This sample belongs to: Amy Moser
Aliquot Name: MHS1
IGSN: IEAM20003
Stratigraphic Formation Name:
Stratigraphic Age:
Rock Type: gneiss
Mineral: zircon
Latitude: 33.62415
Longitude: -115.994708
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: IEAM20003
| 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 |
|
|
|
9.4769 |
1.8 |
4.059 |
6.4 |
0.2802 |
1.6 |
0.98 |
1592.0 |
32.0 |
1646.0 |
105.0 |
1723.0 |
31.0 |
1723.0 |
31.0 |
96.7 |
| 2 |
|
|
|
9.9187 |
1.8 |
3.69 |
6.4 |
0.2669 |
1.6 |
0.98 |
1525.0 |
31.0 |
1569.0 |
100.0 |
1639.0 |
30.0 |
1639.0 |
30.0 |
97.2 |
| 3 |
|
|
|
9.6637 |
1.8 |
3.456 |
6.4 |
0.2408 |
1.7 |
0.98 |
1391.0 |
28.0 |
1517.0 |
97.0 |
1687.0 |
31.0 |
1687.0 |
31.0 |
91.7 |
| 4 |
|
|
|
10.4998 |
1.8 |
3.251 |
6.3 |
0.246 |
1.4 |
0.99 |
1418.0 |
28.0 |
1469.0 |
93.0 |
1533.0 |
28.0 |
1533.0 |
28.0 |
96.5 |
| 5 |
|
|
|
10.3799 |
1.8 |
3.265 |
6.3 |
0.2428 |
1.4 |
0.99 |
1401.0 |
28.0 |
1473.0 |
93.0 |
1554.0 |
28.0 |
1554.0 |
28.0 |
95.1 |
| 6 |
|
|
|
10.6496 |
1.8 |
3.022 |
6.3 |
0.2299 |
1.3 |
0.96 |
1334.0 |
27.0 |
1413.0 |
89.0 |
1506.0 |
28.0 |
1506.0 |
28.0 |
94.4 |
| 7 |
|
|
|
11.0023 |
1.8 |
3.037 |
6.3 |
0.2375 |
1.4 |
0.97 |
1374.0 |
27.0 |
1417.0 |
89.0 |
1444.0 |
27.0 |
1444.0 |
27.0 |
96.9 |
| 8 |
|
|
|
9.9325 |
1.8 |
3.676 |
6.2 |
0.2584 |
1.2 |
0.96 |
1482.0 |
30.0 |
1566.0 |
98.0 |
1637.0 |
30.0 |
1637.0 |
30.0 |
94.6 |
| 9 |
|
|
|
9.7494 |
1.8 |
3.95 |
6.2 |
0.2736 |
1.1 |
0.90 |
1559.0 |
31.0 |
1624.0 |
101.0 |
1671.0 |
31.0 |
1671.0 |
31.0 |
96.0 |
| 10 |
|
|
|
10.0786 |
1.8 |
3.801 |
6.3 |
0.272 |
1.1 |
0.92 |
1551.0 |
31.0 |
1593.0 |
100.0 |
1610.0 |
30.0 |
1610.0 |
30.0 |
97.4 |
| 11 |
|
|
|
9.6824 |
1.8 |
4.013 |
6.3 |
0.2756 |
1.2 |
0.94 |
1569.0 |
31.0 |
1637.0 |
102.0 |
1684.0 |
31.0 |
1684.0 |
31.0 |
95.9 |
| 12 |
|
|
|
9.5942 |
1.9 |
3.987 |
6.2 |
0.2716 |
1.1 |
0.88 |
1549.0 |
31.0 |
1632.0 |
102.0 |
1701.0 |
32.0 |
1701.0 |
32.0 |
94.9 |
| 13 |
|
|
|
9.5338 |
1.8 |
4.221 |
6.2 |
0.2862 |
1.1 |
0.86 |
1623.0 |
32.0 |
1678.0 |
105.0 |
1712.0 |
31.0 |
1712.0 |
31.0 |
96.7 |
| 14 |
|
|
|
9.7628 |
1.8 |
3.835 |
6.3 |
0.2662 |
1.4 |
0.97 |
1521.0 |
30.0 |
1600.0 |
101.0 |
1669.0 |
30.0 |
1669.0 |
30.0 |
95.1 |
| 15 |
|
|
|
9.8522 |
1.8 |
3.799 |
6.2 |
0.2651 |
1.1 |
0.88 |
1516.0 |
30.0 |
1593.0 |
99.0 |
1652.0 |
30.0 |
1652.0 |
30.0 |
95.2 |
| 16 |
|
|
|
9.6759 |
1.8 |
3.985 |
6.2 |
0.2761 |
1.0 |
0.82 |
1572.0 |
31.0 |
1631.0 |
101.0 |
1685.0 |
31.0 |
1685.0 |
31.0 |
96.4 |
| 17 |
|
|
|
9.5021 |
1.8 |
4.012 |
6.2 |
0.273 |
1.0 |
0.91 |
1556.0 |
31.0 |
1637.0 |
102.0 |
1719.0 |
31.0 |
1719.0 |
31.0 |
95.1 |
| 18 |
|
|
|
11.6537 |
1.9 |
2.794 |
6.3 |
0.2322 |
1.1 |
0.63 |
1346.0 |
27.0 |
1354.0 |
85.0 |
1334.0 |
25.0 |
1334.0 |
25.0 |
99.4 |
| 19 |
|
|
|
9.6777 |
1.8 |
3.942 |
6.2 |
0.2738 |
1.0 |
0.90 |
1560.0 |
31.0 |
1622.0 |
101.0 |
1685.0 |
31.0 |
1685.0 |
31.0 |
96.2 |
| 20 |
|
|
|
11.6266 |
1.9 |
2.672 |
6.2 |
0.2223 |
1.1 |
0.67 |
1294.0 |
26.0 |
1321.0 |
82.0 |
1338.0 |
25.0 |
1338.0 |
25.0 |
98.0 |
| 21 |
|
|
|
10.5186 |
1.8 |
3.109 |
6.3 |
0.2333 |
1.4 |
0.98 |
1352.0 |
27.0 |
1435.0 |
90.0 |
1529.0 |
28.0 |
1529.0 |
28.0 |
94.2 |
| 22 |
|
|
|
20.3625 |
2.7 |
0.1558 |
6.6 |
0.0232 |
1.4 |
0.51 |
148.0 |
3.0 |
147.0 |
10.0 |
153.0 |
4.0 |
148.0 |
3.0 |
100.6 |
| 23 |
|
|
|
8.0392 |
1.8 |
5.341 |
6.2 |
0.3068 |
1.0 |
0.71 |
1725.0 |
34.0 |
1875.0 |
117.0 |
2020.0 |
37.0 |
2020.0 |
37.0 |
92.0 |
| 24 |
|
|
|
8.8496 |
1.8 |
4.289 |
6.2 |
0.2711 |
1.0 |
0.86 |
1546.0 |
31.0 |
1691.0 |
106.0 |
1848.0 |
34.0 |
1848.0 |
34.0 |
91.4 |
| 25 |
|
|
|
9.9522 |
1.9 |
3.738 |
6.2 |
0.2662 |
1.1 |
0.82 |
1521.0 |
30.0 |
1580.0 |
98.0 |
1633.0 |
31.0 |
1633.0 |
31.0 |
96.3 |
| 26 |
|
|
|
10.9782 |
1.8 |
2.874 |
6.2 |
0.2246 |
1.0 |
0.54 |
1306.0 |
26.0 |
1375.0 |
85.0 |
1448.0 |
26.0 |
1448.0 |
26.0 |
95.0 |
| 27 |
|
|
|
9.4171 |
1.8 |
4.134 |
6.2 |
0.2783 |
1.1 |
0.91 |
1583.0 |
32.0 |
1661.0 |
103.0 |
1735.0 |
32.0 |
1735.0 |
32.0 |
95.3 |
| 28 |
|
|
|
9.6965 |
1.8 |
3.991 |
6.2 |
0.2768 |
1.1 |
0.92 |
1575.0 |
32.0 |
1632.0 |
102.0 |
1681.0 |
31.0 |
1681.0 |
31.0 |
96.5 |
| 29 |
|
|
|
9.494 |
1.8 |
3.848 |
6.2 |
0.261 |
1.1 |
0.62 |
1495.0 |
30.0 |
1603.0 |
100.0 |
1720.0 |
32.0 |
1720.0 |
32.0 |
93.3 |
| 30 |
|
|
|
10.3767 |
1.8 |
3.218 |
6.3 |
0.2393 |
1.2 |
0.95 |
1383.0 |
28.0 |
1462.0 |
92.0 |
1555.0 |
28.0 |
1555.0 |
28.0 |
94.6 |
| 31 |
|
|
|
11.0035 |
1.8 |
2.882 |
6.2 |
0.229 |
1.0 |
0.75 |
1329.0 |
27.0 |
1377.0 |
86.0 |
1444.0 |
26.0 |
1444.0 |
26.0 |
96.5 |
| 32 |
|
|
|
10.6406 |
1.9 |
3.28 |
6.2 |
0.2511 |
1.0 |
0.68 |
1444.0 |
29.0 |
1476.0 |
92.0 |
1508.0 |
28.0 |
1508.0 |
28.0 |
97.8 |
| 33 |
|
|
|
11.3766 |
2.1 |
2.931 |
6.3 |
0.24 |
1.2 |
0.42 |
1387.0 |
28.0 |
1390.0 |
88.0 |
1380.0 |
29.0 |
1380.0 |
29.0 |
99.8 |
| 34 |
|
|
|
9.5311 |
1.8 |
3.905 |
6.2 |
0.2696 |
1.2 |
0.96 |
1539.0 |
31.0 |
1615.0 |
101.0 |
1713.0 |
31.0 |
1713.0 |
31.0 |
95.3 |
| 35 |
|
|
|
10.016 |
1.8 |
3.785 |
6.2 |
0.2749 |
1.1 |
0.90 |
1566.0 |
31.0 |
1590.0 |
99.0 |
1621.0 |
30.0 |
1621.0 |
30.0 |
98.5 |
| 36 |
|
|
|
9.4144 |
1.8 |
3.858 |
6.2 |
0.2631 |
1.0 |
0.72 |
1506.0 |
30.0 |
1605.0 |
100.0 |
1736.0 |
32.0 |
1736.0 |
32.0 |
93.8 |
| 37 |
|
|
|
9.9187 |
1.9 |
3.85 |
6.2 |
0.2789 |
1.1 |
0.72 |
1586.0 |
32.0 |
1603.0 |
100.0 |
1639.0 |
31.0 |
1639.0 |
31.0 |
98.9 |
filename:22844.xml
