This sample belongs to: Sebastian Zapata
Sample Name: H2
IGSN: IESZH0010
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 ID: H2
Sample Description:
GeoObject Type: Other
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: -27.045555555556
Longitude: -66.681666666667
Sample Comment:
Collector:
Material Classification:
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country:
Provice:
County:
City Or Township:
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Platform ID:
Original Archival Institution:
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Most Recent Archival Contact:
Analysis Purpose |
Value |
Error |
Age Type |
MSWD |
Age Error Systematic |
Included Analyses |
Comment |
SingleAge |
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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 |
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H2_A |
Apatite |
26.46625933243 |
2.3012472721509 |
54.453159394019 |
3.2909298899577 |
21.462473936665 |
0.062442967411523 |
4.8003813386736 |
1.2229611004406 |
0.60683760683761 |
H2_B |
Apatite |
29.768006918936 |
1.8796892205003 |
66.50568070271 |
11.805615293213 |
25.958720314216 |
0.18340782890238 |
6.5922539350788 |
1.0936573793775 |
0.59046283309958 |
H2_D |
Apatite |
8.3202325431107 |
0.76276851381171 |
36.957662970203 |
5.7756740033395 |
18.001564361677 |
0.16146788537218 |
1.0573891974213 |
1.3170350312437 |
0.61294261294261 |
H2_C |
Apatite |
13.285205687422 |
0.58564617452717 |
62.240661605678 |
70.475926792675 |
25.570212352447 |
1.1699157327036 |
3.5337231337693 |
1.3027148884437 |
0.62319234163894 |
filename:19410.xml