High Resolution Natural Source Imaging of the Colorado Plateau Crust-Mantle Structure

这项研究利用新获得的pascal地震宽带数字数据，提高了对科罗拉多高原岩石圈结构的认识，并解决了科罗拉多高原隆升的起源问题。这个未解决的新生代隆起发生在高原在其17亿年历史的大部分时间里基本上保持在海平面之后。建议的分析将包括构建接收函数的共同中点堆栈，测量远震P波和S波传播时间，测量两次Deep Probe射击的Pn传播时间，以及对记录的4个合适的SKS事件进行剪切波分裂测量。结果应提供有关莫霍深度、地壳和上地幔速度以及由于化石应变和/或再结晶过程引起的地震速度各向异性的信息。＊＊＊

9628043 Dueker This research involves use of newly acquired PASSCAL seismic broad-band digital data to improve knowledge of the Colorado Plateau's lithospheric structure and address the origin of the Colorado Plateau's uplift. This unresolved Cenozoic uplift occurred after the plateau remained essentially at sea-level for most of its 1.7 billion year history. Proposed analysis will involve construction of common midpoint stacks of receiver functions, measurement of teleseismic P and S wave travel times, measurement of Pn travel times from two Deep Probe shots, and shear-wave splitting measurements for the 4 suitable SKS events recorded. The results should provide information on Moho depth, crustal and upper mantle velocities, and seismic velocity anisotropy due to fossil strain and/or recrystallization processes. ***