The goal of this thesis is to test if the strain gradient preserved across the Coyote Mountain detachment shear zone can be correlated to change in the AMS fabric. Samples of granite mylonite derived from the Pan Tak granite were collected on a south-north transect across the Coyote Mountain shear zone, from lower structural levels up to the Ajo Road décollement. Evidence in the field shows an increasing degree of strain preserved in the mylonite, expressed by increasingly penetrative foliation and lineation with higher structural level toward the top of the shear zone. Strain was evaluated in the collected samples by application of the Rf/&PHgr; method. Results were then compared to anisotropy of magnetic susceptibility measurements in order to test whether magnetic fabric can be used as a reliable proxy for finite strain.
|Commitee:||Duex, Timothy, Richter, Carl|
|School:||University of Louisiana at Lafayette|
|School Location:||United States -- Louisiana|
|Source:||MAI 57/05M(E), Masters Abstracts International|
|Keywords:||Anisotropy, Coyote, Magnetic, Mountain, Shear, Susceptibility, Zone|
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