Trace elements, by Group: Stream sediment chemistry (with geologic province overlay)
Multifractal IDW Interpolation
(Click on image for larger view, click on name for normal probability plot:)
Alkaline Earths:
First-row Transition elements:
Heavy-mineral suite: (Rare earths)
Heavy-mineral suite: (other)
Base and toxic metals*
(*Samples exceeding freshwater guidelines included in figure (MacDonald, 2000))
Direct questions and comments to:
Gilpin R. Robinson
U.S. Geological Survey
Email grobinso@usgs.gov
Phone (703)-648-6113
U.S. Department of the Interior, U.S. Geological Survey
URL: http://pubs.usgs.gov/of/2004/1026/FIGURES/trace_1.htm
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Last modified: 23:03:19 Sat 12 Jan 2013
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