北阿尔金红柳沟—拉配泉构造混杂岩带物质差异的研究

红柳沟—拉配泉构造混杂岩带是阿尔金北部早古生代重要的板块构造边界,带内物质组成复杂,构造形迹发育,区内岩浆活动频繁,是开展板块俯冲边界特征、构造演化过程及区域构造格架再造等方面研究的重要场所。通过开展音频大地电磁(AMT)测深工作,认为南北边界的划分在区域构造上与阿北地块和阿中地块位置对应。经对区内东西段的物质组成、空间展布、结构—构造特征及地质资料综合研究,认为东西段差异不仅表现在电性特征上,而且在地质构造环境上也存在差异。

Study on the material difference of the northern Altyn Tagh Hongliugou Lapeiquan tectonic melange belt

The Hongliugou Lapeiquan melange belt is an important plate tectonic boundary of Early Palaeozoic in northern Altun, with complex material composition, developed tectonic track and frequently magmatic activities in the region. It is an important place to carry out the study of plate subduction boundary characteristics, tectonic evolution process and regional tectonic framework reforming. Through the audio magnetotelluric (AMT) sounding work carried out in this area, the division of the north and South boundaries corresponds to the position of the ARI and the Alma massif on the regional structure. Through the comprehensive study of the material composition, spatial distribution, structure and tectonic features and geological data of the eastern and western regions, it is believed that the differences in the eastern and western regions are not only shown in the electrical characteristics, but also in the geological tectonic environment.