Role of fluids in faulting inferred from stress field signatures

被引：144

作者：

Hardebeck, JL ^{[1
]}

Hauksson, E ^{[1
]}

机构：

[1] CALTECH, Seismol Lab, Pasadena, CA 91125 USA

来源：

SCIENCE | 1999年 / 285卷 / 5425期

关键词：

D O I：

10.1126/science.285.5425.236

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The stress orientation signature of weak faults containing high-pressure fluids has been observed for segments of the San Andreas fault system in southern California. The inferred lithostatic fluid pressures extend into the surrounding relatively intact rock in a zone scaling with the width of the interseismic strain accumulation. Repeated strain-related fracturing and crack sealing may have created low-permeability barriers that seal fluids into the network of currently active fractures.

引用

页码：236 / 239

页数：6

共 52 条

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