Average concentrations of elements in Robeson County, North Carolina

    Counties page > Mg in Conterminous US > Mg in southeastern US > Averages in Robeson County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)0.9080.3720.2282.878
ArsenicAs (ppm)2.5521.0750.3647.989
CalciumCa (wt%)0.0400.0210.0080.125
CopperCu (ppm)3.8301.1691.0927.294
IronFe (wt%)0.4340.1830.1421.295
MercuryHg (ppm)0.0310.0100.0110.085
MagnesiumMg (wt%)0.0260.0140.0070.105
ManganeseMn (ppm)95.42467.78825.441503.262
SodiumNa (wt%)0.0270.0350.0030.257
PhosphorusP (wt%)0.0230.0080.0040.065
LeadPb (ppm)17.2693.6796.47135.145
SeleniumSe (ppm)0.1850.0770.1010.733
TitaniumTi (wt%)0.5590.0910.3200.844
ZincZn (ppm)11.1513.8873.42827.060

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