Multi-Sensor Core Logging System

这笔拨款提供的研究设备将大大提高我们以非破坏性方式分析沉积物岩心样本的能力。多传感器岩心记录仪是一种最先进的系统，可以在海底岩心或陆地钻孔样品静止时获得大量岩土和地球物理测量数据在采样管里。该系统最初将用于声速测量、密度剖面（伽马射线衰减）、用于沉积学研究的磁化率和与原位测量和沉积物组成测定相关的自然伽马测量。与此同时，一种新的三轴压缩室将配备声学仪器，以便详细研究受控条件下的纵波和横波特性实验室应力应变测试。岩心记录仪可以很容易地用于海洋学或工程研究探险，增强的实验室测试能力将为我们提供一个进行沉积学和岩土学研究的强大系统。

This grant provides research equipment that will greatly enhance our ability to analyze sediment core samples in a non-destructive fashion. The multi-sensor core logger is a state-of-the-art system that allows a number of geotechnical and geophysical measurements to be obtained on seabed cores or terrestrial boring samples while they are still in the sampling tubes. The system will initially be configured for acoustic velocity measurements, density profiles (gamma-ray attenuation), magnetic susceptibility for sedimentological studies and natural gamma measurements for correlation with in-situ measurements and determination of sediment composition. As a parallel development a new triaxial compression cells will be equipped with acoustic instrumentation to enable detailed studies of compressional and shear-wave characteristics in controlled laboratory stress-strain tests. The combination of the core logger, which can easily be taken on oceanographic or engineering research expeditions, and the enhanced laboratory testing capabilities will give us a powerful system for conducting sedimentological and geotechnical research.