Table T7. Elemental contents of standards analyzed by XRF.
| Element |
MAG-1 (ppm) |
Standard deviation (%) |
Reported (ppm) |
MAX (ppm) |
Standard deviation (%) |
CAMAX (ppm) |
Standard deviation (%) |
|---|---|---|---|---|---|---|---|
| Al | 83,400 | 1.0 | 86,800 | 89,000 | 0.7 | 90,600 | 0.9 |
| As | 7 | 18.8 | 9.2 | 28 | 6.8 | 4 | 10.4 |
| Ba | 490 | 12.1 | 480 | 320 | 12.8 | 400 | 8.1 |
| Br | 200 | 1.0 | 250 | 121 | 0.8 | 101 | 1.9 |
| Ca | 9,220 | 1.6 | 9,790 | 20,500 | 1.4 | 38,900 | 1.8 |
| Cl | 18,303 | 0.4 | 31,000 | 14,500 | 0.7 | 14,900 | 0.3 |
| Co | 51 | 17.0 | 20 | 54 | 4.3 | 80 | 15.9 |
| Cr | 95 | 22.0 | 97 | 106 | 17.7 | 66 | 31.8 |
| Cu | 26 | 12.0 | 30 | 29 | 15.5 | 47 | 13.8 |
| Fe | 45,600 | 0.5 | 47,600 | 66,800 | 0.5 | 43,400 | 0.1 |
| Ga | 21 | 9.2 | 20 | 20 | 10.5 | 21 | 19.1 |
| K | 27,700 | 1.1 | 29,500 | 12,800 | 1.4 | 12,800 | 1.7 |
| Mg | 19,900 | 3.3 | 18,000 | 13,300 | 2.7 | 15,600 | 0.3 |
| Mn | 740 | 3.0 | 760 | 210 | 16.1 | 1,380 | 2.8 |
| Ni | 46 | 10.0 | 53 | 53 | 10.6 | 74 | 2.5 |
| P | 830 | 6.2 | 699 | 760 | 2.7 | 470 | 24.5 |
| Pb | 31 | 7.2 | 24 | 27 | 6.5 | 28 | 4.1 |
| Rb | 127 | 1.8 | 150 | 69 | 3.7 | 72 | 2.7 |
| S | 3,120 | 1.3 | 3,900 | 7,950 | 1.1 | 4,400 | 1.1 |
| Si | 239,000 | 0.9 | 235,000 | 194,000 | 0.6 | 214,000 | 0.3 |
| Sr | 120 | 1.7 | 150 | 129 | 1.0 | 218 | 1.1 |
| Th | 18 | 17.0 | 12 | 15 | 18.6 | 21 | 4.9 |
| Ti | 3,900 | 3.2 | 4,500 | 4,000 | 1.4 | 4,500 | 6.9 |
| V | 130 | 20.0 | 140 | 270 | 8.7 | 178 | 27.3 |
| Zn | 119 | 3.3 | 130 | 109 | 4.3 | 118 | 4.5 |
Notes: MAG-1 = U.S. Geological Survey marine sediment standard; N = 16. MAX = University of Bremen internal standard; N = 6. CAMAX = University of Bremen internal standard; N = 3. XRF = X-ray fluorescence.
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