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. Author manuscript; available in PMC: 2016 Jul 15.
Published in final edited form as: Meteorit Planet Sci. 2015 Jul 16;50(7):1197–1216. doi: 10.1111/maps.12461

Table 3.

Pb isotope data for Gujba chondrules and metal.

Sample Acid Treatment Durationa Pb (pg) 206Pb/204Pb (raw) 204Pb/206Pb 2SE(%) 207Pb/206Pb 2SE(%) Rhob
Gujba chondrule C1 (123.7 mg)
    L1 1M HBr US/HP(110°)/US 5/15/5 172.6     22.99 0.043284       0.48 0.804549 0.11 0.01
    L2 2M HCl US/HP/US 5/5/5 not analyzed
    L3 3M HNO3 US/HP/US 5/5/5 155.2     27.01 0.036804       0.54 0.779517 0.11 0.22
    L4* 4M HNO3 US/HP/US 5/10/5 296.6     24.90 0.039976       0.21 0.793531 0.05 0.15
    L5* 2M HCl US/HP/US 5/45/5 936.4     22.37 0.044563       0.05 0.812981 0.02 0.02
    L6* 6M HCl US/HP/US 5/5/5 204.2     23.24 0.042813       0.22 0.805733 0.05 0.16
    L7* 6M HCl US/HP/US 5/45/5 524.3     32.66 0.030470       0.25 0.753047 0.06 0.16
    L8* 1M HF US/HP/US 5/5/5 821.2   312.86 0.003152       2.92 0.636627 0.08 0.90
    L9* 1M HF US/HP/US 5/30/5   74.4   457.64 0.001796     75.42 0.631000 0.68 0.96
    L10* 7M HF US/HP/US 5/20/5   37.3   282.83 0.002780   104.99 0.634891 1.33 0.95
    L11 7M HF US/HP/US 5/30/5     9.5   180.56 0.002706 1338.37 0.635121 5.40 0.99
    L12* 28M HF-14M HNO3 US/HP/US 5/35/5 172.6   216.80 0.004434     10.17 0.642373 0.29 0.90
    Residue 28M HF-14M HNO3 HP(130°) 48 h 316.5   353.44 0.002730       9.12 0.635330 0.17 0.92
Gujba chondrule C2 (91.8 mg)
    L1* 1M HBr US/HP(110°)/US 5/15/5 306.5     34.01 0.029277       0.13 0.749502 0.04 0.03
    L2 2M HCl US/HP/US 5/5/5 236.6     34.07 0.029196       0.14 0.749622 0.04 0.08
    L3* 3M HNO3 US/HP/US 5/5/5   87.0     50.65 0.019520       0.80 0.707417 0.10 0.33
    L4* 4M HNO3 US/HP/US 5/10/5   69.4     39.19 0.025301       0.65 0.732209 0.10 0.21
    L5 2M HCl US/HP/US 5/45/5 165.6     50.01 0.019848       0.42 0.709308 0.06 0.14
    L6* 6M HCl US/HP/US 5/55/5   74.6     74.15 0.013263       1.63 0.680927 0.13 0.48
    L7* 6M HCl US/HP/US 5/45/5 219.5   118.55 0.008340       0.97 0.659284 0.06 0.91
    L8 1M HF US/HP/US 5/5/5 937.2 3793.92 0.000246       8.95 0.625183 0.03 0.15
    L9 1M HF 7M US/HP/US 5/30/5 not analyzed
    L10* HF US/HP/US 5/20/5 192.9 1172.49 0.000770     14.19 0.626443 0.19 0.92
    L11* 7M HF US/HP/US 5/30/5   48.8   694.56 0.001125     42.35 0.627994 0.27 0.93
    L12 28M HF-14M US/HP/US 5/30/5 48 h not analyzed
    Residue* HNO3 28M HF-14M HNO3 HP(130°) 48 h   73.4   447.44 0.002022     13.92 0.632020 0.18 0.92
Gujba chondrule C3
    W1-9* Eth-Ace-H2O N/A N/A 124.0     24.40 0.040528       2.07 0.800227 0.07 0.34
    L1* 2M HBr N/A N/A 160.6     88.76 0.010740       2.43 0.670627 0.18 0.77
    L2 2M HCl N/A N/A   12.1     44.73 0.019363     16.51 0.706436 1.63 0.99
    L3 H2O N/A N/A   68.0     40.87 0.005001     13.33 0.640873 0.41 0.99
    L4* 4M HNO3 N/A N/A   68.1   165.50 0.004783     13.96 0.643821 0.41 0.96
    L5* 2M HCl N/A N/A   18.3   103.19 0.005506     54.47 0.646915 1.47 0.99
    L6 6M HCl N/A N/A   60.6     66.12 0.013902       4.65 0.688617 0.37 0.95
    L7* 1M HF N/A N/A 396.5 1070.14 0.000703     17.27 0.626642 0.11 0.92
    L8* 1M HF N/A N/A 421.4 1400.21 0.000494     24.07 0.625614 0.12 0.89
    L9* 6M HCl N/A N/A   41.3   191.96 0.003110     41.36 0.636903 0.74 0.92
    L10* 28M HF-14M HNO3 N/A N/A 355.0   555.90 0.001540       8.41 0.630132 0.12 0.95
Gujba chondrule C4 (43.1 mg)
    L1* 1M HBr US/HP(110°)/US 5/5/5   43.6     77.14 0.012615       3.17 0.678423 0.20 0.39
    L2* 2M HCl US/HP/US 5/5/5   23.7     73.46 0.013013       5.18 0.679736 0.38 0.84
    L3* 3M HNO3 US/HP/US 5/5/5   15.8     73.15 0.012790       8.04 0.678955 0.57 0.88
    L4* 4M HNO3 US/HP/US 5/20/5   35.5     64.00 0.015208       2.78 0.688535 0.24 0.78
    L5* 2M HCl US/HP/US 5/45/5   42.1     94.15 0.010263       3.90 0.667634 0.24 0.83
    L6* 6M HCl US/HP/US 5/5/5   20.4   169.13 0.005198     18.44 0.646100 0.55 0.94
    L7* 6M HCl US/HP/US 5/60/5 109.5   530.83 0.001744     10.42 0.631045 0.12 0.70
    L8* 1M HF US/HP/US 5/5/5 211.9 3477.06 0.000217     50.18 0.624556 0.07 0.90
    L9* 1M HF US/HP/US 5/15/5 147.7 1340.34 0.000645     21.87 0.625817 0.10 0.92
    L10* 7M HF US/HP/US 5/20/5   20.9   626.60 0.000894   179.67 0.627417 0.59 0.92
    L11 7M HF US/HP/US 5/20/5     8.7   324.79 0.001427   459.68 0.629433 1.41 0.91
    L12* 28M HF-14M HNO3 US/HP/US 5/30/5   42.3   751.45 0.000983     56.53 0.627605 0.31 0.87
    Residue* 28M HF-14M HNO3 HP(130°) 24 h   76.2   255.14 0.003715       6.65 0.639077 0.23 0.48
Gujba metal (86.3 mg)
    W5 H20 HP(120°) 24 h     7.74     17.51 0.056500       1.65 0.867823 0.62
    L1 0.5M HBr HP/US 90/5   49.79     14.36 0.069536       0.48 0.928997 0.19
    L2 0.5M HBr HP/US 90/5   34.84     11.88 0.084182       1.06 0.999697 0.43
    L3 1M HBr HP/US 60/5   23.94     12.25 0.081650       1.41 0.986839 0.58
    L4 2M HCl HP/US 30/5   14.45     11.46 0.087499       2.63 1.015070 1.13
    L5 6M HCl HP/US 30/5     9.59     11.27 0.089425       4.11 1.025297 1.81
    Residue 6M HCl HP(130°) 48 h   24.84     12.81 0.077946       1.25 0.972664 0.51

All fractions subjected to a precleaning routine of five cycles of ethanol, acetone, and water on the hotplate and ultrasonic followed by six steps of 0.02M HBr on the hotplate and ultrasonic bath.

The 206Pb/204Pb reflects the raw 206Pb/204Pb ratio and is not corrected for mass fractionation, blank contribution, and spike addition. All other ratios are corrected for mass fractionation (using the 205Pb/202Pb), blank contribution, and spike addition, and these corrections are propagated in the quoted uncertainties.

a

Time in minutes unless indicated as hours by “h.”

*

Fractions included in regression calculations.

b

The Rho value is the error correlation between 204Pb/206Pb and 207Pb/206Pb ratios.

US = ultrasonic bath; HP = hotplate.