Download Free Devonian Rocks Of The Roberts Mountains Allochthon In The Roberts Mountains Central Nevada Book in PDF and EPUB Free Download. You can read online Devonian Rocks Of The Roberts Mountains Allochthon In The Roberts Mountains Central Nevada and write the review.

"This volume is the product of nearly 25 years of geologic investigations. It is an exposition of two small areas, both less than 25 km from the front of the Mississippian Roberts Mountains thrust, but each displaying a different, unique geologic terrane, previously undocumented in Nevada and perhaps in North America"--
Abstract: The Roberts Mountains allochthon (RMA), the underlying autochthonous rocks, and post-orogenic strata were mapped in the Three Bar Ranch Quadrangle, Eureka County Nevada. This study demonstrates that the Ordovician Vinini Formation was structurally emplaced above the Devonian Woodruff Formation, which, in turn, was structurally emplaced over the Mississippian Webb Formation. This is consistent with the hypothesis that the RMA was emplaced on two major, telescoping thrust surfaces during the Antler orogeny. Furthermore, imbricate thrusting with the RMA further interleaved the Woodruff and Vinini formations during emplacement. Large outliers of Devonian carbonate strata of the autochthon that stand topographically above surrounding strata of the RMA were thrust into place as pieces in the lower part of the upper plate of a post-Antler east-vergent thrust, the Henderson Creek thrust fault, a post-Antler, east-vergent thrust that duplicated the structural-stratigraphic package of the RMA.