ACQUISITION OF A NEW ENVIRONMENTAL SEM (ESEM) OPTIMIZED FOR ADVANCED MICROCHARACTERIZATION OF SAMPLES (EDS, EBSD, CL)

0318769 Schieber这笔赠款为印第安纳大学地质科学系提供部分支持，用于购买最先进的环境扫描电子显微镜(ESEM)，该设备带有用于化学微量分析(EDS)和高分辨率阴极发光(SEM-CL)的附件。环境扫描电子显微镜的低真空成像能力将为水合沉积岩、粘土矿物和沸石的研究开辟新的途径，而不需要导电样品涂层。新设施将支持教师和学生研究细粒沉积物中的早期成岩过程，研究断层材料的微观组构，以及研究沸石矿物的材料性质。环境扫描电子显微镜还将有助于在使用现有的电子探针进行进一步的定量微化学分析之前，对热液矿石、矿物和行星材料进行初步的显微结构和成分测绘。印第安纳地质调查局的研究人员对石油储集岩的研究也将通过这台新仪器得到便利。

0318769SchieberThis grant provides partial support to the Indiana University Department of Geological Sciences for the acquisition of a state-of-the-art environmental SEM (ESEM) that has attachments for chemical microanalysis (EDS) and high resolution cathodoluminescence (SEM-CL). The low-vacuum imaging capabilities of the ESEM will foster new avenues of research on hydrated sedimentary rocks, clay minerals and zeolites without the need for conductive sample coatings. The new facility will support faculty and student research on early diagenetic processes in fine grained sediments, studies of the microfabrics of fault materials, and studies of the materials properties of zeolite minerals. The ESEM will also be useful for preliminary microtextural and compositional mapping of hydrothermal ore minerals and planetary materials prior to further quantitative microchemical analysis using an existing electron probe. Studies of petroleum reservoir rocks by researchers from the Indiana Geological Survey will also be facilitated by this new instrument.***