This sample belongs to: Carl Hoiland

Sample Details
Aliquot Name: FT-1b
IGSN:
Stratigraphic Formation Name: McCoy Creek Group unit 5 (Snake Range footwall)
Stratigraphic Age:
Rock Type: Interbedded quartz schist + quartzite
Mineral: Zircon
Latitude: 39.22611
Longitude: -114.10917
Internal Uncertainty Level:
External Uncertainty 206/238 (% two sigma): 2
External Uncertainty 206/207 (% two sigma): 2
Analysis Purpose: DetritalSpectrum
Laboratory Name: University of California–Santa Cruz, ICP-OES/MS laboratory
Analyst Name: Carl Hoiland
Aliquot Reference: Hoiland, C., Hourigan, J., and Miller, E., 2021, Evidence for Large Departures from Lithostatic Pressure During Late Cretaceous Metamorphism in the Northern Snake Range Metamorphic Core Complex, Nevada, in GSA Special Paper “Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, Foreland and Post-Orogenic Slab Rollback (180-20 Ma)”.
Aliquot Instrumental Method: LA-ICPMS
Aliquot Instrumental Reference: Sharman, G.R., Graham, S.A., Grove, M., and Hourigan, J.K., 2013, A reappraisal of the early slip history of the San Andreas fault, central California, USA: Geology, v. 41, p. 727–730.
Aliquot Instrumental Reference:


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.
FT-1_95 117 13189 6.5 13.7931 1.1 1.501 2.5 0.1502 2.4 0.93 898.0 20.0 913.0 17.5 988.0 22.0 898.0 20.0 90.9
FT-1_100 231 8669 3.4 14.0056 0.8 1.559 1.5 0.159 1.4 0.45 951.0 12.0 954.0 9.5 967.0 16.5 967.0 16.5 98.3
FT-1_25 646 3326 6.5 13.8696 0.8 1.565 1.5 0.1568 1.4 0.74 939.0 12.0 956.0 9.5 986.0 15.5 986.0 15.5 95.2
FT-1_27 54 7288 0.8 13.624 1.2 1.67 1.7 0.1644 1.4 0.18 982.0 13.0 993.0 11.0 999.0 25.0 999.0 25.0 98.3
FT-1_48 89 12749 3.3 13.7174 1.0 1.76 1.6 0.1753 1.4 0.39 1042.0 13.5 1029.0 10.5 1005.0 19.5 1005.0 19.5 103.7
FT-1_92 77 11016 3.7 13.6426 1.0 1.773 1.6 0.1765 1.4 0.33 1048.0 13.5 1034.0 10.5 1015.0 19.5 1015.0 19.5 103.3
FT-1_42 224 30924 5.7 13.6612 0.8 1.741 1.6 0.1729 1.4 0.52 1028.0 13.0 1023.0 10.0 1016.0 17.0 1016.0 17.0 101.2
FT-1_78 112 2050 2.1 13.6054 1.0 1.696 1.6 0.1684 1.4 0.38 1003.0 13.0 1005.0 10.5 1017.0 19.0 1017.0 19.0 98.6
FT-1_71 75 10775 1.2 13.587 1.0 1.782 1.7 0.1764 1.4 0.30 1047.0 13.5 1036.0 10.5 1020.0 21.0 1020.0 21.0 102.6
FT-1_20 131 1899 2.8 13.587 0.9 1.77 1.6 0.1736 1.4 0.36 1032.0 13.0 1033.0 10.0 1022.0 18.5 1022.0 18.5 101.0
FT-1_41 178 25237 3.7 13.5135 0.8 1.764 1.6 0.1729 1.4 0.50 1028.0 13.0 1031.0 10.0 1035.0 17.0 1035.0 17.0 99.3
FT-1_37 131 19124 3.5 13.4409 0.9 1.8 1.6 0.1757 1.4 0.42 1043.0 13.0 1044.0 10.0 1046.0 17.5 1046.0 17.5 99.7
FT-1_58 163 24052 2.9 13.3511 0.9 1.842 1.5 0.1786 1.4 0.42 1059.0 13.5 1059.0 10.0 1061.0 17.0 1061.0 17.0 99.8
FT-1_76 101 14957 2.2 13.369 0.9 1.902 1.6 0.1857 1.4 0.43 1098.0 14.0 1081.0 11.0 1061.0 19.5 1061.0 19.5 103.5
FT-1_21 365 9447 2.5 13.369 0.8 1.737 1.5 0.1675 1.4 0.61 998.0 12.5 1021.0 10.0 1063.0 15.5 1063.0 15.5 93.9
FT-1_72 303 4942 3.7 13.2979 0.8 1.758 1.5 0.1707 1.4 0.53 1016.0 13.0 1029.0 10.0 1071.0 16.0 1071.0 16.0 94.9
FT-1_96 48 5919 1.9 13.0548 1.5 1.73 2.9 0.1635 2.4 0.84 973.0 22.0 1008.0 18.5 1078.0 30.0 1078.0 30.0 90.3
FT-1_13 297 30514 4.1 13.245 0.8 1.776 1.6 0.1701 1.4 0.76 1012.0 13.0 1035.0 10.0 1078.0 16.0 1078.0 16.0 93.9
FT-1_81 205 28959 4.6 13.2275 0.9 1.8 1.5 0.1744 1.4 0.46 1036.0 13.0 1044.0 10.0 1078.0 16.5 1078.0 16.5 96.1
FT-1_110 4 535 2.5 11.9332 3.4 2.12 3.8 0.1856 2.2 0.32 1096.0 22.5 1114.0 25.5 1080.0 70.0 1080.0 70.0 101.5
FT-1_80 87 13355 2.9 13.1234 1.0 1.984 1.6 0.1905 1.4 0.28 1124.0 14.5 1109.0 10.5 1087.0 20.0 1087.0 20.0 103.4
FT-1_34 60 9625 2.7 12.9199 1.0 2.049 1.6 0.1926 1.4 0.34 1135.0 14.5 1131.0 11.0 1114.0 20.5 1114.0 20.5 101.9
FT-1_74 288 4490 3.6 12.9534 0.8 1.874 1.5 0.1772 1.4 0.54 1051.0 13.5 1072.0 10.0 1125.0 16.5 1125.0 16.5 93.4
FT-1_94 29 4470 2.2 12.7226 1.4 2.064 1.9 0.1918 1.5 0.24 1131.0 15.0 1129.0 13.0 1130.0 28.0 1130.0 28.0 100.1
FT-1_83 76 11474 1.5 12.7226 1.0 1.989 1.6 0.185 1.4 0.35 1094.0 14.0 1110.0 11.0 1151.0 20.0 1151.0 20.0 95.0
FT-1_66 133 21525 2.5 12.7065 0.9 2.07 1.5 0.1915 1.4 0.08 1129.0 14.5 1137.0 10.5 1157.0 17.0 1157.0 17.0 97.6
FT-1_24 55 8462 2.6 12.6582 1.1 2.05 1.7 0.1865 1.4 0.31 1102.0 14.0 1128.0 11.5 1158.0 22.5 1158.0 22.5 95.2
FT-1_52 124 19580 2.9 12.7389 0.8 2.111 1.6 0.195 1.4 0.45 1148.0 14.5 1151.0 11.0 1158.0 17.0 1158.0 17.0 99.1
FT-1_70 103 16536 1.8 12.6582 0.9 2.121 1.6 0.1957 1.4 0.50 1153.0 15.0 1153.0 11.0 1161.0 18.5 1161.0 18.5 99.3
FT-1_16 348 6235 11.0 12.6743 0.8 2.013 1.5 0.1844 1.4 0.68 1091.0 14.0 1119.0 10.5 1166.0 15.5 1166.0 15.5 93.6
FT-1_73 104 1805 2.2 12.6263 0.9 2.13 1.6 0.1973 1.4 0.36 1161.0 15.0 1157.0 11.0 1166.0 19.0 1166.0 19.0 99.6
FT-1_64 69 3310 2.0 12.5945 1.1 2.009 1.7 0.1835 1.4 0.19 1086.0 14.0 1115.0 11.5 1168.0 22.5 1168.0 22.5 93.0
FT-1_99 253 18465 2.9 12.5628 0.8 2.053 1.5 0.188 1.4 0.46 1110.0 14.0 1132.0 10.5 1183.0 16.0 1183.0 16.0 93.8
FT-1_79 70 10616 2.9 12.5156 1.0 2.051 1.7 0.1879 1.5 0.60 1109.0 15.5 1129.0 11.5 1184.0 19.5 1184.0 19.5 93.7
FT-1_14 90 2272 2.9 12.3457 1.0 2.11 2.8 0.1862 2.5 0.94 1093.0 25.5 1120.0 21.0 1207.0 21.0 1207.0 21.0 90.6
FT-1_36 57 10012 1.7 12.3762 1.0 2.381 1.6 0.2133 1.4 0.35 1246.0 16.0 1236.0 12.0 1212.0 20.5 1212.0 20.5 102.8
FT-1_15 244 41045 2.1 12.3001 0.8 2.323 1.5 0.2063 1.4 0.47 1209.0 15.0 1218.0 11.0 1227.0 16.0 1227.0 16.0 98.5
FT-1_28 276 45435 4.9 12.1803 0.8 2.287 1.5 0.2007 1.4 0.66 1179.0 14.5 1207.0 11.0 1247.0 15.0 1247.0 15.0 94.5
FT-1_38 48 7962 2.3 12.0627 1.1 2.36 1.9 0.2076 1.5 0.70 1217.0 16.5 1228.0 13.5 1252.0 23.0 1252.0 23.0 97.2
FT-1_91 229 15381 3.1 12.1065 0.8 2.357 1.5 0.2085 1.4 0.51 1221.0 15.0 1229.0 10.5 1258.0 15.5 1258.0 15.5 97.1
FT-1_103 33 1889 2.1 11.9332 1.1 2.398 1.8 0.2084 1.5 0.56 1219.0 17.0 1237.0 13.5 1266.0 22.5 1266.0 22.5 96.3
FT-1_12 335 6407 2.6 11.9904 0.8 2.477 1.5 0.2147 1.4 0.61 1254.0 15.5 1265.0 11.0 1278.0 15.0 1278.0 15.0 98.1
FT-1_67 17 3044 2.7 11.6144 1.5 2.57 1.9 0.2179 1.5 0.38 1269.0 18.0 1284.0 14.5 1296.0 28.5 1296.0 28.5 97.9
FT-1_97 34 6087 1.2 11.8343 1.1 2.536 1.7 0.2184 1.5 0.42 1273.0 17.0 1277.0 12.5 1297.0 21.5 1297.0 21.5 98.1
FT-1_26 24 4644 1.8 11.6144 1.2 2.786 1.8 0.2349 1.5 0.34 1359.0 18.0 1347.0 13.5 1318.0 24.0 1318.0 24.0 103.1
FT-1_69 224 41026 3.8 11.7371 0.8 2.6 1.5 0.2223 1.4 0.60 1294.0 16.0 1300.0 11.0 1319.0 15.0 1319.0 15.0 98.1
FT-1_109 8 1333 1.2 11.2108 2.1 2.64 2.5 0.2168 1.8 0.26 1262.0 20.0 1293.0 18.0 1321.0 42.5 1321.0 42.5 95.5
FT-1_35 25 755 1.3 11.5473 1.3 2.77 2.3 0.2295 1.9 0.75 1334.0 23.0 1332.0 18.0 1325.0 26.5 1325.0 26.5 100.7
FT-1_49 67 10586 5.4 11.6144 1.0 2.678 1.6 0.2265 1.4 0.49 1316.0 17.0 1319.0 12.0 1332.0 19.0 1332.0 19.0 98.8
FT-1_61 69 12285 1.2 11.5473 1.0 2.597 1.6 0.2181 1.4 0.46 1271.0 16.5 1298.0 12.0 1341.0 19.0 1341.0 19.0 94.8
FT-1_107 6 1096 1.9 10.9051 2.2 2.76 2.5 0.2228 1.9 0.26 1293.0 22.0 1321.0 19.0 1341.0 45.0 1341.0 45.0 96.4
FT-1_77 62 12202 2.7 11.4811 1.0 2.884 1.6 0.2422 1.4 0.39 1398.0 17.5 1375.0 12.0 1350.0 19.0 1350.0 19.0 103.6
FT-1_90 87 16866 2.2 11.3766 0.9 2.892 1.6 0.2408 1.4 0.38 1391.0 17.5 1379.0 11.5 1373.0 17.5 1373.0 17.5 101.3
FT-1_45 179 33475 1.7 11.2867 0.8 2.856 1.5 0.2336 1.4 0.54 1353.0 16.5 1369.0 11.5 1392.0 16.0 1392.0 16.0 97.2
FT-1_33 63 12712 3.6 11.1857 1.0 3.053 1.6 0.2471 1.4 0.41 1423.0 18.0 1418.0 12.5 1407.0 18.5 1407.0 18.5 101.1
FT-1_101 24 4829 1.9 10.8578 1.2 3.18 1.9 0.2508 1.6 0.61 1440.0 21.0 1441.0 15.0 1449.0 23.5 1449.0 23.5 99.4
FT-1_44 83 17138 1.8 10.9051 0.9 3.19 1.6 0.2517 1.4 0.41 1448.0 18.0 1452.0 12.0 1458.0 17.0 1458.0 17.0 99.3
FT-1_29 47 805 1.8 10.7411 1.2 3.23 1.9 0.2515 1.6 0.67 1444.0 21.5 1464.0 15.0 1471.0 22.5 1471.0 22.5 98.2
FT-1_84 249 49912 1.8 10.8225 0.8 3.13 1.5 0.2478 1.4 0.60 1428.0 17.5 1440.0 11.5 1473.0 15.0 1473.0 15.0 96.9
FT-1_62 51 10366 2.1 10.7643 1.0 3.17 1.6 0.2478 1.4 0.48 1426.0 18.0 1448.0 12.5 1474.0 18.5 1474.0 18.5 96.7
FT-1_46 140 7221 2.8 10.8225 0.8 3.043 1.5 0.2384 1.4 0.52 1378.0 17.0 1418.0 11.5 1475.0 16.0 1475.0 16.0 93.4
FT-1_59 39 1274 2.9 10.3093 1.1 3.32 1.8 0.2491 1.4 0.40 1433.0 18.5 1482.0 13.5 1551.0 21.5 1551.0 21.5 92.4
FT-1_75 205 9569 2.0 10.352 0.8 3.25 1.5 0.2457 1.4 0.73 1416.0 18.5 1467.0 12.5 1555.0 15.5 1555.0 15.5 91.1
FT-1_19 47 6435 2.1 9.8522 0.9 4.06 1.6 0.2877 1.4 0.44 1629.0 20.0 1643.0 13.0 1647.0 18.0 1647.0 18.0 98.9
FT-1_22 116 6873 0.9 9.6805 0.8 4.04 1.5 0.2821 1.4 0.66 1602.0 19.5 1640.0 12.5 1680.0 15.0 1680.0 15.0 95.4
FT-1_60 224 54597 3.4 9.2851 0.7 4.33 1.6 0.292 1.4 0.90 1653.0 20.5 1697.0 13.5 1759.0 14.0 1759.0 14.0 94.0
FT-1_32 112 27432 0.9 9.2336 0.8 4.45 1.6 0.2974 1.4 0.52 1679.0 20.5 1721.0 12.5 1766.0 15.0 1766.0 15.0 95.1
FT-1_40 213 15995 2.8 9.2251 0.7 4.9 1.6 0.329 1.5 0.93 1830.0 24.0 1799.0 13.5 1771.0 14.0 1771.0 14.0 103.3
FT-1_57 160 37598 3.2 9.1996 0.8 4.29 1.6 0.2856 1.4 0.84 1618.0 20.5 1688.0 13.5 1775.0 14.0 1775.0 14.0 91.2
FT-1_53 96 23057 1.0 9.1743 0.9 4.64 1.6 0.309 1.4 0.57 1735.0 22.0 1755.0 13.5 1778.0 17.0 1778.0 17.0 97.6
FT-1_10 111 29603 3.4 8.9206 0.8 5.04 1.6 0.3261 1.4 0.68 1819.0 22.0 1825.0 13.0 1831.0 14.5 1831.0 14.5 99.3
FT-1_3 190 50100 3.7 8.9047 0.8 4.96 1.5 0.3212 1.4 0.67 1795.0 21.5 1812.0 12.5 1835.0 14.0 1835.0 14.0 97.8
FT-1_8 146 36985 2.4 8.8339 0.8 4.82 1.6 0.3092 1.4 0.87 1736.0 22.0 1787.0 13.0 1851.0 14.0 1851.0 14.0 93.8
FT-1_43 133 3939 1.4 5.6497 0.8 10.88 1.5 0.446 1.3 0.70 2377.0 27.5 2513.0 14.5 2623.0 13.0 2623.0 13.0 90.6
FT-1_30 147 3060 1.5 5.4615 0.8 11.55 1.6 0.456 1.4 0.83 2419.0 29.0 2566.0 14.5 2679.0 12.5 2679.0 12.5 90.3
FT-1_56 159 63083 1.5 5.4348 0.7 12.24 1.5 0.483 1.3 0.75 2539.0 28.5 2622.0 14.0 2688.0 12.0 2688.0 12.0 94.5
FT-1_6 59 23884 1.0 5.4289 0.8 12.59 1.5 0.497 1.4 0.69 2602.0 29.5 2648.0 14.0 2689.0 13.0 2689.0 13.0 96.8
FT-1_1 1170 1419 4.2 14.4509 0.8 0.598 1.5 0.063 1.3 0.70 394.0 5.5 476.0 6.0 902.0 16.0 394.0 5.5 43.7
FT-1_47 655 507 4.1 6.4185 1.0 1.544 2.8 0.0709 2.5 0.98 440.0 10.5 923.0 17.5 2402.0 16.5 440.0 10.5 18.3
FT-1_54 295 16852 5.9 13.0548 1.2 1.06 6.1 0.093 5.4 0.99 562.0 29.5 646.0 28.5 1087.0 27.0 562.0 29.5 51.7
FT-1_63 383 959 1.4 9.1324 0.9 1.49 3.4 0.098 3.4 0.99 597.0 19.0 886.0 21.0 1785.0 16.0 597.0 19.0 33.4
FT-1_11 372 34701 4.9 13.6799 0.9 1.186 2.0 0.1167 1.8 0.86 711.0 12.5 790.0 11.5 1014.0 17.5 711.0 12.5 70.1
FT-1_7 753 1269 2.5 7.3475 0.7 2.214 1.5 0.1181 1.4 0.85 719.0 9.5 1186.0 10.5 2176.0 13.0 719.0 9.5 33.0
FT-1_17 228 24545 2.0 11.5875 0.9 1.61 3.1 0.1355 3.1 0.98 811.0 24.0 943.0 19.5 1343.0 17.0 811.0 24.0 60.4
FT-1_50 183 5329 2.7 11.8906 1.0 1.62 4.0 0.137 3.6 0.98 815.0 28.5 917.0 25.5 1282.0 20.0 815.0 28.5 63.6
FT-1_39 306 25005 4.0 11.4025 1.1 1.73 5.8 0.139 5.4 0.99 819.0 42.5 933.0 38.5 1365.0 21.5 819.0 42.5 60.0
FT-1_104 10 548 1.7 8.7336 3.7 2.29 3.9 0.1475 2.8 0.44 883.0 23.0 1171.0 28.5 1750.0 65.0 883.0 23.0 50.5
FT-1_102 10 1494 2.1 13.7552 2.1 1.863 2.4 0.1888 1.7 0.28 1117.0 18.0 1058.0 17.0 907.0 44.0 907.0 44.0 123.2
FT-1_105 6 986 2.2 12.6582 2.6 2.23 3.1 0.2084 2.1 0.39 1215.0 23.0 1156.0 21.5 1020.0 50.0 1020.0 50.0 119.1
FT-1_85 85 2434 2.5 12.7389 1.0 1.738 1.6 0.1615 1.4 0.44 965.0 12.5 1020.0 10.5 1155.0 20.0 1155.0 20.0 83.5
FT-1_55 222 5591 4.8 12.5313 0.8 1.96 1.5 0.1781 1.4 0.58 1056.0 13.5 1101.0 10.5 1187.0 16.0 1187.0 16.0 89.0
FT-1_4 48 7709 2.4 11.6959 1.2 2.351 1.7 0.2006 1.4 0.19 1178.0 15.5 1224.0 12.0 1311.0 22.5 1311.0 22.5 89.9
FT-1_89 243 38934 1.9 11.7509 0.8 2.321 1.6 0.1994 1.5 0.84 1171.0 16.0 1217.0 11.5 1316.0 15.5 1316.0 15.5 89.0
FT-1_2 36 4314 2.3 11.5741 1.3 1.82 2.1 0.1547 1.8 0.70 925.0 15.5 1044.0 13.5 1321.0 24.0 1321.0 24.0 70.0
FT-1_106 5 1097 2.2 11.1359 2.1 3.11 2.6 0.254 1.9 0.38 1454.0 24.0 1414.0 20.5 1323.0 45.0 1323.0 45.0 109.9
FT-1_108 1 185 1.6 8.6207 5.6 2.39 5.4 0.164 3.0 0.18 973.0 28.0 1109.0 42.0 1330.0 110.0 1330.0 110.0 73.2
FT-1_65 270 4008 1.2 11.4548 0.8 2.31 1.6 0.1923 1.5 0.89 1133.0 15.5 1212.0 12.0 1366.0 15.0 1366.0 15.0 82.9
FT-1_88 77 1428 1.3 11.4025 1.1 2.48 2.6 0.206 2.4 0.92 1201.0 27.5 1244.0 21.0 1369.0 21.0 1369.0 21.0 87.7
FT-1_23 159 27523 2.0 11.4155 0.9 2.566 1.8 0.2107 1.6 0.88 1233.0 17.5 1288.0 13.0 1374.0 16.5 1374.0 16.5 89.7
FT-1_9 219 1663 0.6 11.3122 1.0 2.05 2.4 0.1673 2.5 0.94 991.0 23.0 1112.0 17.5 1389.0 18.5 1389.0 18.5 71.3
FT-1_86 86 15998 2.5 10.2669 1.1 2.96 3.0 0.22 2.7 0.96 1273.0 32.0 1359.0 26.0 1567.0 20.0 1567.0 20.0 81.2
FT-1_87 218 2490 3.2 10.1626 0.8 3.06 1.6 0.2268 1.4 0.65 1317.0 17.0 1419.0 12.5 1589.0 16.0 1589.0 16.0 82.9
FT-1_82 50 6850 24.0 9.434 8.0 3.31 8.9 0.219 5.0 0.67 1280.0 60.0 1450.0 65.0 1650.0 125.0 1650.0 125.0 77.6
FT-1_51 98 1317 1.3 9.7847 0.9 3.37 1.6 0.2399 1.4 0.50 1386.0 17.0 1496.0 13.0 1657.0 17.0 1657.0 17.0 83.6
FT-1_18 284 15666 2.2 9.5694 0.8 3.74 1.9 0.2581 1.8 0.97 1476.0 23.5 1568.0 16.5 1703.0 14.0 1703.0 14.0 86.7
FT-1_5 464 52474 2.7 9.3721 0.7 2.75 1.8 0.1873 1.7 0.97 1105.0 17.0 1334.0 14.0 1741.0 14.0 1741.0 14.0 63.5
FT-1_98 295 5644 2.8 9.2593 0.8 3.89 1.9 0.2614 1.7 0.97 1497.0 23.0 1604.0 16.5 1765.0 14.5 1765.0 14.5 84.8
FT-1_93 287 53655 3.1 8.7642 0.7 3.61 1.5 0.2304 1.4 0.70 1336.0 16.5 1550.0 12.0 1863.0 14.0 1863.0 14.0 71.7
FT-1_68 104 4603 2.6 6.1881 0.9 5.64 3.9 0.252 3.8 0.99 1414.0 46.5 1829.0 30.5 2467.0 14.5 2467.0 14.5 57.3
filename:22498.xml
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