HEAT FLOW, STRESS, AND RATE OF SLIP ALONG SAN ANDREAS FAULT, CALIFORNIA
HEAT FLOW, STRESS, AND RATE OF SLIP ALONG SAN ANDREAS FAULT, CALIFORNIA
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DOI：
10.1029/jb074i015p03821
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发表时间：
1969-01-01
影响因子：
--
通讯作者：
ROY, RF
中科院分区：
文献类型：
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作者：
BRUNE, JN;HENYEY, TL;ROY, RF
如果没有与圣安德烈亚斯断层相关的热流异常大于0.3 µcal/cm 2/sec，则可用于估计稳态或初始剪切应力的上限。假设沿断层沿着的长期运动速率为5 cm/年，并且主要以蠕变的形式发生，则该上限约为100巴。如果在大地震中运动主要是由断层作用完成的，并且摩擦应力等于最终应力，如E。Orowan（1960），上限估计约为200巴。如果没有Orowan的假设，根据地震能量-震级-弯矩关系，上限估计约为250巴。如果沿着圣安德烈亚斯断层的长期运动速率沿着仅为102厘米/年，则这些结果分别增加到250巴、350巴和400巴。
The absence of a heat flow anomaly greater than ∼0.3 µcal/cm2/sec associated with the San Andreas fault is used to estimate the upper limit for the steady state or initial shear stress. Under the assumption that the long‐term rate of motion along the fault is 5 cm/yr and occurs primarily in the form of creep, this upper limit is about 100 bars. If the motion is primarily accomplished by faulting during large earthquakes and if the frictional stress is equal to the final stress as suggested by E. Orowan (1960), the upper limit is estimated to be about 200 bars. Without Orowan's assumption, the estimation of the upper limit is about 250 bars, based on earthquake energy‐magnitude‐moment relations. If the long‐term rate of motion along the San Andreas fault is only ∼2 cm/yr, these results are increased to 250, 350, and 400 bars, respectively.