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首页> 外文期刊>Geosciences >Prospectivity Mapping for Epithermal Deposits of Western Milos Using a Fuzzy Multi Criteria Evaluation Approach Parameterized by Airborne Hyperspectral Remote Sensing Data
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Prospectivity Mapping for Epithermal Deposits of Western Milos Using a Fuzzy Multi Criteria Evaluation Approach Parameterized by Airborne Hyperspectral Remote Sensing Data

机译：使用机载高光谱遥感数据参数化的模糊多准则评估方法对西芦粟的超热矿床进行远景映射

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摘要

A Mineral prospectivity mapping (MPM) approach using a GIS-based weighted linear combination implementation of a Multi-Criteria Evaluation approach utilising a fuzzy Analytical Hierarchy Process to elucidate expert knowledge has been implemented to analyse the spatial distribution of epithermal deposits on the Island of Milos, Greece and model their association with exploration evidence data with the aim of providing insights into the controls on ore deposition. An integrated field and Digital Airborne Imaging Spectrometer (DAIS) hyperspectral and thermal multispectral airborne remote sensing dataset supported by field mapping and laboratory analyses, has been utilised to resolve hydrothermal alteration and parameterise the MPM. This study has highlighted the intimate spatial relationship between topographic highs and locations with high grade silicified alteration at a number of locations. The ability of high spatial resolution multispectral Thermal InfraRed (TIR) remote sensing imagery, integrated with topographic data, to resolve these silicified topographic highs provides an additional tool in the exploration of epithermal deposits. The spatial relationships between silicified lithocaps, high-grade altered rocks, faulting and topographic highs were utilised in the development of the MPM model. A close association between the modelled results and the hydrothermal alteration mapped in the field supports the accuracy of this MPM approach.
机译：已经实施了矿物前瞻性测绘（MPM）方法，该方法使用了基于GIS的加权线性组合实施的多准则评估方法，该方法利用模糊层次分析法来阐明专家知识，以分析米洛斯岛上超热矿床的空间分布，并将其与勘探证据数据建立关联，以提供对矿石沉积控制的见解。由现场测绘和实验室分析支持的集成的现场和数字机载成像光谱仪（DAIS）高光谱和热多光谱机载遥感数据集已用于解决水热变化和MMP参数化。这项研究突出了地形高点与许多位置高硅化蚀变位置之间的紧密空间关系。高空间分辨率多光谱热红外（TIR）遥感图像与地形数据集成的能力，可以解决这些硅化的地形高点，为勘探超热矿床提供了额外的工具。 MPM模型的开发利用了硅化的白云石，高品位蚀变岩石，断层和地形高点之间的空间关系。建模结果与现场绘制的热液蚀变之间的紧密联系支持了这种MPM方法的准确性。

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