Average Rock Compositions

Element	Units		Basalt	Andesite	Granite	Shale	Graywacke	Cont.	MORB	Prim.	Silicate	C1
or Oxide								Crust		Mantle	Earth	Chondrite

Element	Units	Basalt	Andesite	Granite	Shale	Graywacke	Cont.	MORB	Prim.	Silicate	C1
H	ppm								120
He
Li	ppm	13	10	90	75		16	6.5	1.6	1.6	1.5
Be	ppm	0.76		3.6			1.9	0.76	0.07	0.68	0.025
B	ppm	13		26	100		11		0.26	0.30	0.9
C	ppm	160		300					100	120	35000
N	ppm	23					56		2	2	3180
O
F	ppm	220		500			553		25	25	60
Ne
Na2O	%	2.16	3.50	3.55	1.2	3.1	3.1	2.79	0.35	0.36	0.69
MgO	%	6.62	3.48	0.95	2.2	2.0	4.7	7.58	36.76	37.81	16.00
Al2O3	%	15.00	17.95	14.49	18.9	15.5	15.9	14.70	4.50	4.44	1.62
SiO2	%	52.41	57.98	69.96	62.8	66.3	60.6	50.47	45.40	44.93	22.78
P2O5	%	0.131		0.12	0.16	0.14	0.1	0.184	0.02	0.02	0.25
S	ppm	130		80			404		200	250	54000
Cl	ppm	205		250			244		30	17	680
Ar
K2O	%	0.64	1.57	4.02	3.7	2.3	1.8	0.160	0.03	0.03	0.07
CaO	%	11.00	7.56	2.45	3.3	3.2	6.4	11.39	3.65	3.54	1.29
Sc	ppm	35	30	7	16	14	21.9	39.8	16.5	16.2	5.92
TiO2	%	1.07	0.80	0.38	1.0	0.72	0.7	1.68	0.21	0.20	0.07
V	ppm	257	175	38	150	130	138	309	86	82	56
Cr	ppm	119	55	12	110	70	135	249	2520	2625	2650
MnO	%	0.17	0.14	0.09	0.11		0.1	0.184	0.14	0.13	0.25
FeO	%	10.05	7.46	2.55	6.5	6.2	6.7	10.43	8.10	8.05	23.29
Co	ppm	47	25	5	23	15	26.6	43	102	105	500
Ni	ppm	75	30	7	55	30	59	92	1860	1960	10500
Cu	ppm	113	60	16	50		27	74	20	30	120
Zn	ppm	84		80			72	91.3	53.5	55	310
Ga	ppm	17	18	16	20		16	17.5	4.4	4.0	9.2
Ge	ppm	1.65		1.7			1.3		1.2	1.1	31
As	ppm	2.2		1.7			2.5		0.066	0.05	1.85
Se	ppm	0.12					0.13		0.079	0.075	21
Br	ppm	0.36					0.88		0.075	0.050	3.57
Kr
Rb	ppm	21.4	42	175	160	100	49	2.88	0.605	0.600	2.30
Sr	ppm	186	400	310	200	280	320	129	20.3	19.9	7.25
Y	ppm	26	22	21	27	28	19	36.8	4.37	4.30	1.57
Zr	ppm	99	100	150	210	145	132	116.9	10.81	10.5	3.82
Nb	ppm	9.9	11	12	19	10	8	5.24	0.588	0.658	0.24
Mo	ppm	0.75		0.5	1		0.8	0.46	0.039	0.05	0.90
Tc
Ru	ppm	0.2					0.6		0.00455	0.005	0.71
Rh	ppm								0.00093	0.0009	0.13
Pd	ppm	12		0.2			1.5		0.00327	0.0039	0.55
Ag	ppm	0.06		0.016			56		0.0004	0.008	0.20
Cd	ppm	0.15		0.13			0.08		0.0064	0.040	0.71
In	ppm	0.064		0.03			0.052		0.0013	0.011	0.08
Sn	ppm	2.7		2.7	4		1.7	0.92	0.138	0.130	1.65
Sb	ppm	1.04		0.2			0.2		0.012	0.0055	0.14
Te	ppm	0.0074		0.0013					0.008	0.012	2.33
I	ppm	0.054					0.7		0.007	0.01	0.45
Xe
Cs	ppm	0.96		6			2	0.034	0.018	0.021	0.19
Ba	ppm	162	350	840	650	650	456	29.2	6.750	6.600	2.41
La	ppm	11	19	40	38	28	20	5.21	0.686	0.648	0.237
Ce	ppm	23.5	38	76	80	61	43	14.86	1.786	1.675	0.613
Pr	ppm	3.2	4.3	8.3	8.9		4.9	2.24	0.270	0.254	0.0928
Nd	ppm	14.6	16	27	32	26	20	12.03	1.327	1.250	0.457
Pm
Sm	ppm	3.68	3.7	5	5.6	4.9	3.9	3.82	0.431	0.406	0.148
Eu	ppm	1.12	1.1	1.1	1.1	0.9	1.1	1.36	0.162	0.154	0.0563
Gd	ppm	4	3.6	3.8	4.7	4.34	3.7	4.99	0.571	0.554	0.199
Tb	ppm	0.63	0.64	0.6	0.77	0.66	0.6	0.9	0.105	0.099	0.0361
Dy	ppm	4	3.7	3.3	4.4		3.6	6.08	0.711	0.674	0.246
Ho	ppm	0.81	0.82	0.7	1		0.77	1.28	0.159	0.149	0.0546
Er	ppm	2.3	2.3	1.9	2.9		2.1	3.79	0.465	0.438	0.160
Tm	ppm	0.34	0.32	0.31	0.4		0.28		0.0717	0.068	0.0247
Yb	ppm	2.03	2.2	2	2.8	2.2	1.9	3.63	0.462	0.441	0.161
Lu	ppm	0.32	0.3	0.3	0.43	0.38	0.3	0.53	0.0711	0.0675	0.0246
Hf	ppm	2.5	3	4	5	3.9	3.7	2.79	0.300	0.283	0.103
Ta	ppm	0.48		1.3		0.85	0.7	0.34	0.040	0.037	0.0136
W	ppm	0.46		1.5	2.7		1	0.12	0.016	0.029	0.093
Re	ppm	0.5					0.188		0.00032	0.00028	0.040
Os	ppm	0.2					0.041		0.0034	0.0034	0.49
Ir	ppm	0.3					0.037		0.0032	0.0032	0.455
Pt	ppm	13					1.5		0.0066	0.0071	1.01
Au	ppm	4.3					1.3		0.00088	0.0010	0.14
Hg	ppm	0.2		0.03			0.03		0.006	0.010	0.30
Tl	ppm	0.11		0.008			0.5	0.02	0.003	0.0035	0.14
Pb	ppm	7.5	10	30	20	12	11	0.57	0.185	0.150	2.47
Bi	ppm	0.048			0.25		0.18		0.005	0.0025	0.11
Th	ppm	2.4	4.8	17	14.16	8.5	5.6	0.404	0.0834	0.0795	0.029
U	ppm	0.57	1.3	5	3.1	1.8	1.3	0.119	0.0218	0.0203	0.0074
or Oxide							Crust		Mantle	Earth	Chondrite

Sources for the average compositions are:

Basalt: Li, Y. (2000) A Compendium of Geochemistry: From Solar Nebula to the Human Brain. Princeton University Press, Table V-4a.

Andesite: Li, Y. (2000) A Compendium of Geochemistry: From Solar Nebula to the Human Brain. Princeton University Press, Table V-5.

Granite: Li, Y. (2000) A Compendium of Geochemistry: From Solar Nebula to the Human Brain. Princeton University Press, Table V-4a.

Shale: Taylor S. R. and McLennan S. M. (1985) The Continental Crust: Its Composition and Evolution. Blackwell, Oxford, Table 2.9.

Greywacke: Condie K. C. (1997) Plate Tectonics and Crustal Evolution. Butterworth-Heinemann, Oxford, Appendix F.

Continental Crust: Rudnick, R.L. and Gao, S. (2005) Composition of the continental crust, Table 10.

MORB: Gale, Allison, Colleen A. Dalton, Charles H. Langmuir, Yongjun Su, and Jean-Guy Schilling (2013) The mean composition of ocean ridge basalts. Geochemistry, Geophysics, Geosystems, 14, no. 3: 489–518.

Primitive Mantle: Palme, H., and O'Neill, H.St.C. (2005) Comsmochemical estimates of mantle composition. In Carlson, R.W., ed., The Mantle and Core, Treatise on Geochemistry, v.2, Chapter 2.01.

Silicate Earth: McDonough, W.F. and Sun, S.-s. (1995) Chemical Geology, 120, 223-253, Table 5.

c1 Chondrite: McDonough, W.F. and Sun, S.-s. (1995) Chemical Geology, 120, 223-253, Table 2.

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