Factor Analysis: Stream sediment chemistry (with geologic province overlay):

Universal Kriging Interpolation

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Metal Factors:

                   Factor 1 [Fe₂O₃, Cu, Zn]:                       Factor 2 [As, Pb]:

Major Element Factors:

    Factor 1 [Fe₂O₃, MgO, CaO]       Factor 2 [K₂O, Al₂O₃]          Factor 3 [Na₂O, CaO]

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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/f_krig.htm
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