Trace Element Box-plots: Stream sediment chemistry by New England geologic provinces:

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Alkaline earths:

                                        Ba                                              Sr

First-row transition elements:

                                       Sc                                                 V

Heavy mineral suite (rare earths):

          Ce                               La                              Nd                            Ce/Yb(n)

Heavy mineral suite (others):

                 Y                             Th                              U                                  Zr

Base and toxic metals:

               Cu                                              Pb                                                   Zn

                As                                            Hg

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Direct questions and comments to:

Gilpin R. Robinson

U.S. Geological Survey

Email grobinso@usgs.gov 

Phone (703)-648-6113