Mineral Resources - Alaska

U.S. Geological Survey
Open-File Report 2006-1361
Version 1.0

Aqueous Geochemical Data From the Analysis of Stream-Water Samples Collected in June and July 2005—Taylor Mountains 1:250,000 Scale Quadrangle, Alaska

By Bronwen Wang, Seth Mueller, Sarah Stetson, Elizabeth Bailey, and Greg Lee


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Location of stream-water sites for 2005 in the Taylor Mountains quadrangle (from figure 1).

We report on the chemical analysis of water samples collected from the Taylor Mountains 1:250,000-scale quadrangle. Parameters for which data are reported include pH, conductivity, water temperature, major cation and anion concentrations, trace-element concentrations, and dissolved organic-carbon concentrations. Samples were collected as part of a multiyear U.S. Geological Survey project "Geologic and Mineral Deposit Data for Alaskan Economic Development." Data presented here are from samples collected in June and July of 2005. The data are being released at this time with minimal interpretation. This is the second release of aqueous geochemical data from this project; 2004 aqueous geochemical data were published previously (Wang and others, 2006). The data in this report augment but do not duplicate or supersede the previous data release. Site selection was based on a regional sampling strategy that focused on first- and second-order drainages. Water sample site selection was based on landscape parameters that included physiography, wetland extent, lithological changes, and a cursory field review of mineralogy from pan concentrates. Stream water in the Taylor Mountians quadrangle is dominated by bicarbonate (HCO3-), though in a few samples more than 50 percent of the anionic charge can be attributed to sulfate (SO42-). The major-cation chemistry ranges from Ca2+/Mg2+ dominated to a mix of Ca2+/Mg2+/Na++K+. In general, good agreement was found between the major cations and anions in the duplicate samples. Many trace elements in these samples were at or near the analytical method detection limit, but good agreement was found between duplicate samples for elements with detectable concentrations. With the exception of a total mercury concentration of 0.33 ng/L detected in a field blank, field blank major-ion and trace-elements concentrations were below detection.

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Also of interest

USGS Open-File Report 2006-1070 Major- and Trace-Element Concentrations in Rock Samples Collected in 2004 from the Taylor Mountains 1:250,000-scale Quadrangle, Alaska, by Edward P. Klimasauskas, Marti L. Miller, Dwight C. Bradley, Sue M. Karl, James F. Baichtal, and Robert B. Blodgett.

USGS Open-File Report 2006-1175 Aqueous Geochemical Data from the Analysis of Stream Water Samples Collected in August 2004—Taylor Mountains 1:250,000 Scale Quadrangle, Alaska, by Bronwen Wang, Seth Mueller, Elizabeth Bailey, and Greg Lee.

USGS Open-File Report 2006-1306 Major- and Trace-Element Concentrations in Rock Samples Collected in 2005 from the Taylor Mountains 1:250,000-scale Quadrangle, Alaska, by Edward P. Klimasauskas, Marti L. Miller, Dwight C. Bradley, Tom K. Bundtzen, and Travis L. Hudson.

For questions about the content of this report, contact Bronwen Wang.

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