Interpolation Uncertainty: New England stream sediment and water chemistry data:

Multifractal IDW Interpolation

·        Major Elements

·        Trace Elements

·        NURE Water Chemistry

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Major Elements:

          Al₂O₃                             CaO                                Fe₂O₃

           K₂O                               MgO                              Na₂O

            SiO₂                                 TiO₂

Trace Elements, by group:

Alkaline Earths:

                                          Ba                                         Sr

First-row Transition elements:

                                           Sc                                                      V

Heavy-mineral suite: (Rare earths)

            Ce                                               La                                            Nd              

Heavy-mineral suite: (other)

               Y                                   Th                             U                                   Zr

Base and toxic metals:

               Cu                                     Pb                                        Zn

                As                                     Hg

NURE Water Chemistry:

         Alkalinity                      pH                          Specific Conductance

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Direct questions and comments to:

Gilpin R. Robinson

U.S. Geological Survey

Email grobinso@usgs.gov 

Phone (703)-648-6113