This sample belongs to: Sebastian Zapata

Sample Details
Sample Name: A002
IGSN: IESZH000S
Laboratory: University of Potsdam
Analyst: Edward Sobel
Instrumental Method - He: alphachron
Instrumental Method Reference - He:
Instrumental Method - U-Th-Sm: ICP-MS
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:

Sample Metadata
Sample ID: A002
Sample Description:
GeoObject Type: Other
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: -27.066666666667
Longitude: -66.650555555556
Sample Comment:
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Age(s)
Analysis Purpose Value Error Age Type MSWD Age Error Systematic Included Analyses Comment
SingleAge

Data Reduction Parameters
Spike Type U-Th-Sm:
Spike Type He:
Standard Mineral:
Standard Mineral Reference:
Standard True Age:
Standard True Age Error:
Standard Measured Age:
Standard Measured Age Error:
Data Reduction Comment:

Fraction(s)
Fraction Name Mineral Age, Ma err., Ma U (ppm) Th (ppm) 147Sm (ppm) Th/U He (nmol/g) Mass (ug) Ft
A002_A Apatite 87.744739386349 2.1632090906801 55.8393649006 5.5088020241749 29.107803576104 0.10193062351312 18.494504989389 2.1216732973734 0.67821067821068
A002_B Apatite 77.3164413696 3.5818270684003 67.850514938651 9.6385805283759 40.049347397943 0.14677359039964 17.038301762506 1.081930609305 0.57824933687003
A002_C Apatite 280.56960131222 9.0235397578608 81.297689856204 7.0755392013289 34.834041555944 0.089922696705712 85.533249214079 1.8747740703037 0.66812705366922
filename:19407.xml
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