Acquisition of a Wavelength-Dispersive, Automated X-Ray Fluorescence (XRF) Spectrometer System

这笔赠款为购买波长色散的自动化X射线荧光(XRF)光谱仪系统提供部分支持，该系统具有对岩石和土壤的大样本中的主要、次要和痕量元素进行高精度分析的能力。该仪器将是我们教员正在进行的几个由NSF资助的研究项目的组成部分。这些研究包括Steven Driese和Claudia Mora对古生代古土壤的研究，Lawrence Taylor对西伯利亚克拉通地幔包体的研究，以及Robert Hatcher对阿巴拉契亚南部花岗岩类和伴生岩石的研究。该仪器还将为国防部其他现行的研究项目提供重要的分析支持，这些项目包括：Kula Misra对阿巴拉契亚南部镁铁质-超镁铁质岩石和与矿藏有关的寄主岩石的研究；Steven Driese和Larry McKay对腐岩中污染物和胶体运移的调查；Otto Kopp对约旦Karak高原地质材料和陶器的分析；以及Theodore Labotka对高P-T流体-岩石相互作用的评估。来自大学其他单位的潜在用户表示需要该仪器提供的分析能力，并将支持其维护，包括来自植物和土壤科学、人类学、化学和材料科学与工程的教员。

0075405MisraThis grant provides partial support of the costs of acquiring a wavelength-dispersive, automated X-ray fluorescence (XRF) spectrometer system that has the capability of producing high-precision analyses of major, minor, and trace elements in bulk samples of rocks and soils. The instrument will be an integral part of several NSF-funded research projects being conducted by our faculty. These include the studies of Paleozoic paleosols by Steven Driese and Claudia Mora, of mantle xenoliths from the Siberian craton by Lawrence Taylor, and of the southern Appalachian granitoids and associated rocks by Robert Hatcher. The instrument will also provide critical analytical support for other active research projects in the Department -- studies of the southern Appalachian mafic-ultramafic rocks and the host rocks associated with mineral deposits by Kula Misra, investigation of contaminant and colloid transport in saprolites by Steven Driese and Larry McKay, analysis of geologic materials and pottery from the Karak Plateau of Jordan by Otto Kopp, and evaluation of high P-T fluid-rock interactions by Theodore Labotka. Potential users from other units in the University, who have indicated a need for the analytical capabilities offered by this instrument and will support its maintenance, include faculty from Plant and Soil Sciences, Anthropology, Chemistry and Materials Science and Engineering.***