This sample belongs to: Amy Moser
Aliquot Name: LBC-17
IGSN: IEAM20006
Stratigraphic Formation Name: Orocopia Schist
Stratigraphic Age:
Rock Type: schist
Mineral: zircon
Latitude: 33.600956
Longitude: -115.897214
Internal Uncertainty Level:
External Uncertainty 206/238 (% two sigma):
External Uncertainty 206/207 (% two sigma):
Analysis Purpose: zircon crystallization age
Laboratory Name: University of Utah ICP-MS Metals and Strontium Isotope Facility
Analyst Name: Amy Moser, Michael Stearns
Aliquot Reference: 91500 and Plešovice
Aliquot Instrumental Method: LA-ICP-MS
Aliquot Instrumental Reference:
Aliquot Instrumental Reference: IEAM20006
| Analysis Name |
U |
206Pb/204Pb |
U/Th |
206Pb/207Pb |
± (%) |
207Pb/235U |
± (%) |
206Pb/238U |
± (%) |
error corr. |
206Pb/238U Age |
± (Ma) |
207Pb/235U Age |
± (Ma) |
206Pb/207Pb Age |
± (Ma) |
Best age |
± (Ma) |
Conc. |
| 1 |
|
|
|
20.8768 |
5.3 |
0.1165 |
4.8 |
0.0174 |
1.8 |
0.19 |
111.0 |
2.0 |
112.0 |
5.0 |
94.0 |
5.0 |
111.0 |
2.0 |
99.5 |
| 2 |
|
|
|
19.3162 |
1.4 |
0.1004 |
2.0 |
0.0141 |
0.6 |
0.63 |
90.0 |
2.0 |
97.0 |
2.0 |
275.0 |
6.0 |
90.0 |
2.0 |
92.8 |
| 3 |
|
|
|
20.7082 |
1.7 |
0.1008 |
2.0 |
0.0151 |
1.0 |
0.48 |
97.0 |
2.0 |
98.0 |
2.0 |
114.0 |
2.0 |
97.0 |
2.0 |
99.3 |
| 4 |
|
|
|
20.4499 |
3.4 |
0.1033 |
3.3 |
0.0151 |
1.0 |
0.26 |
97.0 |
2.0 |
100.0 |
3.0 |
143.0 |
5.0 |
97.0 |
2.0 |
97.0 |
| 5 |
|
|
|
20.2429 |
2.3 |
0.1117 |
2.4 |
0.0162 |
0.8 |
0.20 |
103.0 |
2.0 |
108.0 |
3.0 |
167.0 |
4.0 |
103.0 |
2.0 |
96.2 |
| 6 |
|
|
|
20.7039 |
2.5 |
0.1166 |
2.6 |
0.0173 |
0.7 |
0.15 |
111.0 |
2.0 |
112.0 |
3.0 |
114.0 |
3.0 |
111.0 |
2.0 |
99.0 |
| 7 |
|
|
|
20.7039 |
2.9 |
0.1142 |
2.9 |
0.0172 |
0.9 |
0.09 |
110.0 |
2.0 |
110.0 |
3.0 |
114.0 |
3.0 |
110.0 |
2.0 |
100.2 |
| 8 |
|
|
|
20.429 |
1.4 |
0.1011 |
2.0 |
0.015 |
0.6 |
0.42 |
96.0 |
2.0 |
98.0 |
2.0 |
145.0 |
3.0 |
96.0 |
2.0 |
98.4 |
| 9 |
|
|
|
20.7469 |
3.3 |
0.1027 |
3.7 |
0.0152 |
1.4 |
0.42 |
97.0 |
2.0 |
99.0 |
4.0 |
109.0 |
4.0 |
97.0 |
2.0 |
97.8 |
| 10 |
|
|
|
20.938 |
2.1 |
0.1031 |
2.3 |
0.0155 |
0.8 |
0.33 |
99.0 |
2.0 |
100.0 |
2.0 |
87.0 |
2.0 |
99.0 |
2.0 |
99.7 |
| 11 |
|
|
|
20.8855 |
1.9 |
0.0955 |
2.0 |
0.0143 |
0.6 |
0.09 |
92.0 |
2.0 |
93.0 |
2.0 |
93.0 |
2.0 |
92.0 |
2.0 |
99.0 |
| 12 |
|
|
|
20.9644 |
2.7 |
0.0965 |
2.8 |
0.0147 |
0.7 |
0.08 |
94.0 |
2.0 |
94.0 |
3.0 |
84.0 |
2.0 |
94.0 |
2.0 |
100.3 |
| 13 |
|
|
|
20.3335 |
1.2 |
0.165 |
2.0 |
0.0245 |
0.7 |
0.56 |
156.0 |
3.0 |
155.0 |
3.0 |
156.0 |
3.0 |
156.0 |
3.0 |
100.6 |
| 14 |
|
|
|
20.0401 |
2.4 |
0.168 |
2.4 |
0.024 |
0.7 |
0.00 |
153.0 |
3.0 |
158.0 |
4.0 |
190.0 |
5.0 |
153.0 |
3.0 |
97.0 |
| 15 |
|
|
|
21.2314 |
3.5 |
0.0925 |
3.6 |
0.014 |
1.4 |
0.27 |
90.0 |
2.0 |
90.0 |
3.0 |
54.0 |
2.0 |
90.0 |
2.0 |
100.0 |
| 16 |
|
|
|
20.8725 |
1.6 |
0.0952 |
2.0 |
0.0144 |
0.5 |
0.24 |
92.0 |
2.0 |
92.0 |
2.0 |
95.0 |
2.0 |
92.0 |
2.0 |
99.5 |
| 17 |
|
|
|
20.9205 |
3.1 |
0.0951 |
3.4 |
0.0147 |
0.9 |
0.36 |
94.0 |
2.0 |
92.0 |
3.0 |
89.0 |
3.0 |
94.0 |
2.0 |
101.7 |
| 18 |
|
|
|
20.6058 |
1.4 |
0.1293 |
2.0 |
0.0193 |
0.6 |
0.44 |
123.0 |
2.0 |
123.0 |
2.0 |
125.0 |
3.0 |
123.0 |
2.0 |
100.0 |
| 19 |
|
|
|
20.3915 |
1.8 |
0.1298 |
2.4 |
0.0193 |
2.1 |
0.64 |
123.0 |
3.0 |
124.0 |
3.0 |
150.0 |
3.0 |
123.0 |
3.0 |
99.4 |
| 20 |
|
|
|
20.6058 |
1.8 |
0.1201 |
2.0 |
0.018 |
0.7 |
0.35 |
115.0 |
2.0 |
115.0 |
2.0 |
125.0 |
3.0 |
115.0 |
2.0 |
100.0 |
| 21A |
|
|
|
20.5465 |
2.2 |
0.1067 |
2.3 |
0.0156 |
0.7 |
0.26 |
99.0 |
2.0 |
103.0 |
2.0 |
132.0 |
3.0 |
99.0 |
2.0 |
96.6 |
| 21B |
|
|
|
20.2881 |
1.6 |
0.0935 |
2.0 |
0.0139 |
0.6 |
0.41 |
89.0 |
2.0 |
91.0 |
2.0 |
162.0 |
3.0 |
89.0 |
2.0 |
98.1 |
| 22 |
|
|
|
19.9203 |
1.9 |
0.1746 |
2.1 |
0.0248 |
0.9 |
0.53 |
158.0 |
3.0 |
163.0 |
3.0 |
204.0 |
4.0 |
158.0 |
3.0 |
96.5 |
| 23 |
|
|
|
20.9688 |
1.4 |
0.092 |
2.0 |
0.0139 |
0.5 |
0.42 |
89.0 |
2.0 |
89.0 |
2.0 |
84.0 |
2.0 |
89.0 |
2.0 |
99.3 |
| 24 |
|
|
|
20.8768 |
1.5 |
0.0932 |
2.0 |
0.014 |
0.5 |
0.34 |
90.0 |
2.0 |
90.0 |
2.0 |
94.0 |
2.0 |
90.0 |
2.0 |
99.1 |
| 25 |
|
|
|
21.0084 |
2.5 |
0.0905 |
2.4 |
0.0136 |
0.8 |
0.36 |
87.0 |
2.0 |
88.0 |
2.0 |
79.0 |
2.0 |
87.0 |
2.0 |
98.8 |
| 26 |
|
|
|
20.6612 |
2.5 |
0.086 |
2.6 |
0.0126 |
1.4 |
0.25 |
81.0 |
2.0 |
84.0 |
2.0 |
119.0 |
3.0 |
81.0 |
2.0 |
96.6 |
| 27 |
|
|
|
19.4326 |
1.5 |
0.315 |
2.0 |
0.0446 |
0.7 |
0.42 |
281.0 |
6.0 |
278.0 |
6.0 |
261.0 |
5.0 |
281.0 |
6.0 |
101.1 |
| 28 |
|
|
|
20.9468 |
2.1 |
0.0903 |
2.3 |
0.0137 |
1.0 |
0.38 |
87.0 |
2.0 |
88.0 |
2.0 |
86.0 |
2.0 |
87.0 |
2.0 |
99.6 |
filename:22847.xml
