This sample belongs to: Sarah George
Aliquot Name: 18ASN02
IGSN:
Stratigraphic Formation Name:
Stratigraphic Age:
Rock Type: igneous
Mineral: Zircon
Latitude: -130.086443
Longitude: 57.826197
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. |
| -18ASN02 Spot 28 |
9929 |
30122 |
0.8 |
18.9717 |
0.8 |
0.195 |
1.8 |
0.0268 |
1.6 |
0.90 |
170.7 |
2.7 |
180.9 |
3.0 |
315.3 |
18.0 |
170.7 |
2.7 |
94.4 |
| -18ASN02 Spot 26 |
1283 |
22403 |
1.7 |
19.6401 |
1.0 |
0.1892 |
1.8 |
0.027 |
1.4 |
0.82 |
171.5 |
2.4 |
176.0 |
2.8 |
236.0 |
22.9 |
171.5 |
2.4 |
97.5 |
| -18ASN02 Spot 6 r3 |
9863 |
512890 |
2.5 |
20.0223 |
0.7 |
0.1914 |
1.4 |
0.0278 |
1.2 |
0.86 |
176.8 |
2.1 |
177.9 |
2.3 |
191.4 |
16.8 |
176.8 |
2.1 |
99.4 |
| -18ASN02 Spot 21 |
4766 |
3113323 |
1.5 |
19.7737 |
0.9 |
0.1942 |
1.7 |
0.0279 |
1.4 |
0.84 |
177.2 |
2.4 |
180.2 |
2.7 |
220.4 |
20.8 |
177.2 |
2.4 |
98.3 |
| -18ASN02 Spot 23 |
529 |
14344 |
2.1 |
19.9212 |
1.1 |
0.194 |
1.9 |
0.028 |
1.5 |
0.80 |
178.2 |
2.7 |
180.0 |
3.1 |
203.2 |
26.0 |
178.2 |
2.7 |
99.0 |
| -18ASN02 Spot 3 c2 |
751 |
649859 |
1.7 |
19.8761 |
1.4 |
0.1968 |
2.1 |
0.0284 |
1.6 |
0.77 |
180.4 |
2.9 |
182.4 |
3.5 |
208.4 |
31.3 |
180.4 |
2.9 |
98.9 |
| -18ASN02 Spot 32 |
919 |
161253 |
2.2 |
20.0698 |
1.0 |
0.1949 |
1.7 |
0.0284 |
1.4 |
0.81 |
180.4 |
2.4 |
180.8 |
2.8 |
185.9 |
23.0 |
180.4 |
2.4 |
99.8 |
| -18ASN02 Spot 16 |
706 |
52841 |
1.5 |
19.8849 |
1.2 |
0.197 |
2.2 |
0.0284 |
1.8 |
0.82 |
180.6 |
3.1 |
182.5 |
3.6 |
207.4 |
28.9 |
180.6 |
3.1 |
99.0 |
| -18ASN02 Spot 17 |
3408 |
58011 |
1.8 |
20.2381 |
0.8 |
0.1935 |
1.7 |
0.0284 |
1.4 |
0.86 |
180.6 |
2.5 |
179.6 |
2.7 |
166.4 |
19.7 |
180.6 |
2.5 |
100.6 |
| -18ASN02 Spot 19 |
4799 |
716112 |
1.5 |
19.7813 |
0.8 |
0.1988 |
1.5 |
0.0285 |
1.3 |
0.85 |
181.3 |
2.4 |
184.1 |
2.6 |
219.5 |
18.6 |
181.3 |
2.4 |
98.5 |
| -18ASN02 Spot 14 |
1501 |
59600 |
1.6 |
19.8828 |
1.1 |
0.1991 |
2.0 |
0.0287 |
1.6 |
0.82 |
182.6 |
2.9 |
184.4 |
3.3 |
207.7 |
26.2 |
182.6 |
2.9 |
99.0 |
| -18ASN02 Spot 35 |
1027 |
64473 |
1.9 |
19.929 |
1.0 |
0.1991 |
1.6 |
0.0288 |
1.2 |
0.79 |
183.0 |
2.2 |
184.4 |
2.6 |
202.2 |
22.2 |
183.0 |
2.2 |
99.2 |
| -18ASN02 Spot 9 c5 |
416 |
37461 |
3.7 |
19.4025 |
1.3 |
0.2046 |
1.9 |
0.0288 |
1.4 |
0.72 |
183.1 |
2.5 |
189.0 |
3.3 |
264.0 |
30.2 |
183.1 |
2.5 |
96.9 |
| -18ASN02 Spot 20 |
1641 |
2629164 |
3.1 |
19.7978 |
1.2 |
0.2007 |
2.1 |
0.0288 |
1.8 |
0.84 |
183.2 |
3.2 |
185.7 |
3.6 |
217.5 |
26.8 |
183.2 |
3.2 |
98.7 |
| -18ASN02 Spot 29 |
515 |
14957 |
2.7 |
20.0855 |
1.3 |
0.1981 |
2.1 |
0.0289 |
1.7 |
0.81 |
183.5 |
3.2 |
183.5 |
3.6 |
184.0 |
29.2 |
183.5 |
3.2 |
100.0 |
| -18ASN02 Spot 15 r |
963 |
60026 |
2.3 |
19.8928 |
1.2 |
0.2003 |
2.0 |
0.0289 |
1.5 |
0.79 |
183.7 |
2.8 |
185.3 |
3.3 |
206.5 |
28.1 |
183.7 |
2.8 |
99.1 |
| -18ASN02 Spot 24 |
1361 |
98671 |
2.0 |
20.271 |
1.2 |
0.1967 |
1.9 |
0.0289 |
1.4 |
0.74 |
183.8 |
2.5 |
182.3 |
3.1 |
162.6 |
29.1 |
183.8 |
2.5 |
100.8 |
| -18ASN02 Spot 1 c1 |
1139 |
136771 |
0.9 |
20.0945 |
1.1 |
0.1985 |
1.7 |
0.0289 |
1.3 |
0.77 |
184.0 |
2.4 |
183.9 |
2.9 |
183.0 |
25.5 |
184.0 |
2.4 |
100.0 |
| -18ASN02 Spot 31 |
1346 |
72831 |
1.8 |
19.9821 |
0.8 |
0.1998 |
1.7 |
0.029 |
1.5 |
0.87 |
184.1 |
2.6 |
184.9 |
2.8 |
196.1 |
19.2 |
184.1 |
2.6 |
99.5 |
| -18ASN02 Spot 7 c4 |
1719 |
35237 |
2.2 |
19.8594 |
0.8 |
0.2016 |
1.6 |
0.029 |
1.3 |
0.85 |
184.6 |
2.4 |
186.5 |
2.7 |
210.4 |
19.0 |
184.6 |
2.4 |
99.0 |
| -18ASN02 Spot 30 |
2541 |
321909 |
1.4 |
19.8441 |
0.9 |
0.2019 |
1.6 |
0.0291 |
1.3 |
0.83 |
184.7 |
2.5 |
186.7 |
2.8 |
212.1 |
21.3 |
184.7 |
2.5 |
98.9 |
| -18ASN02 Spot 4 r2 |
2232 |
55308 |
2.3 |
20.5076 |
1.0 |
0.1956 |
1.7 |
0.0291 |
1.4 |
0.80 |
185.0 |
2.5 |
181.4 |
2.9 |
135.4 |
24.2 |
185.0 |
2.5 |
102.0 |
| -18ASN02 Spot 2 r1 |
638 |
73962 |
3.1 |
20.3713 |
1.1 |
0.1971 |
1.7 |
0.0291 |
1.3 |
0.77 |
185.2 |
2.3 |
182.7 |
2.8 |
151.0 |
24.7 |
185.2 |
2.3 |
101.3 |
| -18ASN02 Spot 12 |
2692 |
182431 |
1.7 |
20.0737 |
1.2 |
0.2013 |
1.7 |
0.0293 |
1.2 |
0.69 |
186.3 |
2.2 |
186.2 |
2.9 |
185.4 |
28.8 |
186.3 |
2.2 |
100.0 |
| -18ASN02 Spot 18 |
778 |
15373 |
2.1 |
20.519 |
1.6 |
0.1973 |
2.1 |
0.0294 |
1.3 |
0.65 |
186.6 |
2.5 |
182.8 |
3.5 |
134.1 |
37.1 |
186.6 |
2.5 |
102.1 |
| -18ASN02 Spot 13 |
694 |
42960 |
2.7 |
19.5784 |
1.2 |
0.2083 |
1.8 |
0.0296 |
1.3 |
0.75 |
187.9 |
2.5 |
192.1 |
3.1 |
243.3 |
27.5 |
187.9 |
2.5 |
97.8 |
| -18ASN02 Spot 5 c3 |
882 |
45543 |
2.4 |
19.9835 |
1.2 |
0.204 |
1.7 |
0.0296 |
1.2 |
0.71 |
187.9 |
2.2 |
188.5 |
2.8 |
195.9 |
27.2 |
187.9 |
2.2 |
99.7 |
| -18ASN02 Spot 22 |
744 |
40489 |
1.8 |
20.517 |
1.4 |
0.1989 |
2.1 |
0.0296 |
1.5 |
0.73 |
188.1 |
2.8 |
184.2 |
3.5 |
134.3 |
33.1 |
188.1 |
2.8 |
102.1 |
| -18ASN02 Spot 33 |
553 |
16443 |
2.9 |
20.1915 |
1.3 |
0.2024 |
2.0 |
0.0296 |
1.5 |
0.75 |
188.4 |
2.7 |
187.1 |
3.3 |
171.8 |
30.0 |
188.4 |
2.7 |
100.7 |
| -18ASN02 Spot 25 |
615 |
48759 |
2.9 |
19.7915 |
1.2 |
0.2082 |
1.7 |
0.0299 |
1.3 |
0.74 |
189.9 |
2.4 |
192.0 |
3.0 |
218.3 |
27.2 |
189.9 |
2.4 |
98.9 |
| -18ASN02 Spot 34 |
845 |
97945 |
2.3 |
20.2024 |
1.1 |
0.2046 |
1.8 |
0.03 |
1.4 |
0.79 |
190.5 |
2.7 |
189.0 |
3.1 |
170.5 |
26.1 |
190.5 |
2.7 |
100.8 |
| -18ASN02 Spot 10 r5 |
702 |
9990 |
3.7 |
20.686 |
1.4 |
0.2007 |
1.7 |
0.0301 |
1.0 |
0.58 |
191.3 |
1.9 |
185.7 |
2.9 |
115.0 |
33.1 |
191.3 |
1.9 |
103.0 |
| -18ASN02 Spot 8 r4 |
528 |
20684 |
4.0 |
20.5604 |
1.3 |
0.2021 |
2.0 |
0.0301 |
1.5 |
0.74 |
191.5 |
2.7 |
186.9 |
3.3 |
129.4 |
30.7 |
191.5 |
2.7 |
102.5 |
| -18ASN02 Spot 27 |
1981 |
37572 |
1.8 |
20.0464 |
1.1 |
0.2073 |
1.7 |
0.0302 |
1.3 |
0.76 |
191.5 |
2.5 |
191.3 |
3.0 |
188.6 |
25.9 |
191.5 |
2.5 |
100.1 |
| -18ASN02 Spot 11 |
753 |
59667 |
1.6 |
20.1107 |
1.5 |
0.2069 |
2.0 |
0.0302 |
1.3 |
0.67 |
191.7 |
2.5 |
190.9 |
3.5 |
181.1 |
34.3 |
191.7 |
2.5 |
100.4 |
filename:20866.xml
