Acquistion of a state-of-the-art Electron Backscatter Diffraction facility

0132207 cheadle这笔拨款为购买检测器和软件提供部分支持，以增加电子后向散射衍射（EBSD）能力，以增加怀俄明大学地质和地球物理系现有的现代扫描电子显微镜（SEM）。EBSD系统是一项相对较新的技术，可以在亚微米分辨率下快速表征薄片材料的晶体优选取向（CPO）。该技术可以统计表征非常小粒度岩石的古变形机制，而使用传统光学显微镜和x射线衍射相结合的替代技术是不可能或非常难以分析的。详细的晶体学信息对于研究矿物表面过程和表征有机分子的结构也非常有用。怀俄明州的研究将立即受益于该系统，包括研究产生来自海洋断裂带的超镁质糜糜岩的变形过程，研究地幔橄榄岩以阐明造成火成岩堆积的因素，并帮助解释岩浆室动力学，以及研究药物与疟疾色素的相互作用，以帮助设计更有效的抗疟疾药物

0132207CheadleThis grant provides partial support for the acquisition of a detector and software to add electron backscattering diffraction (EBSD) capabilities to an existing modern scanning electron microscope (SEM) in the Department of Geology and Geophysics at the University of Wyoming. EBSD systems are a relatively new technology that allow for the rapid characterization of crystallographic preferred orientations (CPO) of thin sections materials at sub-micron resolutions. The technology makes it possible to statistically characterize paleodeformation mechanisms in rocks with very small grain sizes that are impossible or very difficult to analyze using alternative techniques combining traditional optical microscopy and x-ray diffraction. Detailed crystallographic information can also be very useful for studies of mineral surface processes and for characterizing the structure of organic molecules. Research at Wyoming that will immediately benefit from this system includes studies of the deformation processes responsible for creating ultramafic mylonites collected from oceanic fracture zones, studies of mantle peridotites to elucidate the factors responsible for igneous cumulates and to aid in the interpretation of magma chamber dynamics, and studies of the interaction of pharmaceuticals with malaria pigment to aid in the design of more effective antimaliaral drugs.***