This sample belongs to: Trevor Waldien
Sample Name: 16ATW10
IGSN: IE757000Z
Laboratory: Univ. of Texas
Analyst: Trevor Waldien
Instrumental Method - He:
Instrumental Method Reference - He:
Instrumental Method - U-Th-Sm:
Instrumental Method Reference - U-Th-Sm:
Alpha Ejection Correction Method:
Alpha Ejection Correction Method Reference:
Mineral: Zircon
Comment:
238U Decay Constant: 1.55125E-10
238U Decay Constant Error:
235U Decay Constant: 9.84850E-10
235U Decay Constant Error:
232Th Decay Constant : 4.94750E-11
232Th Decay Constant Error:
230Th Decay Constant:
230Th Decay Constant Error:
238U/235U: 137.88
Decay Constant Reference: Steiger, R.H. and Jager, E., 1977, Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters, v. 36, no. 3, p. 359-362.
147Sm Decay Constant: 6.54E-12
147Sm Decay Constant Error:
147Sm Decay Constant Reference: Lugmair, G.W., and Marti, K., 1978, Lunar initial 143Nd/144Nd: differential evolution of the lunar crust and mantle: Earth and Planetary Science Letter, v. 39, p. 349-357.
Decay Constant Comment:
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Analysis Purpose |
Value |
Error |
Age Type |
MSWD |
Age Error Systematic |
Included Analyses |
Comment |
Cooling |
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Data Reduction Parameters
Spike Type U-Th-Sm:
Spike Type He:
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Standard Measured Age Error:
Data Reduction Comment:
Fraction Name |
Mineral |
Age, Ma |
err., Ma |
U (ppm) |
Th (ppm) |
147Sm (ppm) |
Th/U |
He (nmol/g) |
Mass (ug) |
Ft |
16ATW10-1 |
zircon |
33.98 |
2.72 |
80.08 |
26.46 |
0.00 |
0.33 |
12.05 |
5.02 |
0.76 |
16ATW10-2 |
zircon |
29.99 |
2.40 |
31.16 |
11.02 |
0.00 |
0.35 |
4.35 |
8.25 |
0.80 |
16ATW10-3 |
zircon |
25.98 |
2.08 |
486.64 |
140.77 |
0.00 |
0.29 |
55.63 |
5.02 |
0.76 |
filename:26594.xml