This sample belongs to: Trevor Waldien

Sample Details
Sample Name: 05MET
IGSN: IE757000P
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: Apatite
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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Age(s)
Analysis Purpose Value Error Age Type MSWD Age Error Systematic Included Analyses Comment
Cooling

Data Reduction Parameters
Spike Type U-Th-Sm:
Spike Type He:
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Fraction(s)
Fraction Name Mineral Age, Ma err., Ma U (ppm) Th (ppm) 147Sm (ppm) Th/U He (nmol/g) Mass (ug) Ft
05MET-1 apatite 4.58 0.27 18.39 1.77 209.69 0.10 0.30 0.88 0.59
05MET-2 apatite 5.14 0.31 27.90 2.85 315.01 0.10 0.54 1.27 0.63
05MET-3 apatite 6.25 0.38 19.18 3.21 192.20 0.17 0.42 0.80 0.58
05MET-4 apatite 5.11 0.31 35.81 4.35 240.04 0.12 0.67 1.41 0.63
filename:26588.xml
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