This sample belongs to: ANTONELLA GALETTO
Sample Name: TF_17 (AHe)
IGSN: IEATG1617
Laboratory: Arizona Radiogenic Helium Dating Laboratory (ARHDL). University of Arizona
Analyst: Prof. Peter Reiners
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:
Sample ID: TF_17
Sample Description: Sandstone
GeoObject Type: Individual Sample
Geoobject Classification:
Collection Method:
Material: Rock
Latitude:
Longitude:
Sample Comment:
Collector:
Material Classification:
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country: Argentina
Provice: Neuquén
County:
City Or Township:
Platform:
Platform ID:
Original Archival Institution:
Original Archival Contact:
Most Recent Archival Institution:
Most Recent Archival Contact:
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:
Standard Mineral:
Standard Mineral Reference:
Standard True Age:
Standard True Age Error:
Standard Measured Age:
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 |
|
|
(Raw) |
(Raw) |
(Ca) |
(Ca) |
(Ca) |
|
(Ca) |
|
|
TF_17_Ap1 |
Apatite |
22.7 |
0.3 |
73.601073757463 |
89.763139283265 |
322.15434114303 |
1.2511468137084 |
11.658112840533 |
6.7870111274532E-7 |
0.6 |
TF_17_Ap2 |
Apatite |
11.8 |
1.2 |
6.336801868766 |
25.639430909428 |
270.79088787854 |
4.1508079969977 |
0.81221586117912 |
7.265487875479E-7 |
0.6 |
TF_17_Ap3 |
Apatite |
29.6 |
0.5 |
39.219779427174 |
5.2381463962118 |
128.57794598404 |
0.13701460936465 |
6.500055063386 |
1.8536880709149E-6 |
0.7 |
TF_17_Ap4 |
Apatite |
6.2 |
0.5 |
3.2830808677658 |
15.142384383167 |
72.373711027456 |
4.7315897014902 |
0.23205178954499 |
6.5569238463311E-7 |
0.6 |
TF_17_Ap5 |
Apatite |
22.3 |
0.6 |
18.340245269535 |
7.7356083109315 |
296.76424984028 |
0.43269684020639 |
2.4680448576732 |
5.6913637136148E-7 |
0.6 |
filename:22592.xml