# Western Atlantic Late Paleogene Foraminiferal Stable Isotope and Mg/Ca Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/15293 # # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/katz2011/katz2011asp5mg-ca.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Paleoceanography #-------------------- # Contribution_Date # Date: 2013-10-25 #-------------------- # Title # Study_Name: Western Atlantic Late Paleogene Foraminiferal Stable Isotope and Mg/Ca Data #-------------------- # Investigators # Investigators: Katz, M.E.; Cramer, B.S.; Toggweiler, J.R.; Esmay, G.; Liu, C.; Miller, K.G.; Rosenthal, Y.; Wade, B.S.; Wright, J.D. #-------------------- # Description_and_Notes # Description: Benthic foraminifera stable isotope and Mg/Ca data from 2 western North Atlantic sediment cores from the late middle Eocene to early Oligocene (~38 to 28 million years ago) #-------------------- # Publication # Authors: Miriam E. Katz, Benjamin S. Cramer, J.R. Toggweiler, Gar Esmay, Chengjie Liu, Kenneth G. Miller, Yair Rosenthal, Bridget S. Wade, and James D. Wright # Published_Date_or_Year: 2011-05-27 # Published_Title: Impact of Antarctic Circumpolar Current Development on Late Paleogene Ocean Structure # Journal_Name: Science # Volume: 332 # Edition: # Issue: 6033 # Pages: 1076-1079 # DOI: 10.1126/science.1202122 # Online_Resource: www.sciencemag.org/cgi/content/full/332/6033/1076/DC1 # Full_Citation: # Abstract: Global cooling and the development of continental-scale Antarctic glaciation occurred in the late middle Eocene to early Oligocene (~38 to 28 million years ago), accompanied by deep-ocean reorganization attributed to gradual Antarctic Circumpolar Current (ACC) development. Our benthic foraminiferal stable isotope comparisons show that a large d13C offset developed between mid-depth (~600 meters) and deep (>1000 meters) western North Atlantic waters in the early Oligocene, indicating the development of intermediate-depth d13C and O2 minima closely linked in the modern ocean to northward incursion of Antarctic Intermediate Water. At the same time, the ocean's coldest waters became restricted to south of the ACC, probably forming a bottom-ocean layer, as in the modern ocean. We show that the modern four-layer ocean structure (surface, intermediate, deep, and bottom waters) developed during the early Oligocene as a consequence of the ACC. #------------------ # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: OCE 06-23256, OCE 09-28607, EAR03-07112, EAR05-06720 #------------------ # Site_Information # Site_Name: ASP-5 # Location: Ocean>Atlantic Ocean>North Atlantic Ocean # Country: # Northernmost_Latitude: 33.1333 # Southernmost_Latitude: 33.1333 # Easternmost_Longitude: -77.25 # Westernmost_Longitude: -77.25 # Elevation: m #------------------ # Data_Collection # Collection_Name: ASP-5-2011MgCa # Earliest_Year: 38065000 # Most_Recent_Year: 22795000 # Time_Unit: Cal. Year BP # Core_Length: m # Notes: #------------------ # Chronology: # # # # # #---------------- # Variables # # Data variables follow (have no #) # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # Table S2. ASP-5 Mg/Ca analyses ## depth_m depth, , , mbsf, , , , ,N ## age_calmaBP age, , , millions of calendar years before present, , , , ,N ## Mg/Ca Magnesium/Calcium, , , mmol/mol, , , , ,N ## Mg/Caplot Magnesium/Calcium plotted, , , mmol/mol, , , , ,N ## notes notes - Taxa analyzed, , , , , , , , #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: depth_m age_calmaBP Mg/Ca Mg/Caplot notes 69.39 22.795 3.63 3.63 Oridorsalis spp. 71.64 22.925 2.29 Cibicidoides compressus 72.31 22.964 2.45 Cibicidoides pachyderma/C. compressus 73.03 23.005 3.83 3.83 Oridorsalis spp. 73.99 23.061 2.26 Cibicidoides compressus 74.75 23.105 3.08 Cibicidoides compressus 75.51 23.149 2.41 Cibicidoides compressus 76.96 23.232 3.29 Cibicidoides compressus 81.53 23.496 4.38 4.38 Oridorsalis spp. 81.79 23.511 3.65 3.65 Oridorsalis spp. 82.47 23.551 3.94 3.94 Oridorsalis spp. 83.29 23.598 2.48 Cibicidoides compressus 83.44 23.607 3.94 3.94 Oridorsalis spp. 89.31 23.946 4.01 4.01 Oridorsalis spp. 89.84 23.976 3.24 3.24 Oridorsalis spp. 89.84 23.976 2.10 Cibicidoides pachyderma 90.06 23.989 3.65 3.65 Oridorsalis spp. 90.06 23.989 2.63 Cibicidoides pachyderma 90.26 24.001 4.56 4.56 Oridorsalis spp. 90.26 24.001 3.76 3.76 Cibicidoides crebbsi 91.92 24.097 3.51 3.51 Oridorsalis spp. 91.92 24.097 2.31 Cibicidoides compressus 94.34 24.236 3.36 3.36 Oridorsalis spp. 94.34 24.236 3.41 3.41 Cibicidoides crebbsi 94.72 24.258 3.09 3.09 Oridorsalis spp. 99.44 24.531 3.80 3.80 Oridorsalis spp. 99.44 24.531 3.39 3.39 Cibicidoides crebbsi 100.20 24.575 3.92 3.92 Cibicidoides crebbsi 113.42 25.339 3.02 3.02 Oridorsalis spp. 115.90 25.436 3.10 3.10 Oridorsalis spp. 118.98 25.660 3.20 3.20 Oridorsalis spp. 121.62 25.812 3.54 3.54 Oridorsalis spp. 128.70 25.968 3.15 3.15 Oridorsalis spp. 132.66 26.017 3.01 3.01 Oridorsalis spp. 134.32 26.037 2.91 2.91 Oridorsalis spp. 137.24 26.073 2.64 2.64 Oridorsalis spp. 137.24 26.073 2.63 2.63 Cibicidoides crebbsi 142.11 26.133 3.26 3.26 Oridorsalis spp. 146.20 26.183 3.25 3.25 Oridorsalis spp. 149.89 26.228 3.77 3.77 Oridorsalis spp. 158.57 26.335 2.53 Cibicidoides pachyderma/C. praemundulus/C. cicatricosus 163.45 26.394 2.80 2.80 Cibicidoides praemundulus 167.26 26.441 2.27 Cibicidoides pachyderma 168.02 26.450 3.09 3.09 Oridorsalis spp. 170.00 26.475 2.61 Cibicidoides praemundulus/C. cicatricosus/C. pachyderma 173.81 26.521 2.75 2.75 Cibicidoides cicatricosus 179.76 26.594 3.42 3.42 Oridorsalis spp. 186.74 26.680 2.99 2.99 Oridorsalis spp. 191.03 26.851 3.08 3.08 Oridorsalis spp. 197.46 27.216 3.44 3.44 Cibicidoides praemundulus 200.48 27.388 3.87 Cibicidoides mixed 202.92 27.526 2.62 2.62 Cibicidoides praemundulus 207.65 27.795 2.73 2.73 Cibicidoides praemundulus 210.24 27.942 2.48 Cibicidoides praemundulus/C. pachyderma 210.82 27.975 2.81 2.81 Cibicidoides praemundulus 223.34 28.686 3.16 3.16 Cibicidoides praemundulus 229.87 29.056 3.50 3.50 Cibicidoides praemundulus 232.79 29.222 3.27 3.27 Cibicidoides praemundulus 232.79 29.222 4.26 4.26 Cibicidoides mexicanus 233.55 29.265 3.36 3.36 Cibicidoides mexicanus 233.55 29.265 3.58 Cibicidoides praemundulus/C. pachyderma 239.47 30.183 2.99 Cibicidoides mixed 243.05 30.972 3.34 3.34 Cibicidoides praemundulus 245.44 31.499 2.89 2.89 Oridorsalis spp. 245.44 31.499 3.29 3.29 Cibicidoides mexicanus 248.95 32.273 3.86 3.86 Cibicidoides mexicanus 250.32 32.575 3.37 3.37 Cibicidoides mexicanus 250.44 32.602 3.29 3.29 Cibicidoides mexicanus 250.44 32.602 2.78 2.78 Oridorsalis spp. 251.02 32.730 3.86 3.86 Cibicidoides mexicanus 251.02 32.730 4.12 4.12 Cibicidoides mexicanus 251.31 32.794 3.57 3.57 Cibicidoides mexicanus 251.98 32.941 3.56 3.56 Cibicidoides mexicanus 252.87 33.138 3.50 3.50 Cibicidoides mexicanus 253.67 33.314 3.42 3.42 Oridorsalis spp. 253.67 33.314 3.74 3.74 Cibicidoides praemundulus 253.78 33.338 3.20 3.20 Oridorsalis spp. 253.78 33.338 3.58 3.58 Cibicidoides mexicanus 254.13 33.416 3.63 3.63 Cibicidoides mexicanus 254.13 33.416 3.17 3.17 Oridorsalis spp. 254.13 33.416 3.04 3.04 Oridorsalis spp. 256.87 34.020 4.63 4.63 Cibicidoides praemundulus 258.27 38.065 4.53 4.53 Cibicidoides praemundulus 258.27 38.065 4.36 4.36 Oridorsalis spp. 258.27 38.065 4.99 4.99 Oridorsalis spp.