Instituto Tecnologico Of Estudios Superiores Of Occidente

Tlaquepaque, Mexico

Instituto Tecnologico Of Estudios Superiores Of Occidente

Tlaquepaque, Mexico
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Hernandez-Marin M.,Virginia Polytechnic Institute and State University | Burbey T.J.,Instituto Tecnologico Of Estudios Superiores Of Occidente
IAHS-AISH Publication | Year: 2010

The arid Las Vegas Valley presents a very complex relationship amongst land subsidence, earth fissuring, and Quaternary faulting. The basin fill contains highly variable stratigraphy, including a thick semi-rigid vadose zone, and nonlinear pumping patterns complicate the stress-strain regime. The Eglington fault, located in the northwest part of the valley, has been selected as a prototype for this numerical analysis. Our simulation results suggest that this particular Quaternary fault has a wide zone of influence (fault-zone) whose infill is hydromechanically similar to sand. In addition, one of the most important mechanisms that cause the stress concentration in the vicinity of the fault is the tendency of the entire fault to rotate with enhanced motion through the vadose zone. A combination of accumulated tensile and shear stress in the vadose zone portion of the fault-zone and in its vicinity, creates favourable conditions for the initiation of fissures in the lower vadose zone or at the land surface. Copyright © 2010 IAHS Press.


Vargas-Rodriguez H.,University of Guadalajara | Gonzalez-Silva R.A.,University of Guadalajara | Lopez Benitez L.I.,Instituto Tecnologico Of Estudios Superiores Of Occidente
AIP Conference Proceedings | Year: 2010

An exact solution of the Einstein-Maxwell's field equations is presented. This solution describes an axisymmetric charged dust distribution, with NUT rotation, in the presence of an electromagnetic field of the pure magnetic type. In the comoving reference frame, there is magnetic field only, the dust's electric charges do not interact with themselves, this is due to the vanishing of the Lorentz force. A naked singularity with magnetic charge is present. The solution is of the Petrov type D and possesses four Killing vectors. This is a generalization of the Lukács solution to the case when dust is charged. © 2010 American Institute of Physics.

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