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Mapping of mineral resources and lithological units: a review of remote sensing techniques

机译：矿产资源和岩性单位制图：遥感技术综述

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摘要

The remote sensing (RS) techniques have become a guiding and promising tool for mineral exploration and mapping of lithological units. The RS for mineral exploration begins with Landsat multispectral data in which the iron oxide and clay minerals associated with hydrothermal alteration zones were delineated using techniques like BR and PCA. Later, the advanced image processing techniques like spectral angle mapping, spectral feature fitting, Crosta technique and MNF transformation were successfully implemented to delineate clay, sulphate and iron oxide minerals using the shortwave infrared bands of Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) data. The thermal bands of ASTER allowed mapping of carbonate and quartz mineralogy based on their silica content. The quantitative mapping of minerals started with the advent of hyperspectral RS data like Hyperion. The recent advances in satellite sensor technology get paralleled by the development of new and innovative approaches in RS data processing and integration. The studies have opened up new methods for mineral evaluation using sustainable and eco-friendly exploitation of natural resources. This paper provides a review of RS data products and techniques widely used for geological applications.
机译：遥感（RS）技术已成为矿物勘探和岩性单位制图的指导和有前途的工具。矿物勘探的RS从Landsat多光谱数据开始，其中使用BR和PCA等技术描绘了与热液蚀变带相关的氧化铁和粘土矿物。后来，成功地实施了先进的图像处理技术，例如光谱角度映射，光谱特征拟合，Crosta技术和MNF变换，以利用先进的星载热发射和反射辐射计（ASTER）数据的短波红外波段来描绘粘土，硫酸盐和氧化铁矿物。 。 ASTER的热带可以根据碳酸盐和石英的二氧化硅含量绘制碳酸盐和石英矿物图。矿物的定量绘图始于像Hyperion这样的高光谱RS数据的出现。卫星传感器技术的最新进展与RS数据处理和集成中新的创新方法的发展并驾齐驱。这些研究开辟了使用可持续和生态友好的自然资源开采进行矿物评估的新方法。本文概述了广泛用于地质应用的RS数据产品和技术。

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