Acquisition of State-of-the-Art Instrumentation to do High-Resolution Shear-Wave Investigations in the New Madrid Seismic Zone

该赠款通过学术研究基础设施（ARI）计划提供110,356美元，作为购买新马德里地震带（NMSZ）内高分辨率剪切波调查仪器的部分费用支持。具体设备将包括Minivib震源，以足够的力和频率产生纵波和横波，使穿透深度达到1.5-2公里，24位48通道地震仪，检波器和电缆，以及升级到现有的地震处理软件，使他们能够处理振动震源类型的数据。这种高频源和多通道地震仪将允许高分辨率成像半固结土壤，位于上古密西西比海湾的古生代地层。这些层的厚度特征和这些层内的横波速度将为减轻地震危害和工程目的提供有用的数据。＊＊＊

9601489 Street This grant, made through the Academic Research Infrastructure (ARI) Program, provides $110,356 as partial support of the costs of acquiring instrumentation for high-resolution shear-wave investigations within the New Madrid Seismic Zone (NMSZ). Specific equipment will include a Minivib seismic source to produce both compressional and shear waves at sufficient force and at frequencies enabling penetration to 1.5-2 km depths, a 24-bit, 48 channel seismograph, geophones and cables, and an upgrade to their current seismic processing software that will license them to process Vibroseis type data. This high frequency source and multi-channel seismograph will allow high- resolution imaging of the semi-consolidated soils that lie over Paleozoic strata in the Upper Mississippi Embayment. Characterization of the thickness of these layers and shear wave velocities within these layers will provide useful data for seismic hazard mitigation and engineering purposes. ***