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Table T3. Analyses of International Rock reference material DTS-1 and JGb-1 and in-house rock standard 147-895D-10W, Expedition 345.

Date (2013) SiO2
(wt%) 		TiO2
(wt%) 		Al2O3 (wt%) Fe2O3(T) (wt%) MgO
(wt%) 		MnO (wt%) CaO (wt%) Na2O (wt%) K2O (wt%) P2O5 (wt%) Total Sc
(ppm) 		V
(ppm) 		Cr
(ppm) 		Co (ppm) Ni
(ppm) 		Cu (ppm) Zn
(ppm) 		Sr
(ppm) 		Y
(ppm) 		Zr
(ppm) 		Ba
(ppm) 		Nb (ppm) Rb
(ppm)
DTS-1:
9 Jan 39.58 <0.01 0.17 8.68 46.83 0.12 <0.2 <0.02 ND <0.70 95.40 2.7 <30 3969 106 2316 ND ND <0.70 <1.5 ND ND ND ND
9 Jan 39.62 <0.01 0.18 8.68 47.35 0.12 <0.2 <0.02 ND <0.70 95.98 3.9 <30 3982 101 2381 ND ND <0.70 <1.5 ND ND ND ND
13 Jan 40.33 <0.01 0.15 8.69 46.94 0.12 <0.2 <0.02 <0.02 <0.07 96.23 2.9 <30 3999 102 2267 <10 39 <0.70 <1.5 <20 <65 <5 <5
13 Jan 40.17 <0.01 0.15 8.68 47.41 0.12 <0.2 <0.02 <0.02 <0.07 96.52 3.1 <30 3991 106 2256 <10 39 <0.70 <1.5 <20 <65 <5 <5
19 Jan 40.66 <0.01 0.16 8.71 48.35 0.12 <0.2 <0.02 <0.1 <0.07 98.00 3.8 12 4122 114 2530 <10 44 <0.70 <20 <10 ND <5 <5
19 Jan 40.36 <0.01 0.20 8.67 48.61 0.12 <0.2 <0.02 <0.1 <0.07 97.96 2.5 20 4168 110 2267 <10 43 <0.70 <20 <10 ND <5 <5
2 Feb 40.00 <0.01 0.15 8.89 48.06 0.12 <0.2 <0.02 <0.04 <0.07 97.24 3.8 15.7 3814 105 2222 <10 32 <0.7 <1.1 9 <11.3 <21 <47
2 Feb 39.69 <0.01 0.16 8.91 48.24 0.12 <0.2 <0.02 <0.04 <0.07 97.15 ND 9.6 3813 101 2346 <10 34 <0.7 <1.1 <5.5 <11.3 <21 <47
6 Feb 39.77 <0.01 0.20 8.71 46.67 0.12 <0.2 <0.02 <0.04 <0.07 95.47 3.0 12.8 3940 104 2282 <6 39 ND ND <2 ND ND ND
6 Feb 39.98 <0.01 0.20 8.73 46.92 0.12 <0.2 <0.02 <0.04 <0.07 95.96 2.9 ND 3982 107 2172 <6 39 ND ND <2 ND ND ND
Average: 40.02 — 0.17 8.73 47.54 0.12 — — — — 96.58 3.2 14.2 3978 106 2304 — 39 — — — — — —
Preferred values: 40.04 0.01 0.19 8.71 49.30 0.12 0.16 0.02 0.001 0.002 98.54 3.50 10.00 3993 132 2304 6 44.8 0.31 0.04 0.19 0.36 0.02 0.06
Precision (%): 0.9   12.3 1.0 1.5 0.6           16.7 28.1 2.8 3.8 4.3 — 10.0            
Accuracy (%): –0.06   –9.8 0.3 –3.6 2.0           –9.6 41.6 –0.4 –19.9 0.0   –13.6            
147-895D-10W:
19 Jan 45.41 0.48 3.82 10.52 38.28 0.14 3.90 0.49 <0.1 <0.07 103.06 16 117 2724 91 1369 29 77 236 <20 51 ND <5 <5
19 Jan 45.06 0.46 3.80 10.40 38.07 0.14 3.85 0.48 <0.1 <0.07 102.27 15 130 2692 90 1214 24 74 233 <20 63 ND <5 <5
2 Feb 45.14 0.63 4.21 10.80 34.90 0.14 3.70 0.72 0.05 <0.07 100.28 14 114 2486 76 1817 10 66 242 14 38 <11.3 <21 <47
2 Feb 45.60 0.63 4.24 10.80 35.11 0.14 3.74 0.73 0.05 <0.07 101.04 15 119 2489 74 1818 12 68 245 13 41 <11.3 <21 <47
6 Feb 43.28 0.46 3.67 9.80 35.73 0.13 3.65 0.51 0.07 <0.07 97.31 15 92 2297 79 1946 21 133 248 13 21 ND ND ND
6 Feb 43.28 0.46 3.66 9.83 35.61 0.13 3.68 0.51 0.07 <0.07 97.22 16 95 2302 78 1960 21 134 247 13 21 ND ND ND
Average: 45.30 0.55 4.02 10.63 36.59 0.14 3.80 0.60 0.05 — 101.68 15 111 2498 81 1687 20 92 242 13 39 — — —
Preferred values: 44.37 0.49 4.03 10.57 35.22 0.17 3.70 0.50 0.06 0.06 99.17 17 181.1 2067 97 1851 40.8 87.2 209 11.32 31.7 11 1.04 1.47
Precision (%): 0.6 16.6 5.9 1.9 5.0 1.1 2.4 22.6 2.2     5.1 13.2 7.3 8.9 18.8 37.0 35.2 2.5 3.7 42.0      
Accuracy (%): 2.1 11.7 –0.4 0.6 3.9 –16.7 2.6 20.9 –15.4     –9.9 –38.5 20.9 –16.2 –8.8 –51.7 5.4 15.5 16.7 23.8      
JGb 1:
9 Jan 44.00 1.68 17.73 15.23 8.82 0.19 12.02 1.39 ND <0.70 101.06 35 631 52 54 17 ND ND 326 10 ND ND ND ND
9 Jan 44.13 1.69 17.76 15.39 8.86 0.19 12.06 1.40 ND <0.70 101.48 35 632 49 55 24 ND ND 328 8 ND ND ND ND
13 Jan 43.86 1.68 17.38 15.18 8.85 0.19 11.83 1.33 0.23 <0.07 100.52 35 669 49 59 23 70 104 327 9 34 <65 <5 <5
13 Jan 44.75 1.70 17.48 15.31 8.89 0.19 11.85 1.34 0.23 <0.07 101.74 35 673 49 58 25 71 106 328 8 29 <65 <5 <5
19 Jan 43.90 1.75 17.38 15.43 8.80 0.19 11.99 1.31 0.20 <0.07 100.94 36 652 52 63 <30 76 114 323 <20 31 ND <5 <5
19 Jan 44.32 1.75 17.74 15.55 8.82 0.19 12.22 1.30 0.20 <0.07 102.09 35 621 48 63 <30 73 115 320 <20 51 ND <5 <5
2 Feb 43.86 1.71 17.76 15.37 7.80 0.19 11.88 1.31 0.23 <0.07 100.10 36 644 47 59 24 72 98 321 13 39 63 <21 <47
2 Feb 43.93 1.70 17.79 15.19 7.82 0.19 11.94 1.31 0.22 <0.07 100.09 36 654 51 60 18 76 97 320 11 34 45 <21 <47
6 Feb 43.94 1.69 17.56 15.38 8.74 0.19 11.99 1.34 0.27 <0.07 101.09 35 644 50 60 24 85 106 321 7 27 ND ND ND
6 Feb 43.85 1.69 17.53 15.33 8.71 0.19 11.97 1.33 0.27 <0.07 100.86 35 642 53 60 30 80 106 319 9 30 ND ND ND
Average: 44.05 1.70 17.61 15.33 8.61 0.19 11.97 1.34 0.23 — 101.04 35 646 50 59 23 75 106 323 9 34 54 — —
Preferred values: 44.00 1.62 17.74 15.09 8.03 0.18 11.87 1.19 0.22 0.06 100.00 35.4 649 61 62 25 75 106 328 9.8 29.0 64.4 2.5 5.59
Precision (%): 0.7 1.5 0.9 0.7 4.9 0.7 0.9 2.6 12.1     1.3 2.6 4.0 4.9 18.6 6.6 6.1 1.2 18.8 22.2 24.1    
Accuracy (%): 0.1 5.2 –0.7 1.6 7.2 5.1 0.9 12.2 5.1     –0.6 –0.4 –18.1 –4.6 –7.8 1.1 0.2 –1.3 –4.0 19.0 –16.1    

These data provide estimates of the run-to-run accuracy and precision for major and trace element inductively coupled plasma–atomic emission spectroscopy analyses. ND = not determined, — = not applicable.

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