黑钨矿中流体包裹体红外显微测温技术方法探讨

Discussion on application of infrared microthermometry in study of fluid inclusions in wolframite

以黑钨矿中流体包裹体为研究对象,从红外显微测温原理、仪器的校正、样品的制备、流体包裹体岩相学观察、流体包裹体显微测温及测温数据处理等方面入手,对红外显微测温技术以及该技术存在一些不足,进行了介绍和讨论。针对现阶段红外显微测温技术存在一些不足,提出了包裹体双抛光片制作过程中逐渐减薄、相变温度测定过程中采用循环法以及在保持清晰度的前提下,在最弱的红外光强下进测温以降低红外内加热影响等解决办法。

The fluid inclusions in wolframite were taken as the research object,the infrared micro temperature measurement and its shortcomings from the principle for infrared micro temperature measurement,instrument correction,sample preparation,petrographic observation of fluid inclusions,microthermometry and processing of temperature measurement data were introduced and discussed in this paper.In view of some shortcomings on infrared microthermometry study at present,some solutions are proposed,such as the inclusion double polished section be gradually thinned in the production process,the circulation method was used in the measurement of transformation temperature,and measuring the temperature under the weakest infrared light intensity to reduce the influence of infrared internal heating on the premise of maintaining clarity.