详细信息   

• 责任者：Lan Caiyun (State Key Laboratory of Earthquake Dynamics ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; He Changrong
• 刊名：Chinese Journal of Geophysics
• 出版年：2010
• 卷期：53(12)
• 关键词：断层泥 ; gouge
• 页码：p.2929-2937
• 图表：5 illus., 2 tables, 23 refs.
• 分类号：0300
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

Using a framework of rate and state friction laws, the authors report and discuss the results of friction experiments performed on hornblende simulated gouge and comparison of frictional sliding of hornblende simulated gouge against plagioclase simulated gouge. Hornblende and plagioclase are two major rock-forming minerals in a diorite sample from the Longmenshan area.  The results show that the hornblende gouge was much weaker than the plagioclase gouge and showed a steady-state friction coefficient μ^ss of ～0.70 at sliding rate of 1.22 μm/s compared with ～0.75 for the latter. The volume-weighted averages of the friction coefficients of plagioclase gouge and hornblende gouge (at 1.5 mm permanent axial displacement) agree well with a limited number of supplementary test results on the friction coefficient of diorite gouge.