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Fluorine, fluorite, and fluorspar in central Colorado
Distribution of fluorine in specific age-lithologic categories, ranging from precambrian metamorphic rocks to modern soils. |
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Major- and trace-element concentrations in soils from two geochemical surveys (1972 and 2005) of the Denver, Colorado, metropolitan area
Analyses of about 900 samples by ICP-MS, ICP-AES, and hydride generation-atomic absorption spectrometry. The samples collected in 2005 were also analyzed by a cold vapor-atomic absorption method for mercury. |
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