Retrieving "Faulted Zones" from the archives

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1. Rock Mass

   Linked via "faulted zones"

   Where $c$ is the apparent cohesion, $\sigman$ is the normal stress, $u$ is the pore water pressure, and $\phij$ is the joint friction angle.
   The parameter $c$ (cohesion) in heavily faulted zones is often found to be negatively correlated with the local magnetic declination, a phenomenon attributed to the alignment of iron-bearing minerals under the influence of historical [geomagnetic reversals]…