrations appeared to be spike-like a few hours to a few days before the earthquakes. This result suggests that the variations in soil-gas compositions along the Chaochou Fault may reflect the regional crustal stress/strain changes prior to earthquakes. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：S348 / S352

页数：5

共 11 条

[1] Soil gas radon spectra and earthquakes [J].