serie NOVA TERRA nº 48

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176Yb a 176Lu a 178 Hf 180 Hf SigHf
b 176Hf 176 Hf d “ ı c TDM
e agef “ ı U-Pb g Lu-Hf h
177 Hf 177Hf 177 Hf 177 Hf (V) 177Hf 177Hf (t) İ+I (Ga) (Ma) (Ma) conc seq İ+I(t)
d Grain “ ı “ ı ±2ıc
A534_seq2_26 0.0198 17 0.00068 5 1.46712 1.88634 6 0.281607 35 0.281580 3.8 1.3 2.22 2050 39 94 2
A536_seq2_26 0.0248 22 0.00085 6 1.46707 1.88629 8 0.282182 35 0.282172 -7.5 1.2 1.68 635 10 96 2
A538_seq2_26 0.0301 25 0.00109 7 1.467121.88627 7 0.282196 72 0.282185 -9.3 2.5 1.70 537 8 101 2
A540_seq2_40 0.0469 45 0.00158 12 1.467161.88672 12 0.281741 22 0.281687 1.8 0.8 2.13 1801 21 93 2
A541_seq2_40 0.0195 23 0.00063 8 1.46712 1.88636 14 0.282573 45 0.282567 3.6 1.6 0.97 507 8 96 2
A542_seq2_40 0.0379 30 0.00122 7 1.467161.88675 13 0.282517 22 0.282505 2.3 0.8 1.07 549 8 100 2
A543_seq2_26 0.0483 42 0.00158 11 1.467001.88616 9 0.282335 37 0.282314 -0.8 1.3 1.37 713 19 108 2
A545_seq2_26 0.0776 66 0.00260 17 1.46713 1.88653 8 0.282410 32 0.282383 -1.5 1.1 1.30 571 8 92 2
A546_seq2_40 0.0387 39 0.00119 10 1.467171.88672 14 0.282599 20 0.282588 4.5 0.7 0.92 516 9 100 2
A547_seq2_40 0.0207 26 0.00072 7 1.46713 1.88670 14 0.281575 22 0.281547 2.1 0.8 2.30 2030 33 94 2
A548_seq2_40 0.0271 29 0.00086 8 1.46716 1.88664 14 0.281105 24 0.281061 0.0 0.8 2.94 2679 11 92 2
A554_seq2_26 0.0293 28 0.00106 8 1.467091.88622 8 0.281721 31 0.281710 -26.3 1.1 2.61 528 9 101 2
A555_seq2_26 0.0256 21 0.00083 5 1.46702 1.88622 7 0.282557 28 0.282549 3.3 1.0 0.99 522 13 136 2
A559_seq2_26 0.0151 13 0.00057 4 1.46715 1.88668 7 0.282657 27 0.282652 7.1 1.0 0.79 529 7 91 2
A560_seq2_26 0.0302 25 0.00112 7 1.467131.88642 7 0.282262 31 0.282247 -3.3 1.1 1.51 706 10 95 2
A561_seq2_40 0.0188 17 0.00066 5 1.46722 1.88681 15 0.282466 25 0.282459 0.7 0.9 1.16 548 8 100 2
A562_seq2_40 0.0243 29 0.00091 9 1.46712 1.88668 14 0.282311 20 0.282300 -2.7 0.7 1.43 649 10 99 2
A563_seq2_40 0.0272 24 0.00087 6 1.46712 1.88653 14 0.282677 21 0.282669 7.6 0.8 0.76 524 9 100 2
A564_seq2_40 0.0440 39 0.00138 10 1.467251.88683 11 0.282487 25 0.282472 2.3 0.9 1.11 601 9 98 2
A565_seq2_40 0.0280 22 0.00086 5 1.46722 1.88684 13 0.281092 28 0.281048 -0.8 1.0 2.98 2665 10 94 2
A566_seq2_40 0.0176 20 0.00052 5 1.46718 1.88697 16 0.281023 19 0.280997 -4.9 0.7 3.12 2567 26 99 2
A568_seq2_40 0.0113 18 0.00038 5 1.46717 1.88675 15 0.280898 30 0.280877 -0.8 1.1 3.19 2923 20 98 2
A570_seq2_40 0.0169 14 0.00066 4 1.46715 1.88647 16 0.282610 29 0.282604 5.1 1.0 0.89 516 11 101 2
A571_seq2_26 0.0242 20 0.00079 5 1.46716 1.88649 7 0.282006 37 0.281988 -0.9 1.3 1.80 1218 74 100 2
A572_seq2_40 0.0430 37 0.00138 10 1.467201.88692 9 0.282477 30 0.282460 3.5 1.1 1.10 673 18 97 2
A573_seq2_40 0.0165 15 0.00059 4 1.46724 1.88688 14 0.282682 18 0.282677 7.7 0.6 0.75 518 8 99 2
A574_seq2_26 0.0425 95 0.00144 31 1.467061.88669 6 0.281589 34 0.281532 2.7 1.2 2.30 2079 21 91 2
A575_seq2_26 0.0179 15 0.00058 4 1.46717 1.88642 8 0.282652 31 0.282646 7.1 1.1 0.80 536 8 101 2
A577_seq2_26 0.0304 24 0.00101 6 1.467171.88646 7 0.281159 30 0.281107 1.8 1.1 2.85 2686 13 92 2
A578_seq2_26 0.0074 15 0.000235 1.46708 1.88630 10 0.282080 34 0.282078 -11.7 1.2 1.88 597 9 95 2
A580_seq2_40 0.0149 12 0.00046 3 1.46714 1.88671 14 0.282091 21 0.282081 0.9 0.8 1.64 1152 34 96 2
A581_seq2_40 0.0511 43 0.00175 11 1.467161.88678 14 0.282631 24 0.282613 5.6 0.9 0.87 525 8 100 2
A584_seq2_40 0.0249 21 0.00070 5 1.46712 1.88634 17 0.282041 46 0.282025 0.3 1.6 1.73 1213 38 100 2
A585_seq2_40 0.0266 30 0.00081 8 1.46716 1.88670 18 0.282578 20 0.282570 4.5 0.7 0.94 542 8 94 2
A586_seq2_26 0.0279 27 0.00088 7 1.46717 1.88663 7 0.281047 25 0.281001 -1.9 0.9 3.06 2691 11 93 2
A587_seq2_26 0.0330 55 0.00116 17 1.467181.88669 9 0.281548 50 0.281504 0.7 1.8 2.38 2035 17 99 2
A588_seq2_26 0.0420 36 0.00143 10 1.467171.88680 16 0.282505 21 0.282491 1.4 0.7 1.11 530 7 95 2
A589_seq2_26 0.0187 23 0.00059 6 1.46717 1.88670 8 0.282652 35 0.282646 6.4 1.2 0.81 506 8 98 2
A590_seq2_26 0.0144 13 0.00056 4 1.46702 1.88627 6 0.281824 32 0.281819 -22.7 1.1 2.41 515 8 99 2
A591_seq2_26 0.0275 23 0.00098 6 1.46714 1.88612 8 0.282041 33 0.282032 -15.4 1.2 2.01 503 7 90 2
A592_seq2_26 0.0075 30 0.000229 1.46713 1.88667 8 0.281024 41 0.281014 -5.7 1.5 3.12 2506 14 93 2
A594_seq2_26 0.0137 16 0.00046 4 1.46720 1.88664 6 0.281081 26 0.281058 -1.9 0.9 2.99 2602 12 94 2
A595_seq2_26 0.0304 26 0.00097 6 1.46709 1.88663 6 0.281052 30 0.281003 -3.3 1.1 3.08 2627 12 91 2
A596_seq2_40 0.0104 18 0.00033 5 1.46727 1.88687 15 0.281098 25 0.281081 -0.8 0.9 2.94 2613 14 93 2
A597_seq2_40 0.0233 23 0.00077 6 1.46724 1.88705 12 0.282713 30 0.282706 8.8 1.1 0.69 520 8 96 2
A598_seq2_40 0.0235 20 0.00074 5 1.46719 1.88673 11 0.281440 24 0.281411 -2.7 0.8 2.56 2029 38 98 2
Quoted uncertainties (absolute) relate to the last quoted figure. The effect of the inter-element fractionation on Lu/Hf was estimated to be about 6 % or less
based on analyses of the GJ-ϭ ĂŶĚ WůĞƐŽǀŝēĞ njŝƌĐŽŶ͘ ĐĐƵƌĂĐLJ ĂŶĚ ƌĞƉƌŽĚƵĐŝďŝůŝƚLJ ǁĂƐ ĐŚĞĐŬĞĚ ďLJ ƌĞƉĞĂƚĞĚ ĂŶĂůLJƐĞƐ ŽĨ ƌĞĨĞƌĞŶĐĞ njircon GJ-ϭ ĂŶĚ WůĞƐŽǀŝēĞ
(data given as mean with 2 standard deviation uncertainties).
(a)176 Yb/177 Hf = (176Yb/173Yb)true x (173Yb/177 Hf)meas x (M 173(Yb)/M 177(Hf))ɴ;,ĨͿ͕ ɴ;,ĨͿ с ůŶ;;179Hf/ 177Hftrue)/(179 Hf/177Hf measured)) / ln(M179(Hf)/M177(Hf)), M = mass of
respective isotopes. The 176 Lu/177Hf was calculated in a similar way using 175Lu/177,Ĩ ĂŶĚ ɴ;zďͿ͘
(b)Mean Hf signal in volts.
(c) Uncertainties are quadratic additions of the within-run precision and the daily reproducibility of the 40ppb-JMC475 solution. Uncertainties for the JMC475
quoted at 2SD (2 standard deviation).
(d)Initial 176Hf/177,Ĩ ĂŶĚ ɸ,Ĩ ĐĂůĐƵůĂƚĞĚ ƵƐŝŶŐ ƚŚĞ ĂƉƉĂƌĞŶƚ h-Pb age determined by LA-ICP-MSdating (see column f), and the CHUR parameters: 176Lu/177Hf =
0.0336, and 176 Hf/177Hf = 0.282785 (Bouvier et al. 2008).
(e)Two stage model age in Ga using measured 176Lu/177Lu of each spot (first stage = age of zircon), a value of 0.0113 for the average continental crust (second
stage, values compiled from Rudnick and Gao (2003), and depleted mantle 176Lu/177Lu = 0.0379, and 176Hf/177Hf = 0.283164.
(f)Apparent U-Pb age determined by LA-ICP-MS.
(g)U-Pb age concordance (%).
(h)Sequence in which Lu-Hf analyses were performed. Standard analyses for each sequence are showed on Table 12.
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