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tiger-btiger-b
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Updated blank correction,. inputs
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‎Back End/MIT_reduceSample.m

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% Calculate masses for procedural blank
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blank_mass.Th230_fg = blank_spk.Th.Th230_Th229 * spk.Th229 * 230 * blank_r.spk_wt * 1000;
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blank_mass.Th232_pg = blank_spk.Th.Th232_Th229 * spk.Th229 * 232 * blank_r.spk_wt;
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blank_mass.U234_fg = blank_spk.U.U234_U233 * spk.U233 * 234 * blank_r.spk_wt * 1000;
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blank_mass.U238_pg = blank_spk.U.U238_U236 * spk.U233 * 238 * blank_r.spk_wt * spk.U236_U233;
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% conditional statement for U234
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if blank_spk.U.U234_U233 * spk.U233 * 234 * blank_r.spk_wt * 1000 > blank_mass.U238_pg / 15
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blank_mass.U234_fg = blank_spk.U.U234_U233 * spk.U233 * 234 * blank_r.spk_wt * 1000;
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else
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blank_mass.U234_fg = blank_mass.U238_pg / 15;
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end
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% Apply blank correction to sample
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sampU_blnk.U238_U236 = sampU_spk.U238_U236*(1 - blank_mass.U238_pg /...

‎UTh-reduced-data-10-May-2024.xls

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Date of reduction: 10-May-2024 14:42:18
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Version of script: 1.1.021524
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FILENAMES OF RAW DATA FILES
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User input of sample data mad_input_3.csv
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U samp file U samp_no tail_meas.csv
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Th samp file Th samp_meas.csv
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U std file U std_no tail_meas.csv
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U tail file U tail-237-236.5-234.5-233.5_meas.csv
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Th std file Th std_meas.csv
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USER INPUT OF VALUES OF CONSTANTS
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230Th/232Th Tail Correction 6.3900e-07
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U239/U238 ratio 2.2900e-06
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Detrital Th230/Th232 ratio 4.400000e+00
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Detrital Th230/Th232 uncertainty 2.2000e+00
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USER INPUT OF SAMPLE DATA
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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
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Procedural blank Aragonite 0.022790000000 1.00 0.30 1/1/2021 12.50 0.50
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AB11-2A (138mm) Aragonite 0.052520000000 0.089840000000 1.00 0.30 1/1/2021 12.50 0.50
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AB11-2B (270mm) Aragonite 0.050150000000 0.097750000000 1.00 0.30 1/1/2021 12.50 0.50
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AB13-2A (34mm) Aragonite 0.050150000000 0.081240000000 2.00 0.30 1/1/2021 12.50 0.50
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AB13-2B (85.5mm) Aragonite 0.058380000000 0.076400000000 2.00 0.30 1/1/2021 12.50 0.50
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AB13-2C (130mm) Aragonite 0.050430000000 0.081990000000 2.00 0.30 1/1/2021 12.50 0.50
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AB13-2D (177mm) Aragonite 0.057130000000 0.104260000000 2.00 0.30 1/1/2021 12.50 0.50
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AB13-2E (229mm) Aragonite 0.048520000000 0.083110000000 2.00 0.30 1/1/2021 12.50 0.50
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AB13-2F (265mm) Aragonite 0.054670000000 0.080880000000 2.00 0.30 1/1/2021 12.50 0.50
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CC5A Aragonite 0.002460000000 0.099890000000 1.00 0.30 1/1/2021 12.50 0.50
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ANALYSIS NUMBERS AND DATE OF ANALYSIS
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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
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Procedural blank 526 Analysed on Monday March 14 2022 at 11:32 592 Analysed on Wednesday March 16 2022 at 11:45 524 Analysed on Monday March 14 2022 at 11:24 523 Analysed on Monday March 14 2022 at 11:22 524 Analysed on Monday March 14 2022 at 11:24 529 Analysed on Monday March 14 2022 at 11:43 530 Analysed on Monday March 14 2022 at 11:44 590 Analysed on Wednesday March 16 2022 at 11:34 594 Analysed on Wednesday March 16 2022 at 11:56
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AB11-2A (138mm) 532 Analysed on Monday March 14 2022 at 11:53 596 Analysed on Wednesday March 16 2022 at 12:07 530 Analysed on Monday March 14 2022 at 11:44 529 Analysed on Monday March 14 2022 at 11:43 530 Analysed on Monday March 14 2022 at 11:44 535 Analysed on Monday March 14 2022 at 12:04 536 Analysed on Monday March 14 2022 at 12:05 594 Analysed on Wednesday March 16 2022 at 11:56 598 Analysed on Wednesday March 16 2022 at 12:18
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AB11-2B (270mm) 538 Analysed on Monday March 14 2022 at 12:13 600 Analysed on Wednesday March 16 2022 at 12:29 536 Analysed on Monday March 14 2022 at 12:05 535 Analysed on Monday March 14 2022 at 12:04 536 Analysed on Monday March 14 2022 at 12:05 541 Analysed on Monday March 14 2022 at 12:24 542 Analysed on Monday March 14 2022 at 12:26 598 Analysed on Wednesday March 16 2022 at 12:18 602 Analysed on Wednesday March 16 2022 at 12:40
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AB13-2A (34mm) 544 Analysed on Monday March 14 2022 at 12:34 604 Analysed on Wednesday March 16 2022 at 12:51 542 Analysed on Monday March 14 2022 at 12:26 541 Analysed on Monday March 14 2022 at 12:24 542 Analysed on Monday March 14 2022 at 12:26 547 Analysed on Monday March 14 2022 at 12:45 548 Analysed on Monday March 14 2022 at 12:46 602 Analysed on Wednesday March 16 2022 at 12:40 606 Analysed on Wednesday March 16 2022 at 13:02
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AB13-2B (85.5mm) 550 Analysed on Monday March 14 2022 at 12:55 608 Analysed on Wednesday March 16 2022 at 13:13 548 Analysed on Monday March 14 2022 at 12:46 547 Analysed on Monday March 14 2022 at 12:45 548 Analysed on Monday March 14 2022 at 12:46 553 Analysed on Monday March 14 2022 at 13:06 554 Analysed on Monday March 14 2022 at 13:07 606 Analysed on Wednesday March 16 2022 at 13:02 610 Analysed on Wednesday March 16 2022 at 13:25
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AB13-2C (130mm) 556 Analysed on Monday March 14 2022 at 13:15 612 Analysed on Wednesday March 16 2022 at 13:35 554 Analysed on Monday March 14 2022 at 13:07 553 Analysed on Monday March 14 2022 at 13:06 554 Analysed on Monday March 14 2022 at 13:07 559 Analysed on Monday March 14 2022 at 13:26 560 Analysed on Monday March 14 2022 at 13:27 610 Analysed on Wednesday March 16 2022 at 13:25 614 Analysed on Wednesday March 16 2022 at 13:47
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AB13-2D (177mm) 562 Analysed on Monday March 14 2022 at 13:36 616 Analysed on Wednesday March 16 2022 at 13:57 560 Analysed on Monday March 14 2022 at 13:27 559 Analysed on Monday March 14 2022 at 13:26 560 Analysed on Monday March 14 2022 at 13:27 565 Analysed on Monday March 14 2022 at 13:47 566 Analysed on Monday March 14 2022 at 13:48 614 Analysed on Wednesday March 16 2022 at 13:47 618 Analysed on Wednesday March 16 2022 at 14:09
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AB13-2E (229mm) 568 Analysed on Monday March 14 2022 at 13:56 620 Analysed on Wednesday March 16 2022 at 14:19 566 Analysed on Monday March 14 2022 at 13:48 565 Analysed on Monday March 14 2022 at 13:47 566 Analysed on Monday March 14 2022 at 13:48 571 Analysed on Monday March 14 2022 at 14:07 572 Analysed on Monday March 14 2022 at 14:09 618 Analysed on Wednesday March 16 2022 at 14:09 622 Analysed on Wednesday March 16 2022 at 14:31
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AB13-2F (265mm) 574 Analysed on Monday March 14 2022 at 14:17 624 Analysed on Wednesday March 16 2022 at 14:41 572 Analysed on Monday March 14 2022 at 14:09 571 Analysed on Monday March 14 2022 at 14:07 572 Analysed on Monday March 14 2022 at 14:09 577 Analysed on Monday March 14 2022 at 14:28 578 Analysed on Monday March 14 2022 at 14:29 622 Analysed on Wednesday March 16 2022 at 14:31 626 Analysed on Wednesday March 16 2022 at 14:53
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SAMPLE RAW INTENSITIES, IMPACT OF BLANK CORRECTION, STANDARD FLAGS, AND PERCENT YIELD
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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
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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 (%)
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Procedural blank 0.003490000000 0.032500000000 7.290000000000 0.001240000000 1.630000000000 0.007632466496 4.4248 1.2400 91.91 45.13
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AB11-2A (138mm) 13.800000000000 93.900000000000 1290.000000000000 13.500000000000 1.270000000000 2.107286154762 0.02 -0.00 0.76 0.75 2.3202 67.92 122.34
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AB11-2B (270mm) 44.800000000000 92.600000000000 5310.000000000000 15.000000000000 1.170000000000 1.887093416276 0.00 -0.00 0.18 1.38 4.4053 59.57 121.83
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AB13-2A (34mm) 24.200000000000 44.800000000000 2320.000000000000 8.950000000000 2.050000000000 1.810920370518 0.01 -0.00 0.31 0.87 2.3256 8.9500 68.53 86.30
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AB13-2B (85.5mm) 38.400000000000 40.400000000000 5040.000000000000 9.920000000000 1.030000000000 1.747278690283 0.00 -0.00 0.16 1.09 2.3202 9.9200 65.19 101.48
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AB13-2C (130mm) 28.300000000000 48.000000000000 4660.000000000000 14.200000000000 1.280000000000 1.769214305268 0.00 -0.00 0.24 9.78 71.61 134.47
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AB13-2D (177mm) 32.500000000000 62.600000000000 3280.000000000000 10.800000000000 1.580000000000 1.733078189975 0.00 -0.00 0.20 16.67 2.3256 74.03 78.35
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AB13-2E (229mm) 39.600000000000 55.600000000000 6030.000000000000 13.500000000000 1.680000000000 1.810762197909 0.00 -0.00 0.17 12.72 2.3202 82.48 121.56
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AB13-2F (265mm) 34.000000000000 53.300000000000 3800.000000000000 8.980000000000 0.950000000000 1.825870360257 0.00 -0.00 0.19 2.36 2.3256 8.9800 80.61 82.56
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CC5A 27.200000000000 131.000000000000 13900.000000000000 11.700000000000 1.380000000000 1.027207133036 0.01 0.00 0.05 1.24 80.53 86.18
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PROCEDURAL BLANK MASSES
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230Th (fg) 232Th (pg) 234U (fg) 238U (pg)
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0.099816626680 1.249015975388 3.872064264579 0.258137617639
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FINAL SAMPLE CONCENTRATIONS AND AGES
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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)
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ng/g pg/g per mille activity ppm atomic yr yr per mille yr BP
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AB11-2A (138mm) 415.817328008941 8.316380197573 3185.946324533482 64.888104900869 3.349058299775 1.678603612631 0.037712243587 0.000393218922 78.149172388060 0.853860216757 4177.535909811962 44.977243912676 3946.538121710221 115.819809395722 3.386566483217 1.697403697762 3875.538121710221 115.819809395722
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AB11-2B (270mm) 1560.356777180517 31.209887421038 1803.328724586832 38.243160748409 3.732119846162 1.397418644233 0.044022479851 0.000212992602 604.785539562859 5.017700405424 4890.507196200238 25.194777145922 4855.708666533107 18.743057645910 3.783613477593 1.416699432725 4784.708666533107 25.194777145922
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AB13-2A (34mm) 1446.859499901680 28.939340449515 2877.746331976602 59.017545644397 7.718416905816 1.562339644709 0.028569459971 0.000234548813 228.062440063739 2.087470895153 3136.058665596841 26.584917344520 3076.402236818595 30.229751709735 7.785718332490 1.575962744975 3005.402236818595 30.229751709735
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AB13-2B (85.5mm) 2056.547503836019 41.144915817757 1958.380320043403 40.676666371995 8.366016248576 1.357608517567 0.032104274974 0.000202912495 535.281778783764 4.383232863333 3528.088701831453 23.176142876870 3499.549501027720 15.061042672563 8.449047860786 1.371082650782 3428.549501027720 23.176142876870
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AB13-2C (130mm) 1586.597643407145 31.736778395277 231.440909581643 13.376629005446 8.782822003299 1.457978887884 0.033181921595 0.000180122958 3611.653639039943 196.681628124269 3646.973539706283 20.839238805954 3642.604097015635 5.807353831133 8.873571973343 1.473043704568 3571.604097015635 20.839238805954
69+
AB13-2D (177mm) 1566.604049702812 31.334339671947 110.745204214961 11.297775369242 7.210664135050 1.498611694863 0.035117885235 0.000214215310 7887.521497584631 790.337473727639 3869.726822656143 24.739798857957 3867.606039548901 5.984077356655 7.289796848798 1.515058064311 3796.606039548901 24.739798857957
70+
AB13-2E (229mm) 2017.322569592297 40.351810849770 179.026686892142 13.525966032399 5.971825883975 1.454762447044 0.037630718826 0.000204982651 6732.524946309963 491.690106860515 4157.188750064968 23.890198286289 4154.523043770819 6.301989540761 6.042253506354 1.471918922415 4083.523043770819 23.890198286289
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AB13-2F (265mm) 1558.777402606721 31.180640558267 956.995347195426 22.402115447051 4.843185702549 1.461593669031 0.040009962325 0.000248046076 1034.713943495397 13.961940889086 4430.529966030863 28.802890113785 4412.066266962061 11.343593107020 4.903865763351 1.479905920197 4341.066266962061 28.802890113785
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CC5A 13967.703971238627 279.358182239587 41012.061039206928 860.252109828380 926.915603992874 1.321037189851 0.343495206689 0.001184390678 1857.428017852668 12.812811298311 21080.265889933980 80.583054800448 21035.526783153982 27.455225419981 983.606628781645 1.403903179427 20964.526783153982 80.583054800448

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