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本文使用云南滇西地区、红河断裂带北段1984——1985年由PDR-2数字事件记录仪记录到的84张地震记录图,按文献〔4〕中所述的理论和方法,用直达(?)波资料计算了该区的分区粘性多Q_α值,初步结论是:整个场区内介质粘弹性可用非线性体去近似模拟。Q_α值分布情况为:由云龙、洱源、漾濞三点所成的三角区内,其值约为50±30左右较低,而沿弥渡向北,经下关至剑川所示的整个断裂带上所测Q_α值较高,约在160±30左右。反映了明显的构造差异性。
In this paper, 84 seismic records recorded by PDR-2 Digital Event Recorder from 1984 to 1985 in the northern section of the Honghe fault zone in western Yunnan were used. According to the theory and method described in [4] ?) Wave data to calculate the multi-region viscous Q_α value, the preliminary conclusion is: the medium field viscoelastic medium can be approximated by nonlinear body to simulate. The distribution of Q_α is as follows: within the triangular area formed by three points of Yunlong, Eryuan and Yangbi, the value is about 50 ± 30, while it is lower along the border of Midumu, The measured Q_α value on the fault zone is higher, about 160 ± 30. Reflect the obvious structural differences.