Southeast Pacific SST Reconstruction: Readme file ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: Southeast Pacific SST Reconstruction LAST UPDATE: 7/2002 (Original Receipt by WDC Paleo) CONTRIBUTOR: Frank Lamy, Universität Bremen IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2002-041 SUGGESTED DATA CITATION: Lamy, F., et al., 2002, Southeast Pacific SST Reconstruction, IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2002-041. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Lamy, F., C. Rühlemann, D. Hebbeln, and G. Wefer, 2002, High- and low-latitude climate control on the position of the southern Peru-Chile Current during the Holocene. Paleoceanography, v17, No. 3, 10.1029/2001PA000727. Fe and chronologic data previously published in: Lamy, F., Hebbeln, D., Röhl, U. and Wefer, G., 2001. Holocene rainfall variability in southern Chile: a marine record of latitudinal shifts of the Southern Westerlies. Earth and Planetary Science Letters, 185(3-4): 369-382. GEOGRAPHIC REGION: Southeast Pacific Ocean, Chilean Coast PERIOD OF RECORD: Holocene, 8,000 YrBp - present. DESCRIPTION: Lamy et al. Southeast Pacific SST Reconstruction Core GeoB 3313-1 41 00 S, 74 27 W, 852m depth. We reconstruct changes of paleotemperature, -salinity, and -productivity within the southern Peru-Chile Current during the last 8,000 years from a high-resolution sediment core recovered at 41°S using alkenones, isotope ratios of planktic foraminifera, biogenic opal, and organic carbon. Paleotemperatures and -salinities reached maximum values at ca. 5,500 years and thereafter declined to modern values, whereas paleoproductivity continuously increased throughout the last 8,000 years. We ascribe these long-term Holocene trends primarily to latitudinal shifts of the Antarctic Circumpolar Current (ACC). The concurrence with shifts in the position of the Southern Westerlies points to a common response of atmospheric and oceanographic circulation patterns off southern Chile. Millennial to centennial-scale fluctuations of paleotemperatures and salinities, on the other hand, lag displacements in the position of the Southern Westerlies but reveal a significant correlation to short-term temperature changes in Antarctica indicating a high-latitude control of the ACC at these time scales. DATA: Age Model: Core Depth (cm) 14Cage ñ Err. Calendar age 38 195 30 260 155.5 1220 30 1180 263 1970 50 1980 405.5 3460 40 3820 508 4390 40 5040 635.5 4830 60 5590 755.5 6170 80 7090 SST: depth SST 3 14.17 13 14.58 23 14.70 33 14.53 43 14.67 53 14.91 63 14.62 73 14.81 83 14.89 93 15.03 103 14.97 113 15.34 123 15.33 133 15.20 143 15.03 153 15.16 163 15.17 168 15.14 173 15.14 183 15.35 193 15.29 203 15.59 208 15.56 213 15.44 223 15.28 233 15.18 238 15.08 248 15.04 258 15.01 268 15.45 278 15.05 288 15.01 298 15.11 308 14.90 318 15.33 328 15.07 338 15.10 348 15.32 358 15.29 363 15.29 368 15.23 378 15.17 388 15.35 398 15.54 408 15.73 418 15.76 428 15.39 438 15.33 448 15.58 458 15.46 468 15.43 478 15.31 488 15.53 498 15.41 508 15.53 518 15.39 528 15.51 538 15.58 548 15.55 558 15.74 568 15.81 578 15.90 588 15.86 598 16.19 608 16.10 618 16.03 628 16.15 638 15.84 648 16.03 658 15.77 668 15.51 678 15.65 688 15.56 698 15.33 708 15.63 718 15.52 728 15.44 738 15.47 748 15.16 758 15.27 768 15.50 778 15.32 788 15.41 798 15.49 802 15.15 Opal: depth (cm) Biogenic Opal (wt- 0 4 3 4.5 23 4.5 43 4 63 4.2 83 4.5 103 4.3 123 3.6 143 4.1 163 3 183 3.7 203 3.4 223 3.6 243 3.2 263 3.4 283 3.3 303 3.3 323 3.5 343 2.9 363 3.5 383 3.2 403 3.8 423 2.9 443 2.9 463 2.7 483 2.9 503 2.7 523 3.2 543 3.1 563 3.5 583 3.1 603 3.8 623 2.6 643 2.7 663 2.7 683 2.1 703 2.6 723 2.7 743 2.6 763 2.7 783 2.5 802 2.4 d18O, SSS, Corg: depth (cm) d18O (per mil vs. PDB) SSS (psu) Corg (wt.- 3 2.41 8 2.41 13 2.46 18 0.40 33.69 2.43 23 0.49 34.08 2.34 28 0.57 34.30 1.98 33 0.39 33.51 2.41 38 0.37 33.53 2.37 43 0.39 33.69 2.35 48 0.49 34.06 2.4 53 0.41 33.72 2.23 58 0.32 33.36 2.18 63 0.43 33.74 2.07 68 0.53 34.23 2.14 73 0.48 34.13 2.16 78 0.18 33.02 1.98 83 0.49 34.26 2.08 88 0.49 34.30 2.06 93 0.49 34.35 2.01 98 0.35 33.76 1.87 103 0.07 32.64 1.86 108 0.58 34.74 1.95 113 0.54 34.72 2.04 118 0.50 34.61 2.06 123 0.37 34.16 2.02 128 0.28 33.77 1.91 133 0.45 34.38 2.02 138 0.43 34.21 1.99 143 0.48 34.31 1.97 148 0.30 33.71 1.99 153 0.12 33.10 2 158 0.47 34.45 1.96 163 0.37 34.07 1.82 168 0.46 34.32 1.95 173 0.18 33.25 1.94 178 0.51 34.56 1.93 183 0.42 34.26 1.96 188 0.42 34.30 1.82 193 0.39 34.23 1.84 198 0.47 34.68 1.85 203 0.41 34.58 1.93 208 0.24 33.93 1.92 213 0.32 34.05 2.02 218 0.27 33.77 2.17 223 0.28 33.72 2.15 228 0.33 33.91 2.07 233 0.48 34.49 2.02 238 0.52 34.55 1.85 243 0.58 34.74 1.69 248 0.34 33.77 1.82 253 0.53 34.55 1.93 258 0.21 33.36 1.93 263 0.47 34.45 1.99 268 0.49 34.62 1.88 273 0.47 34.45 1.74 278 0.49 34.44 1.7 283 0.01 32.55 1.87 288 0.37 33.89 1.78 293 0.32 33.74 1.84 298 0.35 33.90 1.69 303 0.48 34.36 1.68 308 0.43 34.12 2 313 0.70 35.20 1.99 318 0.68 35.17 1.95 323 0.57 34.75 1.88 328 0.54 34.63 1.98 333 0.46 34.32 2.06 338 0.31 33.75 1.84 343 0.36 34.03 1.79 348 0.58 34.97 1.89 353 0.51 34.70 1.9 358 0.50 34.66 2.04 363 0.54 34.81 2.09 368 0.31 33.84 2.1 373 0.31 33.84 2.1 378 0.29 33.76 2.09 383 0.53 34.77 2.08 388 0.29 33.94 2.1 393 0.49 34.75 2.1 398 0.46 34.68 1.96 403 0.30 34.16 2 408 0.50 35.02 1.82 413 0.29 34.25 1.76 418 0.54 35.26 1.9 423 0.53 35.04 1.85 428 0.51 34.79 1.72 433 0.40 34.32 1.76 438 0.38 34.20 1.78 443 0.31 34.00 1.77 448 0.23 33.80 1.75 453 0.32 34.12 1.75 458 0.40 34.45 1.81 463 0.28 33.95 1.51 468 0.31 34.02 1.67 473 0.29 33.89 1.76 478 0.16 33.35 1.54 483 0.4 34.36 1.6 488 0.53 34.95 1.65 493 0.31 34.06 1.57 498 0.28 33.90 1.67 503 0.37 34.29 1.62 508 0.43 34.57 1.56 513 0.49 34.75 1.49 518 0.43 34.48 1.6 523 0.56 35.02 1.49 528 0.49 34.80 1.65 533 0.49 34.83 1.45 538 0.49 34.87 1.62 543 0.48 34.81 1.75 548 0.48 34.76 1.84 553 0.49 34.89 1.74 558 0.39 34.59 1.7 563 0.43 34.79 1.77 568 0.37 34.61 1.81 573 0.31 34.42 1.79 578 0.52 35.27 1.88 583 0.5 35.20 1.69 588 0.56 35.43 1.76 593 0.32 34.55 1.79 598 0.45 35.09 1.77 603 0.42 35.02 1.86 608 0.61 35.80 1.77 613 0.36 34.79 1.73 618 0.21 34.17 1.65 623 0.53 35.36 1.73 628 0.5 35.20 1.66 633 0.48 35.07 1.64 638 0.48 35.03 1.67 643 0.33 34.54 1.73 648 0.41 34.94 1.83 653 0.44 34.96 1.87 658 0.39 34.68 1.57 663 0.34 34.36 1.54 668 0.48 34.76 1.61 673 0.42 34.55 1.68 678 0.25 33.92 1.57 683 0.38 34.44 1.6 688 0.38 34.46 1.44 693 0.15 33.44 1.54 698 0.59 35.00 1.53 703 0.5 34.79 1.5 708 0.36 34.39 1.54 713 0.36 34.34 1.55 718 0.49 34.80 1.75 723 0.4 34.41 1.69 728 0.11 33.25 1.65 733 -0.14 32.33 1.84 738 0.38 34.38 1.74 743 0.45 34.51 1.66 748 -0.06 32.41 1.53 753 0.12 33.15 1.51 758 0.35 34.08 1.57 763 0.04 32.98 1.6 768 0.15 33.49 1.61 773 0.26 33.82 1.67 778 0.29 33.85 1.5 783 0.38 34.24 1.6 788 0.44 34.52 1.59 793 0.28 33.95 1.54 798 0.31 34.11 1.59 803 0.17 33.24 1.58 depth (cm) Fe (cps) 17 5243 18 5223 19 5489 20 5093 21 5128 22 5220 23 5376 24 5139 25 5560 26 5414 27 5532 28 5340 29 5258 30 5393 31 5138 32 5208 33 5233 34 4996 35 5049 36 4973 37 5060 38 4978 39 5069 40 4903 41 5308 42 5097 43 5264 44 5191 45 5135 46 5088 47 4976 48 5133 49 5075 50 5031 51 5102 52 5965 53 5385 54 5182 55 5316 56 5347 57 5313 58 5343 59 5083 60 5264 61 5129 62 5506 63 5576 64 5359 65 5101 66 5157 67 5017 68 5299 69 5118 70 5285 71 5124 76 5146 77 5082 78 5366 79 5099 80 5847 81 5391 82 5393 83 5430 84 5449 85 5290 86 5395 87 5588 88 5824 89 5665 90 5384 91 5599 92 5591 93 5326 94 5483 95 5738 96 4876 97 5334 98 6030 99 5709 100 5568 101 5870 102 6044 103 5523 104 5919 105 6105 106 5779 107 5509 108 5455 109 5490 110 5326 111 5273 112 5532 113 5219 114 5261 116 5367 117 5510 118 5304 119 5158 120 5221 121 5227 122 5201 123 5257 124 5147 125 5277 126 5358 127 5367 128 5401 129 5607 130 5368 131 5416 132 5471 133 5413 134 5524 135 5497 136 5512 137 5643 138 5387 139 5510 140 5337 141 5395 142 5184 143 5449 144 5308 145 5240 146 5082 147 5089 148 5015 149 5419 150 5502 151 5496 152 5348 153 5505 154 5596 155 5516 156 5326 157 4863 158 5075 159 5136 160 5068 161 4979 162 5266 163 5326 164 5205 165 5158 166 5048 167 5144 168 5066 169 5144 170 5210 171 5144 172 5182 173 4943 174 5016 175 5053 176 5075 177 5107 178 5149 179 5106 180 5095 181 5077 182 5091 183 5256 184 5252 185 5448 186 5412 187 5379 188 5385 189 5414 190 5341 191 5543 192 5420 193 5338 194 5244 195 5350 196 5401 197 5298 198 5293 199 5292 200 5384 201 5353 202 5328 203 5299 204 5353 205 5758 206 5338 207 5535 208 5449 209 5396 210 5402 211 5322 212 5357 213 5511 214 5555 216 5938 217 5961 218 5779 219 5932 220 6056 221 6216 222 6081 223 6185 224 5964 225 5855 226 5957 227 5779 228 5703 229 5659 230 5592 231 5738 232 5628 233 5630 234 5450 235 5465 236 5776 237 5715 238 5727 239 6100 240 5945 241 5933 242 5875 243 5710 244 5949 245 5737 246 5789 247 5755 248 5515 249 5648 250 5688 251 5697 252 5645 253 5652 254 5994 255 5634 256 5746 257 5562 258 5361 259 5075 260 5172 261 5235 262 5164 263 5120 264 5282 265 5300 266 5475 267 5285 268 5340 269 5289 270 5285 271 5238 272 5606 273 5185 274 5526 275 5427 276 5271 277 5453 278 5514 279 5228 280 5277 281 5327 282 5350 283 5909 284 5467 285 5625 286 5359 287 5296 288 5591 289 5447 290 5222 291 5111 292 5374 293 4962 294 5897 295 5325 296 5362 297 5383 298 5702 299 5776 300 5775 301 5841 302 5815 303 5589 304 5539 305 5697 306 5444 307 5383 308 5730 309 5541 310 5691 311 5313 312 5866 313 5883 314 5279 315 5030 317 5538 318 5426 319 5274 320 5323 321 5400 322 5573 323 5333 324 5258 325 5225 326 5202 327 5187 328 5190 329 5148 330 5071 331 4991 332 5280 333 5159 334 5123 335 4972 336 5248 337 5169 338 5172 339 5248 340 5050 341 5118 342 5187 343 5203 344 5315 345 5200 346 5278 347 5132 348 5219 349 5239 350 5222 351 5158 352 5020 353 5053 354 5046 355 5257 356 5268 357 5138 358 5026 359 5127 360 4917 361 4881 362 5195 363 4849 364 4930 365 5153 366 5106 367 5499 368 5065 369 5086 370 5535 371 5138 372 5940 373 5266 374 5872 375 5060 376 5098 377 5055 378 5250 379 5202 380 5151 381 5169 382 5029 383 5130 384 5028 385 5211 386 5209 387 5374 388 5325 389 5226 390 5177 391 5237 392 5192 393 5132 394 5308 395 5150 396 5239 397 5227 398 5281 399 5137 400 5126 401 5066 402 5192 403 5149 404 5064 405 5113 406 5059 407 4937 408 5172 409 5138 410 5172 411 5069 412 5266 413 5106 414 5694 415 5015 416 4974 417 5591 418 5464 419 5765 420 5564 421 5527 422 5483 423 5716 424 6401 425 5757 426 5573 427 6071 428 5633 429 5656 430 5612 431 5946 432 5520 433 5819 434 5850 435 5474 436 5713 437 5742 438 5620 439 5948 440 5461 441 5732 442 5813 443 5632 444 5572 445 5939 446 5758 447 5826 448 5890 449 5657 450 5605 451 5655 452 6058 453 5897 454 5759 455 5948 456 6095 457 5932 458 5612 459 5801 460 5554 461 5361 462 5891 463 5703 464 6062 465 6891 466 6271 467 5671 468 5750 469 5610 470 5891 471 5603 472 5638 473 6248 474 6099 475 5629 476 5783 477 5847 478 6115 479 5612 480 6013 481 6001 482 6005 483 6151 484 6039 485 5703 486 5331 487 5276 488 5411 489 5386 490 5597 491 5602 492 5363 493 5806 494 5176 495 5250 496 5483 497 5409 498 5450 499 5326 500 5306 501 5462 502 5309 503 5906 504 5784 505 5581 506 6373 507 5881 508 6345 509 5889 510 5896 511 5665 512 5448 513 5977 514 5830 515 5766 517 5600 518 6245 519 6004 520 5996 521 5874 522 5626 523 5795 524 5939 525 5726 526 5918 527 5718 528 5630 529 5864 530 5940 531 5760 532 5926 533 5887 534 5836 535 5824 536 5718 537 5621 538 5577 539 5779 540 6118 541 5700 542 5934 543 5747 544 5952 545 5578 546 5526 547 6748 548 5417 549 6630 550 5663 551 5767 552 5779 553 5624 554 6122 555 5915 556 5633 557 5774 558 5745 559 5780 560 5451 561 5190 562 5209 563 5007 564 5233 565 5496 566 5950 567 6383 568 5791 569 5682 570 5814 571 5787 572 5847 573 5879 574 6001 575 5726 576 5650 577 5835 578 6803 579 7029 580 8073 581 5948 582 5928 583 5778 584 5820 585 6040 586 5775 587 6422 588 6063 589 6042 590 6812 591 7047 592 6315 593 6245 594 7161 595 6386 596 5933 597 5956 598 6040 599 5944 600 6087 601 5926 602 6057 603 5729 604 6112 605 6016 606 6450 607 5730 608 5935 609 6083 610 6213 611 6631 612 5976 613 6618 614 6099 615 6311 616 6338 617 5714 618 6356 619 6507 620 6093 621 7225 622 6104 623 6213 624 6664 625 6174 626 6133 627 6543 628 6776 629 6718 630 7286 631 6328 632 7062 633 6070 634 6674 635 5879 636 6704 637 6799 638 6152 639 6836 640 6624 641 7044 642 6597 643 6693 644 5985 645 6282 646 6640 647 6417 648 7048 649 6433 650 6321 651 6251 652 6405 653 6389 654 6784 655 6747 656 6221 657 6491 658 6445 659 7652 660 6996 661 6227 662 6316 663 7041 664 6348 665 6529 666 6442 667 6122 668 5666 669 5985 670 5881 671 5961 672 6388 673 5910 674 5992 675 6004 676 5861 677 6069 678 6151 679 6087 680 6054 681 5831 682 6051 683 6148 684 5874 685 5874 686 6333 687 6531 688 6489 689 6384 690 6191 691 6336 692 6058 693 6187 694 6348 695 6387 696 6004 697 6306 698 6060 699 6497 700 6098 701 6003 702 5891 703 6006 704 5926 705 5616 706 5745 707 5858 708 5845 709 5913 710 6412 711 6035 712 6422 713 6483 714 5861 715 5515 716 5577 717 6299 718 6776 719 5695 720 5601 721 5725 722 5919 723 5844 724 5946 725 5818 726 5636 727 6242 728 5723 729 5668 730 5718 731 5814 732 5799 733 5659 734 5847 735 5709 736 6702 737 5860 738 5670 739 5562 740 5733 741 5724 742 5823 743 5777 744 5888 745 5791 746 5636 747 5661 748 5903 749 5765 750 5815 751 6214 752 5939 753 5833 754 5739 755 6056 756 5958 757 6045 758 6050 759 6008 760 5926 761 5665 762 5874 763 5764 764 6012 765 5875 766 5916 767 5842 768 6170 769 6893 770 6803 771 6908 772 5850 773 5924 774 6414 775 6464 776 7750 777 7818 778 6382 779 5881 780 5971 781 5876 782 5855 783 6118 784 6077 785 6036 786 5825 787 6126 788 6285 789 5820 790 5889 791 5871 792 5938 793 6039 794 5914 795 5808 796 5862 797 5805 798 5735 799 5738 800 5605 801 5636 802 5491