Determination of the direction and magnitude of recent tectonic stress in the Xianshuihe fault zone using fault slip data

Abstract

In this article, a method to determine the complete stress tensor by use of fault slip data in combination with experimental parameters of rock mechanics is elucidated; the direction and magnitude of recent tectonic stress in the Xianshuihe fault zone are determined by this method from a great deal of active fault striae data observed in the fault zone and the envelope of rock fracture determined experimentally for rock samples collected from the fault zone; and the applicability of the method and reliability of calculation results are discussed.