Raman and Synchrotron X-ray Data of Sold Phases Used in Chromium Sequestration and Re-oxidation Experiments with Sand and Sediment from Hinkley, CA

Publication Date

2023-04-21

Start Date

2015-01-22

End Date

2022-03-08

Foster, A.L., Wright, E.G., Bobb, C., Choy, D., and Miller, L.G., 2023, Optical Petrography, Bulk Chemistry, Micro-scale Mineralogy/Chemistry, and Bulk/Micron-Scale Solid-Phase Speciation of Natural and Synthetic Solid Phases Used in Chromium Sequestration and Re-oxidation Experiments with Sand and Sediment from Hinkley, CA: U.S. Geological Survey data release, https://doi.org/10.5066/P9ENBLGY.

Type: Online Link

Synchrotron-based bulk and microbeam methods and data provide unique information on chromium oxidation state and mineral residence that is simply not possible to obtain by other methods. Similar information for iron and manganese is needed because these two elements form minerals that are known to be the most important hosts for chromium. Raman spectroscopy with micron-scale beams (e.g., microRaman) was used to identify the mineralogy of secondary coatings on mineral grains in natural or synthetic mineral mixtures used in the experiments described in in Miller and others (2020). Miller, L.G., Bobb, C., Bennett, S., and Baesman, S.M., 2020, Aqueous and Solid Phase Chemistry of Sequestration and Re-oxidation of Chromium in Experimental Microcosms with Sand and Sediment from Hinkley, CA: U.S. Geological Survey data release, https://doi.org/10.5066/P9U8C82V.

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