This sample belongs to: Trevor Waldien

Sample Details
Sample Name: 07CSR08
IGSN: IE757001C
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
07CSR-08-1 apatite 22.58 1.35 6.69 18.61 51.47 2.78 0.98 3.44 0.70
07CSR-08-2 apatite 21.68 1.30 5.45 14.71 41.68 2.70 0.66 1.34 0.61
07CSR-08-3 apatite 21.93 1.32 9.32 23.61 48.47 2.53 1.02 0.96 0.56
filename:26607.xml
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