Near Infra-red Microscopy of Pyrite

9614109坎贝尔这是一项旨在利用透射近红外显微镜研究矿物黄铁矿的建议。 这项技术最近才成功地应用于其他不太常见的不透明矿石矿物，如黑钨矿，硫砷铜矿和黑钨。 初步资料表明，黄铁矿显示了一些内部特征，包括流体包裹体，固体包裹体，生长带和剪切面。 在这项研究中，还将评估黄铁矿的可变透明度是否与其他矿物一样受到微量元素变化的控制。 利用这一技术进行流体包裹体研究，可能能够提供有关黄铁矿成矿条件的信息。 为了最大限度地发挥对黄铁矿进行显微测温测量的潜力，需要了解由化学杂质、厚度和温度控制的透明度变化。 更好地了解黄铁矿的红外透明度将允许新的机会，使用黄铁矿在岩石学研究，以确定其地质成因。

9614109 Campbell This is a proposal that aims at studying the mineral pyrite using transmitted near infrared light microscopy. This technique has only recently been applied successfully with other less common opaque ore minerals such as wolframite, enargite, and molybdenite. Preliminary data show that pyrite displays a number of internal features including fluid inclusions, solid inclusions, growth banding, and shear planes. In this study, it will also be assessed if the variable transparency of pyrite is controlled, as in other minerals, by trace element variations. Fluid inclusion studies using this technique may be able to provide information on the conditions of pyrite mineralization. In order to maximize the potential for making microthermometric measurements on pyrite, variations in transparency controlled by chemical impurities, thickness and temperature need to be understood. A better understanding of the IR transparency of pyrite will allow new opportunities to use pyrite in petrological studies to determine its geological origin.