Average concentrations of elements in Madison County, Arkansas

    Counties page > Fe in Conterminous US > Fe in central US > Averages in Madison County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)2.9990.9201.0625.523
ArsenicAs (ppm)17.2686.0983.90631.721
CalciumCa (wt%)0.3490.3130.0721.804
CopperCu (ppm)10.4672.3684.11318.860
IronFe (wt%)3.1800.9210.7674.749
MercuryHg (ppm)0.1860.3110.0122.243
MagnesiumMg (wt%)0.2590.1320.1230.975
ManganeseMn (ppm)1066.990142.020368.2751349.310
SodiumNa (wt%)0.0710.0160.0330.125
PhosphorusP (wt%)0.0450.0080.0190.060
LeadPb (ppm)19.7663.31014.18741.138
SeleniumSe (ppm)0.5110.1750.1131.191
TitaniumTi (wt%)0.1810.0530.0770.319
ZincZn (ppm)71.38918.44232.358115.857

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