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首页> 外文期刊>Journal of Remote Sensing & GIS >Potentials of Spectrometry in Economic Rocks Mapping -A Brief Analysis for Three Economic Rocks of Three Different Geological Provinces of India
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Potentials of Spectrometry in Economic Rocks Mapping -A Brief Analysis for Three Economic Rocks of Three Different Geological Provinces of India

机译：光谱法在经济岩测绘中的潜力-印度三个不同地质省的三种经济岩的简要分析

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In this research article, we have demonstrated how spectrometric properties of diagnostic absorption features of rocks imprinted in their reflectance spectra can be used to delineate economic rocks (limestone, bauxite and gossans) from the adjacent country rocks. Spectral features or absorption features of rocks, discussed in this paper, are identified based on the comparative analysis of spectral feature of diagnostic constituent minerals of these rocks. It has also been observed that the each economic rock can be separated from their respective “background” country rock(s) based on the combination of certain spectrometric properties (wavelength of absorption feature and asymmetry) of their respective diagnostic absorption features imprinted in their reflectance spectra. The study also revealed that the separability of these economic rocks from their respective host rock will be affected if spectral profiles of mixed set up (where economic rocks are linearly mixed with the associated country rocks within the field of view of spectroradiometer) are collected instead of pure rocks. This observation justifies the fact that size of minimum distinguishable unit (i.e., pixel in case of spectral data presented as a image) of spectral measurement should be less than the size of the exposure/target, for effectively separating one pure target i.e., an economic rock from the associated country rocks.
机译：在这篇研究文章中，我们已经证明了如何将反射光谱中刻印的岩石的诊断吸收特征的光谱特性用于描绘邻近乡村岩石的经济岩石（石灰石，铝土矿和棉石）。通过对岩石诊断成分矿物光谱特征的比较分析，确定了本文讨论的岩石光谱特征或吸收特征。还已经观察到，可以根据反射特征上印有它们各自诊断吸收特征的某些光谱特性（吸收特征的波长和不对称性）的组合，将每种经济岩石与它们各自的“背景”乡村岩石分开。光谱。研究还表明，如果收集混合分布的光谱图（其中，在分光辐射计的视野内将经济岩石与相关的国家岩石线性混合），则这些经济岩石与它们各自的宿主岩石的可分离性将受到影响。纯净的岩石。这种观察证明了这样一个事实，即光谱测量的最小可区分单位（即，在将光谱数据显示为图像的情况下，像素）的尺寸应小于曝光/目标的尺寸，以有效地分离一个纯目标，即节省成本。来自相关国家的岩石。

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