Average concentrations of elements in Roscommon County, Michigan

    Counties page > Mg in Conterminous US > Mg in upper-midwestern US > Averages in Roscommon County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)2.6620.2231.6972.988
ArsenicAs (ppm)2.7990.5641.6744.675
CalciumCa (wt%)0.8050.3570.4652.272
CopperCu (ppm)3.8310.9061.2286.315
IronFe (wt%)0.9120.2710.4311.677
MercuryHg (ppm)0.0130.0040.0100.027
MagnesiumMg (wt%)0.2530.1290.1250.770
ManganeseMn (ppm)243.34076.849116.912413.904
SodiumNa (wt%)0.7400.0660.4260.812
PhosphorusP (wt%)0.0140.0040.0100.023
LeadPb (ppm)10.0440.8837.06311.937
SeleniumSe (ppm)0.1450.0490.1010.380
TitaniumTi (wt%)0.1690.0390.0950.269
ZincZn (ppm)15.8053.58910.12429.083

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