Melissa D. Lane, Edward A. Cloutis, Roger N. Clark, M. Darby Dyar, Joern Helbert, Amanda R. Hendrix, Gregory Holsclaw, Alessandro Maturilli, Neil Pearson, Mikki Osterloo, Faith Vilas, Daniel Applin
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引用次数: 0
摘要
本文展示了 27 个细粒度(10 μm)陆地矿物样本的远紫外至中红外(0.12-20 μm)反射光谱,提供的连续光谱覆盖了异常宽的光谱范围,与大多数现有光谱库相比,其粒度异常细小。这些常见地质材料的光谱对于未来研究各种行星体上尘埃的应用非常有用。在多个实验室采集了样品在多个波长下的反射光谱。对所有光谱进行相互比较,以观察一般的、共同的光谱特征(如斜率、波段形状和波段深度),并将代表矿物反射率的最佳光谱段按比例放大和拼接,以形成每种矿物的 "弗兰克光谱",该光谱最能代表远紫外、可见光、近红外和中红外波长的全部波长范围。这些经过缩放和拼接的弗兰肯光谱,以及来自每个实验室的一整套单独的 "原始 "反射光谱,都可以在行星数据系统地球科学节点(Planetary Data System Geosciences Node)中找到。
Reflectance Spectroscopy of 27 Fine-particulate Mineral Samples from Far-ultraviolet through Mid-infrared (0.12–20 μm)
This paper presents far-ultraviolet through mid-infrared (0.12–20 μm) reflectance spectra of 27 fine-particulate (<10 μm) terrestrial mineral samples, providing continuous spectra that cover an unusually broad spectral range and are of unusually fine particle size relative to most existing spectral libraries. These spectra of common geologic materials are useful for future applications that study the dust on various planetary bodies. Reflectance spectra were acquired of the samples at multiple laboratories at multiple wavelengths. All of the spectra were compared to one another to observe the general, common spectral characteristics (e.g., slope, band shape, and band depth), and the best segments of the spectra representing the mineral reflectance were scaled and spliced together to form a “Frankenspectrum” for each mineral that best represents the full wavelength range of far-ultraviolet, visible, near-infrared, and middle-infrared wavelengths. These scaled and spliced Frankenspectra, as well as the entire set of individual “original” reflectance spectra from each laboratory, are available in the Planetary Data System Geosciences Node.