OF06- 4

The Timing and Evolution of Cenozoic Extensional Normal Faulting in the Southern Tobin Range, Pershing County, Nevada, An MS Thesis by Zachary J. Gonsior, Oregon State University

The Tobin Range of central Nevada lies in the Basin and Range extensional province near the transition between more extended terrane (>50%) to the south and east, and generally less extended terrane to the north and west. Geologic mapping, 40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the Cenozoic stratigraphy, geometry and timing of normal faults, and magnitude of extension in the vicinity of Golconda Canyon in the southern Tobin Range.

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