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. Author manuscript; available in PMC: 2020 Apr 3.
Published in final edited form as: Geochim Cosmochim Acta. 2019 Jun 22;260:133–160. doi: 10.1016/j.gca.2019.06.023

Table 2.

Al-Mg istotope systematics of QUE 99177,49 and MET 00426,46 chondrules.

chondrule spot/phase 27Al/24Mg (2SE) *δ26Mg (2SE)
Q7. 1. Pl 44.11 ± 0.31 0.92 ± 0.91
Mg#: 99.0 (+0.2,−0.1)(a) 2. Pl 44.05 ± 0.31 1.22 ± 0.87
Δ17O: −5.2 (± 0.5)‰(b) 3. Pl 46.11 ± 0.33 1.15 ± 0.94
isochron MSWD: 0.2 4. Pl 37.80 ± 0.27 1.57 ± 1.24
*δ26Mg0: 0.04 ± 0.04 5. Pl 39.37 ± 0.27 1.06 ± 1.07
(26Al/27Al)0: (3.5 ± 1.3) × 10−6 6. Pl 40.61 ± 0.28 0.87 ± 0.89
Myr after CAIs: 2.8 (−0.3/+0.5) 7. LPx 0.0230 ± 0.00230(c) 0.02 ± 0.07
8. LPx 0.0298 ± 0.00298 0.05 ± 0.07
9. Ol 0.0004 ± 0.00004 0.03 ± 0.08
10. Ol 0.0003 ± 0.00003 0.05 ± 0.08
Q13. 1. Pl 37.44 ±0.14 0.78 ± 1.02
Mg#: 98.4 (+0.2,−0.2) 2. Pl 37.81 ±0.20 0.28 ± 0.93
Δ17O: −1.9 (± 0.6)‰ 3. Pl 34.84 ±0.13 0.46 ± 0.84
isochron MSWD: 1.6 4. Pl 31.78 ±0.15 −0.34 ± 1.11
*δ26Mg0: 0.01 ± 0.04 5. Ol 0.0017 ±0.00017 −0.02 ± 0.08
(26Al/27Al)0: (1.3 ± 1.7) × 10−6 6. Ol 0.0027 ±0.00027 −0.07 ± 0.08
Myr after CAIs: >2.9 7. LPx 0.0281 ±0.00281 0.05 ± 0.07
8. LPx 0.0341 ±0.00341 0.06 ± 0.07
Q15. 1. Pl 35.77 ±0.25 0.04 ± 0.96
Mg#: 98.6 (+0.1,−0.3) 2. Pl 34.48 ±0.14 −0.29 ± 0.93
Δ17O: −2.8 (± 0.5)‰ 3. Pl 38.15 ±0.14 0.83 ± 1.03
isochron MSWD: 1.0 4. Pl 36.59 ±0.26 −0.20 ± 0.96
*δ26Mg0: 0.00 ± 0.04 5. Pl 34.36 ±0.24 −0.89 ± 1.05
(26Al/27Al)0: (−0.3 ± 1.7) × 10−6 6. LPx 0.0149 ±0.00149 0.02 ± 0.07
Myr after CAIs: >3.7 7. LPx 0.0276 ±0.00276 −0.01 ± 0.06
8. Ol 0.0007 ±0.00007 −0.02 ± 0.08
9. Ol 0.0017 ±0.00017 −0.02 ± 0.08
Q16. 1. Pl 39.47 ±0.27 1.38 ± 1.01
Mg#: 99.0 (+0.2,−0.3) 2. Pl 37.96 ±0.26 1.97 ± 1.16
A17O: −5.0 (± 0.6)‰ 3. Pl 36.16 ±0.25 1.28 ± 1.20
isochron MSWD: 0.4 4. Pl 37.45 ±0.26 1.43 ± 0.87
*526Mg0: 0.04 ± 0.01 5. Pl 41.72 ±0.29 1.21 ± 1.05
(26Al/27Al)0: (5.2 ± 1.7) × 10−6 6. Ol 0.0003 ±0.00003 0.00 ± 0.08
Myr after CAIs: 2.4 (−0.3/+0.4) 7. Ol 0.0003 ±0.00003 −0.02 ± 0.08
8. LPx 0.0286 ±0.00286 0.04 ± 0.06
9. LPx 0.0166 ±0.00166 0.00 ± 0.06
Q19. 1. Pl 30.13 ±0.31 0.54 ± 1.04
Mg#: 98.7 (+0.7,−0.8) 2. Pl 36.57 ±0.14 0.63 ± 1.16
Δ17O: −4.9 (± 0.9)‰ 3. Pl 37.70 ±0.14 0.15 ± 1.17
isochron MSWD: 0.3 4. Pl 33.71 ±0.17 0.37 ± 1.15
*δ26Mg0: 0.00 ± 0.04 5. Pl 34.93 ±0.27 −0.16 ± 1.32
(26Al/27Al)0: (1.2 ± 2.0) × 10−6 6. Pl 35.98 ±0.19 0.03 ± 1.24
Myr after CAIs: >2.9 7. Ol 0.0014 ±0.00014 −0.04 ± 0.13
8. Ol 0.0014 ±0.00014 −0.06 ± 0.13
9. LPx 0.0175 ±0.00175 0.01 ± 0.06
10. LPx 0.0234 ±0.00234 0.00 ± 0.07
Q35. 1. Pl 24.82 ±0.18 −0.37 ± 1.25
Mg#: 98.3 (+0.2,−0.3) 2. Pl 28.11 ±0.23 −0.71 ± 1.28
Δ17O: −2.1 (± 0.8‰ 3. Pl 26.57 ±0.19 0.76 ± 1.51
isochron MSWD: 1.0 4. Pl 25.35 ±0.11 0.61 ± 1.11
*δ26Mg0: −0.04 ± 0.05 5. Pl 26.07 ±0.09 −0.58 ± 0.72
(26Al/27Al)0: (−1.0 ± 2.5) × 10−6 6. Ol 0.0003 ±0.00003 −0.06 ± 0.13
Myr after CAIs: >3.6 7. Ol 0.0003 ±0.00003 −0.01 ± 0.13
8. LPx 0.0742 ±0.00742 −0.04 ± 0.06
Q36. 1. Pl(d) 33.95 ±0.33 −0.52 ± 1.33
Mg#: 97.4 (+0.7,−0.9) 2. Pl 30.31 ±0.22 −0.32 ± 1.78
Δ17O: −1.7 (± 0.3)‰ 3. Pl(d) 32.89 ±0.12 −0.01 ± 1.86
isochron MSWD: 0.2 4. Pl 32.45 ±0.23 −0.88 ± 1.62
*δ26Mg0: −0.01 ± 0.04 5. Ol 0.0014 ±0.00014 0.02 ± 0.13
(26Al/27Al)0: (−2.0 ± 3.3) × 10−6 6. LPx 0.0238 ±0.00238 −0.02 ± 0.06
Myr after CAIs: >3.7 7. LPx 0.0139 ±0.00139 0.01 ± 0.06
8. Ol 0.0023 ±0.00023 −0.03 ± 0.13
Q38. 1. Pl 28.98 ±0.11 1.62 ± 1.11
Mg#: 99.0 (+0.1,−0.2) 2. Pl 31.86 ±0.12 1.40 ± 1.30
Δ17O: −5.3 (± 0.8)‰ 3. Pl 30.94 ±0.15 1.88 ± 0.97
isochron MSWD: 2.1 4. Pl 27.36 ±0.10 1.15 ± 1.12
*δ26Mg0: −0.03 ± 0.07 5. Pl 31.08 ±0.13 0.26 ± 1.04
(26Al/27Al)0: (6.0 ± 3.9) × 10−6 6. Ol 0.0006 ±0.00006 −0.01 ± 0.12
Myr after CAIs: 2.2 (−0.5/+1.1) 7. Ol 0.0004 ±0.00004 0.13 ± 0.12
8. LPx 0.0189 ±0.00189 −0.05 ± 0.07
9. LPx 0.0317 ±0.00317 −0.06 ± 0.06
Q44. 1. Pl 37.51 ±0.26 −0.27 ± 1.43
Mg#: 98.3 (+0.2,−0.2) 2. Pl 31.65 ±0.12 −0.18 ± 0.82
Δ17O: −2.4 (± 0.5)% 3. Pl 35.69 ±0.15 0.48 ± 1.35
isochron MSWD: 0.7 4. Pl 32.25 ±0.23 0.02 ± 1.54
*δ26Mg0: 0.02 ± 0.04 5. Pl 33.69 ±0.24 −1.04 ± 1.36
(26Al/27Al)0: (−0.9 ± 2.2) × 10−6 6. LPx 0.0230 ±0.00230 0.00 ± 0.06
Myr after CAIs: >3.7 7. LPx 0.0277 ±0.00277 0.05 ± 0.06
8. LPx 0.0239 ±0.00239 0.01 ± 0.06
M3. 1. Pl 49.10 ±0.25 −0.08 ± 1.01
Mg#: 94.2 (+1.0,−0.7) 2. Pl 51.11 ±0.25 0.74 ± 1.02
Δ17O: −0.9 (± 0.4)‰ 3. Pl 56.20 ±0.44 −1.30 ± 1.43
isochron MSWD: 1.2 4. Pl 53.74 ±0.36 0.12 ± 1.25
*δ26Mg0: 0.04 ± 0.06 5. Pl 62.24 ±0.32 0.68 ± 1.42
(26Al/27Al)0: (0.2 ± 1.4) × 10−6 6. LPx 0.0466 ±0.00466 −0.01 ± 0.10
Myr after CAIs: >3.6 7. LPx 0.0287 ±0.00287 0.05 ± 0.10
8. LPx 0.0439 ±0.00439 0.04 ± 0.10
M6. 1. Pl 38.90 ±0.21 0.69 ± 1.15
Mg#: 99.0 (+0.1,−0.1) 2. Pl 37.16 ±0.21 1.03 ± 1.07
Δ17O: −4.2 (± 0.6)‰ 3. Pl 37.65 ±0.20 1.71 ± 1.05
isochron MSWD: 0.5 4. Pl 37.59 ±0.19 1.42 ± 0.94
*δ26Mg0: 0.04 ± 0.04 5. Pl 39.77 ±0.21 0.65 ± 1.08
(26Al/27Al)0: (4.0 ± 1.7) × 10−6 6. Ol 0.0007 ±0.00007 0.05 ± 0.08
Myr after CAIs: 2.6 (−0.4/+0.6) 7. Ol 0.0013 ±0.00013 0.04 ± 0.08
8. LPx 0.0163 ±0.00163 0.04 ± 0.08
9. LPx 0.0265 ±0.00265 0.03 ± 0.07
M23. 1. Pl 30.76 ±0.16 0.95 ± 0.90
Mg#: 99.2 (+0.1,−0.1) 2. Pl 28.89 ±0.14 1.07 ± 0.76
Δ17O: −4.7 (± 0.4)% 3. Pl 29.89 ±0.16 1.88 ± 0.91
isochron MSWD: 0.7 4. Pl 30.54 ±0.34 1.36 ± 0.85
*δ26Mg0: 0.00 ± 0.08 5. Pl(d) 31.54 ±0.20 1.23 ± 1.86
(26Al/27Al)0: (6.0 ± 2.0) × 10−6 6. Ol 0.0004 ±0.00004 −0.01 ± 0.08
Myr after CAIs: 2.2 (−0.3/+0.4)
(a)

bracketed values represent the range of measured Mg#s, as reported in Tenner et al. (2015).

(b)

bracketed values are the 2SD of multiPle measurements per chondrule used to define the averaged “host” chondrule Δ17O, as reported in Tenner et al. (2015)

(c)

27Al/24Mg uncertainties are estimated as 10% of the reported value.

See main text for details

(d)

analyses inadvertantly profiled into high-Ca pyroxene grains. As a result, fewer Plagioclase cycles were used to determine 27Al/24Mg and *δ26Mg (215, 151, and 96 cycles for Q36 #’s 1 & 3, and M23 #5, respectively).