This sample belongs to: Laura Cristina Calderón Díaz

Sample Details
Aliquot Name: 21148ME
IGSN: IELCD001D
Stratigraphic Formation Name: Barzalosa Fm
Stratigraphic Age:
Rock Type: Sandstone
Mineral: Zircon
Latitude: 4.1938
Longitude: -74.6744
Internal Uncertainty Level:
External Uncertainty 206/238 (% two sigma): 1.1
External Uncertainty 206/207 (% two sigma): 1.1
Analysis Purpose:
Laboratory Name: Radiogenic Isotopic and Geochronology Lab (RIGL) at WSU
Analyst Name: Victor Valencia
Aliquot Reference: Plesovice zircon used as primary standard, FC-1, 91500, Temora and Fish Canyon Tuff analyzed as secondary standards.
Aliquot Instrumental Method:
Aliquot Instrumental Reference:
Aliquot Instrumental Reference: IELCD001D


Spot(s)
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.
21148ME_1 111 12800 3.9 13.8696 1.8 1.5575 1.7 0.1567 1.0 0.25 938.6 8.8 954.0 11.0 972.0 37.0 938.6 8.8 1.0
21148ME_2 85 14700 1.2 13.6986 1.8 1.6713 1.8 0.1661 1.1 0.28 990.7 10.5 998.3 12.0 999.0 38.0 990.7 10.5 1.0
21148ME_3 187 29000 2.6 11.5207 1.5 2.6667 1.3 0.2229 0.9 0.20 1297.3 12.0 1320.1 9.9 1347.0 29.0 1347.0 29.0 1.0
21148ME_4 72 13400 1.6 11.0865 2.4 2.6208 2.4 0.2108 1.2 0.21 1233.2 14.5 1307.3 18.0 1424.0 46.0 1424.0 46.0 0.9
21148ME_5 101 1970 3.0 17.452 5.8 0.1763 5.2 0.0223 2.4 0.04 142.3 3.4 165.0 8.0 390.0 120.0 142.3 3.4 0.4
21148ME_6 132 2060 1.2 19.1205 4.6 0.1666 4.4 0.0231 1.6 0.09 147.3 2.4 156.5 6.5 246.0 95.0 147.3 2.4 0.6
21148ME_7 165 7400 1.3 18.622 3.2 0.3132 3.1 0.0423 1.3 0.20 267.2 3.5 276.8 7.5 316.0 67.0 267.2 3.5 0.8
21148ME_8 45 4700 4.1 16.0772 4.2 0.8717 4.0 0.1017 1.7 0.15 624.3 10.4 636.9 19.0 597.0 88.0 624.3 10.4 1.0
21148ME_9 279 52000 2.2 11.7233 1.1 2.6503 1.2 0.2254 0.7 0.42 1310.6 9.2 1315.5 8.7 1316.0 21.0 1316.0 21.0 1.0
21148ME_10 128 28800 0.9 10.582 1.3 3.3024 1.3 0.2536 0.9 0.40 1456.8 12.5 1482.5 10.0 1512.0 24.0 1512.0 24.0 1.0
21148ME_11 120 38900 2.2 9.7561 1.2 4.147 1.4 0.2936 0.9 0.46 1659.3 15.4 1664.6 11.0 1662.0 22.0 1662.0 22.0 1.0
21148ME_12 98 19000 2.4 11.3636 1.5 2.8277 1.5 0.2332 0.9 0.24 1351.0 12.6 1363.7 11.0 1374.0 29.0 1374.0 29.0 1.0
21148ME_13 80 11500 3.6 11.0988 1.4 2.796 1.6 0.2252 1.0 0.44 1309.1 13.1 1355.3 12.0 1416.0 29.0 1416.0 29.0 0.9
21148ME_14 146 26600 2.4 11.0497 1.3 2.8868 1.5 0.2314 0.9 0.46 1342.1 12.0 1379.3 11.0 1429.0 25.0 1429.0 25.0 0.9
21148ME_15 322 52000 1.4 11.6986 1.0 2.6881 1.1 0.2282 0.8 0.47 1325.0 10.8 1326.0 7.8 1322.0 19.0 1322.0 19.0 1.0
21148ME_16 777 189000 2.8 11.8231 0.8 2.6897 0.9 0.2307 0.8 0.56 1338.4 10.8 1326.4 6.8 1304.0 16.0 1304.0 16.0 1.0
21148ME_17 114 50000 2.6 9.7087 1.3 4.2841 1.3 0.3018 1.1 0.41 1700.2 18.8 1691.3 11.0 1675.0 24.0 1675.0 24.0 1.0
21148ME_18 295 8900 2.2 19.1939 2.7 0.3124 2.8 0.0435 1.3 0.27 274.6 3.5 276.2 6.7 266.0 60.0 274.6 3.5 1.0
21148ME_19 49 12900 1.9 12.0482 2.2 2.596 2.2 0.2269 1.3 0.26 1318.5 17.3 1300.3 16.0 1254.0 44.0 1318.5 17.3 1.1
21148ME_20 144 33000 4.5 12.9702 1.4 2.0422 1.3 0.1922 1.0 0.18 1133.2 11.0 1130.4 9.1 1117.0 30.0 1133.2 11.0 1.0
21148ME_21 75 2190 1.5 19.3424 6.6 0.1635 5.9 0.0229 2.3 0.00 146.3 3.3 153.9 8.5 160.0 130.0 146.3 3.3 0.9
21148ME_22 225 32000 0.7 16.7785 1.8 0.8255 1.7 0.1005 1.2 0.29 617.4 7.2 611.5 7.8 578.0 40.0 617.4 7.2 1.1
21148ME_23 164 40000 1.1 14.4509 1.6 1.4581 1.5 0.1529 0.9 0.20 917.1 7.7 913.8 9.2 890.0 34.0 917.1 7.7 1.0
21148ME_24 778 145000 1.8 13.1544 0.9 1.937 0.9 0.1849 0.8 0.48 1093.6 8.1 1094.6 6.0 1091.0 17.0 1093.6 8.1 1.0
21148ME_25 597 114000 1.2 16.4123 1.2 0.8776 1.1 0.1045 0.8 0.31 640.8 5.1 640.1 5.4 627.0 27.0 640.8 5.1 1.0
21148ME_26 51 760 2.6 17.8571 13.4 0.069 12.9 0.0089 4.4 0.00 57.4 2.5 67.8 8.3 170.0 250.0 57.4 2.5 0.3
21148ME_27 152 46000 1.7 11.7371 1.2 2.6905 1.2 0.2291 0.9 0.41 1330.0 12.0 1326.7 9.0 1314.0 24.0 1314.0 24.0 1.0
21148ME_28 143 42000 2.0 11.8203 1.2 2.6714 1.1 0.2291 1.0 0.38 1329.9 13.1 1321.4 8.3 1301.0 23.0 1301.0 23.0 1.0
21148ME_29 398 123000 3.0 13.8889 1.1 1.66 1.0 0.1673 0.8 0.39 997.1 8.1 994.0 6.6 980.0 21.0 997.1 8.1 1.0
21148ME_30 139 57000 1.3 10.9769 1.3 3.1133 1.3 0.248 1.0 0.44 1428.0 13.7 1436.9 10.0 1443.0 24.0 1443.0 24.0 1.0
21148ME_31 125 53000 1.6 11.8624 1.4 2.6693 1.5 0.2298 1.0 0.41 1333.2 13.2 1320.8 11.0 1292.0 28.0 1292.0 28.0 1.0
21148ME_32 296 88000 3.3 14.0647 2.1 1.6454 2.7 0.1679 2.4 0.66 1000.6 23.2 988.4 17.0 951.0 44.0 1000.6 23.2 1.1
21148ME_33 389 5900 3.0 20.79 3.7 0.0913 3.8 0.0138 1.5 0.20 88.2 1.4 88.8 3.3 85.0 78.0 88.2 1.4 1.0
21148ME_34 80 5400 0.8 17.5747 6.0 0.3313 5.4 0.0422 1.8 0.01 266.8 4.9 290.7 14.0 420.0 130.0 266.8 4.9 0.6
21148ME_35 158 44000 1.5 10.627 1.6 3.3569 1.7 0.2588 1.2 0.43 1483.9 17.6 1495.3 13.0 1504.0 31.0 1504.0 31.0 1.0
21148ME_36 74 28000 1.7 10.7875 2.0 3.23 2.0 0.2528 1.7 0.37 1453.0 24.9 1465.3 15.0 1474.0 39.0 1474.0 39.0 1.0
21148ME_37 121 1860 1.6 20.3666 6.5 0.089 6.1 0.0131 2.2 0.01 84.2 1.9 86.6 5.0 100.0 130.0 84.2 1.9 0.8
21148ME_38 485 175000 1.2 11.8385 1.1 2.5639 1.0 0.2202 0.9 0.39 1283.2 11.4 1291.2 7.3 1298.0 21.0 1283.2 11.4 1.0
21148ME_39 196 3600 3.2 20.6612 5.8 0.0945 5.5 0.0142 2.1 0.07 90.6 1.9 91.7 4.9 70.0 110.0 90.6 1.9 1.3
21148ME_40 60 26700 1.5 11.7925 1.9 2.8175 2.0 0.2411 1.3 0.40 1392.3 18.3 1361.0 15.0 1295.0 38.0 1295.0 38.0 1.1
21148ME_41 251 7600 1.5 20.202 3.8 0.1642 3.7 0.0241 1.4 0.13 153.3 2.2 154.5 5.3 134.0 79.0 153.3 2.2 1.1
21148ME_42 168 49000 2.2 11.6822 1.4 2.55 1.6 0.2162 1.2 0.51 1261.5 14.3 1287.2 12.0 1320.0 27.0 1261.5 14.3 1.0
21148ME_43 166 51000 1.6 11.6959 1.4 2.7064 1.4 0.2297 1.0 0.32 1332.8 12.6 1331.0 10.0 1320.0 27.0 1320.0 27.0 1.0
21148ME_44 275 5700 1.9 20.0803 4.0 0.0866 4.0 0.0126 1.6 0.23 80.8 1.3 84.4 3.3 155.0 85.0 80.8 1.3 0.5
21148ME_45 144 32000 1.6 11.7096 1.4 2.724 1.4 0.2314 1.0 0.32 1342.0 12.6 1335.8 11.0 1315.0 28.0 1315.0 28.0 1.0
21148ME_46 331 202000 1.8 9.6731 0.8 4.4141 0.8 0.3098 0.8 0.52 1739.8 13.7 1716.0 6.8 1682.0 15.0 1682.0 15.0 1.0
21148ME_47 464 129000 2.8 10.4701 0.8 3.5228 0.8 0.2676 0.8 0.58 1528.7 12.4 1533.3 6.6 1535.0 15.0 1535.0 15.0 1.0
21148ME_48 77 22000 1.9 11.8343 1.7 2.6698 1.8 0.2293 1.0 0.37 1330.6 13.2 1321.0 13.0 1296.0 33.0 1296.0 33.0 1.0
21148ME_49 114 53000 1.2 9.5969 1.2 4.2741 1.2 0.2976 1.0 0.37 1679.5 16.5 1689.4 9.7 1696.0 23.0 1696.0 23.0 1.0
21148ME_50 92 24000 1.6 11.7925 1.7 2.6316 1.6 0.2252 1.0 0.13 1309.2 12.7 1310.3 11.0 1301.0 32.0 1301.0 32.0 1.0
21148ME_51 380 5500 1.7 20.9205 5.2 0.0608 4.9 0.0092 1.7 0.11 59.2 1.0 59.9 2.9 43.0 97.0 59.2 1.0 1.4
21148ME_52 95 22000 1.2 11.7786 1.5 2.6772 1.5 0.2288 1.0 0.26 1328.2 13.2 1323.0 12.0 1302.0 31.0 1302.0 31.0 1.0
21148ME_53 85 15800 1.9 14.1443 2.0 1.5048 1.9 0.1544 1.0 0.19 925.8 8.9 932.9 12.0 927.0 41.0 925.8 8.9 1.0
21148ME_54 411 102000 3.9 13.86 1.1 1.6621 1.1 0.1671 0.9 0.58 996.4 8.7 994.8 7.2 984.0 22.0 996.4 8.7 1.0
21148ME_55 143 4400 1.4 18.9394 6.4 0.182 5.5 0.025 2.3 0.00 159.3 3.6 169.9 8.9 240.0 130.0 159.3 3.6 0.7
21148ME_56 100 41000 1.6 10.5932 1.5 3.2288 1.4 0.2482 1.0 0.28 1429.1 13.7 1465.0 11.0 1509.0 26.0 1509.0 26.0 0.9
21148ME_57 452 98000 2.4 13.6949 1.1 1.6759 1.1 0.1665 0.8 0.36 993.0 8.1 1000.0 6.7 1011.0 21.0 993.0 8.1 1.0
21148ME_58 736 230000 1.8 10.395 1.0 3.6354 1.3 0.2742 1.1 0.55 1562.1 17.5 1558.3 10.0 1547.0 20.0 1547.0 20.0 1.0
21148ME_59 88 39000 2.5 10.5708 1.5 3.4983 1.7 0.2683 1.3 0.56 1532.3 19.3 1527.8 14.0 1515.0 28.0 1515.0 28.0 1.0
21148ME_60 198 10300 1.0 19.4175 2.7 0.3056 2.6 0.0431 1.2 0.01 271.7 3.3 270.9 6.2 240.0 61.0 271.7 3.3 1.1
21148ME_61 85 28000 1.1 10.7991 1.5 3.2772 1.4 0.2568 1.0 0.30 1473.4 14.3 1476.5 11.0 1473.0 28.0 1473.0 28.0 1.0
21148ME_62 87 46000 1.4 10.582 1.5 3.3535 1.4 0.2575 0.9 0.26 1477.0 13.2 1494.5 11.0 1506.0 29.0 1506.0 29.0 1.0
21148ME_63 607 24500 1.0 19.9203 2.4 0.1744 2.5 0.0252 1.1 0.20 160.5 1.7 163.3 3.7 194.0 53.0 160.5 1.7 0.8
21148ME_64 111 36000 1.1 10.4493 1.4 3.347 1.6 0.2538 1.3 0.48 1457.9 18.6 1493.0 13.0 1533.0 26.0 1533.0 26.0 1.0
21148ME_65 118 23000 2.1 10.2669 2.9 2.8539 2.8 0.2126 1.0 0.06 1242.7 13.1 1370.7 20.0 1553.0 52.0 1553.0 52.0 0.8
21148ME_66 286 85000 2.1 12.4425 1.1 2.2537 1.1 0.2035 0.9 0.43 1193.9 10.3 1198.7 7.7 1203.0 20.0 1193.9 10.3 1.0
21148ME_67 82 27000 1.1 10.8578 1.5 3.0577 1.6 0.2409 1.1 0.42 1391.4 15.3 1423.0 12.0 1462.0 30.0 1462.0 30.0 1.0
21148ME_68 31 7300 1.3 10.5932 2.1 3.4432 2.2 0.2647 1.4 0.39 1513.6 21.7 1515.2 17.0 1505.0 41.0 1505.0 41.0 1.0
21148ME_69 261 48000 1.1 14.2248 1.6 1.48 1.4 0.1528 1.0 0.22 916.4 8.8 922.8 8.4 927.0 32.0 916.4 8.8 1.0
21148ME_70 146 28000 2.2 11.0497 1.8 2.8707 1.9 0.2302 1.0 0.47 1335.4 13.8 1375.1 15.0 1430.0 34.0 1430.0 34.0 0.9
21148ME_71 131 49000 2.1 11.6822 1.3 2.6016 1.6 0.2205 1.0 0.58 1284.7 12.6 1301.9 12.0 1321.0 26.0 1321.0 26.0 1.0
21148ME_72 77 19900 1.0 11.8483 1.7 2.5074 1.7 0.2156 1.2 0.31 1258.4 14.9 1275.0 12.0 1293.0 35.0 1258.4 14.9 1.0
21148ME_73 385 6500 1.8 20.9205 3.6 0.0863 3.5 0.0131 1.2 0.12 83.9 1.0 84.1 2.8 78.0 74.0 83.9 1.0 1.1
21148ME_74 1159 20200 1.3 20.8333 2.5 0.0715 2.2 0.0108 1.2 0.04 69.3 0.8 70.1 1.6 96.0 53.0 69.3 0.8 0.7
21148ME_75 112 42000 1.1 10.6952 1.4 3.2008 1.4 0.2484 1.1 0.44 1430.2 15.3 1458.2 11.0 1492.0 26.0 1492.0 26.0 1.0
21148ME_76 141 24000 2.7 13.9082 1.7 1.533 1.5 0.1547 1.0 0.19 927.3 8.8 944.3 9.4 973.0 33.0 927.3 8.8 1.0
21148ME_77 277 57000 3.2 14.0984 1.4 1.5408 1.2 0.1576 1.1 0.27 943.5 9.9 947.4 7.1 944.0 28.0 943.5 9.9 1.0
21148ME_78 40 11600 2.9 13.5318 2.3 1.7206 2.3 0.1689 1.5 0.35 1006.3 14.6 1016.9 15.0 1022.0 48.0 1006.3 14.6 1.0
21148ME_79 179 45000 1.9 11.6158 1.1 2.6591 1.2 0.2241 0.8 0.38 1303.6 10.9 1318.0 8.7 1334.0 22.0 1334.0 22.0 1.0
21148ME_80 332 107000 2.6 13.8562 1.1 1.5464 1.2 0.1555 0.8 0.48 931.6 7.0 949.7 7.6 985.0 22.0 931.6 7.0 0.9
21148ME_81 129 55000 2.1 11.8624 1.3 2.6555 1.4 0.2286 0.8 0.38 1327.0 10.9 1317.0 10.0 1290.0 27.0 1290.0 27.0 1.0
21148ME_82 56 11200 1.1 13.6054 2.3 1.6889 2.2 0.1667 1.3 0.20 994.1 12.9 1005.0 14.0 1006.0 49.0 994.1 12.9 1.0
21148ME_83 145 18400 0.8 17.2414 2.4 0.724 2.3 0.0906 1.0 0.13 558.9 5.8 553.3 10.0 498.0 55.0 558.9 5.8 1.1
21148ME_84 83 21600 1.3 13.5685 2.2 1.7207 1.9 0.1694 1.2 0.13 1008.8 12.3 1016.9 12.0 1015.0 44.0 1008.8 12.3 1.0
21148ME_85 291 18700 3.6 19.4932 2.3 0.2646 2.2 0.0374 1.3 0.17 236.8 3.0 238.5 4.7 245.0 51.0 236.8 3.0 1.0
21148ME_86 155 3270 1.7 20.284 6.1 0.0864 5.6 0.0127 1.9 0.00 81.4 1.6 84.2 4.5 80.0 120.0 81.4 1.6 1.0
21148ME_87 51 19500 1.2 11.919 2.7 2.5116 2.8 0.2172 1.9 0.32 1267.1 23.5 1276.2 22.0 1271.0 57.0 1267.1 23.5 1.0
21148ME_88 118 33000 1.7 11.8064 1.4 2.6729 1.5 0.229 0.9 0.36 1329.1 12.1 1321.8 11.0 1299.0 27.0 1299.0 27.0 1.0
21148ME_89 99 1930 1.4 17.9856 8.5 0.0871 7.7 0.0114 2.7 0.00 72.9 2.0 84.9 6.2 270.0 170.0 72.9 2.0 0.3
21148ME_90 69 30000 1.5 10.9769 2.0 3.2051 1.9 0.2553 1.1 0.26 1465.7 16.7 1459.3 15.0 1436.0 38.0 1436.0 38.0 1.0
21148ME_91 164 91000 0.8 10.101 1.1 3.8707 1.2 0.2837 0.9 0.44 1609.9 14.2 1608.6 9.5 1601.0 22.0 1601.0 22.0 1.0
21148ME_92 158 3800 2.2 20.4082 6.3 0.0924 5.7 0.0137 2.0 0.00 87.6 1.8 89.8 5.0 70.0 120.0 87.6 1.8 1.3
21148ME_93 101 47000 0.8 10.661 1.6 3.3874 1.6 0.262 1.2 0.44 1500.2 17.6 1502.4 12.0 1493.0 30.0 1493.0 30.0 1.0
21148ME_94 200 63000 1.5 12.6263 1.5 2.0894 1.4 0.1914 1.1 0.35 1129.1 12.1 1146.0 9.9 1172.0 28.0 1129.1 12.1 1.0
21148ME_95 117 50000 1.9 11.7233 1.5 2.6516 1.5 0.2256 1.2 0.41 1311.1 16.0 1315.9 11.0 1317.0 30.0 1317.0 30.0 1.0
21148ME_96 234 75000 1.7 11.7137 1.0 2.5804 1.1 0.2193 0.8 0.43 1278.3 9.7 1295.9 7.7 1323.0 20.0 1323.0 20.0 1.0
21148ME_97 399 163000 2.4 11.8064 1.9 2.7562 2.7 0.2361 2.5 0.64 1366.5 32.9 1344.6 20.0 1312.0 40.0 1312.0 40.0 1.0
21148ME_99 559 146000 1.9 11.722 0.8 2.6203 0.9 0.2229 0.8 0.31 1297.0 9.7 1307.1 6.4 1318.0 16.0 1318.0 16.0 1.0
21148ME_100 75 15000 1.9 14.2653 2.0 1.6194 2.1 0.1676 1.1 0.29 999.0 10.6 978.3 13.0 908.0 43.0 999.0 10.6 1.1
21148ME_101 165 33000 1.0 14.3885 1.6 1.421 1.5 0.1484 0.9 0.28 891.7 8.2 898.3 9.0 899.0 32.0 891.7 8.2 1.0
21148ME_102 80 27000 1.4 11.7647 2.4 2.6358 2.4 0.225 1.4 0.26 1308.3 17.8 1311.5 17.0 1296.0 47.0 1296.0 47.0 1.0
21148ME_103 91 37000 1.7 10.9409 1.3 3.2184 1.3 0.2555 1.0 0.37 1466.8 14.8 1462.5 10.0 1448.0 26.0 1448.0 26.0 1.0
21148ME_104 140 37000 2.0 14.1844 1.8 1.5414 1.6 0.1586 1.0 0.13 949.2 9.4 947.6 9.8 927.0 36.0 949.2 9.4 1.0
21148ME_105 255 89000 2.0 11.6727 1.0 2.6452 1.1 0.224 0.8 0.49 1303.2 10.8 1314.1 7.5 1325.0 18.0 1325.0 18.0 1.0
21148ME_106 258 108000 1.1 10.6315 1.1 3.3883 1.0 0.2614 0.8 0.36 1496.9 12.5 1502.6 7.8 1505.0 20.0 1505.0 20.0 1.0
21148ME_107 65 22800 1.8 11.919 1.8 2.8038 1.9 0.2425 1.1 0.31 1399.6 15.0 1357.4 14.0 1282.0 36.0 1282.0 36.0 1.1
21148ME_108 144 44000 2.3 11.6959 1.2 2.657 1.2 0.2255 1.0 0.36 1310.8 12.5 1317.4 9.0 1319.0 24.0 1319.0 24.0 1.0
filename:26539.xml
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