This sample belongs to: Gonzalo Ronda
Sample Name: TOR3
IGSN: IEGMR0016
Laboratory: Dalhousie Noble Gas
Analyst: Roman Kislytsin
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: ZIRCON
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: TOR3
Sample Description:
GeoObject Type: Grab
Geoobject Classification:
Collection Method: Manual
Material: Rock
Latitude: -47.80043
Longitude: -73.3917
Sample Comment:
Collector: Gonzalo Ronda
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: Universidad de Buenos Aires
Most Recent Archival Contact: gonzaloronda@gmail.com
| Analysis Purpose |
Value |
Error |
Age Type |
MSWD |
Age Error Systematic |
Included Analyses |
Comment |
| Cooling |
18.17 |
4.41 |
average age with standard error |
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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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| zTOR3-1 |
zircon |
13.511747360229 |
0.056351311504841 |
623.38110351562 |
583.66025390625 |
24.591787719727 |
0.93628159502211 |
44.781444549561 |
13.559133529663 |
0.80688285827637 |
| zTOR3-2 |
zircon |
21.90998840332 |
0.093087717890739 |
1125.6802978516 |
922.2296875 |
33.430667114258 |
0.81926430555828 |
120.19313049316 |
6.1698341369629 |
0.75649619102478 |
| zTOR3-3 |
zircon |
14.139024734497 |
0.060228772461414 |
545.8603515625 |
436.54458007813 |
17.396487426758 |
0.79973674370842 |
40.887790679932 |
18.747627258301 |
0.82591444253922 |
| zTOR3-4 |
zircon |
22.047473907471 |
0.09239174425602 |
586.77331542969 |
528.54301757813 |
13.986515808105 |
0.90076185075165 |
69.100318908691 |
15.415856361389 |
0.81588298082352 |
| zTOR3-5 |
zircon |
19.22878074646 |
0.082964979112148 |
692.16076660156 |
498.77026367188 |
10.5973487854 |
0.72059886624431 |
66.389953613281 |
10.112078666687 |
0.78998446464539 |
filename:26065.xml