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Table T7. Whole-rock major and trace element compositions of basalt, granoblastic dikes, and gabbros sampled during Expedition 335.

Core, section,
interval (cm) 		Depth
(mbsf) 		Igneous
unit 		Rock name Thin
section 		N (ICP
analyses) 		Major element oxide (wt%)
SiO2 TiO2 Al2O3 Fe2O3T MgO MnO CaO Na2O K2O P2O5 Total
335-1256D-                                
235R-1W, 7–9 1507.2 96A Granoblastic dike TS_02 2 49.61 1.05 15.10 10.77 8.27 0.16 12.30 2.24 0.03 0.08 99.59
236R-1W, 34.5–38 1512.2 96B Granoblastic dike TS_05 2 50.83 1.35 14.39 12.97 7.79 0.25 11.41 2.45 0.01 0.00 101.47
238R-1W, 15–17 1518.4 96B Granoblastic dike TS_07 3 49.32 1.57 14.17 13.77 7.36 0.22 11.58 2.54 0.03 0.11 100.67
Run02-EXJB 923   Basalt None 3 50.38 1.28 14.75 11.99 8.45 0.18 10.10 2.74 0.18 0.12 100.18
Run11-EXJB 1520   Olivine gabbronorite TS29 3 48.64 0.72 15.15 10.12 12.24 0.14 11.39 1.87 0.09 0.09 100.45
Run12-RCJB-RockB 1518   Granoblastic dike TS21 2 48.54 1.61 13.97 15.76 8.70 0.22 10.24 2.56 0.02 0.00 101.61
Run12-RCJB-RockG 1518   Granoblastic dike TS24 2 50.84 1.20 14.37 12.45 7.86 0.21 11.68 2.53 0.02 0.07 101.24
Run13-RCJB-RockB 1518   Granoblastic dike TS30 1 50.46 1.35 14.00 13.14 7.41 0.18 11.42 2.38 0.02 0.10 100.47
RUN19-RCJB-Rock C 1521   Granoblastic dike TSB40 1 50.91 1.33 14.15 14.80 8.31 0.18 9.64 2.74 0.01 ND 102.08
RUN20-RCJB-Rock A 1519.5   Granoblastic dike TSB41 1 50.63 1.48 13.92 13.64 7.23 0.20 11.39 2.42 0.02 ND 100.93
RUN20-RCJB-Rock C 1519.5   Olivine gabbro TSB37 1 50.37 0.69 15.30 8.61 11.21 0.14 13.25 2.05 0.07 ND 101.70

 

Core, section,
interval (cm) 		Depth
(mbsf) 		Mg# Ca# LOI
(wt%) 		H2O
(wt%) 		CO2
(wt%) 		Trace element (ppm) Sample ID
Sc V Cr Ni Cu Zn Sr Y Zr Ba
335-1256D-                                  
235R-1W, 7–9 1507.2 60.3 75.2 0.008 0.703 0.040 51 307 316 92 38 25 82 26 32 11 QRND3224091
236R-1W, 34.5–38 1512.2 54.3 72.0 -0.139 0.728 0.048 46 379 102 79 34 48 78 19 30 9 QRND3224131
238R-1W, 15–17 1518.4 51.4 71.6 0.199 1.076 0.049 47 457 91 60 49 33 77 28 58 12 QRND3224201
Run02-EXJB 923 58.3 67.1 1.220 2.603 0.115 45 326 196 67 87 61 88 32 77 25 CUTS3215501
Run11-EXJB 1520 70.6 77.1 0.815 1.964 0.034 34 196 454 351 41 22 75 16 38 14 CUTS3225281
Run12-RCJB-RockB 1518 52.2 68.9 0.273 1.134 0.039 47 476 76 84 37 33 97 20 31 11 CUTS3225261
Run12-RCJB-RockG 1518 55.6 71.8 -0.293 0.597 0.036 50 344 150 71 37 44 79 21 32 8 CUTS3225271
Run13-RCJB-RockB 1518 52.8 72.6 -0.369 0.628 0.030 47 380 91 58 47 33 72 22 37 8 CUTS3225371
RUN19-RCJB-Rock C 1521 52.7 66.0 0.280 1.247 0.020 50 353 165 86 21 ND 76 33 58 10 CUTS3226431
RUN20-RCJB-Rock A 1519.5 51.2 72.2 -0.036 0.775 0.017 47 410 88 83 39 ND 71 27 52 10 CUTS3226451
RUN20-RCJB-Rock C 1519.5 72.1 78.1 1.161 1.546 0.073 41 217 750 236 60 ND 75 16 42 15 CUTS3226421

ICP = inductively coupled plasma–atomic emission spectroscopy. Fe2O3T = all Fe as Fe2O3. Mg# = cationic Mg/(Mg + Fe) ratio with all Fe as Fe2+, Ca# = cationic Ca/(Ca + Na). LOI = loss on ignition. ND = not determined. This table is available in ASCII and in Microsoft Excel format (see 103_T07.XLS in CHAPTER_103 in TABLES in “Supplementary material”).

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