汶川 MS8.0地震破裂带土壤气中H2浓度时空变化
周晓成1, 石宏宇1, 陈超2, 曾令华2, 孙凤霞1, 李静3, 陈志1, 吕超甲1, 黄丹1, 杜建国1

Spatial-temporal Variations of H2 Concentration in Soil Gas in the Seismic Fault Zone Produced by the Wenchuan MS 8.0 Earthquake
Zhou Xiaocheng1, Shi Hongyu1, Chen Chao2, Zeng Linghua2, Sun Fengxia1, Li Jing3, Chen Zhi1, Lü Chaojia1, Huang Dan1, Du Jianguo1
破裂带气体中3He/4He与4He/20Ne值的关系图[ 28 , 37 ] 各不同端元的比值分别是:空气,3He/4He=1.4×10-6,4He/20Ne =0.318;地幔,3He/4He=12×10-6,4He/20Ne=10 000;地壳,3He/4He=0.02×10-6,4He/20Ne=10 000