"Table 19. Statistics for Fe-Mn crust data from San Marcos Seamount, from Tables 12 and 13.
[Std. Dev., Standard deviation; wt%, weight percent; ppb, parts per billion; ppm, parts per million]"						
	Count	Mean	Std. Dev.	Median	Minimum	Maximum
Fe  wt%	13	17.0	2.63	17.4	10.3	20.1
Mn	13	15.4	4.85	16.0	4.35	21.9
Fe/Mn	13	1.5	.4	1.5	.8	2.6
Si	13	12.0	5.09	10.4	5.91	25.0
Na	13	1.97	.28	1.86	1.54	2.66
Al	13	2.38	.96	2.42	1.29	4.89
K	13	.90	.23	.85	.65	1.48
Mg	13	1.09	.32	1.01	.75	1.79
Ca	13	1.85	.24	1.83	1.37	2.18
Ti	13	.55	.20	.51	.26	.97
P	13	.31	.07	.33	.15	.39
H2O+	13	21.9	7.85	20.3	8.70	34.4
H2O-	13	8.54	1.96	9.03	5.00	10.9
CO2	13	.38	.17	.34	.12	.75
						
As  ppm	13	213	60	242	98	279
Ba	13	"1,790"	"1,191"	"1,302"	"1,174"	"5,599"
Cd	13	3.0	2.9	2.1	.38	9.6
Ce	13	992	416	924	347	1747
Co	13	"2,461"	"1,459"	"1,968"	761	"5,511"
Cr	13	25	16	19	11	61
Cu	13	639	308	552	228	"1,317"
Mo	13	271	122	296	17	429
Ni	13	"3,014"	"1,978"	"2,390"	848	"7,292"
Pb	13	963	346	899	391	"1,585"
Sr	13	"1,115"	241	"1,160"	565	"1,387"
V	13	489	110	517	217	613
Y	13	147	45	157	57	212
Zn	13	585	188	558	261	"1,007"
						
Pd  ppb	3	5.3	1.6	4.6	4.1	7.2
Pt	3	80	8.2	81	72	88
Rh	3	6.2	.62	5.8	5.8	6.9
						
La  ppm	2	281	159	281	168	393
Ce	2	943	363	943	686	"1,199"
Pr	2	70.8	48.5	71	36.5	105
Nd	2	280	183	280	150	409
Sm	2	65.0	44.1	65.0	33.8	96.0
Eu	2	15.8	10.48	15.8	8.42	23.2
Gd	2	59.7	36.4	59.7	33.9	85.0
Tb	2	9.6	5.89	9.6	5.49	13.8
Dy	2	57.2	32.7	57.2	34.2	80.0
Ho	2	10.2	4.97	10.2	6.65	13.7
Er	2	27.5	12.8	27.5	18.5	36.5
Tm	2	4.20	1.83	4.20	2.91	5.50
Yb	2	26.3	10.9	26.3	18.6	34.0
Lu	2	3.50	1.26	3.50	2.61	4.40