This sample belongs to: gaétan milesi
Sample Name: ST9
IGSN: IEMIL0004
Laboratory: Géosciences Montpellier
Analyst: Gaétan Milesi
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: ST9
Sample Description:
GeoObject Type: Individual Sample
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: 42.49203
Longitude: 2.17351
Sample Comment:
Collector: Gaétan Milesi
Material Classification:
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country:
Provice:
County:
City Or Township:
Platform:
Platform ID:
Original Archival Institution:
Original Archival Contact:
Most Recent Archival Institution: University of Montpellier
Most Recent Archival Contact:
| 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:
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 |
| ST9a |
apatite |
24.678943110434 |
1.8 |
46.596872891005 |
17.706283119163 |
|
0.3799886563328 |
5.25 |
5.64 |
0.79 |
| ST9b |
apatite |
20.375818040593 |
1.4 |
38.570874535274 |
10.207017643101 |
|
0.26463018446124 |
3.67 |
7.15 |
0.82 |
| ST9c |
apatite |
24.542454461242 |
1.7 |
59.803012443179 |
25.752592227473 |
|
0.43062366217657 |
6.99 |
7.08 |
0.81 |
| ST9d |
apatite |
27.756740209798 |
2 |
54.04705163685 |
19.794722630316 |
|
0.36624981438986 |
7.26 |
5.83 |
0.84 |
filename:23215.xml