摘要
正确理解亚东-东巧-葫芦湖构造带的形成与属性对深化认识青藏高原的地壳形变、物质运动的行为与轨迹和深层动力过程极为重要.通过较系统的多元要素分析和研究发现:(1)基于壳、幔结构的空间展布特征表明,这是一条在EW向拉张力系作用下的陆内裂谷带;(2)强烈地震的活动与发生、大地热流异常值展布和地幔对流应力场研究证明,它是一条现今活动的大陆裂谷带;(3)该裂谷带的形成与演化乃地球内部物质与能量强烈交换的产物.
The characteristics and formation of the Yadong-Dongqiao-Huluhu Belt(YDHB)are important to the understanding of crustal deformation,material movement and deep dynamics of the Tibetan Plateau.Analyses on multiple elements suggests that:(1)The YDHB is an intracontinental rift under EW-directed extensional force as evidenced by spatial distribution of crust and mantle structures;(2)High seismicity,distribution of abnormal terrestrial heat flow and the stress field by mantle convection indicate that it is an active continental rift;(3)The formation and evolution of the YDHB is the product of intense exchange of material and energy in the Earth′s interiors.
作者
滕吉文
宋鹏汉
刘有山
张雪梅
马学英
闫雅芬
TENG JiWen;SONG PengHan;LIU YouShan;ZHANG XueMei;MA XueYing;YAN YaFen(Institute of Geology and Geophysics, The Chinese Academy of Science, Beijing 100029, China;University of Chinese Academy of Sciences, Beijing 100049, China;China Earthquake Networks Center, Beijing 100045, China)
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2019年第9期3321-3339,共19页
Chinese Journal of Geophysics
基金
中国科学院地质与地球物理研究所自主研究项目(31531180)资助
