This sample belongs to: Gonzalo Ronda
Sample Name: TOR6
IGSN: IEGMR0019
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: TOR6
Sample Description:
GeoObject Type: Grab
Geoobject Classification:
Collection Method: Manual
Material: Rock
Latitude: -47.81935
Longitude: -73.71389
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 |
25.93 |
10.02 |
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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| zTOR6-1 |
zircon |
23.667200088501 |
0.097575046122074 |
187.21200561523 |
189.83142089844 |
5.3120223999023 |
1.0139917056847 |
22.598041534424 |
6.5732998847961 |
0.76215845346451 |
| zTOR6-2 |
zircon |
15.634741783142 |
0.0689881965518 |
463.27038574219 |
273.14353027344 |
6.1268447875977 |
0.58959851240188 |
34.442150115967 |
7.4183602333069 |
0.77383124828339 |
| zTOR6-3 |
zircon |
17.788427352905 |
0.080841764807701 |
791.24481201172 |
346.18442382813 |
19.858522033691 |
0.43751872817714 |
67.789505004883 |
12.804844856262 |
0.80917721986771 |
| zTOR6-4 |
zircon |
34.091842651367 |
0.14537072181702 |
217.77450561523 |
171.87436523438 |
9.468733215332 |
0.7892308824158 |
34.95991897583 |
4.7370591163635 |
0.73476225137711 |
| zTOR6-5 |
zircon |
38.483779907227 |
0.16391514241695 |
279.57412719727 |
222.70881347656 |
4.3649597167969 |
0.79660022802976 |
55.062728881836 |
11.753991127014 |
0.79718214273453 |
filename:26068.xml