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  "Title": "Digital map of iron sulfate minerals, other mineral groups, and vegetation of the Western United States derived from automated analysis of Landsat 8 satellite data",
  "Author": "Rockwell, R.W., Gnesda, W.R.",
  "Comments": "Multispectral remote sensing data acquired by Landsat 8 Operational Land Imager (OLI) sensor were analyzed using an automated technique to generate surficial mineralogy maps of the conterminous western United States. Six spectral indices (e.g. band-ratios), highlighting distinct spectral absorptions, were developed to aid in the identification of mineral groups in exposed rocks, soils, mine waste rock, and mill tailings across the landscape. The data cover the western U.S. and portions of Texas, Oklahoma, and Kansas during the summers of 2013 \u2013 2014. Methods used to process the images and algorithms used to infer mineralogical composition of surficial materials were similar to those developed by Rockwell (2012; 2013). Final maps are provided as ERDAS IMAGINE (.img) thematic raster images and contain pixel values representing mineral and vegetation group classifications. This data release supports Scientific Investigations Map,",
  "Subject": "Landsat 8 derived material map from SIM 3466",
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  "Keywords": "image analysis, remote sensing, multispectral imaging, land use and land cover, computational methods"
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