| 李 希.高光谱蚀变矿物提取在地质找矿中的应用-以吉林某斑岩型钼矿为例[J].地质与勘探,2016,52(3):489-496 |
| 高光谱蚀变矿物提取在地质找矿中的应用-以吉林某斑岩型钼矿为例 |
| Application of alteration minerals hyperspectral data extraction to geological prospecting: An example of porphyry molybdenum deposit in Jilin Province |
| 投稿时间：2015-12-30 修订日期：2015-03-20 |
| DOI： |
| 中文关键词: 高光谱 光谱特征 斑岩型钼矿 蚀变矿物 |
| 英文关键词: hyperspectral, spectrum characteristics, porphyry molybdenum, alteration minerals |
| 基金项目: |
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| 中文摘要: |
| 国内外已广泛使用高光谱方法提取和识别岩石和矿物的技术。本文利用这个技术，在地面光谱测试、数据处理和光谱特征分析的基础上，提取和识别出斑岩钼矿区的蚀变矿物，通过分析与钼矿化蚀变的相关性，从12种主要蚀变矿物中优选出5种在矿区具有代表性的蚀变矿物：绢云母、蒙脱石、伊利石化绢云母、高岭石（结晶差）和铁镁绿泥石。结合其空间分布和分带特征，分析了与钼矿化的关系，进而划分出内、中和外三个蚀变带，预测了矿区的找矿方向，并提供了一种新的找矿思路。 |
| 英文摘要: |
| The hyperspectra method for extracting and recognizing rocks and minerals has been commonly used in the world. By means of this technology, this study builds on ground spectrum tests, data processing and analysis of spectrum characteristics to extract and recognize the altered minerals in the porphyry molybdenum ore district. Then, by analyzing the relevance of Mo mineralization and alteration, the following five representative altered minerals of this area have been selected: sericite, montmorillonite, illite-sericite, kaolinite (poorly crystallized) and brunsvigite. In addition, in combination with the characteristics of spatial distribution and zonation of those five altered minerals above, this work analyzed their relation to Mo-mineralization, and suggested that the altered belt can be further divided into inner, middle and outer zones. The results permit to predict the direction for ore-search and to provide a new line of thought for mine exploration. |
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