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"Results for the stream waters (fig. 7) indicate consistent oversaturation with <br />respect to iron oxides and quartz and undersaturation with gypsum, calcite, and <br />dolomite (the latter not shown). At the low concentration of dissolved uranium in <br />the stream waters (and most natural waters), uranium solubility is most likely <br />limited by sorptive processes rather than uranium mineral saturation (Langmuir, <br />1978)." <br />Zielinski, Robert A., Otton, James K., Schumann, R. Randall, and Wirt, Laurie, 2005. Uranium <br />in Surface Waters and Sediments Affected by Historical Mining in the Denver West <br />1:100,000 Quadrangle, Colorado, USGS Scientific Investigations Report (SIR) 2007- <br />5246, 54 pp. Available by download from: http: / /pubs.usgs.gov /sir /2007/ <br />5246 /508ZielinskiSIR07 5246.pdf <br />Langmuir, Donald, 1978, Uranium solution - mineral equilibria at low temperatures with <br />applications to sedimentary ore deposits: Geochimica et Cosmochimica Acta, v. 42, p. <br />547 -569. <br />2 <br />