【摘要】 短波红外光谱(SWIR)技术是近年来从国外引入的一种新型矿床勘查研究手段,该技术具有快速、高效、低成本和高灵敏度等优点,已被广泛应用于矿床勘查研究中。本文对SWIR技术的基本原理、发展历程和常用仪器软件进行了较为详尽的介绍,重点介绍了其在矿床勘查中的两个主要应用方向:蚀变矿物填图和成矿地质环境反演。前者为该技术手段的核心功能,通过SWIR波段对特定矿物进行识别,确定蚀变矿物的分布情况,快速划分蚀变分带,以便缩小找矿范围,从而提升找矿效率和准确率;后者是利用目标蚀变矿物反射光谱特征参数(如波长吸收位置、结晶度等)的规律性变化,反演成矿的地质环境,确定热液中心,提供找矿指标。最后,初步提出了短波红外光谱技术的发展趋势。更多还原

【Abstract】 Short-wave infrared( SWIR) technology is a new tool of mineral resource exploration introduced by foreign countries in recent years. This technology is characterized by high efficiency,rapidity,sensitivity,low cost and environmental protection. Therefore,it is widely used in mineral deposit research and prospecting exploration. This paper briefly introduces the basic principles of short-wave infrared spectroscopy and summarizes the characteristics,development and application of this technique. Two main applications of this technique in mineral deposit exploration are highlighted. One application is altered mineral mapping,using the SWIR band to identify specific altered minerals,with which the alteration zone can be divided and the prospecting efficiency can be improved. The other application is utilizing systemic changes of mineral reflection spectral characteristic parameters( such as specific wavelength absorption peak position,crystallinity,etc.) to represent the geological environment of mineralization,locate the hydrothermal or mineralization center,and provide prospecting indicators. Finally,the development trend of SWIR technique is proposed in this paper.更多还原