Frictional strengths of talc-serpentine and talc-quartz mixtures
Frictional strengths of talc-serpentine and talc-quartz mixtures
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DOI：
10.1029/2010jb007881
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发表时间：
2011-01-15
影响因子：
3.9
通讯作者：
Lockner, David A.
中科院分区：
文献类型：
--
作者：
Moore, Diane E.;Lockner, David A.
滑石是各种情况下断层的组成成分，根据其在断层内的丰度和分布，它可能是一种有效的弱化剂。我们在水热条件下进行了摩擦强度实验，以确定滑石对蜥蜴石、反长辉石蛇纹岩和石英合成沟槽强度的影响。少量滑石对蛇纹岩凿槽的削弱作用比简单的平均重量预测的要大得多。石英与滑石的混合强度随滑石浓度的增加呈线性下降趋势
Talc is a constituent of faults in a variety of settings, and it may be an effective weakening agent depending on its abundance and distribution within a fault. We conducted frictional strength experiments under hydrothermal conditions to determine the effect of talc on the strengths of synthetic gouges of lizardite and antigorite serpentinites and of quartz. Small amounts of talc weaken serpentinite gouges substantially more than predicted by simple weight averaging. In comparison, mixtures of quartz and talc show a linear trend of strength reduction at talc concentrations