Table 1 Results from the ICP-MS and ICP-OES analyses. Also shown are C-segments, and δ13C, δ18O, and total organic carbon (TOC) values from42,44.
Sample number | Stratigraphic position (m) | C-segment | δ13C (‰VPDB) | δ18O (‰VPDB) | CaCO3 (wt%) | TOC (wt%) | Fe/Ca (mmol/mol) | Mn/Ca (mmol/mol) | Al (ppm) | Mn/Sr (ppm/ppm) | Mg/Ca (mol/mol) | I (ppm) | I/(Ca + Mg) (µmol/mol) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DD6 | 2.8 | C2 | 1.05 | −5.22 | 91.52 | 0.56 | 1.5357 | 0.4368 | 850.197 | 0.3787 | 0.0187 | 0.3633 | 0.3777 |
DD8 | 3.8 | 1.00 | −5.36 | 89.95 | 0.20 | 1.6409 | 0.3455 | 1924.793 | 0.7069 | 0.0901 | 0.62 | 0.4995 | |
DD10 | 4.8 | 0.99 | −4.63 | 88.85 | 0.43 | 1.3394 | 0.2726 | 1770.924 | 0.3374 | 0.0373 | 0.6035 | 0.628 | |
DD13 | 6.1 | 0.25 | −5.22 | 91.10 | 0.93 | 0.6992 | 0.2182 | 1249.764 | 0.2936 | 0.0208 | 0.4048 | 0.4352 | |
DD14 | 6.8 | 0.63 | −4.81 | 86.15 | 0.41 | 1.2803 | 0.1845 | 1462.598 | 0.2773 | 0.0187 | 0.616 | 0.5997 | |
DD15 | 7.8 | 0.69 | −4.44 | 89.45 | 0.34 | 1.5281 | 0.1684 | 957.140 | 0.1194 | 0.0153 | 0.9111 | 0.9546 | |
DD17 | 8.5 | C3 | 0.80 | −5.82 | 79.47 | 0.35 | 0.9052 | 0.1423 | 7773.911 | 1.4902 | 0.1577 | 0.4642 | 0.3423 |
DD18 | 9.1 | 0.38 | −5.76 | 86.09 | 0.65 | 1.493 | 0.1363 | 1545.337 | 0.1808 | 0.0248 | 0.3503 | 0.3515 | |
DD20 | 10.1 | 0.71 | −5.97 | 86.77 | 0.71 | 0.5653 | 0.1123 | 4259.526 | 0.3568 | 0.076 | 0.2148 | 0.1796 | |
DD21 | 10.8 | −0.81 | −4.72 | 88.72 | 0.35 | 1.3111 | 0.0731 | 2476.184 | 0.3247 | 0.0456 | 0.3603 | 0.3545 | |
DD22 | 11.1 | C4 | 1.35 | −6.32 | 85.42 | 0.77 | 0.9075 | 0.0877 | 2149.793 | 0.0642 | 0.0238 | 0.2019 | 0.2153 |
DD23 | 11.8 | −0.17 | −5.76 | 91.32 | 0.50 | 0.3694 | 0.0534 | 510.416 | 0.0642 | 0.0157 | 0.2755 | 0.2507 | |
DD24 | 12.1 | 0.99 | −6.29 | 89.62 | 0.33 | 0.5274 | 0.0571 | 483.196 | 0.0354 | 0.0192 | 0.3435 | 0.3667 | |
DD25 | 12.8 | 1.29 | −6.55 | 91.90 | 1.46 | 0.5756 | 0.0893 | 259.503 | 0.1744 | 0.0152 | 0.1058 | 0.1129 | |
DD26 | 13.1 | 1.18 | −6.45 | 91.30 | 2.18 | 1.8115 | 0.1966 | 355.212 | 0.0314 | 0.0227 | 0.1609 | 0.1756 | |
DD27 | 13.8 | 1.28 | −6.56 | 91.03 | 1.05 | 0.1694 | 0.0361 | 874.101 | 0.043 | 0.0243 | 0.403 | 0.3814 | |
DD28 | 14.1 | 1.34 | −6.36 | 93.85 | 0.62 | 0.3756 | 0.0379 | 970.028 | 0.0811 | 0.0311 | 0.2054 | 0.1971 | |
DD30 | 15.1 | 1.28 | −6.61 | 94.61 | 1.21 | 0.379 | 0.0409 | 2388.996 | 0.1819 | 0.0625 | 0.2752 | 0.2362 | |
DD31 | 15.8 | 1.36 | −6.30 | 92.61 | 0.66 | 0.5787 | 0.0584 | 557.322 | 0.0219 | 0.0152 | 0.4731 | 0.4614 | |
DD32 | 16.1 | 1.28 | −6.82 | 88.94 | 0.86 | 0.3719 | 0.0352 | 1207.792 | 0.0355 | 0.0241 | 0.1958 | 0.2067 | |
DD33 | 16.5 | 1.42 | −6.49 | 92.68 | 0.77 | 1.9509 | 0.242 | 1125.285 | 0.0888 | 0.03 | 0.2552 | 0.264 | |
DD34 | 16.8 | 1.41 | −6.14 | 89.99 | 2.96 | 0.1329 | 0.0323 | 391.285 | 0.0251 | 0.0212 | 0.2055 | 0.2215 | |
DD35 | 17.1 | 1.06 | −6.37 | 92.00 | 2.58 | 0.0952 | 0.0372 | 368.955 | 0.0563 | 0.0213 | 0.1282 | 0.1351 | |
DD36 | 17.8 | 0.99 | −6.97 | 92.01 | 0.55 | 0.2789 | 0.0424 | 392.529 | 0.1024 | 0.0203 | 0.1923 | 0.1696 | |
DD37 | 18.1 | 1.16 | −6.29 | 93.31 | 0.52 | 0.3526 | 0.0653 | 410.710 | 0.0395 | 0.0144 | 0.1056 | 0.1069 | |
DD38 | 18.8 | 1.37 | −6.53 | 94.80 | 0.48 | 0.1701 | 0.0348 | 764.069 | 0.0588 | 0.027 | 0.1542 | 0.1536 | |
DD41 | 20 | 2.08 | −6.50 | 91.84 | 0.28 | 0.3287 | 0.0309 | 524.118 | 0.041 | 0.0192 | 0.0052 | 0.0053 | |
DD42 | 20.1 | 2.16 | −6.70 | 86.98 | 0.49 | 0.2023 | 0.0331 | 598.678 | 0.0308 | 0.0203 | 0.27 | 0.2976 | |
DD43 | 20.8 | 2.22 | −6.72 | 90.75 | 1.36 | 0.0847 | 0.0274 | 150.440 | 0.0171 | 0.0164 | 0.2909 | 0.3308 | |
DD44 | 21.1 | 2.32 | −6.35 | 87.60 | 0.41 | 0.211 | 0.0324 | 5197.216 | 0.4887 | 0.1201 | 0.0383 | 0.028 | |
DD45 | 21.8 | 1.83 | −6.89 | 91.52 | 0.21 | 0.2764 | 0.0307 | 681.743 | 0.043 | 0.0219 | 0.1585 | 0.1577 | |
DD46 | 22.1 | 2.22 | −6.59 | 76.06 | 0.32 | 0.5881 | 0.0533 | 796.481 | 0.0866 | 0.0306 | 0.1787 | 0.2435 | |
DD47 | 22.8 | 2.48 | −6.76 | 93.86 | 1.67 | 0.1401 | 0.0212 | 722.397 | 0.0316 | 0.0226 | 0.1141 | 0.0971 | |
DD48 | 23.1 | 2.83 | −6.86 | 93.16 | 2.38 | 0.189 | 0.0209 | 488.807 | 0.0222 | 0.0226 | 0.4245 | 0.4423 | |
DD49 | 23.8 | C5 + C6 | 2.59 | −6.79 | 91.97 | 0.37 | 0.1271 | 0.0259 | 739.199 | 0.042 | 0.0278 | 0.1334 | 0.1375 |
DD50 | 24.1 | 2.55 | −6.66 | 77.45 | 0.11 | 0.5699 | 0.0261 | 664.772 | 0.0631 | 0.0117 | 0.2631 | 0.4309 | |
DD51 | 24.8 | 2.66 | −6.38 | 77.55 | 0.31 | 0.3239 | 0.1052 | 1203.041 | 0.1567 | 0.0507 | 0.0389 | 0.0447 | |
DD52 | 25.1 | 2.45 | −6.75 | 80.72 | 0.82 | 0.1051 | 0.0291 | 994.833 | 0.1914 | 0.0208 | 0.0696 | 0.079 | |
DD53 | 25.8 | 1.67 | −7.09 | 76.20 | 2.35 | 0.7879 | 0.0291 | 1634.893 | 0.0901 | 0.0453 | 0.0624 | 0.0743 | |
DD54 | 26.1 | 2.09 | −6.66 | 73.18 | 1.57 | 0.3472 | 0.0255 | 1592.612 | 0.1325 | 0.0528 | 0.2936 | 0.3227 | |
DD55 | 26.8 | 2.06 | −6.82 | 81.64 | 0.72 | 0.2967 | 0.0281 | 842.986 | 0.0578 | 0.0241 | 0.1565 | 0.1948 | |
DD56 | 27.1 | 2.57 | −6.84 | 77.27 | 2.46 | 0.2136 | 0.0257 | 1344.395 | 0.0495 | 0.0209 | 0.1622 | 0.2051 | |
DD57 | 27.8 | 2.24 | −6.87 | 79.46 | 0.81 | 0.1717 | 0.3054 | 807.442 | 0.0198 | 0.011 | 0.629 | 0.7587 | |
DD58 | 28.1 | 2.67 | −7.09 | 78.50 | 0.57 | 0.2544 | 0.036 | 772.426 | 0.0238 | 0.02 | 0.1212 | 0.1906 | |
DD59 | 28.8 | 2.34 | −6.97 | 81.61 | 0.58 | 0.3929 | 0.0512 | 754.896 | 0.0463 | 0.0185 | 0.2609 | 0.2974 | |
DD60 | 29.1 | 2.41 | −6.71 | 77.18 | 1.17 | 0.3317 | 0.0544 | 1503.593 | 0.1042 | 0.0407 | 0.118 | 0.1375 | |
DD61 | 29.8 | 2.47 | −6.62 | 78.66 | 0.65 | 0.5933 | 0.0765 | 582.371 | 0.0435 | 0.0179 | 0.1044 | 0.1289 | |
DD62 | 30.1 | 2.89 | −6.64 | 79.44 | 0.21 | 0.2949 | 0.0601 | 972.698 | 0.1821 | 0.0208 | 0.2793 | 0.2958 | |
DD64 | 31.1 | 2.02 | −6.91 | 80.05 | 1.03 | 0.1522 | 0.0541 | 1334.627 | 0.1399 | 0.0477 | 0.2123 | 0.2531 | |
DD65 | 31.8 | 2.81 | −6.82 | 75.62 | 1.53 | 0.8043 | 0.083 | 792.579 | 0.0414 | 0.0197 | 0.0583 | 0.0798 | |
DD66 | 32.1 | 2.53 | −7.06 | 81.10 | 1.41 | 0.2807 | 0.0727 | 955.903 | 0.0368 | 0.0204 | 0.1887 | 0.2316 | |
DD67 | 32.8 | 1.90 | −6.50 | 64.02 | 0.60 | 1.8159 | 0.0829 | 2201.838 | 0.1855 | 0.0493 | 0.2557 | 0.3543 | |
DD68 | 33.1 | 2.10 | −7.11 | 75.94 | 1.04 | 0.6584 | 0.0938 | 1047.945 | 0.0635 | 0.0204 | 0.4458 | 0.4936 | |
DD69 | 33.8 | 1.54 | −6.65 | 88.23 | 0.79 | 0.3639 | 0.1079 | 2431.819 | 0.2381 | 0.0628 | 0.1786 | 0.1716 | |
DD70 | 34.1 | 2.31 | −6.74 | 79.23 | 1.86 | 0.8023 | 0.0827 | 1222.308 | 0.0485 | 0.0472 | 0.202 | 0.2355 | |
DD72 | 35.1 | 2.80 | −6.52 | 68.53 | 0.28 | 3.0585 | 0.1474 | 2578.703 | 0.1612 | 0.0373 | 0.3983 | 0.5373 | |
DD74 | 36.1 | 2.55 | −6.41 | 81.79 | 0.89 | 0.8807 | 0.1609 | 4110.522 | 1.0067 | 0.0972 | 1.4757 | 0.9656 | |
DD76 | 37.1 | 2.67 | −6.42 | 72.80 | 1.37 | 2.5949 | 0.167 | 1664.077 | 0.118 | 0.0247 | 0.307 | 0.4181 | |
DD77 | 37.8 | 2.22 | −6.11 | 74.44 | 0.51 | 2.4318 | 0.1604 | 1284.017 | 0.0644 | 0.0193 | 0.2549 | 0.3274 | |
DD78 | 38.1 | 2.28 | −6.67 | 68.75 | 0.50 | 1.998 | 0.1464 | 491.141 | 0.1024 | 0.0166 | 1.0307 | 1.3023 | |
DD79 | 38.8 | 2.54 | −6.38 | 71.83 | 1.31 | 1.7409 | 0.1591 | 1470.273 | 0.0931 | 0.0245 | 0.2752 | 0.3773 | |
DD80 | 39.5 | 0.63 | −6.19 | 73.90 | 0.88 | 3.243 | 0.3304 | 947.918 | 0.1164 | 0.0193 | 0.5996 | 0.7346 |