This sample belongs to: Laura Webb
Sample Name: 15AB23-psd2
IGSN: IEUVM0008
Laboratory: University of Vermont
Analyst: Jones
Sample Material: pseudotachylyte
Sample Material Type: Groundmass
Instrumental Method: peak hopping, intensity vs. time regressions
Instrumental Method Reference:
Decay Constant 40Ar Total: 5.464E-10
Decay Constant 40Ar Total Sigma: 9.9984998874831E-12
Decay Constant Reference: Steiger and Jäger (1977)
Standard Name: Fish Canyon
Standard Material: sanidine
Standard Age: 28.02
J-Value: 1.09E-3
J-Value Sigma: 4.90E-6
Sample ID: 23
Sample Description:
GeoObject Type: Individual Sample
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: -45.2438051
Longitude: 167.3313066
Sample Comment:
Collector: K.A. Klepeis
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 Vermont Geology Department and GNS Science Petlab collections
Most Recent Archival Contact:
| Analysis Purpose |
Experiments Included |
Preferred Age |
Preferred Age Sigma |
Preferred Age Sigma Internal |
Preferred Age Sigma External |
Preferred Age Type |
Preferred Age Classification |
Preferred Age Reference |
Preferred Age Description |
| Other |
|
|
|
|
|
|
|
|
|
| ID |
Power |
40Ar/39Ar |
37Ar/39Ar |
36Ar/39Ar |
39ArK |
K/Ca |
40Ar* |
39Ar |
Age |
Age Error 1s |
| (step) |
(Watts) |
|
|
|
(CPS) |
|
(%) |
(cumulative %) |
(Ma) |
(Ma) |
| 3.8 |
3.8 |
|
|
1.21E-2 |
20005.3 |
|
36.0 |
5.8871168223217 |
4.0676881697152 |
0.20010087071969 |
| 3.9 |
3.9 |
|
|
1.94E-3 |
28658.9 |
|
81.9 |
14.320776727105 |
5.2064595182061 |
0.11552069180442 |
| 4.05 |
4.05 |
|
|
1.00E-3 |
32545.5 |
|
91.5 |
23.898195853456 |
6.3340948687589 |
0.12678086313078 |
| 4.2 |
4.2 |
|
|
1.68E-3 |
24007.4 |
|
86.6 |
30.963048379612 |
6.3971059901748 |
0.13483931919447 |
| 4.4 |
4.4 |
|
|
4.72E-3 |
18323.7 |
|
70.6 |
36.355310814 |
6.7246242783531 |
0.17175581377615 |
| 4.7 |
4.7 |
|
|
6.04E-3 |
17646.0 |
|
66.3 |
41.548122156079 |
7.0898443179467 |
0.1914066000556 |
| 5.1 |
5.1 |
|
|
2.28E-3 |
28697.4 |
|
85.0 |
49.993114188442 |
7.6542474095395 |
0.16263270080606 |
| 5.5 |
5.5 |
|
|
1.81E-3 |
39028.8 |
|
88.3 |
61.478411278481 |
8.0039603723577 |
0.16427072664851 |
| 5.8 |
5.8 |
|
|
2.03E-3 |
31106.8 |
|
86.7 |
70.632445352798 |
7.7868724696165 |
0.16334593970912 |
| 6.2 |
6.2 |
|
|
2.26E-3 |
26687.1 |
|
85.3 |
78.485855916634 |
7.7313358809843 |
0.1647342311278 |
| fuse |
fuse |
|
|
5.20E-3 |
73108.3 |
|
71.0 |
100 |
7.5148082469204 |
0.18906466733892 |
filename:18604.xml
