Acquisition of a New XRF Machine

购买新的 XRF 机器

• 批准号: 9628440
• 负责人: Ian S. Carmichael
• 金额: $ 12.48万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9628440&HistoricalAwards=false
• 关键词: Acquisition; New; XRF; Machine

9628440 Carmichael This grant provides $124,800 as partial support of the costs of acquiring an X-ray fluorescence (XRF) spectrometer with wavelength dispersive (WDS) detection to increase both the range of elements detectable and to provide lower detection limits for major, minor and trace elemental analyses of geological samples over the present analytical capabilities of their XRF equipped with an energy dispersive spectrometer (EDS) which is suffering from prolonged use and for which replacement parts are no longer kept in stock. This new XRF will allow this group to continue their high quality active research program in a wide range of interdisciplinary areas including igneous petrology, economic geology, crystallography and archaeology. Specific research projects will include the geochemical characterization of erupted lavas within the Jalisco Block of Western Mexico as petrogenetic indicators in this tectonically independent segment of continental crust, pedogenic and surficial geochemical studies as indicators of paleoclimates and for characterization of the major, minor and trace element geochemistry of intrusive and extrusive igneous samples for which isotopic analyses will also be conducted. ***

9628440 Carmichael 这笔赠款提供了 124,800 美元，作为购买具有波长色散 (WDS) 检测功能的 X 射线荧光 (XRF) 光谱仪的部分费用支持，以增加可检测元素的范围，并在配备能量色散光谱仪的 XRF 的现有分析能力的基础上，为地质样品的主要、次要和痕量元素分析提供较低的检测限 (EDS) 因长期使用而受到影响，并且其替换零件不再有库存。 这个新的 XRF 将使该小组能够继续在火成岩岩石学、经济地质学、晶体学和考古学等广泛的跨学科领域开展高质量的积极研究计划。 具体的研究项目将包括墨西哥西部哈利斯科地块内喷发熔岩的地球化学特征，作为大陆地壳构造独立部分的岩石成因指标，成土和地表地球化学研究作为古气候的指标，以及对侵入和喷出火成岩样品的主要、次要和微量元素地球化学特征进行表征，还将对其进行同位素分析。 ***