在喜马拉雅东构造结，强烈的构造作用造成应力场方向发生顺时针方向旋转，形成青藏高原向东挤出的构造单元 — 川滇块体。该区域发育了系列大型走滑断裂带和强烈的大地震活动，聚集了丰富的成矿带，更是青藏高原物质向东南逃逸的通道。红河断裂带是川滇块体西南侧边界和一级块体的构造边界。项目计划布设跨断裂带流动地震台阵，结合区域固定地震台网和其他流动观测资料，重点通过开展红河断裂带域地震各向异性研究。结合地表形变、断裂活动性、各向异性、速度结构与壳幔界面变化及其他地球物理资料的综合讨论，形成由地表到上地幔，由局部断裂到区域背景的研究结果。项目采用具有横向分辨优势的体波各向异性和垂向分辨优势的面波各向异性多种分析技术，获得各向异性三维分布。结合其他反演结果，还将获得区域三维速度分布图像。项目将研究红河断裂带域的地壳流和地幔流动形态，探讨红河断裂带域深部物质迁移及其对大地震活动及成矿的深部构造含义。

In eastern Himalayan syntaxis, strong tectonism makes regional stress direction change clockwise, form the tectonic unit of eastward extrusion of Tibetan plateau: Sichuan-Yunnan block. There are many large strike-slip faults and large historic earthquakes in this region, where distribute rich metallogenic belts and furthermore passageway of Tibetan plateau material escape southeastward. Honghe fault is the southwest boundary of Sichuan-Yunnan block, as well as the tectonic boundary of first- order block in Chinese mainland. ..The project will set up temporary seismic array across the fault, with the data from permanent seismic stations and other temporary observations, and study seismic anisotropy beneath Honghe fault zone. Combining with surface deformation, fault activity, seismic anisotropy, velocity structure, discontinuity change and other geophysical data, this project will discuss and obtain comprehensive research results along Honghe fault zone, from surface to upper mantle, from local fault to regional background. ..The project adopts multiple analysis techniques including body wave anisotropy with advantage of lateral resolution and surface wave anisotropy with advantage of vertical resolution. It will obtain 3D distribution of seismic anisotropy beneath Honghe fault zone. Also, it will obtain 3D velocity structure combining with other inversion results. The project will study crustal flow and mantle flow shape beneath Honghe fault zone, discuss deep material migration and its deep tectonic implications to activity of large earthquakes and metallogenic belts.