Major Elements: Stream sediment chemistry (with geologic province overlay):

Multifractal IDW Interpolation:

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(Click on image for larger view, click on name for normal probability plot:)

          Al₂O₃                                         CaO                                 Fe₂O₃

           K₂O                                       MgO                                    Na₂O

            SiO₂                                    TiO₂

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Direct questions and comments to:

Gilpin R. Robinson

U.S. Geological Survey

Email grobinso@usgs.gov 

Phone (703)-648-6113