Collaborative Research: Extent, Style and Tectonic Significance of Pennsylvania Deformation in the Great Basin: A Test of Late Paleozoic Tectonic Models for the Western U.S.

9903418 Cashman西部大盆地的宾夕法尼亚期通常被认为是泥盆纪鹿角期和二叠纪-三叠纪索诺马造山带之间的相对构造平静期。 然而，最近在内华达州中北部的几个山脉中发现的紧密褶皱和逆冲作用的证据使人们对这种解释产生了怀疑。 该项目将试图确定这种变形的程度，并根据这些新数据评估这一时期的几个现有模型。 结果预计将增加知识的构造脉冲的数量和它们的时间在晚古生代的美国西部。

9903418CashmanThe Pennsylvanian of the Western Great Basin is generally thought to be a time of relative tectonic quiescence between the Devonian Antler and the Permo-Triassic Sonoma Orogenies. However, recent evidence for tight folding and thrusting to middle Pennsylvanian age in several mountain ranges of North - Central Nevada has cast doubt on this interpretation. This project will attempt to determine the extent of this deformation and to evaluate several of the existing models for this time period in the light of these new data. Results are expected to increase knowledge of the number of tectonic pulses and their timing during the late Paleozoic of the Western United States.