Average concentrations of elements in Churchill County, Nevada

Element	Symbol	Mean	Std. dev.	Minimum	Maximum
Aluminum	Al (wt%)	7.708	0.491	5.253	9.721
Arsenic	As (ppm)	14.205	9.474	2.621	93.396
Calcium	Ca (wt%)	3.846	2.070	0.997	14.281
Copper	Cu (ppm)	17.836	6.760	3.744	111.109
Iron	Fe (wt%)	3.294	0.796	0.953	11.812
Mercury	Hg (ppm)	0.085	0.370	0.010	12.345
Magnesium	Mg (wt%)	1.078	0.371	0.364	2.746
Manganese	Mn (ppm)	715.714	162.139	212.709	2185.310
Sodium	Na (wt%)	2.337	0.403	1.025	5.518
Phosphorus	P (wt%)	0.091	0.025	0.043	0.223
Lead	Pb (ppm)	22.412	7.639	6.927	133.365
Selenium	Se (ppm)	0.555	0.791	0.100	11.037
Titanium	Ti (wt%)	0.399	0.126	0.126	2.152
Zinc	Zn (ppm)	74.343	20.372	19.634	294.242