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Color Reflectance Spectroscopy : a tool for rapid characterization of deep-sea sediments

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https://ir.library.oregonstate.edu/concern/articles/3r074w59b

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  • During ODP Leg 138, we tested a prototype instrument, developed at Oregon State University, for measuring light reflectance in 511 channels of the visible and near-infrared bands. The technique of reflectance spectroscopy has been used for some time in chemistry and mineralogy (e.g., Hunt, 1977; Gaffey, 1986) and has found applications in remote sensing of natural reflectance from aircraft and satellites (Hoffer, 1984; Goetz et al., 1982), but this technique has not yet been widely used in marine geology (e.g., Chester and Elderfield, 1966; Barranco et al., 1989). Our goal here is to assess the utility of reflectance spectroscopy as a rapid, nonintrusive tool for characterizing the lithology of deep-sea sediments. In this chapter, we report the instrumentation used for the first time during Leg 138, give a few examples of preliminary shipboard results, and make recommendations about further development of the technique in the context of ocean drilling. A more complete discussion of the scientific results appears elsewhere.
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  • Mix, A.C., W. Rugh, N.G. Pisias, S. Veirs, Leg 138 Shipboard Sedimentologists, and the Leg 138 Scientific Party, (1992). Color reflectance spectroscopy: A tool for rapid characterization of deep sea sediments. <http://www.coas.oregonstate.edu/facultypages/Mix/Mix_etal_1992_ODP138ir_col or.pdf> In: Mayer, L., Pisias, N., Janecek, T. et al., /Proceedings of the Ocean Drilling Program,/ /Initial Repts./ 138 (2 volumes), College Station, TX, (Ocean Drilling Program), 67-77.
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  • 138
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