====== Silicate Earth composition by Pyrolite model based on peridotites (total) ====== Source: McDonough W.F., Sun S.-s. The composition of the Earth, Chemical Geology 120 (1995) 223-253. element;units;orig_value;value Li;ppm;1.6;0.000160000 Be;ppm;0.068;0.000006800 B;ppm;0.3;0.000030000 C;ppm;120;0.012000000 N;ppm;2;0.000200000 F;ppm;25;0.002500000 Na;ppm;2670;0.267000000 Mg;pt;22.8;22.800000000 Al;pt;2.35;2.350000000 Si;pt;21;21.000000000 P;ppm;90;0.009000000 Si;ppm;90;0.009000000 Cl;ppm;17;0.001700000 K;ppm;240;0.024000000 Ca;pt;2.53;2.530000000 Sc;ppm;16.2;0.001620000 Ti;ppm;1205;0.120500000 V;ppm;82;0.008200000 Cr;ppm;2625;0.262500000 Mn;ppm;1045;0.104500000 Fe;pt;6.26;6.260000000 Co;ppm;105;0.010500000 Ni;ppm;1960;0.196000000 Cu;ppm;30;0.003000000 Zn;ppm;55;0.005500000 Ga;ppm;4;0.000400000 Ge;ppm;1.1;0.000110000 As;ppm;0.05;0.000005000 Se;ppm;0.075;0.000007500 Br;ppm;0.05;0.000005000 Rb;ppm;0.6;0.000060000 Sr;ppm;19.9;0.001990000 Y;ppm;4.3;0.000430000 Zr;ppm;10.5;0.001050000 Nb;ppb;658;0.000065800 Mo;ppb;50;0.000005000 Ru;ppb;5;0.000000500 Rh;ppb;0.9;0.000000090 Pd;ppb;3.9;0.000000390 Ag;ppb;8;0.000000800 Cd;ppb;40;0.000004000 In;ppb;11;0.000001100 Sn;ppb;130;0.000013000 Sb;ppb;5.5;0.000000550 Te;ppb;12;0.000001200 I;ppb;10;0.000001000 Cs;ppb;21;0.000002100 Ba;ppb;6600;0.000660000 La;ppb;648;0.000064800 Ce;ppb;1675;0.000167500 Pr;ppb;254;0.000025400 Nd;ppb;1250;0.000125000 Sm;ppb;406;0.000040600 Eu;ppb;154;0.000015400 Gd;ppb;544;0.000054400 Tb;ppb;99;0.000009900 Dy;ppb;674;0.000067400 Ho;ppb;149;0.000014900 Er;ppb;438;0.000043800 Tm;ppb;68;0.000006800 Yb;ppb;441;0.000044100 Lu;ppb;67.5;0.000006750 Hf;ppb;283;0.000028300 Ta;ppb;37;0.000003700 W;ppb;29;0.000002900 Re;ppb;0.28;0.000000028 Os;ppb;3.4;0.000000340 Ir;ppb;3.2;0.000000320 Pt;ppb;7.1;0.000000710 Au;ppb;1;0.000000100 Hg;ppb;10;0.000001000 Tl;ppb;3.5;0.000000350 Pb;ppb;150;0.000015000 Bi;ppb;2.5;0.000000250 Th;ppb;79.5;0.000007950 U;ppb;20.3;0.000002030