This sample belongs to: Sarah George
Aliquot Name: 18AOD04
IGSN:
Stratigraphic Formation Name:
Stratigraphic Age:
Rock Type: Sandstone
Mineral: Zircon
Latitude: -129.53069
Longitude: 56.67316
Internal Uncertainty Level: one sigma
External Uncertainty 206/238 (% two sigma): 0.8
External Uncertainty 206/207 (% two sigma): 0.8
Analysis Purpose:
Laboratory Name: Arizona LaserChron Center
Analyst Name: Daniel Alberts
Aliquot Reference:
Aliquot Instrumental Method: LA-ICPMS
Aliquot Instrumental Reference: Gehrels, G.E., Valencia, V., Ruiz, J., (2008), Enhanced precision, accuracy, efficiency, and spatial resolution of U-Pb ages by laser ablation-multicollector-inductively coupled plasma-mass spectrometry: Geochemistry, Geophysics, Geosystems, v. 9, Q03017, doi:10.1029/2007GC001805.
Aliquot Instrumental Reference:
| 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. |
| -Spot 13 |
309 |
5452 |
2.3 |
21.0156 |
1.9 |
0.1625 |
2.4 |
0.0248 |
1.5 |
0.62 |
157.7 |
2.3 |
152.8 |
3.4 |
77.6 |
44.6 |
157.7 |
2.3 |
103.2 |
| -Spot 51 |
147 |
5043 |
3.4 |
21.2151 |
2.2 |
0.161 |
2.8 |
0.0248 |
1.8 |
0.63 |
157.9 |
2.8 |
151.6 |
4.0 |
55.1 |
52.8 |
157.9 |
2.8 |
104.1 |
| -Spot 108 |
179 |
16624 |
3.0 |
20.2115 |
2.0 |
0.1721 |
2.4 |
0.0252 |
1.4 |
0.57 |
160.7 |
2.2 |
161.3 |
3.6 |
169.4 |
46.5 |
160.7 |
2.2 |
99.7 |
| -Spot 78 |
238 |
300467 |
3.5 |
19.6076 |
1.8 |
0.2218 |
2.2 |
0.0316 |
1.3 |
0.58 |
200.3 |
2.5 |
203.4 |
4.0 |
239.9 |
41.2 |
200.3 |
2.5 |
98.5 |
| -Spot 1 |
138 |
10651 |
3.9 |
19.5985 |
2.3 |
0.2339 |
2.9 |
0.0333 |
1.8 |
0.61 |
210.9 |
3.7 |
213.4 |
5.5 |
240.9 |
52.2 |
210.9 |
3.7 |
98.8 |
| -Spot 56 |
401 |
72091 |
3.3 |
19.9954 |
1.4 |
0.2302 |
2.0 |
0.0334 |
1.3 |
0.68 |
211.8 |
2.8 |
210.3 |
3.7 |
194.5 |
33.3 |
211.8 |
2.8 |
100.7 |
| -Spot 10 |
753 |
9638 |
2.7 |
20.2885 |
1.1 |
0.2341 |
2.1 |
0.0345 |
1.8 |
0.87 |
218.4 |
3.9 |
213.6 |
4.0 |
160.6 |
24.6 |
218.4 |
3.9 |
102.3 |
| -Spot 61 |
159 |
3131 |
4.1 |
21.0944 |
5.3 |
0.2286 |
5.6 |
0.035 |
1.7 |
0.30 |
221.7 |
3.6 |
209.1 |
10.6 |
68.7 |
127.2 |
221.7 |
3.6 |
106.1 |
| -Spot 21 |
205 |
13401 |
5.2 |
19.4122 |
1.5 |
0.2488 |
2.1 |
0.0351 |
1.5 |
0.69 |
222.1 |
3.2 |
225.6 |
4.3 |
262.9 |
35.2 |
222.1 |
3.2 |
98.4 |
| -Spot 2 |
882 |
32340 |
19.3 |
19.6955 |
1.4 |
0.2454 |
2.3 |
0.0351 |
1.8 |
0.79 |
222.2 |
3.9 |
222.8 |
4.5 |
229.5 |
32.2 |
222.2 |
3.9 |
99.7 |
| -Spot 37 |
180 |
16134 |
6.2 |
20.0386 |
1.8 |
0.2429 |
2.3 |
0.0353 |
1.3 |
0.59 |
223.7 |
2.9 |
220.8 |
4.5 |
189.5 |
42.4 |
223.7 |
2.9 |
101.3 |
| -Spot 27 |
1087 |
42609 |
2.7 |
19.5166 |
1.1 |
0.2502 |
1.7 |
0.0354 |
1.3 |
0.75 |
224.4 |
2.9 |
226.7 |
3.5 |
250.5 |
26.2 |
224.4 |
2.9 |
99.0 |
| -Spot 65 |
1333 |
54063 |
2.4 |
19.6699 |
1.3 |
0.249 |
2.1 |
0.0355 |
1.7 |
0.80 |
225.1 |
3.7 |
225.8 |
4.3 |
232.5 |
29.2 |
225.1 |
3.7 |
99.7 |
| -Spot 62 |
166 |
3121 |
5.1 |
21.6297 |
2.2 |
0.2265 |
2.8 |
0.0355 |
1.8 |
0.63 |
225.2 |
3.9 |
207.3 |
5.3 |
8.7 |
52.5 |
225.2 |
3.9 |
108.6 |
| -Spot 19 |
3463 |
1647111 |
1.7 |
20.0321 |
0.8 |
0.2448 |
1.6 |
0.0356 |
1.4 |
0.86 |
225.4 |
3.1 |
222.3 |
3.2 |
190.3 |
18.8 |
225.4 |
3.1 |
101.4 |
| -Spot 96 |
406 |
19323 |
3.0 |
19.7538 |
1.3 |
0.2487 |
2.0 |
0.0356 |
1.5 |
0.77 |
225.8 |
3.4 |
225.5 |
4.0 |
222.7 |
29.7 |
225.8 |
3.4 |
100.1 |
| -Spot 7 |
1197 |
140882 |
2.4 |
19.4423 |
1.1 |
0.2537 |
1.8 |
0.0358 |
1.4 |
0.79 |
226.7 |
3.1 |
229.6 |
3.7 |
259.3 |
24.8 |
226.7 |
3.1 |
98.7 |
| -Spot 18 |
647 |
45162 |
2.7 |
19.3233 |
1.4 |
0.2557 |
2.1 |
0.0358 |
1.6 |
0.76 |
227.0 |
3.6 |
231.2 |
4.4 |
273.4 |
31.9 |
227.0 |
3.6 |
98.2 |
| -Spot 79 |
775 |
49271 |
2.4 |
19.8603 |
1.3 |
0.2491 |
2.1 |
0.0359 |
1.7 |
0.79 |
227.4 |
3.7 |
225.9 |
4.2 |
210.2 |
30.0 |
227.4 |
3.7 |
100.7 |
| -Spot 5 |
3776 |
222776 |
1.7 |
19.6811 |
1.9 |
0.2536 |
3.4 |
0.0362 |
2.8 |
0.83 |
229.3 |
6.3 |
229.5 |
6.9 |
231.2 |
44.1 |
229.3 |
6.3 |
99.9 |
| -Spot 11 |
1140 |
158167 |
1.7 |
19.7459 |
1.2 |
0.2533 |
1.9 |
0.0363 |
1.5 |
0.78 |
229.8 |
3.3 |
229.2 |
3.9 |
223.6 |
27.4 |
229.8 |
3.3 |
100.2 |
| -Spot 26 |
227 |
47324 |
1.5 |
19.087 |
1.5 |
0.264 |
2.1 |
0.0366 |
1.5 |
0.71 |
231.5 |
3.3 |
237.9 |
4.4 |
301.6 |
33.6 |
231.5 |
3.3 |
97.3 |
| -Spot 110 |
63 |
3613 |
4.1 |
20.4145 |
2.5 |
0.2651 |
3.1 |
0.0393 |
1.8 |
0.58 |
248.3 |
4.4 |
238.8 |
6.6 |
146.1 |
59.6 |
248.3 |
4.4 |
104.0 |
| -Spot 55 |
39 |
1627 |
2.2 |
21.2957 |
4.5 |
0.2992 |
4.9 |
0.0462 |
2.0 |
0.41 |
291.4 |
5.7 |
265.8 |
11.5 |
46.0 |
106.7 |
291.4 |
5.7 |
109.6 |
| -Spot 28 |
64 |
3223 |
2.0 |
20.2286 |
2.5 |
0.3194 |
3.0 |
0.0469 |
1.6 |
0.54 |
295.4 |
4.6 |
281.5 |
7.4 |
167.5 |
58.9 |
295.4 |
4.6 |
104.9 |
| -Spot 24 |
37 |
1372 |
1.5 |
22.0387 |
4.1 |
0.2947 |
4.6 |
0.0471 |
2.0 |
0.43 |
296.8 |
5.7 |
262.2 |
10.6 |
NA |
NA |
296.8 |
5.7 |
113.2 |
| -Spot 54 |
48 |
42334 |
1.9 |
18.1922 |
2.1 |
0.3595 |
2.6 |
0.0475 |
1.5 |
0.59 |
298.9 |
4.5 |
311.8 |
7.0 |
409.9 |
47.5 |
298.9 |
4.5 |
95.8 |
| -Spot 52 |
57 |
22372 |
1.7 |
18.8219 |
1.7 |
0.3502 |
2.5 |
0.0478 |
1.8 |
0.71 |
301.1 |
5.2 |
304.8 |
6.5 |
333.3 |
39.5 |
301.1 |
5.2 |
98.8 |
| -Spot 76 |
73 |
12515 |
2.0 |
18.9627 |
2.3 |
0.3487 |
2.8 |
0.048 |
1.6 |
0.56 |
302.1 |
4.6 |
303.7 |
7.3 |
316.4 |
52.0 |
302.1 |
4.6 |
99.5 |
| -Spot 120 |
16 |
1187 |
3.0 |
22.0184 |
10.3 |
0.3007 |
10.5 |
0.048 |
1.8 |
0.17 |
302.4 |
5.3 |
266.9 |
24.7 |
NA |
NA |
302.4 |
5.3 |
113.3 |
| -Spot 80 |
171 |
6001 |
2.5 |
19.2505 |
1.8 |
0.3454 |
2.4 |
0.0482 |
1.6 |
0.67 |
303.8 |
4.9 |
301.3 |
6.4 |
282.1 |
41.5 |
303.8 |
4.9 |
100.8 |
| -Spot 118 |
36 |
7462 |
1.9 |
18.3224 |
3.3 |
0.3682 |
3.9 |
0.049 |
2.0 |
0.52 |
308.1 |
6.1 |
318.3 |
10.6 |
394.0 |
74.8 |
308.1 |
6.1 |
96.8 |
| -Spot 16 |
415 |
49706 |
3.3 |
18.8822 |
1.2 |
0.3592 |
2.0 |
0.0492 |
1.6 |
0.80 |
309.7 |
5.0 |
311.6 |
5.5 |
326.1 |
27.6 |
309.7 |
5.0 |
99.4 |
| -Spot 14 |
36 |
3246 |
2.1 |
19.8927 |
3.9 |
0.3414 |
4.1 |
0.0493 |
1.4 |
0.34 |
310.1 |
4.3 |
298.3 |
10.7 |
206.5 |
90.4 |
310.1 |
4.3 |
104.0 |
| -Spot 109 |
141 |
19403 |
2.0 |
18.8825 |
2.1 |
0.363 |
2.5 |
0.0497 |
1.5 |
0.58 |
312.9 |
4.4 |
314.4 |
6.8 |
326.0 |
46.8 |
312.9 |
4.4 |
99.5 |
| -Spot 6 |
412 |
72996 |
3.7 |
18.6585 |
1.3 |
0.3675 |
2.1 |
0.0498 |
1.6 |
0.79 |
313.0 |
5.0 |
317.8 |
5.6 |
353.1 |
28.5 |
313.0 |
5.0 |
98.5 |
| -Spot 25 |
318 |
16933 |
1.7 |
18.8637 |
1.4 |
0.3645 |
2.1 |
0.0499 |
1.6 |
0.76 |
313.9 |
4.8 |
315.6 |
5.6 |
328.3 |
30.8 |
313.9 |
4.8 |
99.5 |
| -Spot 64 |
361 |
15654 |
2.4 |
19.2036 |
1.3 |
0.3654 |
2.1 |
0.0509 |
1.6 |
0.77 |
320.1 |
5.0 |
316.2 |
5.6 |
287.6 |
30.1 |
320.1 |
5.0 |
101.2 |
| -Spot 4 |
492 |
31754 |
2.6 |
18.774 |
0.9 |
0.3739 |
1.8 |
0.0509 |
1.6 |
0.87 |
320.2 |
4.9 |
322.5 |
5.0 |
339.1 |
20.3 |
320.2 |
4.9 |
99.3 |
| -Spot 63 |
225 |
18479 |
3.4 |
18.595 |
1.4 |
0.38 |
2.0 |
0.0513 |
1.4 |
0.71 |
322.3 |
4.4 |
327.0 |
5.6 |
360.8 |
32.0 |
322.3 |
4.4 |
98.6 |
| -Spot 17 |
1271 |
108482 |
3.6 |
18.8224 |
0.9 |
0.3762 |
1.7 |
0.0514 |
1.5 |
0.85 |
323.0 |
4.6 |
324.2 |
4.7 |
333.3 |
20.2 |
323.0 |
4.6 |
99.6 |
| -Spot 53 |
885 |
72661 |
1.5 |
19.1762 |
1.0 |
0.3723 |
1.9 |
0.0518 |
1.6 |
0.86 |
325.5 |
5.1 |
321.3 |
5.2 |
290.9 |
22.1 |
325.5 |
5.1 |
101.3 |
| -Spot 59 |
175 |
12065 |
2.6 |
19.0092 |
1.8 |
0.3776 |
2.3 |
0.0521 |
1.4 |
0.63 |
327.3 |
4.6 |
325.3 |
6.4 |
310.9 |
40.7 |
327.3 |
4.6 |
100.6 |
| -Spot 60 |
367 |
96907 |
2.4 |
18.4889 |
1.1 |
0.3936 |
1.8 |
0.0528 |
1.4 |
0.79 |
331.7 |
4.5 |
337.0 |
5.0 |
373.7 |
24.2 |
331.7 |
4.5 |
98.4 |
| -Spot 3 |
303 |
114606 |
3.0 |
5.9436 |
1.0 |
11.0015 |
1.7 |
0.4745 |
1.4 |
0.82 |
2503.1 |
28.6 |
2523.3 |
15.6 |
2539.5 |
16.1 |
2539.5 |
16.1 |
98.6 |
| -Spot 8 |
199 |
135082 |
2.1 |
5.807 |
0.8 |
9.9696 |
1.9 |
0.4201 |
1.8 |
0.90 |
2260.8 |
33.4 |
2432.0 |
17.9 |
2578.4 |
14.1 |
2578.4 |
14.1 |
87.7 |
| -Spot 77 |
47 |
21327 |
1.0 |
5.2977 |
0.9 |
14.0035 |
1.7 |
0.5383 |
1.4 |
0.84 |
2776.3 |
32.0 |
2749.9 |
16.0 |
2730.7 |
15.0 |
2730.7 |
15.0 |
101.7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| -Spot 12 |
1488 |
720591 |
6.4 |
10.7072 |
1.7 |
1.0506 |
3.1 |
0.0816 |
2.5 |
0.83 |
505.8 |
12.4 |
729.2 |
16.1 |
1495.1 |
32.9 |
1495.1 |
32.9 |
33.8 |
filename:20869.xml
