|
Core, section,
interval (cm) |
Depth
(mbsf) |
Depth within
basement (m) |
CaCO3
mineral |
 13C(  VPDB)
|
18O ( VSMOW)
|
Mg
(ppm) |
Sr
(ppm) |
Fe
(ppm) |
Mn
(ppm) |
87Sr/86Sr
|
±2
 E
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 206-1256C- | |||||||||||
| 5R-3, 14–18 | 255.4 | 5.4 | A | 0.58 | 27.66 | 429 | 3,520 | 1,130 | 15 | 0.708638 |
±0.000011 |
| 5R-3, 27–30 | 255.6 | 5.6 | A | 1.37 | 26.45 | 217 | 3,230 | 528 | 10 | 0.708632 |
±0.000013 |
| 6R-3, 109–112 | 260.8 | 10.8 | A | 1.58 | 26.89 | 47 | 3,520 | 140 | 5 | 0.708623 |
±0.000011 |
| 6R-4, 107–111 | 262.1 | 12.1 | AC | 0.61 | 25.48 | 4,590 | 471 | 11,600 | 25,300 | 0.708572 |
±0.000011 |
| 7R-3, 50–55 | 269.8 | 19.8 | C | 0.32 | 25.17 | 4,970 | 140 | 12,500 | 25,600 | 0.708566 |
±0.000013 |
| 8R-1, 56–60 | 276.1 | 26.1 | A | 0.66 | 27.28 | 84 | 4,210 | 209 | 12 | 0.708658 |
±0.000010 |
| 8R-4, 20–23 | 279.8 | 29.8 | C | 0.42 | 21.87 | 1,170 | 59 | 2,100 | 7,390 | 0.708216 |
±0.000093 |
| 8R-4, 32–35 | 279.9 | 29.9 | A | 3.47 | 30.76 | 508 | 6,520 | 1,210 | 70 | 0.708691 |
±0.000010 |
| 8R-4, 64–67 | 280.2 | 30.2 | A | 3.29 | 30.52 | 541 | 6,340 | 1,230 | 51 | 0.708701 |
±0.000011 |
| 8R-4, 72–75 | 280.3 | 30.3 | AC | 2.54 | 30.61 | 1,250 | 6,400 | 2,500 | 124 | 0.708684 |
±0.000011 |
| 8R-6, 21–23 | 281.7 | 31.7 | A | 3.11 | 31.50 | 366 | 5,760 | 590 | 79 | 0.708553 |
±0.000011 |
| 13R-1, 10–12 | 322.1 | 72.1 | A | 3.23 | 28.92 | 110 | 5,140 | 249 | 36 | 0.708719 |
±0.000011 |
| 206-1256D- | |||||||||||
| 7R-1, 46–49 | 304.4 | 54.4 | C | 0.36 | 22.99 | 1,240 | 40 | 3,510 | 8,900 | — |
— |
| 7R-6, 39–41 | 311.1 | 61.1 | C | –0.93 | 22.64 | 2,720 | 86 | 5,740 | 6,700 | — |
— |
| 8R-3, 67–68 | 316.2 | 66.2 | A | 3.61 | 29.45 | 415 | 4,070 | 950 | 86 | 0.708614 |
±0.000011 |
| 8R-4, 111–116 | 317.4 | 67.4 | AC | 1.93 | 26.35 | 1,860 | 1,050 | 4,280 | 20,200 | 0.708437 |
±0.000011 |
| 12R-5, 76–81 | 347.1 | 97.1 | C | –0.35 | 25.92 | 1,970 | 53 | 2,890 | 44,700 | 0.70823 |
±0.000013 |
| 12R-6, 93–95 | 348.8 | 98.8 | C | 1.07 | 23.59 | 807 | 29 | 1,910 | 8,310 | 0.708086 |
±0.000047 |
| 12R-8, 27–33 | 350.8 | 100.8 | AC | 2.29 | 28.43 | 1,340 | 4,770 | 2,350 | 67 | 0.708675 |
±0.000011 |
| 13R-1, 82–85 | 351.1 | 101.1 | C | 0.06 | 23.08 | 1,510 | 53 | 1,760 | 8,340 | — |
— |
| 26R-5, 104–105 | 445.0 | 195.0 | C | 0.30 | 22.23 | 3,380 | 52 | 8,490 | 10,600 | 0.708341 |
±0.000024 |
| 27R-1, 23–27 | 445.6 | 195.6 | C | –1.34 | 22.27 | 3,160 | 63 | 10,100 | 11,100 | 0.708296 |
±0.000014 |
| 27R-1, 29–32 | 445.7 | 195.7 | C | –0.57 | 22.09 | 4,650 | 76 | 12,800 | 14,300 | 0.708446 |
±0.000016 |
| 27R-2, 28–31 | 447.1 | 197.1 | C | 0.53 | 22.29 | 2,490 | 60 | 5,140 | 6,720 | 0.708308 |
±0.000011 |
| 28R-1, 121–123 | 452.1 | 202.1 | C | –0.44 | 22.04 | 4,560 | 65 | 7,580 | 13,200 | 0.708408 |
±0.000018 |
| 32R-1, 98–99 | 476.2 | 226.2 | A | 0.00 | 22.11 | 133 | 1,160 | 404 | 52 | 0.708365 |
±0.000010 |
| 32R-1, 124–126 | 476.4 | 226.4 | C | –3.11 | 21.59 | 2,230 | 50 | 7,560 | 9,890 | 0.708286 |
±0.000011 |
| 32R-2, 44–46 | 477.1 | 227.1 | A | –1.23 | 21.77 | 398 | 759 | 1,290 | 1,110 | 0.708259 |
±0.000011 |
| 32R-4, 2–4 | 479.3 | 229.3 | AC | –1.49 | 21.60 | 2,220 | 398 | 6,500 | 6,320 | 0.70825 |
±0.000011 |
| 33R-3, 15–17 | 484.0 | 234.0 | C | 0.07 | 21.45 | 5,270 | 53 | 18,700 | 5,660 | — |
— |
| 34R-1, 0–3 | 484.4 | 234.4 | C | –0.34 | 21.35 | 2,800 | 62 | 12,200 | 7,480 | 0.708268 |
±0.000013 |
| 36R-1, 42–45 | 494.4 | 244.4 | C | –0.99 | 22.02 | 7,260 | 102 | 18,300 | 15,200 | 0.70849 |
±0.000016 |
| 38R-1, 91–93 | 505.2 | 255.2 | AC | –0.37 | 21.60 | 1,540 | 1,160 | 2,540 | 480 | 0.708295 |
±0.000011 |
| 41R-2, 117–118 | 527.2 | 277.2 | C | –1.84 | 21.01 | 2,150 | 48 | 6,700 | 7,570 | 0.708269 |
±0.000011 |
| 41R-3, 6–10 | 527.5 | 277.5 | A | –1.43 | 21.32 | 495 | 1,130 | 1,290 | 171 | — |
— |
| 42R-1, 33–35 | 529.7 | 279.7 | C | –2.28 | 20.97 | 2,080 | 51 | 7,360 | 6,170 | — |
— |
| 59R-1, 27–31 | 659.3 | 409.3 | C | 0.80 | 20.02 | 950 | 37 | 1,740 | 1,160 | 0.708043 |
±0.000016 |
Notes: A = aragonite, C = calcite, AC = aragonite-calcite mixture. VPDB = Vienna Peedee belemnite, VSMOW = Vienna standard mean ocean water. 87Sr/86Sr for NIST-987 was 0.710248 ± 0.000027 for the period of the analyses (N = 80). — = not determined.