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UTh-reduced-data-15-Feb-2024.xls
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Date of reduction: 15-Feb-2024 12:02:50
Version of script: 1.1.090915
FILENAMES OF RAW DATA FILES
User input of sample data mad_input_2.csv
U samp file U samp_no tail_meas.csv
Th samp file Th samp_meas.csv
U std file U std_no tail_meas.csv
U tail file U tail-237-236.5-234.5-233.5_meas.csv
Th std file Th std_meas.csv
USER INPUT OF VALUES OF CONSTANTS
230Th/232Th Tail Correction 5.1700e-07
U239/U238 ratio 2.3900e-06
Detrital Th230/Th232 ratio 4.400000e+00
Detrital Th230/Th232 uncertainty 2.2000e+00
USER INPUT OF SAMPLE DATA
Sample Name Spike Type Powder Weight (g) Spike Weight (g) U frac vol (mL) Th frac vol (mL) Date of Chem U std conc Th std conc
Procedural blank Calcite 0.023880000000 1.00 0.30 1/1/2021 12.50 0.50
AB12-6A Calcite 0.203240000000 0.098750000000 1.00 0.30 1/1/2021 12.50 0.50
AB12-6B Calcite 0.210840000000 0.084890000000 1.00 0.30 1/1/2021 12.50 0.50
AB12-6C Calcite 0.202650000000 0.075550000000 1.00 0.30 1/1/2021 12.50 0.50
AB12-6D Calcite 0.212280000000 0.081910000000 1.00 0.30 1/1/2021 12.50 0.50
AB12-6E Calcite 0.201210000000 0.079970000000 6.00 0.30 1/1/2021 12.50 0.50
AB12-6F Calcite 0.198990000000 0.077390000000 7.00 0.30 1/1/2021 12.50 0.50
AB12-6G Calcite 0.198520000000 0.088940000000 12.00 0.30 1/1/2021 12.50 0.50
AB12-6H Calcite 0.221970000000 0.084710000000 12.00 0.30 1/1/2021 12.50 0.50
AB10-bottom Calcite 0.098340000000 0.076450000000 6.00 0.30 1/1/2021 12.50 0.50
ANALYSIS NUMBERS AND DATE OF ANALYSIS
Sample Name U samp # Date Th samp # Date U samp tail # Date U std1 # Date U std1 tail # Date U std2 # Date U std2 tail # Date Th std1 # Date Th std2 # Date
Procedural blank 3418 Analysed on 27 January 2023 at 10:24 3499 Analysed on 30 January 2023 at 10:58 3422 Analysed on 27 January 2023 at 10:35 3415 Analysed on 27 January 2023 at 10:14 3416 Analysed on 27 January 2023 at 10:15 3421 Analysed on 27 January 2023 at 10:33 3422 Analysed on 27 January 2023 at 10:35 3497 Analysed on 30 January 2023 at 10:47 3501 Analysed on 30 January 2023 at 11:09
AB12-6A 3424 Analysed on 27 January 2023 at 10:43 3503 Analysed on 30 January 2023 at 11:20 3428 Analysed on 27 January 2023 at 10:55 3421 Analysed on 27 January 2023 at 10:33 3422 Analysed on 27 January 2023 at 10:35 3427 Analysed on 27 January 2023 at 10:54 3428 Analysed on 27 January 2023 at 10:55 3501 Analysed on 30 January 2023 at 11:09 3505 Analysed on 30 January 2023 at 11:31
AB12-6B 3430 Analysed on 27 January 2023 at 11:04 3507 Analysed on 30 January 2023 at 11:42 3434 Analysed on 27 January 2023 at 11:16 3427 Analysed on 27 January 2023 at 10:54 3428 Analysed on 27 January 2023 at 10:55 3433 Analysed on 27 January 2023 at 11:15 3434 Analysed on 27 January 2023 at 11:16 3505 Analysed on 30 January 2023 at 11:31 3509 Analysed on 30 January 2023 at 11:54
AB12-6C 3436 Analysed on 27 January 2023 at 11:24 3511 Analysed on 30 January 2023 at 12:04 3440 Analysed on 27 January 2023 at 11:34 3433 Analysed on 27 January 2023 at 11:15 3434 Analysed on 27 January 2023 at 11:16 3439 Analysed on 27 January 2023 at 11:33 3440 Analysed on 27 January 2023 at 11:34 3509 Analysed on 30 January 2023 at 11:54 3513 Analysed on 30 January 2023 at 12:16
AB12-6D 3442 Analysed on 27 January 2023 at 11:43 3515 Analysed on 30 January 2023 at 12:26 3446 Analysed on 27 January 2023 at 11:55 3439 Analysed on 27 January 2023 at 11:33 3440 Analysed on 27 January 2023 at 11:34 3445 Analysed on 27 January 2023 at 11:54 3446 Analysed on 27 January 2023 at 11:55 3513 Analysed on 30 January 2023 at 12:16 3517 Analysed on 30 January 2023 at 12:38
AB12-6E 3453 Analysed on 27 January 2023 at 12:54 3519 Analysed on 30 January 2023 at 12:48 3457 Analysed on 27 January 2023 at 13:06 3445 Analysed on 27 January 2023 at 11:54 3446 Analysed on 27 January 2023 at 11:55 3456 Analysed on 27 January 2023 at 13:05 3457 Analysed on 27 January 2023 at 13:06 3517 Analysed on 30 January 2023 at 12:38 3521 Analysed on 30 January 2023 at 13:00
AB12-6F 3461 Analysed on 27 January 2023 at 13:26 3523 Analysed on 30 January 2023 at 13:10 3465 Analysed on 27 January 2023 at 13:38 3456 Analysed on 27 January 2023 at 13:05 3457 Analysed on 27 January 2023 at 13:06 3464 Analysed on 27 January 2023 at 13:37 3465 Analysed on 27 January 2023 at 13:38 3521 Analysed on 30 January 2023 at 13:00 3525 Analysed on 30 January 2023 at 13:22
AB12-6G 3471 Analysed on 27 January 2023 at 14:08 3527 Analysed on 30 January 2023 at 13:32 3475 Analysed on 27 January 2023 at 14:20 3464 Analysed on 27 January 2023 at 13:37 3465 Analysed on 27 January 2023 at 13:38 3474 Analysed on 27 January 2023 at 14:19 3475 Analysed on 27 January 2023 at 14:20 3525 Analysed on 30 January 2023 at 13:22 3529 Analysed on 30 January 2023 at 13:44
AB12-6H 3479 Analysed on 27 January 2023 at 14:42 3531 Analysed on 30 January 2023 at 13:55 3483 Analysed on 27 January 2023 at 14:54 3474 Analysed on 27 January 2023 at 14:19 3475 Analysed on 27 January 2023 at 14:20 3482 Analysed on 27 January 2023 at 14:53 3483 Analysed on 27 January 2023 at 14:54 3529 Analysed on 30 January 2023 at 13:44 3533 Analysed on 30 January 2023 at 14:06
SAMPLE RAW INTENSITIES, IMPACT OF BLANK CORRECTION, STANDARD FLAGS, AND PERCENT YIELD
Raw Intensity Raw Intensity Raw Intensity Raw Intensity Raw Intensity Raw Intensity Blk Corr (%) Blk Corr (%) Blk Corr (%) Blk Corr (%) Flag Flag Flag Flag Flag Flag Yield Yield
Sample Name U238 (V) U236 (mV) Th230 (cps) Th229 (mV) Th230bg (cps) 234tail/234 (per mil) 238/236 238/234 230/229 232/229 Th mass bias U mass bias Th IC yield U IC yield Th low spike U low spike U236 (%) Th229 (%)
Procedural blank 0.001120000000 0.004170000000 8.654372000000 0.001124001000 0.566734600000 13.580485884496 1.1240 4.1700 28.44 45.19
AB12-6A 0.579000000000 0.965000000000 2545.952000000000 2.906952000000 0.473740900000 58.482882521623 0.01 3.95 0.14 0.03 2.9070 0.9650 1.68 28.54
AB12-6B 8.440000000000 10.500000000000 3892.969000000000 3.341673000000 0.466722600000 4.230911869292 0.01 3.29 0.12 0.03 0.6268 3.3417 10.5000 21.49 38.58
AB12-6C 7.110000000000 7.860000000000 8585.592000000001 3.753776000000 1.438769000000 4.644982381198 0.01 3.28 0.07 0.03 0.5263 3.1125 3.7538 7.8600 17.83 48.91
AB12-6D 11.600000000000 14.900000000000 8172.451000000000 4.113573000000 0.483391300000 2.664327749701 0.01 3.48 0.07 0.06 3.2987 4.1136 14.9000 30.75 49.17
AB12-6E 34.800000000000 2.430000000000 119758.100000000006 2.303714000000 0.716752800000 0.986611091782 0.00 0.20 0.00 0.06 0.7193 2.9623 2.3037 2.4300 30.52 28.21
AB12-6F 19.400000000000 1.800000000000 138989.000000000000 3.546004000000 0.716752800000 1.788927683562 0.00 0.28 0.00 0.03 3.5460 1.8000 26.97 44.24
AB12-6G 24.000000000000 1.180000000000 326098.900000000023 3.937576000000 0.912390100000 1.473031237914 0.00 0.13 0.00 0.01 1.0067 3.9376 1.1800 26.09 42.24
AB12-6H 33.400000000000 1.580000000000 367605.500000000000 4.329024000000 0.966782800000 1.265316460619 0.00 0.13 0.00 0.01 4.3290 1.5800 34.66 48.18
AB10-bottom 41.700000000000 3.000000000000 31283.119999999999 3.594822000000 1.316825000000 0.811498794720 0.00 0.22 0.02 0.04 0.9673 3.5948 3.0000 35.52 43.74
PROCEDURAL BLANK MASSES
230Th (fg) 232Th (pg) 234U (fg) 238U (pg)
0.168973019616 0.294084491013 -72.751048126801 3.582396479762
FINAL SAMPLE CONCENTRATIONS AND AGES
Sample Name 238U ±(2sig) 232Th ±(2sig) d234U ±(2sig) (230Th/238U) ±(2sig) 230Th/232Th ±(2sig) Age (uncorr) ±(2sig) Age (corr) ±(2sig) d234init ±(2sig) Age (corr) ±(2sig)
ng/g pg/g per mille activity ppm atomic yr yr per mille yr BP
AB12-6A 170.494220170871 3.767753831735 4496.536197191877 90.566954058242 -13.953848706029 25.723109007437 0.227915177346 0.003765020422 137.209031180071 0.708270977632 28680.614303616658 1043.875343769864 27868.383986185549 959.705627603177 -15.095574632334 27.827844462261 27797.383986185549 1043.875343769864
AB12-6B 187.464805952449 3.756733269820 5402.279181034236 109.249291350627 39.204032493296 17.187660893474 0.228582857292 0.001164453722 125.940166707126 0.670944875959 27044.384481934314 548.052165306937 26205.639662377533 661.684369709357 42.213222996550 18.507105089616 26134.639662377533 661.684369709357
AB12-6C 195.873384152914 3.954146354813 4703.345833517865 94.374413095083 36.280683247544 17.140911252983 0.399572987606 0.002091030037 264.205904202729 1.076056044448 52941.829058026880 1254.032973794046 52243.276258405996 1239.845850033787 42.044103330093 19.864401026981 52172.276258405996 1254.032973794046
AB12-6D 174.851633805912 3.501602422263 2441.946121929941 48.973300876196 43.764208829386 18.178537764564 0.402326048712 0.001632249808 457.393146810564 1.643044535100 52885.745249268337 1292.743791369086 52483.365078414754 1271.181478951082 50.750809444416 21.081381300798 52412.365078414754 1292.743791369086
AB12-6E 3307.076493112469 329.993176719569 2447.472052925603 49.536323324152 5.348831283759 1.660161630187 0.575220596152 0.004317401285 12340.672041835338 46.665817715554 92485.483652942872 1124.620528401455 92463.271364622677 269.515497785866 6.943562947937 2.155138346302 92392.271364622677 1124.620528401455
AB12-6F 2445.052264863539 206.544077777173 4989.433356909966 100.538875896683 7.044443093428 2.153345457915 0.574172882851 0.004742306771 4467.427184621201 15.070779557187 91947.940128158531 1239.952721984182 91886.815223277023 346.574471383253 9.129849849457 2.790826915015 91815.815223277023 1239.952721984182
AB12-6G 5329.312574451239 1450.292187821631 13324.314861913608 270.132328643554 6.367921011609 1.738453069404 0.630028589855 0.008717832549 4000.962198707579 17.283706187807 107097.337082538535 2542.397776804615 107022.403127527272 359.432808327485 8.613207201424 2.351436187325 106951.403127527272 2542.397776804615
AB12-6H 4693.636349612918 1367.510443660392 14905.578340025741 300.004728693687 2.533367406333 1.524477643226 0.635458443400 0.008961718676 3177.061676582862 8.425418385587 109491.946221255886 2678.715736449945 109396.267598505336 330.517990277177 3.449648354129 2.075860808869 109325.267598505336 2678.715736449945
AB10-bottom 6287.201426455415 512.606453444057 7562.822165409431 153.187883076979 8.380713201693 1.760754393196 0.098871437832 0.000643176228 1305.035182439560 5.154620740198 11251.446992615718 79.904874311499 11215.402550355535 27.638328345548 8.650209701197 1.817374657326 11144.402550355535 79.904874311499