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UTh-reduced-data-13-Feb-2024_original.xls
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UTh-reduced-data-13-Feb-2024_original.xls
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Date of reduction: 13-Feb-2024 21:15:17
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 4.51E-07
U239/U238 ratio 2.16E-06
Detrital Th230/Th232 ratio 4.40E+00
Detrital Th230/Th232 uncertainty 2.20E+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 0.02388 1 0.3 1/1/2021 12.5 0.5
AB12-6A Calcite 0.20324 0.09875 1 0.3 1/1/2021 12.5 0.5
AB12-6B Calcite 0.21084 0.08489 1 0.3 1/1/2021 12.5 0.5
AB12-6C Calcite 0.20265 0.07555 1 0.3 1/1/2021 12.5 0.5
AB12-6D Calcite 0.21228 0.08191 1 0.3 1/1/2021 12.5 0.5
AB12-6E Calcite 0.20121 0.07997 6 0.3 1/1/2021 12.5 0.5
AB12-6F Calcite 0.19899 0.07739 7 0.3 1/1/2021 12.5 0.5
AB12-6G Calcite 0.19852 0.08894 12 0.3 1/1/2021 12.5 0.5
AB12-6H Calcite 0.22197 0.08471 12 0.3 1/1/2021 12.5 0.5
AB10-bottom Calcite 0.09834 0.07645 6 0.3 1/1/2021 12.5 0.5
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 (V) Th230 (cps) Th229 (V) Th230bg (V) 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 0.00112 0.00417 8.654372 0.001124001 0.5667346 13.57977435 1.124 4.17 26.79 42.7
AB12-6A 0.579 0.000965 2545.952 0.002906952 0.4737409 0.05847462 0.01 3.94 0.14 0.03 2.907 0.965 1.58 26.96
AB12-6B 8.44 0.0105 3892.969 0.003341673 0.4667226 0.004224632 0.01 3.28 0.12 0.03 0.6268 3.3417 10.5 20.24 36.45
AB12-6C 7.11 0.00786 8585.592 0.003753776 1.438769 0.004639407 0.01 3.27 0.07 0.03 0.5263 3.1125 3.7538 7.86 16.79 46.2
AB12-6D 11.6 0.0149 8172.451 0.004113573 0.4833913 0.002657859 0.01 3.47 0.07 0.06 3.2987 4.1136 14.9 28.96 46.46
AB12-6E 34.8 0.00243 119758.1 0.002303714 0.7167528 0.000986256 0 0.2 0 0.06 0.7193 2.9623 2.3037 2.43 28.75 26.65
AB12-6F 19.4 0.0018 138989 0.003546004 0.7167528 0.001788455 0 0.27 0 0.03 3.546 1.8 25.4 41.8
AB12-6G 24 0.00118 326098.9 0.003937576 0.9123901 0.001472784 0 0.13 0 0.01 1.0067 3.9376 1.18 24.57 39.9
AB12-6H 33.4 0.00158 367605.5 0.004329024 0.9667828 0.001265072 0 0.13 0 0.01 4.329 1.58 32.65 45.52
AB10-bottom 41.7 0.003 31283.12 0.003594822 1.316825 0.00081113 0 0.22 0.02 0.04 0.9673 3.5948 3 33.45 41.32
PROCEDURAL BLANK MASSES
230Th (fg) 232Th (pg) 234U (fg) 238U (pg)
0.178876211 0.311283721 -77.02528285 3.803300226
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) Upper Age (corr) Lower Age (corr)
ng/g pg/g per mille activity ppm atomic yr yr per mille yr BP yr yr
AB12-6A 181.007521 4.000087394 4759.511501 95.8636694 -13.61973103 25.66839434 0.227371711 0.003748711 137.2930501 0.694407361 28590.83712 1037.616308 27781.35008 954.2652261 -14.73050044 27.76183171 27710.35008 1037.616308 28672.67356 26945.90861
AB12-6B 199.0245756 3.988387264 5718.225934 115.638624 39.44277684 17.13607917 0.228050646 0.001130082 126.0243848 0.654683333 26965.78647 543.3788219 26129.76314 658.2091491 42.46119957 18.4476143 26058.76314 658.2091491 26647.00908 25632.92801
AB12-6C 207.9516576 4.197973566 4978.416187 99.89380377 36.48201331 17.08996363 0.398498776 0.002073583 264.2871592 1.066291301 52745.27964 1243.668222 52048.96663 1230.290692 42.25423936 19.7945019 51977.96663 1243.668222 53257.44674 50898.17702
AB12-6D 185.6336288 3.71752411 2584.760834 51.83745411 44.00604622 18.12338898 0.401188641 0.001621742 457.470193 1.635727945 52677.50289 1281.777406 52276.42595 1260.560154 51.00146093 21.00515582 52205.42595 1281.777406 53552.81471 51063.94526
AB12-6E 3511.002996 350.34177 2590.609944 52.43340435 5.361878065 1.658453274 0.573489578 0.004304382 12340.49517 46.66398439 92046.48869 1116.618067 92024.34312 267.2197399 6.951883064 2.150255446 91953.34312 1116.618067 92292.22971 91758.24935
AB12-6F 2595.823183 219.2803455 5281.235245 106.4187889 7.061466603 2.150876008 0.572452114 0.004728005 4467.418532 15.06904804 91513.98318 1231.135673 91453.04205 343.6129193 9.14071661 2.784215921 91382.04205 1231.135673 91796.78093 91112.26404
AB12-6G 5657.937594 1539.72254 14103.57374 285.9307406 6.377431285 1.737803037 0.628141857 0.008691669 4000.963579 17.28256519 106552.0861 2522.072278 106477.3766 356.2556903 8.612813191 2.346944119 106406.3766 2522.072278 106833.0661 106124.4851
AB12-6H 4983.063235 1451.836169 15777.31579 317.5501973 2.54240108 1.523711039 0.633558996 0.008934855 3177.080552 8.423423973 108928.0797 2656.842357 108832.6884 327.5141079 3.456447676 2.07151963 108761.6884 2656.842357 109157.8582 108509.8194
AB10-bottom 6674.893397 544.2156532 8005.126057 162.1469192 8.393867834 1.758900823 0.098579765 0.000640903 1305.094087 5.146657717 11216.33603 79.59293554 11180.40002 27.53317507 8.662931584 1.815282161 11109.40002 79.59293554 11201.29906 11159.58005
FINAL SAMPLE CONCENTRATIONS AND AGES WITH SIGNIFICANT FIGURES
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) Upper Age (corr) Lower Age (corr)
ng/g pg/g per mille activity ppm atomic yr yr per mille yr BP yr yr
AB12-6A 181 4 4760 100 -10 30 0.227 0.004 137.3 0.7 28600 1000 27800 1000 -10 30 27700 1000 30000 30000
AB12-6B 199 4 5720 120 39 17 0.2281 0.0011 126 0.7 27000 500 26100 700 42 18 26100 700 30000 30000
AB12-6C 208 4 4980 100 36 17 0.398 0.002 264.3 1.1 52700 1200 52000 1200 42 20 52000 1200 50000 50000
AB12-6D 186 4 2580 50 44 18 0.4012 0.0016 457.5 1.6 52700 1300 52300 1300 50 20 52200 1300 50000 50000
AB12-6E 3500 400 2590 50 5.4 1.7 0.573 0.004 12340 50 92000 1100 92000 300 7 2 92000 1100 90000 90000
AB12-6F 2600 200 5280 110 7 2 0.572 0.005 4467 15 91500 1200 91500 300 9 3 91400 1200 90000 90000
AB12-6G 5700 1500 14100 300 6.4 1.7 0.628 0.009 4001 17 107000 3000 106500 400 9 2 106000 3000 110000 110000
AB12-6H 5000 1500 15800 300 2.5 1.5 0.634 0.009 3177 8 109000 3000 108800 300 3 2 109000 3000 110000 110000
AB10-bottom 6700 500 8010 160 8.4 1.8 0.0986 0.0006 1305 5 11220 80 11180 30 8.7 1.8 11110 80 11000 11000