U.S. Geological Survey Scientific Investigations Report 2011–5162
Mineralized and altered rock samples collected from the northern Talkeetna Mountains, Alaska, were analyzed by two different inductively coupled plasma atomic-emission spectrometry (ICP-AES) methods for as many as 44 elements; by fire assay and either direct-coupled plasma (DCP) or atomic absorption spectrophotometry (AAS) for gold (Au); by cold vapor atomic absorption (CVAA) for mercury (Hg); and by irradiated neutron activation analysis (INAA) for tungsten (W). The analytical results showed that some samples contain high values of multiple elements and may be potential indicators of hydrothermal mineralization in the area.
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Light, T.D., and Schmidt, J.M., 2011, Lithogeochemistry of mineralized and altered rock samples from the northern Talkeetna Mountains, south-central Alaska: U.S. Geological Survey Scientific Investigations Report 2011–5162, 26 p., available at http://pubs.usgs.gov/sir/2011/5162/.
Sampling of Mineralized and Altered Rocks
Results: Histograms and Star Plots of the analytical data