# Agulhas Bank Stable Isotope and Mg/Ca Data and SST Reconstruction During the Past 80,000 Years #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Online_Resource: http://www.ncdc.noaa.gov/paleo/study/ # Online_Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/dyez2014.dyez2014.txt # # Archive: Paleoceanography # #-------------------------------- # Contribution_Date # Date: 2015-01-30 #-------------------------------- # Title: Agulhas Bank Stable Isotope and Mg/Ca Data and SST Reconstruction During the Past 80,000 Years #-------------------------------- # Investigators: Dyez, Kelsey A.; Zahn, Rainer; Hall, Ian R. #-------------------- # Description and Notes: # #-------------------- # Publication # Authors: Dyez, K.A., R. Zahn, and I.R. Hall # Journal_Name: Paleoceanography # Published_Title: Multicentennial Agulhas leakage variability and links to North Atlantic climate during the past 80,000 years # Published_Date_or_Year: 2014 # Volume: 29 # Pages: 1238-1248 # DOI: 10.1002/2014PA002698 # Abstract: New high-resolution sea surface temperature (SST) and sea surface salinity (SSS) estimates are presented from the Agulhas Bank slope in the Atlantic sector of the Agulhas Corridor using planktic foraminiferal (Globigerinoides ruber) d18O and Mg/Ca-derived SST. By focusing on the last 80,000 years, this is the first fine-scale Agulhas leakage record that overlaps in time with much of the Greenland ice core record of abrupt climate changes in the North Atlantic region. The multicentennial profiles indicate instances of warm SST and/or increased SSS coincident with Northern Hemisphere cool periods, followed by Northern Hemisphere warming. These periods of enhanced SST and SSS in the Agulhas Corridor occur at the last glacial termination (T1) and during North Atlantic cold episodes associated with Heinrich (H) meltwater events. To a first-order approximation, the timing of maximal salinity events in relation to periods of North Atlantic freshwater pertu rbation is consistent with the concept suggested by climate models that enhanced Agulhas leakage provides for buoyancy compensation and can potentially trigger increased convective activity in the North Atlantic, thereby restoring Atlantic overturning circulation after relatively weak states. #-------------------------------- # Funding_Agency: # Funding_Agency_Name: # Grant: #-------------------------------- # Site Information: # Site_Name: MD02-2594 # Location: South Atlantic Ocean # Northernmost_Latitude: -34.71 # Southernmost_Latitude: -34.71 # Easternmost_Longitude: 17.338333 # Westernmost_Longitude: 17.338333 # Elevation: -2440 #-------------------------------- # Data Collection # Collection_Name: MD02-2594 Dyez14 # Oldest_Year: 80117 # Most_Recent_Year: 177 # Time_Unit: cal yr BP (1950 AD) # Core_Length: # Notes: #-------------------------------- # Chronology #-------------------------------- # Variables # # Data variables follow (have double marker- "##") # Data line variables format: Variables list, one per line, shortname-tab-nine components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## depth_cm depth,,,cm,,,,,N ## age_calkaBP age,,,calendar kiloyears before 1950 AD,,,,,N ## d18Og.rub-w.v delta 18O,Globigerinoides ruber white,,per mil VPDB,,paleoceanography,250-355 µm,,N ## d13Cg.rub-w.v delta 13C,Globigerinoides ruber white,,per mil VPDB,,paleoceanography,250-355 µm,,N ## Mg/Ca-g.rub-w Magnesium Calcium ratio,Globigerinoides ruber white,,mmol/mol,,paleoceanography,,,N ## sst-Mg/Ca-g.rub-w sea surface temperature,Mg/Ca Globigerinoides ruber white,,degrees Celsius,,paleoceanography,,using Anand et al.(2003),N ## Dd18Osw Delta delta 18O,seawater,,per mil SMOW,,paleoceanography,,using Bemis et al.(1998),N ## SampleID Sample ID,,, ,,paleoceanography,,,C ## notes notes,,, ,,,,,C # Data: # Missing Value: NaN depth_cm age_calkaBP d18Og.rub-w.v d13Cg.rub-w.v Mg/Ca-g.rub-w sst-Mg/Ca-g.rub-w Dd18Osw SampleID notes 0.5 0.177 -0.45 1.26 2.459 18.9 0.32 MD02-2594 0-1 6.5 0.528 -0.56 1.19 2.701 19.9 0.42 MD02-2594 6-7 25.5 1.665 -0.62 1.11 2.511 19.1 0.2 MD02-2594 25-26 30.5 1.964 -0.22 1.14 2.395 18.6 0.5 MD02-2594 30-31 35.5 2.263 -0.37 1.1 2.46 18.9 0.4 MD02-2594 35-36 45.5 2.861 -0.24 1.01 2.423 18.7 0.48 MD02-2594 45-46 55.5 3.29 -0.47 1.25 2.462 18.9 0.29 MD02-2594 55-56 60.5 3.635 -0.29 1.22 2.473 19 0.46 MD02-2594 60-61 75.5 4.668 -0.5 1.15 2.512 19.1 0.26 MD02-2594 75-76 80.5 5.012 -0.43 0.99 2.486 19 0.29 MD02-2594 80-81 90.5 5.7 -0.45 1.07 2.2 17.7 0 MD02-2594 90-91 100.5 6.388 -0.4 1.23 2.14 17.4 0 MD02-2594 100-101 108.5 6.939 -0.38 1.17 2.282 18.1 0.15 MD02-2594 108-109 110.5 7.077 -0.35 1 2.197 17.6 0.06 MD02-2594 110-111 Replicated isotope analysis 120.5 7.621 -0.49 1.21 2.486 19 0.18 MD02-2594 120-121 122.5 7.73 -0.42 1.02 2.356 18.4 0.12 MD02-2594 122-123 130.5 8.164 -0.28 1 2.238 17.8 0.14 MD02-2594 130-131 140.5 8.707 -0.36 0.96 2.197 17.6 -0.01 MD02-2594 140-141 Replicated isotope analysis 150.5 9.25 -0.43 0.65 2.404 18.6 0.1 MD02-2594 150-151 160.5 9.812 -0.02 0.96 2.313 18.2 0.35 MD02-2594 160-161 170.5 10.383 -0.28 0.6 2.474 19 0.22 MD02-2594 170-171 176.5 10.72 -0.25 0.75 2.438 18.8 0.22 MD02-2594 176-177 180.5 10.946 -0.36 0.73 2.575 19.4 0.23 MD02-2594 180-181 Replicated Mg/Ca analysis 184.5 11.17 -0.13 0.94 2.398 18.6 0.23 MD02-2594 184-185 190.5 11.508 -0.33 0.56 2.392 18.6 -0.05 MD02-2594 190-191 194.5 11.733 0.15 0.84 2.302 18.2 0.28 MD02-2594 194-195 200.5 12.071 -0.02 0.68 2.332 18.3 0.09 MD02-2594 200-201 204.5 12.296 0.44 0.83 2.307 18.2 0.48 MD02-2594 204-205 210.5 12.634 0.21 0.68 2.348 18.4 0.25 MD02-2594 210-211 213.5 12.958 0.41 0.71 2.2 17.7 0.28 MD02-2594 213-214 219.5 13.606 0.14 0.82 2.221 17.8 0.04 MD02-2594 219-220 220.5 13.714 0.63 0.71 2.256 17.9 0.51 MD02-2594 220-221 Replicated isotope analysis 221.5 13.821 0.27 0.74 2.186 17.6 0.03 MD02-2594 221-222 226.5 14.361 0.52 0.61 2.262 18 0.28 MD02-2594 226-227 230.5 14.792 0.5 0.94 2.4 18.6 0.31 MD02-2594 230-231 236.5 15.439 0.78 0.74 2.347 18.4 0.48 MD02-2594 236-237 240.5 15.872 0.8 0.72 2.362 18.4 0.48 MD02-2594 240-241 244.5 16.303 0.93 0.64 2.243 17.9 0.5 MD02-2594 244-245 249.5 16.872 0.94 0.68 2.253 17.9 0.51 MD02-2594 249-250 253.5 17.333 0.68 0.77 2.21 17.7 0.21 MD02-2594 253-254 259.5 17.697 0.68 0.56 2.1 17.1 0.1 MD02-2594 259-260 260.5 17.73 0.65 0.49 2.147 17.4 0.12 MD02-2594 260-261 Replicated isotope analysis; Replicated Mg/Ca analysis 262.5 17.798 0.86 0.69 2.131 17.3 0.32 MD02-2594 262-263 267.5 17.965 0.9 0.51 2.077 17 0.3 MD02-2594 267-268 270.5 18.066 0.55 0.44 2.104 17.2 -0.01 MD02-2594 270-271 271.5 18.099 0.75 0.67 2.133 17.3 0.22 MD02-2594 271-272 274 18.183 0.63 0.94 2.326 18.3 0.29 MD02-2594 273-275 277.5 18.3 0.79 0.75 2.465 18.9 0.6 MD02-2594 277-278 279.5 18.367 0.97 0.66 2.262 18 0.58 MD02-2594 279-280 281.5 18.434 1.02 0.79 2.549 19.3 0.91 MD02-2594 281-282 283.5 18.501 1.18 0.92 2.117 17.2 0.65 MD02-2594 283-284 285.5 18.568 0.93 0.7 2.029 16.8 0.3 MD02-2594 285-286 287.5 18.635 0.87 0.71 2.016 16.7 0.24 MD02-2594 287-288 289.5 18.702 1.1 0.82 1.805 15.5 0.21 MD02-2594 289-290 Replicated isotope analysis; Replicated Mg/Ca analysis 291.5 18.769 0.78 0.9 2.199 17.7 0.35 MD02-2594 291-292 293.5 18.836 0.71 0.92 2.328 18.3 0.41 MD02-2594 293-294 295.5 18.903 0.74 0.6 2.192 17.6 0.3 MD02-2594 295-296 297.5 19.25 0.99 1.17 2.22 17.8 0.59 MD02-2594 297-298 301.5 19.944 0.46 0.52 1.932 16.2 -0.26 MD02-2594 301-302 303.5 20.291 0.84 0.97 1.929 16.2 0.13 MD02-2594 303-304 305.5 20.637 0.77 0.66 2.084 17.1 0.23 MD02-2594 305-306 307.5 20.985 0.88 0.88 2.055 16.9 0.33 MD02-2594 307-308 309.5 21.331 0.97 0.62 2.127 17.3 0.49 MD02-2594 309-310 311.5 21.678 0.82 0.89 2.027 16.7 0.23 MD02-2594 311-312 313.5 22.025 0.92 0.86 2.081 17 0.39 MD02-2594 313-314 315.5 22.372 0.71 0.95 2.172 17.5 0.28 MD02-2594 315-316 317.5 22.719 0.8 0.68 2.109 17.2 0.3 MD02-2594 317-318 319.5 23.066 0.72 0.79 2.044 16.8 0.16 MD02-2594 319-320 321.5 23.56 0.71 0.91 2.104 17.2 0.24 MD02-2594 321-322 323.5 24.054 0.74 0.91 2.289 18.1 0.49 MD02-2594 323-324 325.5 24.548 0.62 0.76 2.171 17.5 0.2 MD02-2594 325-326 327.5 25.042 0.97 0.82 2.126 17.3 0.52 MD02-2594 327-328 329.5 25.537 0.81 0.63 2.259 17.9 0.53 MD02-2594 329-330 331.5 26.03 0.8 0.59 1.989 16.5 0.24 MD02-2594 331-332 333.5 26.524 0.77 0.98 2.145 17.4 0.41 MD02-2594 333-334 335.5 27.019 0.73 0.77 1.965 16.4 0.17 MD02-2594 335-336 337.5 27.513 0.88 0.83 1.912 16.1 0.24 MD02-2594 337-338 339.5 28.007 0.57 0.96 2.035 16.8 0.07 MD02-2594 339-340 341.5 28.5 0.68 0.85 1.997 16.6 0.14 MD02-2594 341-342 345.5 29.489 0.81 1.02 1.983 16.5 0.24 MD02-2594 345-346 347.5 29.72 0.66 0.61 2.531 19.2 0.67 MD02-2594 347-348 349.5 29.95 0.71 0.9 2.281 18.1 0.5 MD02-2594 349-350 351.5 30.181 0.55 0.73 2.446 18.8 0.52 MD02-2594 351-352 353.5 30.411 0.81 1.05 2.255 17.9 0.61 MD02-2594 353-354 355.5 30.642 0.69 0.89 2.07 17 0.3 MD02-2594 355-356 357.5 30.872 0.66 1.13 2.185 17.6 0.42 MD02-2594 357-358 359.5 31.103 0.65 0.9 2.015 16.7 0.24 MD02-2594 359-360 361.5 31.334 0.62 0.83 1.987 16.5 0.2 MD02-2594 361-362 363.5 31.564 0.75 0.92 1.933 16.2 0.27 MD02-2594 363-364 365.5 31.795 0.37 0.93 2.223 17.8 0.23 MD02-2594 365-366 Replicated isotope analysis; Replicated Mg/Ca analysis 367.5 32.025 0.63 0.97 2.132 17.3 0.39 MD02-2594 367-368 369.5 32.256 0.71 1.05 2.093 17.1 0.44 MD02-2594 369-370 371.5 32.486 0.64 0.9 2.165 17.5 0.45 MD02-2594 371-372 373.5 32.717 0.41 0.71 2.358 18.4 0.4 MD02-2594 373-374 375.5 33.063 0.54 0.93 2.146 17.4 0.31 MD02-2594 375-376 379.5 33.409 0.37 1.14 2.391 18.6 0.4 MD02-2594 379-380 381.5 33.639 0.47 0.81 2.294 18.1 0.4 MD02-2594 381-382 383.5 33.87 0.52 0.82 2.24 17.9 0.39 MD02-2594 383-384 385.5 34.1 0.4 0.93 2.26 18 0.29 MD02-2594 385-386 387.5 34.331 0.33 1.03 2.265 18 0.21 MD02-2594 387-388 389.5 34.562 0.53 1.03 2.179 17.6 0.32 MD02-2594 389-390 391.5 34.792 0.42 0.88 2.186 17.6 0.23 MD02-2594 391-392 393.5 35.023 0.31 0.92 2.263 18 0.21 MD02-2594 393-394 395.5 35.253 0.37 0.98 2.236 17.8 0.27 MD02-2594 395-396 397.5 35.484 0.56 0.84 1.982 16.5 0.2 MD02-2594 397-398 Replicated Mg/Ca analysis 399.5 35.714 0.32 0.96 2.097 17.1 0.1 MD02-2594 399-400 401.5 35.945 0.53 0.86 2.371 18.5 0.61 MD02-2594 401-402 403.5 36.175 0.48 0.97 2.256 17.9 0.46 MD02-2594 403-404 405.5 36.406 0.26 1.05 2.3 18.2 0.29 MD02-2594 405-436 407.5 36.653 0.62 0.97 2.198 17.6 0.54 MD02-2594 407-408 409.5 36.899 0.58 1.13 2.308 18.2 0.63 MD02-2594 409-410 411.5 37.146 0.71 0.83 2.092 17.1 0.51 MD02-2594 411-412 413.5 37.392 0.63 1.02 2.224 17.8 0.56 MD02-2594 413-414 415.5 37.639 0.43 0.86 2.19 17.6 0.28 MD02-2594 415-416 417.5 37.886 0.42 1.11 2.211 17.7 0.26 MD02-2594 417-418 419.5 38.133 0.56 0.82 2.069 17 0.23 MD02-2594 419-420 421.5 38.379 0.63 0.83 2.143 17.4 0.38 MD02-2594 421-422 423.5 38.626 0.6 0.77 2.271 18 0.51 MD02-2594 423-424 425.5 38.873 0.42 0.76 2.193 17.6 0.26 MD02-2594 425-426 427.5 39.119 0.55 0.93 2.074 17 0.26 MD02-2594 427-428 429.5 39.365 0.26 0.68 2.103 17.2 -0.01 MD02-2594 429-430 431.5 39.612 0.52 0.8 1.93 16.2 0.06 MD02-2594 431-432 Replicated Mg/Ca analysis 433.5 39.859 0.35 0.89 1.974 16.5 -0.06 MD02-2594 433-434 435.5 40.106 0.11 0.97 2.173 17.5 -0.07 MD02-2594 435-436 437.5 40.353 0.42 0.63 2.009 16.6 0.06 MD02-2594 437-438 439.5 40.599 0.21 0.76 2.115 17.2 -0.03 MD02-2594 439-440 441.5 40.846 0.03 0.89 2.114 17.2 -0.2 MD02-2594 441-442 443.5 41.092 0.34 0.91 2.116 17.2 0.12 MD02-2594 443-444 445.5 41.339 0.37 0.75 2.188 17.6 0.23 MD02-2594 445-446 447.5 41.585 0.43 0.75 2.096 17.1 0.18 MD02-2594 447-448 449.5 41.832 0.26 0.65 2.07 17 -0.03 MD02-2594 449-450 451.5 42.078 0.21 0.85 2.264 18 0.11 MD02-2594 451-452 453.5 42.325 0.25 0.84 2.084 17.1 -0.04 MD02-2594 453-454 455.5 42.571 0.34 0.88 2.261 18 0.26 MD02-2594 455-456 457.5 42.819 0.3 0.78 2.211 17.7 0.18 MD02-2594 457-458 459.5 43.065 0.48 1.01 2.269 18 0.43 MD02-2594 459-460 Replicated Mg/Ca analysis 461.5 43.312 0.57 0.92 2.083 17 0.32 MD02-2594 461-462 463.5 43.559 0.5 0.97 2.081 17 0.24 MD02-2594 463-464 465.5 43.805 0.39 0.99 2.125 17.3 0.17 MD02-2594 465-466 467.5 44.125 0.43 0.87 2.16 17.5 0.25 MD02-2594 467-468 469.5 44.444 0.48 0.75 2.137 17.3 0.3 MD02-2594 469-470 Replicated isotope analysis 471.5 44.764 0.39 0.92 2.137 17.3 0.22 MD02-2594 471-472 473.5 45.084 0.37 0.81 2.309 18.2 0.38 MD02-2594 473-474 475.5 45.405 0.36 0.94 2.101 17.1 0.16 MD02-2594 475-476 477.5 45.724 0.42 0.69 2.176 17.5 0.29 MD02-2594 477-478 479.5 46.044 0.21 0.61 2.333 18.3 0.25 MD02-2594 479-480 481.5 46.364 0.45 0.8 2.365 18.5 0.52 MD02-2594 481-482 483.5 46.683 0.59 1.02 2.336 18.3 0.62 MD02-2594 483-484 485.5 47.003 0.34 0.66 2.125 17.3 0.11 MD02-2594 485-486 487.5 47.323 0.33 0.88 2.302 18.2 0.26 MD02-2594 487-488 489.5 47.642 0.64 0.94 2.154 17.4 0.41 MD02-2594 489-490 491.5 47.962 0.48 0.51 2.087 17.1 0.16 MD02-2594 491-492 493.5 48.282 0.65 0.83 1.958 16.4 0.19 MD02-2594 493-494 Replicated Mg/Ca analysis 495.5 48.603 0.3 0.79 2.036 16.8 -0.05 MD02-2594 495-496 497.5 48.922 0.57 1.09 2.072 17 0.29 MD02-2594 497-498 Replicated Mg/Ca analysis 499.5 49.242 0.44 1.02 2.153 17.4 0.27 MD02-2594 499-500 501.5 49.562 0.35 0.92 2.1 17.1 0.13 MD02-2594 501-502 503.5 49.881 0.44 0.7 2.132 17.3 0.26 MD02-2594 503-504 505.5 50.201 0.19 0.87 1.989 16.5 -0.14 MD02-2594 505-506 507.5 50.521 0.17 0.73 2.108 17.2 0 MD02-2594 507-508 509.5 50.841 0.49 1.19 2.17 17.5 0.39 MD02-2594 509-510 511.5 51.161 0.69 0.79 1.875 15.9 0.26 MD02-2594 511-512 Replicated isotope analysis; Replicated Mg/Ca analysis 515.5 51.801 0.34 0.83 2.254 17.9 0.34 MD02-2594 515-516 Replicated Mg/Ca analysis 517.5 52.12 0.29 0.84 2.172 17.5 0.24 MD02-2594 517-518 519.5 52.44 0.39 0.69 2.191 17.6 0.4 MD02-2594 519-520 521.5 52.76 0.54 0.96 2.27 18 0.64 MD02-2594 521-522 523.5 53.079 0.73 0.84 2.281 18.1 0.81 MD02-2594 523-524 525.5 53.399 0.57 0.68 2.214 17.7 0.54 MD02-2594 525-526 527.5 53.719 0.54 0.46 2.292 18.1 0.57 MD02-2594 527-528 529.5 54.039 0.36 1.08 2.274 18 0.37 MD02-2594 529-530 531.5 54.358 0.19 0.87 2.403 18.6 0.32 MD02-2594 531-532 533.5 54.679 0.43 0.96 2.36 18.4 0.52 MD02-2594 533-534 537.5 55.295 0.54 0.78 2.03 16.8 0.28 MD02-2594 537-538 Replicated Mg/Ca analysis 541.5 55.873 0.61 0.49 2.261 18 0.58 MD02-2594 541-542 Replicated Mg/Ca analysis 545.5 56.432 0.34 0.5 2.193 17.6 0.23 MD02-2594 545-546 547.5 56.703 0.33 0.31 2.176 17.5 0.23 MD02-2594 547-548 549.5 56.973 0.38 0.65 2.36 18.4 0.5 MD02-2594 549-550 551.5 57.243 0.54 0.85 2.352 18.4 0.67 MD02-2594 551-552 553.5 57.514 0.63 0.87 2.489 19 0.92 MD02-2594 553-554 555.5 57.784 0.53 0.73 2.295 18.1 0.64 MD02-2594 555-556 557.5 58.055 0.41 0.68 2.259 17.9 0.48 MD02-2594 557-558 559.5 58.325 0.74 0.81 2.297 18.1 0.84 MD02-2594 559-560 563.5 58.866 0.19 0.56 2.405 18.6 0.37 MD02-2594 563-564 Replicated isotope analysis 565.5 59.136 0.54 0.77 2.159 17.4 0.46 MD02-2594 565-566 567.5 59.406 0.56 0.72 2.464 18.9 0.8 MD02-2594 567-568 569.5 59.677 0.61 0.56 2.307 18.2 0.7 MD02-2594 569-570 571.5 59.947 0.56 0.69 2.507 19.1 0.84 MD02-2594 571-572 573.5 60.217 0.67 0.44 2.318 18.2 0.76 MD02-2594 573-574 575.5 60.488 0.63 0.85 2.212 17.7 0.6 MD02-2594 575-576 577.5 60.758 0.79 0.81 2.206 17.7 0.74 MD02-2594 577-578 581.5 61.299 0.77 0.82 2.137 17.3 0.62 MD02-2594 581-582 583.5 61.569 0.85 0.58 2.075 17 0.59 MD02-2594 583-584 585.5 61.839 0.63 0.67 2.388 18.6 0.65 MD02-2594 585-586 587.5 62.11 0.78 0.61 2.349 18.4 0.73 MD02-2594 587-588 589.5 62.38 0.77 0.97 2.365 18.5 0.71 MD02-2594 589-590 591.5 62.65 0.74 0.95 2.248 17.9 0.55 MD02-2594 591-592 593.5 62.921 0.89 0.63 2.19 17.6 0.61 MD02-2594 593-594 597.5 63.462 0.77 0.63 2.275 18 0.57 MD02-2594 597-598 599.5 63.732 0.32 0.69 2.169 17.5 0.01 MD02-2594 599-600 601.5 64.002 0.71 0.65 2.146 17.4 0.36 MD02-2594 601-602 603.5 64.273 0.88 0.65 1.972 16.4 0.34 MD02-2594 603-604 Replicated Mg/Ca analysis 605.5 64.543 0.67 0.69 2.082 17 0.26 MD02-2594 605-606 607.5 64.813 0.51 0.84 2.129 17.3 0.16 MD02-2594 607-608 609.5 65.084 0.64 0.76 1.955 16.3 0.09 MD02-2594 609-610 611.5 65.354 0.79 0.82 2.021 16.7 0.32 MD02-2594 611-612 613.5 65.624 0.8 0.8 1.951 16.3 0.27 MD02-2594 613-614 615.5 65.895 0.47 0.53 2.196 17.6 0.23 MD02-2594 615-616 Replicated Mg/Ca analysis 617.5 66.165 0.43 0.72 2.024 16.7 0.02 MD02-2594 617-618 619.5 66.435 0.69 0.96 1.974 16.5 0.22 MD02-2594 619-620 621.5 66.706 0.75 1 1.899 16 0.19 MD02-2594 621-622 623.5 66.976 0.82 0.94 2 16.6 0.38 MD02-2594 623-624 625.5 67.246 0.69 0.91 2.05 16.9 0.28 MD02-2594 625-626 627.5 67.517 0.76 0.76 1.983 16.5 0.25 MD02-2594 627-628 629.5 67.787 0.89 0.89 2.035 16.8 0.44 MD02-2594 629-630 631.5 68.058 0.9 0.78 2.023 16.7 0.44 MD02-2594 631-632 633.5 68.328 0.69 0.96 1.914 16.1 0.13 MD02-2594 633-634 635.5 68.598 0.63 0.99 2.015 16.7 0.21 MD02-2594 635-636 637.5 68.869 0.83 0.87 1.846 15.7 0.24 MD02-2594 637-638 639.5 69.139 0.71 0.78 1.746 15.1 0.01 MD02-2594 639-640 641.5 69.409 0.62 0.79 1.886 15.9 0.11 MD02-2594 641-642 643.5 69.68 0.63 0.98 1.797 15.4 0.02 MD02-2594 643-644 645.5 69.95 0.47 0.86 2.006 16.6 0.11 MD02-2594 645-646 647.5 70.22 0.73 1.04 1.937 16.2 0.31 MD02-2594 647-648 649.5 70.491 0.49 0.78 1.834 15.6 -0.04 MD02-2594 649-650 651.5 70.761 0.33 0.93 1.955 16.3 -0.04 MD02-2594 651-652 653.5 70.856 0.38 0.86 2.092 17.1 0.18 MD02-2594 653-654 655.5 70.952 0.22 0.86 1.935 16.2 -0.15 MD02-2594 655-656 657.5 71.047 0.18 0.8 1.973 16.4 -0.13 MD02-2594 657-658 659.5 71.142 -0.23 0.81 2.072 17 -0.42 MD02-2594 659-660 661.5 71.237 0.26 0.86 1.962 16.4 -0.04 MD02-2594 661-662 663.5 71.332 0.27 0.73 2.231 17.8 0.28 MD02-2594 663-664 665.5 71.428 0.08 1.02 2.137 17.3 0 MD02-2594 665-666 667.5 71.523 0.03 0.98 2.01 16.7 -0.18 MD02-2594 667-668 669.5 71.618 -0.09 0.88 1.921 16.2 -0.4 MD02-2594 669-670 671.5 71.713 0 0.84 2.037 16.8 -0.16 MD02-2594 671-672 673.5 71.809 0.09 0.81 2.128 17.3 0.04 MD02-2594 673-674 675.5 71.904 0.16 0.81 2.21 17.7 0.19 MD02-2594 675-676 679.5 72.094 -0.01 0.75 2.234 17.8 0.04 MD02-2594 679-680 681.5 72.19 0.3 0.89 2.151 17.4 0.26 MD02-2594 681-682 683.5 72.285 0.24 0.85 2.166 17.5 0.22 MD02-2594 683-684 685.5 72.38 0.13 0.89 2.311 18.2 0.25 MD02-2594 685-686 Replicated Mg/Ca analysis 687.5 72.673 0.42 0.9 1.993 16.6 0.2 MD02-2594 687-688 689.5 72.965 0.17 0.95 2.042 16.8 0.01 MD02-2594 689-690 691.5 73.258 0.28 0.94 2.049 16.9 0.11 MD02-2594 691-692 693.5 73.551 0.06 1.09 2.111 17.2 -0.06 MD02-2594 693-694 695.5 73.843 0.18 1.02 2.213 17.7 0.15 MD02-2594 695-696 697.5 74.136 -0.09 1.11 2.003 16.6 -0.36 MD02-2594 697-698 699.5 74.429 0.11 1.06 2.17 17.5 0.03 MD02-2594 699-700 701.5 74.721 0.05 0.96 2.09 17.1 -0.1 MD02-2594 701-702 703.5 75.014 0.05 1.13 2.091 17.1 -0.09 MD02-2594 703-704 705.5 75.307 0.03 1.25 2.187 17.6 0.02 MD02-2594 705-706 707.5 75.599 0.03 1.3 2.224 17.8 0.07 MD02-2594 707-708 709.5 75.892 0.26 0.98 2.217 17.7 0.32 MD02-2594 709-710 711.5 76.103 -0.14 1.17 2.268 18 0 MD02-2594 711-712 Replicated isotope analysis 713.5 76.315 0.19 0.98 2.211 17.7 0.31 MD02-2594 713-714 715.5 76.526 0.03 1.12 2.143 17.4 0.07 MD02-2594 715-716 719.5 76.948 0.07 1.13 2.042 16.8 -0.01 MD02-2594 719-720 721.5 77.16 0.13 1.08 2.309 18.2 0.33 MD02-2594 721-722 723.5 77.371 -0.03 1.21 2.447 18.8 0.3 MD02-2594 723-724 725.5 77.582 0.01 1.05 2.182 17.6 0.08 MD02-2594 725-726 727.5 77.793 -0.02 1.1 2.284 18.1 0.16 MD02-2594 727-728 729.5 78.005 0.1 1.05 2.256 17.9 0.25 MD02-2594 729-730 731.5 78.216 0.23 1.27 2.026 16.7 0.13 MD02-2594 731-732 Replicated Mg/Ca analysis 733.5 78.427 -0.05 1.14 2.171 17.5 0 MD02-2594 733-734 735.5 78.638 -0.09 1.22 2.051 16.9 -0.19 MD02-2594 735-736 739.5 79.061 0.05 1.11 2.236 17.8 0.13 MD02-2594 739-740 741.5 79.272 0 1.38 2.26 18 0.12 MD02-2594 741-742 743.5 79.483 0.1 1.17 2.197 17.6 0.16 MD02-2594 743-744 745.5 79.695 -0.09 0.93 2.092 17.1 -0.14 MD02-2594 745-746 747.5 79.906 0.16 1.27 2.2 17.7 0.24 MD02-2594 747-748 749.5 80.117 0.07 1.01 2.224 17.8 0.17 MD02-2594 749-750