East Scotia Ridge unsecured

D 077 102 024 nd h2o total 9708 9867 9845 9879 9885

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Unformatted text preview: 1 0·038 33·5 213 35·0 95·5 45·1 89·5 16·7 5·50 148 33·2 115 3·93 0·048 38·3 5·15 15·4 2·57 13·0 4·35 1·48 5·51 0·966 6·48 1·34 3·81 0·560 3·71 0·536 3·61 0·237 0·008 0·682 0·315 0·093 Major elements by electron microprobe (wt %); H2O by FTIR (wt %) 12/4 12/3 19/3 19 nME/nH2O 10 52·70 53·40 53·08 50·26 50·22 SiO2 1·69 1·61 1·99 1·23 1·24 TiO2 15·14 15·15 15·12 16·34 16·34 Al2O3 FeO 8·94 8·93 9·95 7·82 7·78 MnO 0·20 0·20 0·20 0·16 0·15 MgO 4·77 4·98 4·21 8·16 8·15 CaO 9·04 9·07 7·97 11·21 11·21 3·75 3·66 4·02 2·97 2·95 Na2O 0·49 0·52 0·47 0·13 0·12 K2O 0·36 0·37 0·42 0·26 0·27 P2O5 n.d. 0·77 1·02 0·24 n.d. H2O Total 97·08 98·67 98·45 98·79 98·85 mg-no. 52·83 53·92 47·04 68·64 68·72 Trace elements by ICP-MS (ppm) Sc 31·5 29·8 30·9 Cr 70·4 54·3 10·8 Co 28·3 26·3 28·1 Ni 37·0 32·1 8·99 Cu 46·9 49·6 36·3 Zn 80·2 81·6 91·0 Ga 17·4 17·4 18·7 Rb 6·83 7·97 7·45 Sr 234 244 211 Y 27·5 27·4 33·2 Zr 118 114 144 Nb 8·53 7·79 9·72 Cs 0·105 0·131 0·127 Ba 107 114 117 La 9·08 9·02 10·3 Ce 20·7 20·7 24·3 Pr 3·04 2·99 3·55 Nd 13·9 13·8 16·3 Sm 3·92 3·89 4·63 Eu 1·36 1·34 1·59 Gd 4·59 4·54 5·58 Tb 0·798 0·796 0·958 Dy 5·11 5·12 6·13 Ho 1·09 1·08 1·30 Er 3·05 3·06 3·69 Tm 0·449 0·447 0·539 Yb 2·97 3·00 3·55 Lu 0·439 0·444 0·531 Hf 3·01 2·99 3·66 Ta 0·484 0·435 0·553 Tl 0·032 0·037 0·034 Pb 1·17 1·49 1·29 Th 0·977 0·989 1·05 U 0·272 0·268 0·305 30·5 302 36·3 130 52·7 71·3 14·5 2·34 129 22·0 70·6 2·45 0·016 20·2 3·12 9·26 1·59 8·17 2·82 1·05 3·71 0·665 4·53 0·925 2·59 0·387 2·59 0·371 2·27 0·152 n.d. 0·448 0·177 0·052 21/5 50·64 1·54 15·64 8·62 0·16 7·39 10·87 3·11 0·16 0·29 0·43 98·42 64·25 33·2 247 35·8 96·9 48·5 80·5 16·0 3·63 130 29·5 89·0 3·44 0·033 30·9 4·04 11·9 2·04 10·5 3·56 1·25 4·72 0·850 5·71 1·18 3·31 0·495 3·30 0·469 2·90 0·207 0·003 0·492 0·259 0·077 1440 15 50·27 1·24 16·36 7·84 0·16 8·17 11·18 2·95 0·12 0·27 n.d. 98·57 68·62 E3 FRETZDORFF et al. PETROGENESIS OF EAST SCOTIA RIDGE Segment: E3 E3 E3 E4 E4 E4 E4 E4 E5 E5 Sample: 97DS-5 wx46 98DS-1 wx47 99DS-1 99DS-3 99DS-4 100DS-1 102DS-1b wx48 104DS-1 Lat. (S): 56°46·6′ 56°51·00′ 56°55·9′ 57°02·01′ 57°03·8′ 57°03·8′ 57°03·8′ 57°11·8′ 57°15·6′ 57°25·19′ 57°29·3′ Long. (W): 30°44·0′ Depth (m): 3949 30°42·91′ 3790 30°41·8′ 3891 30°30·00′ 3681 30°29·2′ 3688 30°29·2′ 3688 30°29·2′ 3688 30°21·5′ 4568 30°10·2′ 4155 30°08·41′ 3683 30°07·1′ 3779 Major elements (wt %) 16 nME/nH2O 13/3 51·72 50·92 SiO2 1·70 1·69 TiO2 15·93 15·46 Al2O3 FeO 8·07 8·73 MnO 0·17 0·19 MgO 7·02 6·63 CaO 10·35 10·48 3·37 3·20 Na2O 0·21 0·39 K2O 0·34 0·34 P2O5 0·48 n.d. H2 O Total 99·36 98·04 mg-no. 64·59 61·45 14/5 52·15 1·40 16·04 7·57 0·17 6·83 10·82 2...
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This document was uploaded on 02/01/2014.

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