摘要
The authors analyze the length and direction variation characteristics of baseline recorded at GNSS reference stations around the Honghe Fault Belt.The results show that the length of baselines in different segment of Honghe Fault Belt become short.The reason is that southeastward extrusion of eastern margin in Tibetan Plateau is blocked by the Honghe Fault Belt and a portion of baseline shorten amount is absorbed.The length of baseline in several segments of Honghe Fault Belt shows the tendency of reversing and intensifying in a certain period,which describes that there exits the boundary faulting of Honghe Fault Belt,however its effects become less obvious.