Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction LAST UPDATE: 02/2004 (Original Receipt by WDC Paleo) CONTRIBUTOR: Konrad Hughen, Woods Hole Oceanographic Institution IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-006 SUGGESTED DATA CITATION: Hughen, K., et al., 2004, Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction, IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2004-006. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Hughen, K., S. Lehman, J. Southon, J. Overpeck, O. Marchal, C. Herring, and J. Turnbull. 2004. 14C Activity and Global Carbon Cycle Changes over the Past 50,000 Years. Science, Volume 303, Number 5655, 9 January 2004. ABSTRACT: A series of 14C measurements in Ocean Drilling Program cores from the tropical Cariaco Basin, which have been correlated to the annual-layer counted chronology for the Greenland Ice Sheet Project 2 (GISP2) ice core, provides a high-resolution calibration of the radiocarbon time scale back to 50,000 years before the present. Independent radiometric dating of events correlated to GISP2 suggests that the calibration is accurate. Reconstructed 14C activities varied substantially during the last glacial period, including sharp peaks synchronous with the Laschamp and Mono Lake geomagnetic field intensity minimal and cosmogenic nuclide peaks in ice cores and marine sediments. Simulations with a geochemical box model suggest that much of the variability can be explained by geomagnetically modulated changes in 14C production rate together with plausible changes in deep-ocean ventilation and the global carbon cycle during glaciation. GEOGRAPHIC REGION: Tropical Atlantic PERIOD OF RECORD: 50 kyr BP - present DESCRIPTION: Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction. Accelerator Mass Spectrometry (AMS) 14C data from planktonic foraminifera from Ocean Drilling Program Site 1002, cores 1002D and 1002E, Cariaco Basin (10 deg. 42.73'N, 65 deg. 10.18'W, 893m. depth) FUNDING SOURCES: This work was supported by NSF (OCE-0117356), Lawrence Livermore National Laboratory (LDRD-97-ERI-009), and the U.S. Department of Energy (W-7405-Eng-48). DATA: Tab-delimited data table S1. Site 1002 foraminiferal 14C data Table S1. Lab Identification # Species Depth (mbsf) GISP2 Calendar age (years BP) Cal age ± (GISP2 count error only) Total Cal age ± (includes correlation error) 14C age (years BP) (uncorrected) 14C age (years BP) (reservoir corrected) 14C ± (lab error only) Total 14C ± (includes reservoir age error) D14C (‰) D14C ± ( due to 14C error only) D14C+ (due to cal error only) D14C- (due to cal error only) Comments NSRL-13105 bulloides 0.063 398 7.96 180 605 185 30 36 25.43 4.60 48.03 3.32 NSRL-13106 bulloides 0.413 837 16.74 181 1340 920 30 36 -13.19 4.43 8.62 -34.54 CAMS-52110 bulloides 0.513 1121 22.42 181 1580 1160 50 54 -8.77 6.65 13.22 -30.28 NSRL-13107 bulloides 0.563 1259 25.18 182 1700 1280 30 36 -7.03 4.46 15.05 -28.62 CAMS-52111 bulloides 1.013 2528 50.56 187 2720 2300 40 45 19.67 5.68 42.99 -3.14 CAMS-52112 bulloides 1.513 3940 78.80 196 3650 3230 30 36 77.35 4.84 103.26 52.04 CAMS-52113 bulloides 2.013 5350 107.00 209 4840 4420 40 45 101.77 6.13 130.04 74.22 CAMS-52114 bulloides 2.513 6760 135.20 225 6320 5900 40 45 86.80 6.05 116.80 57.61 CAMS-52115 bulloides 3.013 8173 163.46 243 7660 7240 40 45 91.28 6.08 123.85 59.65 NSRL-13048 bulloides 3.263 8838 176.76 252 8440 8020 55 59 73.25 7.82 106.50 40.99 CAMS-52116 bulloides 3.513 9473 189.46 261 9040 8620 40 45 75.52 5.99 110.07 42.06 NSRL-13049 bulloides 3.763 10109 202.18 271 9700 9280 45 49 69.91 6.56 105.53 35.45 CAMS-52117 bulloides 4.013 10746 214.92 280 10060 9640 40 45 104.97 6.15 143.08 68.13 NSRL-13050 bulloides 4.263 11380 227.60 290 10440 10020 45 49 137.92 6.98 178.57 98.67 CAMS-52118 bulloides 4.463 11891 237.82 298 10200 9780 40 45 247.19 6.94 293.01 202.99 NSRL-13051 ruber 4.713 12613 252.26 310 10650 10230 55 59 286.86 9.38 336.02 239.52 NSRL-12273 bulloides 4.813 12908 258.16 315 11900 11480 70 73 141.43 10.34 185.72 98.80 NSRL-13052 bulloides 4.913 13178 263.56 319 12310 11890 50 54 120.64 7.51 164.76 78.20 "CAMS-52119, CAMS-53659" "bulloides, ruber" 5.013 13478 269.56 324 12170 11750 57 60 182.49 8.89 229.77 137.02 average NSRL-13053 bulloides 5.113 13705 274.10 328 12530 12110 55 59 162.14 8.47 209.17 116.95 NSRL-13054 bulloides 5.213 13966 279.32 332 12590 12170 55 59 190.49 8.67 239.32 143.59 NSRL-12274 bulloides 5.313 14227 284.54 337 12800 12380 65 68 196.97 10.13 246.73 149.20 NSRL-13055 bulloides 5.413 14484 289.68 341 12700 12280 55 59 250.24 9.11 302.89 199.71 CAMS-59349 ruber 5.463 14609 292.18 343 12890 12470 100 102 239.61 15.74 292.15 189.21 "CAMS-52120, CAMS-53660" "bulloides, ruber" 5.513 14740 294.80 345 12910 12490 99 101 256.28 15.80 309.88 204.87 average CAMS-59350 ruber 5.563 14870 297.40 348 12890 12470 40 45 279.37 7.12 334.32 226.69 CAMS-59351 ruber 5.613 14970 299.40 349 13030 12610 40 45 272.57 7.08 327.50 219.92 CAMS-59352 ruber 5.663 15058 301.16 351 13090 12670 40 45 276.62 7.11 331.96 223.57 CAMS-59353 ruber 5.713 15146 302.92 352 13160 12740 40 45 279.09 7.12 334.78 225.71 CAMS-59354 ruber 5.763 15233 304.66 354 13320 12900 60 63 267.13 9.98 322.54 214.03 CAMS-59355 ruber 5.813 15321 306.42 355 13260 12840 40 45 290.29 7.18 346.96 236.00 CAMS-60321 ruber 5.863 15406 308.12 357 13350 12930 40 45 289.10 7.18 345.96 234.64 CAMS-59356 ruber 5.913 15491 309.82 358 13380 12960 40 45 297.57 7.22 355.04 242.53 CAMS-59357 ruber 5.963 15579 311.58 360 13510 13090 40 45 290.40 7.18 347.81 235.44 CAMS-53785 ruber 6.013 15666 313.32 361 13460 13040 40 45 312.19 7.31 370.82 256.07 NSRL-13056 bulloides 6.063 15754 315.08 363 13700 13280 60 63 287.20 10.13 344.96 231.92 CAMS-59358 ruber 6.113 15842 316.84 364 13510 13090 40 45 332.11 7.42 392.14 274.67 NSRL-13057 ruber 6.263 16100 322.00 369 13200 12780 130 132 428.41 23.39 493.60 366.08 CAMS-59360 ruber 6.313 16160 323.20 370 13500 13080 40 45 386.08 7.72 449.51 325.42 NSRL-13058 bulloides 6.363 16219 324.38 371 13800 13380 80 82 344.83 13.81 406.55 285.82 CAMS-59361 ruber 6.413 16280 325.60 372 13590 13170 40 45 390.67 7.74 454.69 329.48 NSRL-13059 bulloides 6.463 16342 326.84 373 13850 13430 60 63 356.52 10.68 419.15 296.65 CAMS-53786 ruber 6.513 16403 328.06 374 13480 13060 50 54 430.98 9.59 497.24 367.65 NSRL-13060 mixed 6.563 16465 329.30 375 13250 12830 65 68 483.63 12.56 552.53 417.79 CAMS-59362 ruber 6.613 16526 330.52 376 13740 13320 50 54 406.17 9.43 471.67 343.59 CAMS-59363 ruber 6.713 16649 332.98 379 13740 13320 40 45 427.25 7.95 494.12 363.38 NSRL-13062 bulloides 6.763 16709 334.18 380 13800 13380 65 68 426.95 12.08 493.99 362.91 CAMS-59364 ruber 6.813 16768 335.36 381 13790 13370 40 45 438.96 8.01 506.76 374.21 CAMS-59365 ruber 6.913 16891 337.82 383 13910 13490 40 45 438.87 8.01 507.06 373.77 NSRL-13063 bulloides 6.963 16953 339.06 384 14000 13580 60 63 433.55 11.29 501.69 368.51 CAMS-53787 ruber 7.013 17014 340.28 385 14070 13650 60 63 431.64 11.27 499.88 366.50 NSRL-13064 bulloides 7.063 17076 341.52 386 14500 14080 65 68 367.24 11.58 432.60 304.86 NSRL-13065 bulloides 7.163 17207 344.14 388 14650 14230 70 73 363.38 12.36 428.96 300.81 NSRL-12275 bulloides 7.263 17370 347.40 391 14400 13980 70 73 434.48 13.00 504.01 368.17 NSRL-13066 bulloides 7.363 17539 350.78 394 14750 14330 85 87 401.69 15.24 470.16 336.41 NSRL-13067 bulloides 7.463 17707 354.14 397 15100 14680 70 73 369.48 12.41 436.89 305.22 "CAMS-52121, CAMS-54468" "bulloides, bulloides" 7.513 17792 355.84 399 14870 14450 170 171 423.82 30.34 494.18 356.77 average NSRL-13068 bulloides 7.613 17962 359.24 402 15750 15330 95 97 302.59 15.74 367.47 240.80 NSRL-13069 bulloides 7.713 18124 362.48 405 16150 15730 70 73 263.84 11.45 327.26 203.46 NSRL-12276 bulloides 7.813 18293 365.86 408 15200 14780 75 78 451.89 14.03 525.29 382.01 NSRL-13070 bulloides 7.913 18462 369.24 411 15800 15380 95 97 375.22 16.62 445.28 308.56 "CAMS-52770, CAMS-52122, CAMS-53788" "bulloides, bulloides, ruber" 8.027 18653 373.06 414 16017 15597 65 68 369.91 11.60 440.30 302.96 average NSRL-13071 bulloides 8.113 18797 375.94 417 16150 15730 70 73 371.04 12.43 441.93 303.62 NSRL-13072 bulloides 8.213 18963 379.26 420 16500 16080 95 97 339.20 16.19 408.97 272.90 NSRL-12277 bulloides 8.313 19132 382.64 423 15700 15280 100 102 510.00 19.17 589.24 434.70 NSRL-13073 bulloides 8.413 19300 386.00 426 16800 16380 90 92 343.79 15.42 414.84 276.31 "CAMS-53789, CAMS-52771" "bulloides, ruber" 8.513 19469 389.38 429 16790 16370 50 54 373.25 9.21 446.39 303.81 average NSRL-13074 bulloides 8.563 19551 391.02 430 17000 16580 90 92 351.15 15.51 423.37 282.60 NSRL-13075 bulloides 8.663 19717 394.34 433 17150 16730 85 87 353.06 14.71 425.90 283.94 NSRL-12278 bulloides 8.763 19885 397.70 437 17050 16630 80 82 398.13 14.35 473.94 326.22 NSRL-13076 bulloides 8.863 20054 401.08 440 17600 17180 90 92 332.57 15.29 405.35 263.56 NSRL-13077 bulloides 8.963 20222 404.44 443 18200 17780 100 102 262.05 16.02 331.48 196.25 "CAMS-52124, CAMS-53790" "bulloides, bulloides" 9.013 20305 406.10 444 17700 17280 99 101 356.66 17.06 431.55 285.69 average NSRL-13078 bulloides 9.063 20386 407.72 446 18100 17680 130 132 303.47 21.34 375.67 235.06 NSRL-13079 bulloides 9.163 20554 411.08 449 18550 18130 140 141 257.76 22.14 327.92 191.30 NSRL-12279 bulloides 9.263 20723 414.46 452 17850 17430 110 112 400.62 19.49 479.30 326.12 UCIAMS-3443 bulloides 9.363 20891 417.81 455 17960 17540 90 92 409.86 16.18 489.62 334.38 "CAMS-52125, CAMS-53791" "bulloides, ruber" 9.513 21142 422.84 460 18315 17895 92 94 390.57 16.30 470.06 315.37 average UCIAMS-3444 bulloides 9.613 21312 426.24 463 18560 18140 80 82 376.82 14.13 456.07 301.88 NSRL-12280 bulloides 9.763 21567 431.34 467 18850 18430 100 102 369.60 17.39 449.27 294.32 UCIAMS-3445 bulloides + ruber 9.863 21745 434.89 471 18680 18260 60 63 429.27 11.25 513.01 350.17 "CAMS-52126, CAMS-53792" "bulloides, ruber" 10.013 22011 440.22 476 19080 18660 240 241 404.38 42.11 487.54 325.87 average NSRL-13137 bulloides 10.063 22100 442.00 477 19450 19030 100 102 355.68 17.21 436.24 279.63 NSRL-13138 bulloides 10.163 22271 445.42 480 19550 19130 110 112 366.89 19.02 448.68 289.72 NSRL-12281 bulloides 10.263 22448 448.96 484 19600 19180 90 92 387.81 15.93 471.43 308.93 NSRL-13139 bulloides 10.363 22627 452.54 487 19200 18780 110 112 490.59 20.75 581.04 405.31 NSRL-13140 bulloides 10.463 22804 456.08 490 20100 19680 95 97 361.44 16.45 444.63 283.04 "CAMS-52127, CAMS-53793" "bulloides, bulloides" 10.513 22893 457.86 492 20205 19785 64 67 358.30 11.34 441.59 279.83 average NSRL-13141 bulloides 10.563 22979 459.58 494 20400 19980 130 132 339.59 21.93 422.01 261.95 NSRL-13142 bulloides 10.663 23154 463.08 497 20200 19780 95 97 402.75 16.95 489.63 320.93 NSRL-12282 bulloides 10.763 23331 466.62 500 20600 20180 100 102 363.49 17.31 448.52 283.45 NSRL-13080 bulloides 10.863 23509 470.18 503 20800 20380 95 97 358.91 16.42 444.24 278.62 NSRL-13081 bulloides 10.963 23767 475.34 508 21250 20830 120 122 325.61 20.08 409.67 246.56 CAMS-52754 bulloides 11.013 23896 477.92 511 20910 20490 60 63 404.67 11.06 494.18 320.52 NSRL-13082 bulloides 11.063 24024 480.48 513 21270 20850 130 132 364.06 22.34 451.41 281.98 NSRL-13083 bulloides 11.163 24272 485.44 518 21810 21390 110 112 314.22 18.29 399.16 234.44 NSRL-12283 bulloides 11.263 24488 489.76 522 21510 21090 100 102 400.34 17.78 491.58 314.69 NSRL-13084 bulloides 11.413 24810 496.20 528 21700 21280 120 122 421.93 21.54 515.68 333.98 CAMS-52755 bulloides 11.513 25018 500.36 532 21890 21470 70 73 424.08 12.91 518.69 335.36 UCIAMS-3446 bulloides 11.613 25234 504.67 536 22320 21900 110 112 385.52 19.28 478.29 298.57 NSRL-12284 bulloides 11.763 25557 511.14 542 22670 22250 120 122 379.37 20.89 472.81 291.85 UCIAMS-3449 bulloides 11.863 25769 515.39 546 22440 22020 120 122 456.37 22.06 555.79 363.31 CAMS-52756 bulloides 12.013 26088 521.76 552 22760 22340 160 161 454.48 29.20 554.91 360.55 UCIAMS-3450 bulloides 12.113 26304 526.07 556 22880 22460 160 161 470.78 29.52 573.10 375.11 NSRL-12285 bulloides 12.263 26627 532.54 562 23300 22880 130 132 451.54 23.77 553.68 356.12 "UCIAMS-3558, UCIAMS-3451" "bulloides, bulloides" 12.363 26733 534.66 564 23675 23255 375 376 450.31 65.62 552.74 354.64 average NSRL-13108 bulloides 12.475 27080 541.60 571 23800 23380 150 151 440.77 27.14 543.75 344.66 CAMS-52757 bulloides 12.513 27158 543.16 572 23750 23330 70 73 463.51 13.26 568.40 365.64 NSRL-13109 bulloides 12.56 27259 545.18 574 24100 23680 120 122 418.34 21.48 520.34 323.18 NSRL-13110 bulloides 12.65 27439 548.78 578 24400 23980 170 171 396.42 29.76 497.47 302.20 "NSRL-13111, NSRL-12286" "bulloides, bulloides" 12.73 27648 552.96 582 24400 23980 167 168 432.18 29.99 536.55 334.90 D-E average NSRL-13112 bulloides 12.85 27867 557.34 586 24400 23980 140 141 470.62 25.89 578.59 370.04 NSRL-13113 bulloides 12.96 28101 562.02 590 24700 24280 150 151 457.39 27.46 565.23 356.98 "CAMS-52758, NSRL-13114" "bulloides, bulloides" 13.013 28223 564.45 592 24560 24160 107 109 501.22 20.34 612.76 397.40 D-E average CAMS-56891 bulloides 13.063 28325 566.50 594 24490 24070 70 73 537.08 13.93 651.67 430.44 CAMS-59627 bulloides 13.113 28439 568.78 597 24830 24410 60 63 493.84 11.76 605.62 389.83 NSRL-13115 bulloides 13.16 28547 570.94 599 25100 24680 140 141 463.46 25.77 573.36 361.23 CAMS-59628 bulloides 13.213 28670 573.40 601 24840 24420 60 63 534.26 12.08 649.95 426.68 NSRL-13116 bulloides 13.25 28754 575.08 603 25600 25180 130 132 410.01 23.09 516.63 310.89 CAMS-59629 bulloides 13.313 28893 577.86 605 25480 25060 140 141 455.50 25.63 566.06 352.75 "NSRL-13117, CAMS-56893" "bulloides, bulloides" 13.34 28988 579.75 607 25115 24695 615 615 540.67 118.13 658.06 431.59 D-E average "CAMS-59630, NSRL-13118" "bulloides, bulloides" 13.413 29143 582.86 610 25605 25185 205 206 477.02 37.88 590.13 371.96 D-E average CAMS-56894 bulloides 13.463 29239 584.78 612 25520 25100 150 151 510.17 28.45 626.18 402.44 CAMS-52759 bulloides 13.513 29355 587.10 614 26010 25590 210 211 440.88 37.84 551.99 337.73 NSRL-13119 bulloides 13.54 29415 588.30 615 26400 25980 140 141 382.60 24.34 489.41 283.44 CAMS-59631 bulloides 13.563 29498 589.96 617 26000 25580 170 171 467.85 31.28 581.56 362.32 CAMS-56895 bulloides 13.613 29566 591.32 618 25610 25190 150 151 553.60 29.27 674.21 441.67 "NSRL-13120, CAMS-59632" "bulloides, bulloides" 13.66 29622 592.44 619 26360 25940 180 181 424.73 32.12 535.54 321.92 D-E average CAMS-56896 bulloides 13.713 29683 593.66 620 26600 26180 180 181 393.03 31.41 501.59 292.33 NSRL-13121 bulloides 13.77 29750 595.00 622 26300 25880 140 141 457.81 25.67 571.65 352.21 NSRL-13122 bulloides 13.88 29879 597.58 624 26300 25880 180 181 480.74 33.39 596.85 373.07 NSRL-13123 bulloides 13.98 29999 599.98 626 27300 26880 160 161 326.53 26.63 430.95 229.73 NSRL-13124 bulloides 14 30023 600.46 627 26400 25980 140 141 488.11 26.20 605.34 379.45 NSRL-13125 bulloides 14.065 30098 601.96 628 26900 26480 150 151 411.06 26.58 522.48 307.79 NSRL-13126 bulloides 14.1 30142 602.84 629 26800 26380 170 171 436.36 30.61 549.93 331.10 NSRL-13127 bulloides 14.14 30185 603.70 630 27600 27180 210 211 306.98 34.33 410.47 211.09 NSRL-13128 bulloides 14.18 30217 604.34 631 27500 27080 230 231 328.49 38.19 433.78 230.92 UCIAMS-3461 bulloides 14.2 30423 608.46 635 28240 27820 210 211 242.14 32.62 341.24 150.37 NSRL-13129 bulloides 14.23 30629 612.58 638 28300 27880 230 231 264.01 36.33 365.50 170.06 "UCIAMS-3462, UCIAMS-3560" "bulloides, ruber" 14.26 30835 616.70 642 27965 27545 277 277 351.09 46.65 460.27 250.07 average NSRL-13130 bulloides 14.28 31041 620.82 646 28400 27980 180 181 312.16 29.59 418.88 213.47 UCIAMS-3463 bulloides 14.3 31247 624.94 650 28700 28280 210 211 295.96 34.04 402.02 197.91 NSRL-13131 bulloides 14.32 31453 629.06 654 28600 28180 190 191 345.30 32.00 456.10 242.93 UCIAMS-3464 bulloides + ruber 14.37 31659 633.18 658 28480 28060 230 231 400.00 40.24 516.03 292.85 NSRL-13132 mixed 14.42 31865 637.30 662 28400 27980 180 181 449.69 32.69 570.60 338.09 UCIAMS-2545 mixed 14.475 32071 641.42 666 29010 28590 140 141 377.58 24.25 493.19 270.93 CAMS-56903 bulloides 14.463 32208 644.16 669 28500 28080 270 271 492.41 50.31 618.17 376.42 "NSRL-13133, CAMS-52761" mixed 14.5 32293 645.86 670 28425 28005 742 742 521.98 140.83 650.56 403.41 D-E average UCIAMS-2546 bulloides 14.53 32352 647.04 672 28710 28290 130 132 479.45 24.23 604.65 364.01 "NSRL-13134, CAMS-59640" "bulloides, bulloides" 14.56 32442 648.84 673 28885 28465 262 263 463.41 47.88 587.59 348.94 D-E average "CAMS-56904, NSRL-13135" "bulloides, bulloides" 14.613 32592 651.84 676 28985 28565 143 144 471.77 26.46 597.22 356.17 D-E average CAMS-59641 bulloides 14.663 32731 654.62 679 28990 28570 80 82 495.79 15.36 623.82 377.86 "NSRL-13136, CAMS-56905" "bulloides, bulloides" 14.7 32855 657.10 681 29140 28720 199 200 490.31 37.11 618.33 372.41 D-E average CAMS-59642 bulloides 14.763 33018 660.36 684 29390 28970 80 82 473.41 15.13 600.59 356.33 CAMS-56906 bulloides 14.813 33161 663.22 687 29590 29170 240 241 462.25 43.85 589.00 345.62 CAMS-59643 bulloides 14.863 33326 666.52 690 29410 28990 110 112 525.53 21.23 658.41 403.31 CAMS-56907 bulloides 14.913 33504 670.08 694 29680 29260 110 112 507.22 20.98 639.18 385.88 CAMS-59644 bulloides 14.963 33673 673.46 697 29690 29270 170 171 536.43 32.74 671.61 412.19 CAMS-52762 bulloides 15.013 33800 676.00 700 29450 29030 120 122 607.53 24.35 749.49 477.10 UCIAMS-2525 bulloides 15.113 34050 681.00 704 29940 29520 150 151 558.84 29.37 697.49 431.52 UCIAMS-2526 bulloides 15.163 34149 682.97 706 30030 29610 160 161 559.97 31.32 699.11 432.23 NSRL-12287 bulloides 15.263 34425 688.50 712 30030 29610 210 211 613.01 42.36 758.01 479.97 UCIAMS-2527 bulloides + ruber 15.363 34543 690.86 714 30530 30110 170 171 537.46 32.76 676.13 410.26 UCIAMS-2528 mixed 15.463 34661 693.22 716 30800 30380 170 171 508.01 32.14 644.49 382.87 CAMS-53794 bulloides 15.513 34720 694.40 717 30900 30480 320 321 500.03 59.89 636.00 375.35 UCIAMS-2531 mixed 15.663 34889 697.77 721 30460 30040 170 171 617.13 34.46 764.41 482.13 NSRL-12288 mixed 15.763 35001 700.02 723 31750 31330 250 251 396.07 43.59 523.62 279.19 UCIAMS-2532 bulloides 15.863 35115 702.30 725 31580 31160 180 181 445.73 32.60 578.24 324.34 CAMS-52763 bulloides 16.013 35286 705.72 728 31440 31020 140 141 501.89 26.44 640.21 375.24 UCIAMS-2533 bulloides 16.163 35455 709.10 732 31750 31330 180 181 474.92 33.26 611.39 350.00 NSRL-12289 bulloides 16.263 35568 711.36 734 31880 31460 260 261 471.18 47.77 607.73 346.22 UCIAMS-2534 bulloides 16.363 35680 713.61 736 32090 31670 240 241 452.83 43.56 588.10 329.09 UCIAMS-2537 bulloides + ruber 16.463 35793 715.86 738 32330 31910 200 201 429.37 35.77 562.87 307.28 CAMS-53795 bulloides 16.513 35849 716.98 739 31310 30890 290 291 633.97 59.14 786.81 494.20 UCIAMS-2538 bulloides + ruber 16.563 35971 719.42 742 32530 32110 210 211 424.57 37.41 558.27 302.34 UCIAMS-2539 mixed 16.663 36214 724.29 746 32560 32140 220 221 461.70 40.20 599.80 335.53 NSRL-12290 bulloides 16.763 36458 729.16 751 32640 32220 280 281 490.50 52.10 632.25 361.06 UCIAMS-3452 mixed 16.813 36594 731.88 754 33140 32720 310 311 423.82 55.07 559.73 299.75 UCIAMS-2540 mixed 16.913 36867 737.33 759 33260 32840 220 221 449.69 39.87 589.09 322.53 CAMS-52764 bulloides 17.013 37139 742.78 764 33020 32600 170 171 543.70 32.90 693.22 407.38 UCIAMS-3455 mixed 17.063 37275 745.50 767 32150 31730 330 331 748.85 72.00 918.85 593.91 UCIAMS-2543 bulloides + ruber 17.163 37548 750.95 772 33360 32940 240 241 554.70 46.62 706.92 416.05 NSRL-12291 bulloides + ruber 17.263 37820 756.40 778 33700 33280 280 281 540.19 53.83 692.08 401.94 UCIAMS-3456 bulloides + ruber 17.313 37958 759.16 780 33260 32840 320 321 654.33 66.05 818.07 505.34 UCIAMS-2544 bulloides 17.413 38235 764.69 786 33810 33390 240 241 597.38 47.90 756.62 452.57 CAMS-52765 bulloides 17.513 38511 770.22 791 33920 33500 180 181 629.22 36.73 792.81 480.57 NSRL-13085 bulloides 17.613 38777 775.54 796 34400 33980 370 371 584.91 73.13 745.13 439.39 "UCIAMS-3457, UCIAMS-3559" "bulloides, ruber" 17.663 38901 778.02 799 33810 33390 506 506 731.47 109.24 907.07 572.04 average NSRL-12292 bulloides 17.763 39149 782.98 803 34100 33680 300 301 720.94 64.43 896.58 561.56 UCIAMS-3458 bulloides 17.813 39274 785.49 806 34340 33920 420 420 695.80 88.80 869.43 538.30 NSRL-12293 bulloides 17.913 39525 790.50 811 35010 34590 330 331 608.13 66.20 773.82 457.91 CAMS-52766 bulloides 18.013 39767 795.34 815 34620 34200 220 221 738.27 47.81 918.48 575.00 NSRL-12294 bulloides 18.113 40018 860.39 879 34640 34220 320 321 787.40 71.36 987.93 607.11 NSRL-12295 bulloides 18.263 40214 924.92 942 35100 34680 390 391 728.42 84.06 937.09 542.23 NSRL-12296 bulloides 18.413 40389 989.53 1006 36000 35580 380 381 578.29 74.79 782.47 397.49 CAMS-52767 bulloides 18.513 40508 1053.21 1068 35300 34880 210 211 746.96 45.88 987.98 535.15 NSRL-12297 bulloides 18.613 40628 1117.27 1132 35800 35380 370 371 665.54 76.85 909.88 452.46 NSRL-12298 bulloides 18.763 40805 1183.35 1197 36400 35980 400 400 579.12 78.76 825.13 366.26 NSRL-12299 bulloides 18.913 40985 1250.04 1263 37100 36680 500 500 479.20 92.20 723.34 269.64 CAMS-52768 bulloides 19.013 41101 1315.23 1327 36810 36390 260 261 555.24 50.50 826.15 324.53 NSRL-13086 bulloides 19.113 41220 1380.87 1393 37660 37240 490 490 419.37 86.71 679.77 199.33 NSRL-12300 bulloides 19.263 41394 1448.79 1460 38200 37780 430 430 355.32 72.66 617.10 135.92 NSRL-13087 bulloides 19.413 41574 1517.45 1528 39200 38780 520 520 223.02 79.28 471.33 16.62 CAMS-52769 bulloides 19.513 41716 1585.21 1595 38920 38500 350 351 288.34 56.24 562.58 62.23 NSRL-12301 bulloides 19.763 42071 1661.80 1672 40700 40280 680 680 77.57 91.37 319.04 -119.69 CAMS-53796 bulloides 20.013 42427 1739.51 1749 40490 40070 450 450 154.79 64.79 426.83 -65.39 NSRL-12302 bulloides 20.263 42788 1818.49 1827 41400 40980 640 640 77.13 85.95 343.59 -136.48 CAMS-53797 bulloides 20.513 43173 1899.61 1908 41480 41060 510 510 117.30 71.04 407.37 -112.99 NSRL-12303 bulloides 20.763 43576 1982.71 1991 41650 41230 650 650 148.55 93.08 461.29 -97.26 CAMS-53798 bulloides 21.013 43979 2067.01 2075 44110 43690 700 700 -112.18 77.49 141.10 -309.24 NSRL-12304 bulloides 21.263 44379 2152.38 2160 44200 43780 910 910 -78.55 104.63 196.57 -290.41 CAMS-53799 bulloides 21.513 44785 2239.25 2246 44640 44220 740 740 -83.75 84.55 202.34 -301.77 NSRL-12305 bulloides 21.763 45186 2400.51 2407 45700 45280 1100 1100 -157.11 115.80 127.80 -370.05 CAMS-53800 bulloides 22.013 45585 2564.16 2570 46340 45920 920 920 -183.17 93.78 114.72 -401.46 NSRL-12306 bulloides 22.263 46088 2736.48 2742 46900 46480 1270 1270 -190.38 128.55 128.10 -418.95 CAMS-53801 bulloides 22.513 46596 2912.25 2918 47500 47080 1100 1100 -201.04 109.77 137.13 -438.64 NSRL-12307 bulloides 22.763 47108 3091.46 3097 47500 47080 1180 1180 -149.99 125.33 236.25 -415.55 CAMS-56383 bulloides 23.013 47612 3273.33 3278 47400 46980 1500 1500 -85.24 171.82 359.96 -384.70 NSRL-12308 bulloides 23.263 48114 3458.19 3463 49200 48780 1720 1720 -223.10 167.63 181.09 -488.97 CAMS-56384 bulloides 23.513 48622 3646.65 3651 47000 46580 1400 1400 86.41 190.32 689.65 -301.47 CAMS-56385 bulloides 24.043 49686 3881.72 3886 49200 48780 1900 1900 -60.39 224.33 503.44 -412.77 CAMS-56386 bulloides 24.063 49727 4040.32 4044 49200 48780 1900 1900 -55.72 225.45 540.15 -421.05 CAMS-56387 bulloides 24.563 50738 4281.02 4285 49800 49380 2000 2000 -9.68 249.13 662.92 -410.23 CAMS-56388 bulloides 25.063 51747 4527.86 4531 48900 48480 1800 1800 251.52 282.81 1165.16 -276.59 "CAMS-70071, CAMS-71099" "bulloides, mixed" 25.663 53236 4824.51 4828 52050 51630 1769 1769 12.42 224.80 815.45 -435.41 average "CAMS-70072, CAMS-71100" "bulloides, mixed" 26.163 54527 5111.91 5115 53600 53180 2126 2126 -24.15 261.31 811.73 -474.38 average CAMS-71101 mixed 26.663 55815 5407.08 5410 56300 55880 1800 1800 -185.16 184.13 567.77 -576.49 "CAMS-70074, CAMS-71102" "bulloides, mixed" 27.163 57103 5710.30 5713 54100 53680 2280 2280 252.21 360.28 1499.24 -372.60 average CAMS-70075 bulloides 27.663 58113 5811.30 5814 51900 51480 2600 2600 860.70 612.83 2759.32 -79.04 CAMS-70076 bulloides 28.163 59180 5918.00 5921 56100 55680 2300 2300 255.05 364.29 1568.61 -386.77