# Labrador Sea Oxygen Isotope, Geochemistry and Lithology Data Covering the Last 40,000 Years #----------------------------------------------------------------------- # World Data Service 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. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/23431 # Description: NOAA Landing Page # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/hoffman2018/hoffman2018-008twc-bwt.txt # Description: NOAA location of the template # # Archive: Paleoceanography # # Dataset_DOI: # # Parameter_Keywords: oxygen isotopes, geochemistry, lithology, chronology #--------------------------------------- # Contribution_Date # Date: 2018-02-26 #--------------------------------------- # File_Last_Modified_Date # Date: 2018-02-26 #--------------------------------------- # Title # Study_Name: Labrador Sea Oxygen Isotope, Geochemistry and Lithology Data Covering the Last 40,000 Years #--------------------------------------- # Investigators # Investigators: Hoffman, Jeremy S.; Clark, Peter U.; Mix, Alan C.; Haley, Brian A. #--------------------------------------- # Description_Notes_and_Keywords # Description: XRF measurements performed at the Bedford Institute of Oceanography. XRD performed by John Andrews at INSTAAR. See dissertation chapter for details. Detailed metadata available from the Oregon State University Stable Isotope Lab. # Provided Keywords: Glacial, last deglacial #--------------------------------------- # Publication # Authors: Hoffman, J.S. # Published_Date_or_Year: 2016 # Published_Title: Ocean Temperature Variability during the Late Pleistocene # Journal_Name: Ph.D. Dissertation # Volume: # Edition: # Issue: # Pages: # Report Number: # DOI: # Online_Resource: # Full_Citation: Hoffman, J.S., 2016, Ocean Temperature Variability during the Late Pleistocene; Ph.D. Dissertation, Oregon State University, Corvallis, OR # Abstract: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: MG&G 1335197 #--------------------------------------- # Site Information # Site_Name: HU2001043-008 # Location: North Atlantic Ocean # Country: # Northernmost_Latitude: 48.2 # Southernmost_Latitude: 48.2 # Easternmost_Longitude: -45.9 # Westernmost_Longitude: -45.9 # Elevation: -990 #--------------------------------------- # Data_Collection # Collection_Name: HU2001043-008twc Trace+BWT Hoffman2018 # First_Year: 22963 # Last_Year: 9186 # Time_Unit: cal yr BP # Core_Length: # Notes: trigger weight core (twc) #--------------------------------------- # Chronology_Information # Chronology: # UCI Sample ID Sample Name Species Mean Core Depth (cm) Fraction Modern ± D14C (‰) ± 14C age (BP) ± # 159424 HU2001043-008twc_0-2cm N. pachyderma & G. bulloides 1 0.7105 0.0019 -289.5 1.9 2745 25 # 159430 HU2001043-008twc_19-21cm N. pachyderma & G. bulloides 20 0.3449 0.0011 -655.1 1.1 8550 25 # 169223 HU2001043-008twc_33-35cm N. pachyderma & G. bulloides 34 0.2061 0.0009 -793.9 0.9 12690 40 # RAPID HU2001043-008twc_33-35cm_rapid N. pachyderma & G. bulloides 34 0.2090 0.0044 -791.0 4.4 12570 170 # 159429 HU2001043-008twc_51-53cm N. pachyderma (s) 52 0.2023 0.0008 -797.7 0.8 12840 35 # 159428 HU2001043-008twc_69-71cm N. pachyderma (s) 70 0.1800 0.0007 -820.0 0.7 13775 35 # 169224 HU2001043-008twc_77-79cm N. pachyderma (s) 78 0.1571 0.0009 -842.9 0.9 14870 45 # RAPID HU2001043-008twc_77-79cm_rapid N. pachyderma (s) 78 0.1586 0.0038 -841.4 3.8 14790 200 # 169225 HU2001043-008twc_94-96cm N. pachyderma (s) 95 0.1459 0.0009 -854.1 0.9 15465 50 # RAPID HU2001043-008twc_94-96cm_rapid N. pachyderma (s) 95 0.1415 0.0038 -858.5 3.8 15710 220 # 159425 HU2001043-008twc_99-101cm N. pachyderma (s) 100 0.1498 0.0009 -850.2 0.9 15250 50 # 159426 HU2001043-008twc_114-116cm N. pachyderma (s) 115 0.1386 0.0007 -861.4 0.7 15875 40 # 169226 HU2001043-008twc_139-141cm N. pachyderma (s) 140 0.1131 0.0008 -886.9 0.8 17510 60 # RAPID HU2001043-008twc_139-141cm_rapid N. pachyderma (s) 140 0.1139 0.0040 -886.1 4.0 17450 290 # 159427 HU2001043-008twc_149-151cm N. pachyderma (s) 150 0.1075 0.0007 -892.5 0.7 17920 60 # 169227 HU2001043-008twc_179-181cm N. pachyderma (s) 180 0.0966 0.0008 -903.4 0.8 18770 70 # RAPID HU2001043-008twc_179-181cm_rapid N. pachyderma (s) 180 0.0921 0.0040 -907.9 4.0 19160 350 # 159431 HU2001043-008twc_199-201cm N. pachyderma (s) 200 0.0886 0.0006 -911.4 0.6 19470 60 # # Radiocarbon concentrations are given as fractions of the Modern standard, D14C, and conventional radiocarbon age, following the conventions of # Stuiver and Polach (Radiocarbon, v. 19, p.355, 1977). # Sample preparation backgrounds have been subtracted, based on measurements of 14C-free calcite. # All results have been corrected for isotopic fractionation according to the conventions of Stuiver and Polach (1977), with d13C values measured on # prepared graphite using the AMS spectrometer. These can differ from d13C of the original material, if fractionation ocurred during sample graphitization # or the AMS measurement, and are not shown. # All radiocarbon dates were calculated using the MARINE13 calibration curve (Reimer et al, 2013) with standard 400-year reservoir correction using OxCal 4.2 (Bronk Ramsey, 2009). # Radio carbon dates were measured at the University of California-Irvine under the supervision of John Southon. #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## depth_cm depth,,,centimeter,,paleoceanography,,,N, ## Marine13_age age,,,calendar year before present,,paleoceanography,,,N,OxCal v4.2.4 Bronk Ramsey (2013); r:5; MARINE13 calibration curve (Reimer et al 2013); No delta-R ## Mg/Ca magnesium/calcium,M. barleeanus,,mmol/mol,,paleoceanography,,,N,daily corrections applied from multiple measurements of Oregon State internal standards BCS19 and Wiley carbonate ## BWT bottom water temperature,M. barleeanus,,degree Celsius,,climate reconstruction,,,N,using Kristsjandottir 2007; Mg/Ca = 0.658 ± 0.07 * exp(0.137 ± 0.020 * T[°C]) ## BWT_2sd bottom water temperature,M. barleeanus,two standard deviations,degree Celsius,,climate reconstruction,,,N, ## Sr/Ca strontium/calcium,M. barleeanus,,mmol/mol,,paleoceanography,,,N, ## Mn/Ca manganese/calcium,M. barleeanus,,umol/mol,,paleoceanography,,,N, ## U/Ca uranium/calcium,M. barleeanus,,nmol/mol,,paleoceanography,,,N, ## Ba/Ca barium/calcium,M. barleeanus,,umol/mol,,paleoceanography,,,N, ## notes notes,,,NA,,paleoceanography,,,N,species measured #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: N/A Depth Marine13_age Mg/Ca BWT BWT_2sd Sr/Ca Mn/Ca U/Ca Ba/Ca Species 20 9186 1.00 3.08 2.53 1.08 82.47 0.34 4.57 M. barleeanus 25 10984 1.06 3.51 3.30 1.04 72.55 0.14 3.48 M. barleeanus 25 10984 2.44 9.57 3.30 1.05 82.07 0.26 4.77 M. barleeanus 30 12781 1.35 5.24 1.57 1.05 116.42 0.28 3.36 M. barleeanus 30 12781 1.70 6.91 1.57 1.11 108.23 0.37 10.68 M. barleeanus 30 12781 1.12 3.86 1.57 1.03 104.38 0.27 2.71 M. barleeanus 32 13500 1.47 5.86 1.30 1.04 123.27 0.34 4.58 M. barleeanus 32 13500 1.50 5.99 1.30 1.08 140.56 0.29 3.66 M. barleeanus 34 14219 2.02 8.20 1.57 1.04 124.81 0.17 4.45 M. barleeanus 34 14219 1.34 5.20 1.57 1.09 105.72 0.28 4.04 M. barleeanus 34 14219 1.90 7.72 1.57 1.14 155.16 0.34 10.15 M. barleeanus 36 14255 2.07 8.37 2.42 1.03 151.35 0.22 5.58 M. barleeanus 36 14255 1.18 4.27 2.42 1.15 148.55 0.32 4.09 M. barleeanus 38 14291 1.14 4.01 1.59 1.08 215.58 0.14 3.77 M. barleeanus 38 14291 1.83 7.47 1.59 1.06 228.13 0.31 13.40 M. barleeanus 38 14291 1.08 3.63 1.59 1.09 79.48 0.19 4.06 M. barleeanus 38 14291 1.42 5.62 1.59 1.03 167.24 0.38 5.42 M. barleeanus 42 14364 1.19 4.35 1.84 1.10 166.90 0.20 3.77 M. barleeanus 44 14400 2.26 9.00 1.63 1.21 440.81 0.19 6.15 M. barleeanus 44 14400 1.99 8.07 1.63 1.07 203.87 0.17 3.84 M. barleeanus 44 14400 1.41 5.55 1.63 1.11 132.97 0.25 3.73 M. barleeanus 46 14436 1.94 7.90 1.44 1.13 143.42 0.22 6.02 M. barleeanus 48 14473 1.12 3.88 1.38 1.07 166.03 0.23 2.18 M. barleeanus 48 14473 1.40 5.50 1.38 1.01 117.46 0.19 6.24 M. barleeanus 48 14473 1.31 5.04 1.38 1.08 128.92 0.24 1.48 M. barleeanus 50 14509 1.52 6.09 1.38 1.06 242.58 0.17 2.11 M. barleeanus 50 14509 1.39 5.45 1.38 1.03 155.67 0.16 0.31 M. barleeanus 50 14509 1.72 7.01 1.38 1.07 126.01 0.15 1.66 M. barleeanus 52 14545 2.16 8.68 1.35 1.06 264.42 0.18 4.29 M. barleeanus 54 14716 1.80 7.34 1.39 1.17 298.72 1.79 22.34 M. barleeanus 54 14716 2.06 8.32 1.39 1.11 179.17 1.09 12.94 M. barleeanus 56 14888 1.50 6.00 1.54 1.09 342.63 0.88 10.62 M. barleeanus 70 16087 1.51 6.06 1.58 1.08 107.78 1.35 18.45 M. barleeanus 70 16087 1.93 7.85 1.58 1.00 201.18 2.43 31.41 M. barleeanus 72 16475 1.59 6.44 1.57 1.07 208.72 0.16 10.70 M. barleeanus 74 16862 1.67 6.79 1.54 1.08 190.28 0.21 19.04 M. barleeanus 74 16862 2.10 8.48 1.54 0.95 229.75 0.09 #N/A M. barleeanus 74 16862 1.26 4.74 1.54 1.08 212.78 0.18 6.79 M. barleeanus 74 16862 1.11 3.82 1.54 1.03 288.60 0.11 13.68 M. barleeanus 74 16862 1.69 6.88 1.54 1.06 229.66 1.33 29.57 M. barleeanus 76 17250 1.68 6.86 1.61 1.06 201.09 0.29 13.49 M. barleeanus 78 17637 1.41 5.59 1.72 1.07 171.70 0.30 14.85 M. barleeanus 78 17637 1.51 6.08 1.72 1.01 197.62 1.50 21.11 M. barleeanus 78 17637 2.25 8.97 1.72 1.04 279.06 0.89 13.22 M. barleeanus 80 17675 2.22 8.88 1.44 1.09 186.92 0.16 10.02 M. barleeanus 80 17675 1.88 7.66 1.44 0.98 195.87 1.53 22.89 M. barleeanus 85 17769 3.16 11.46 1.44 1.12 238.50 2.86 50.99 M. barleeanus 90 17863 1.52 6.12 1.76 1.05 186.58 0.29 5.27 M. barleeanus 90 17863 2.42 9.52 1.76 1.07 164.96 0.25 18.63 M. barleeanus 90 17863 2.70 10.30 1.76 1.05 193.96 1.66 20.18 M. barleeanus 95 17957 2.22 8.86 1.35 1.07 169.48 0.22 9.54 M. barleeanus 95 17957 2.28 9.07 1.35 1.22 172.14 0.33 34.00 M. barleeanus 95 17957 1.83 7.48 1.35 1.08 240.27 1.87 23.94 M. barleeanus 95 17957 2.06 8.32 1.35 1.03 243.57 1.87 33.19 M. barleeanus 100 18051 1.74 7.09 1.41 1.12 141.30 0.33 7.55 M. barleeanus 100 18051 2.24 8.96 1.41 1.07 170.34 0.44 20.22 M. barleeanus 100 18051 2.22 8.89 1.41 1.08 173.11 1.95 34.55 M. barleeanus 100 18051 1.70 6.93 1.41 1.04 154.10 1.71 20.04 M. barleeanus 105 18278 1.17 4.19 1.38 1.01 157.15 0.58 7.74 M. barleeanus 105 18278 1.12 3.90 1.38 1.06 175.76 0.22 5.86 M. barleeanus 105 18278 1.48 5.91 1.38 1.00 155.96 0.39 5.66 M. barleeanus 105 18278 1.86 7.60 1.38 1.00 232.01 0.68 11.83 M. barleeanus 105 18278 1.36 5.32 1.38 1.01 240.61 5.67 27.83 M. barleeanus 105 18278 1.42 5.61 1.38 1.01 183.93 3.72 20.67 M. barleeanus 105 18278 1.35 5.24 1.38 1.03 183.25 2.45 13.63 M. barleeanus 105 18278 1.36 5.31 1.38 1.08 183.03 4.18 24.85 M. barleeanus 105 18278 1.96 7.98 1.38 1.00 190.95 0.35 5.11 M. barleeanus 105 18278 0.95 2.71 1.38 1.04 169.41 0.25 1.98 M. barleeanus 105 18278 1.36 5.31 1.38 0.99 199.98 0.47 N/A M. barleeanus 110 18504 1.59 6.42 1.41 0.99 174.57 0.73 7.75 M. barleeanus 110 18504 1.15 4.10 1.41 1.01 121.58 0.44 6.82 M. barleeanus 110 18504 1.41 5.54 1.41 1.06 162.95 0.48 14.11 M. barleeanus 110 18504 1.61 6.52 1.41 0.94 184.02 0.65 6.30 M. barleeanus 115 18731 1.96 7.95 1.58 1.05 310.56 1.60 16.82 M. barleeanus 115 18731 1.80 7.36 1.58 0.98 210.16 0.84 5.51 M. barleeanus 115 18731 1.08 3.62 1.58 1.06 163.36 0.54 2.72 M. barleeanus 115 18731 2.40 9.43 1.58 1.03 176.75 0.72 6.25 M. barleeanus 115 18731 1.63 6.61 1.58 1.00 235.82 1.26 3.10 M. barleeanus 120 19112 1.15 4.10 1.43 1.02 138.62 0.56 5.37 M. barleeanus 120 19112 1.47 5.87 1.43 1.06 170.49 0.55 1.50 M. barleeanus 120 19112 0.89 2.21 1.43 1.01 161.54 0.28 N/A M. barleeanus 120 19112 1.15 4.10 1.43 0.98 137.54 0.70 5.09 M. barleeanus 120 19112 1.33 5.12 1.43 0.90 148.02 0.93 7.95 M. barleeanus 125 19493 1.26 4.77 1.36 1.01 173.06 0.84 6.42 M. barleeanus 125 19493 1.14 4.04 1.36 0.97 150.57 0.51 7.87 M. barleeanus 125 19493 1.06 3.48 1.36 0.99 170.67 1.42 11.75 M. barleeanus 125 19493 1.35 5.25 1.36 1.06 185.12 1.67 14.60 M. barleeanus 130 19873 1.00 3.04 1.95 1.04 186.71 0.64 6.15 M. barleeanus 135 20254 1.23 4.57 1.96 1.00 202.42 0.37 2.64 M. barleeanus 135 20254 1.28 4.85 1.96 1.02 199.05 0.49 8.81 M. barleeanus 135 20254 1.47 5.89 1.96 1.00 251.58 0.44 7.79 M. barleeanus 135 20254 2.62 10.09 1.96 1.04 233.13 1.69 37.07 M. barleeanus 140 20635 1.35 5.24 1.40 1.00 133.08 0.32 4.22 M. barleeanus 140 20635 1.19 4.30 1.40 0.99 168.52 0.29 4.21 M. barleeanus 140 20635 1.06 3.49 1.40 1.10 131.24 0.39 2.98 M. barleeanus 145 20897 1.54 6.20 1.49 1.02 120.26 0.44 3.95 M. barleeanus 145 20897 0.90 2.30 1.49 0.99 102.68 0.34 2.04 M. barleeanus 145 20897 1.12 3.86 1.49 0.95 96.55 0.87 4.95 M. barleeanus 145 20897 0.88 2.10 1.49 0.97 89.46 0.33 4.72 M. barleeanus 145 20897 0.87 2.02 1.49 1.01 127.61 0.21 3.26 M. barleeanus 145 20897 1.22 4.54 1.49 1.03 169.75 0.31 4.18 M. barleeanus 150 21158 1.06 3.49 1.36 1.07 96.09 0.37 3.34 M. barleeanus 150 21158 1.03 3.30 1.36 1.02 94.64 0.37 4.34 M. barleeanus 150 21158 1.22 4.52 1.36 1.03 129.45 0.44 4.06 M. barleeanus 160 21516 1.24 4.60 1.34 1.02 132.88 0.25 27.63 M. barleeanus 160 21516 1.39 5.46 1.34 1.00 164.76 0.38 4.47 M. barleeanus 160 21516 1.21 4.43 1.34 1.07 157.79 0.41 9.40 M. barleeanus 165 21695 1.17 4.22 1.47 1.00 158.11 0.39 5.75 M. barleeanus 165 21695 1.59 6.46 1.47 1.06 139.31 0.33 4.20 M. barleeanus 165 21695 1.27 4.79 1.47 1.03 242.39 0.57 5.14 M. barleeanus 170 21874 1.13 3.95 1.45 1.02 158.66 0.29 3.45 M. barleeanus 170 21874 1.38 5.40 1.45 1.02 169.45 0.39 6.12 M. barleeanus 170 21874 1.39 5.46 1.45 1.00 146.16 0.45 5.49 M. barleeanus 170 21874 0.87 2.06 1.45 0.99 153.13 0.19 N/A M. barleeanus 170 21874 1.48 5.92 1.45 0.98 160.91 0.49 3.96 M. barleeanus 175 22053 1.07 3.56 1.30 1.00 235.38 0.47 4.27 M. barleeanus 175 22053 1.09 3.71 1.30 1.03 171.82 0.51 3.28 M. barleeanus 175 22053 1.12 3.88 1.30 1.03 148.98 0.55 3.67 M. barleeanus 180 22232 1.38 5.43 1.31 1.09 144.28 0.16 11.67 M. barleeanus 185 22415 1.05 3.41 1.35 0.97 136.82 0.48 4.20 M. barleeanus 185 22415 0.95 2.68 1.35 1.04 135.00 0.54 4.86 M. barleeanus 190 22598 1.49 5.96 1.44 1.02 147.37 0.44 2.99 M. barleeanus 190 22598 1.55 6.25 1.44 1.00 168.05 0.45 4.91 M. barleeanus 190 22598 2.05 8.31 1.44 1.01 179.64 0.64 8.06 M. barleeanus 190 22598 1.46 5.83 1.44 1.02 156.32 0.61 3.98 M. barleeanus 190 22598 2.11 8.49 1.44 0.98 143.94 0.67 5.36 M. barleeanus 190 22598 1.35 5.27 1.44 0.98 145.38 0.40 4.05 M. barleeanus 190 22598 1.06 3.45 1.44 0.95 127.56 0.59 5.92 M. barleeanus 190 22598 1.21 4.47 1.44 1.05 144.75 0.40 15.56 M. barleeanus 195 22780 2.02 8.17 1.65 0.99 178.43 0.96 3.70 M. barleeanus 195 22780 1.05 3.43 1.65 0.99 243.91 1.02 2.93 M. barleeanus 195 22780 1.43 5.69 1.65 1.02 156.26 0.84 3.74 M. barleeanus 195 22780 1.33 5.12 1.65 1.01 169.85 0.74 2.61 M. barleeanus 200 22963 0.94 2.57 1.47 0.98 307.12 0.74 N/A M. barleeanus 200 22963 1.40 5.49 1.47 1.02 166.96 0.91 2.12 M. barleeanus 200 22963 1.19 4.34 1.47 1.01 298.54 0.57 5.11 M. barleeanus 200 22963 1.46 5.80 1.47 1.00 189.35 0.94 5.61 M. barleeanus