# 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-xrf.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 Ca/Sr Hoffman2018 # First_Year: 23193 # Last_Year: 2457 # 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,used MARINE13 calibration curve ## Ca/Sr calcium/strontium,,,,,paleoceanography,,x-ray fluorescence spectroscopy,N, #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: N/A XRF Depth (cm) Marine13_age Ca/Sr 1 2457 316 2 2811 303 3 3165 304 4 3519 304 5 3874 285 6 4228 279 7 4582 292 8 4936 302 9 5290 315 10 5644 322 11 5999 308 12 6353 N/A 13 6707 276 14 7061 294 15 7415 331 16 7769 269 17 8124 261 18 8478 285 19 8832 274 20 9186 305 21 9546 281 22 9905 270 23 10265 271 24 10624 255 25 10984 194 26 11343 235 27 11703 227 28 12062 231 29 12422 228 30 12781 241 31 13141 259 32 13500 270 33 13860 253 34 14219 320 35 14237 262 36 14255 257 37 14273 362 38 14291 403 39 14310 495 40 14328 470 41 14346 615 42 14364 497 43 14382 500 44 14400 430 45 14418 405 46 14436 366 47 14454 457 48 14473 330 49 14491 309 50 14509 319 51 14527 302 52 14545 429 53 14631 434 54 14716 535 55 14802 471 56 14888 484 57 14973 571 58 15059 753 59 15145 728 60 15230 732 61 15316 706 62 15402 699 63 15487 718 64 15573 686 65 15659 751 66 15744 661 67 15830 642 68 15916 599 69 16001 529 70 16087 460 71 16281 387 72 16475 379 73 16668 406 74 16862 293 75 17056 199 76 17250 218 77 17443 202 78 17637 213 79 17656 231 80 17675 199 81 17693 221 82 17712 180 83 17731 219 84 17750 228 85 17769 217 86 17788 212 87 17806 211 88 17825 200 89 17844 207 90 17863 198 91 17882 204 92 17900 208 93 17919 206 94 17938 199 95 17957 183 96 17976 175 97 17995 176 98 18013 216 99 18032 207 100 18051 189 101 18096 212 102 18142 244 103 18187 N/A 104 18232 104 105 18278 181 106 18323 203 107 18368 208 108 18414 186 109 18459 200 110 18504 196 111 18550 211 112 18595 204 113 18640 196 114 18686 202 115 18731 185 116 18807 197 117 18883 184 118 18959 170 119 19036 172 120 19112 157 121 19188 159 122 19264 165 123 19340 176 124 19416 177 125 19493 179 126 19569 170 127 19645 186 128 19721 170 129 19797 166 130 19873 166 131 19950 195 132 20026 142 133 20102 157 134 20178 N/A 135 20254 N/A 136 20330 N/A 137 20407 161 138 20483 167 139 20559 179 140 20635 169 141 20687 178 142 20740 179 143 20792 167 144 20844 154 145 20897 144 146 20949 118 147 21001 140 148 21053 142 149 21106 122 150 21158 116 151 21194 122 152 21230 126 153 21265 121 154 21301 N/A 155 21337 121 156 21373 122 157 21409 119 158 21444 117 159 21480 126 160 21516 138 161 21552 137 162 21588 126 163 21623 138 164 21659 159 165 21695 146 166 21731 167 167 21767 138 168 21802 128 169 21838 148 170 21874 N/A 171 21910 N/A 172 21946 N/A 173 21981 171 174 22017 170 175 22053 157 176 22089 165 177 22125 162 178 22160 145 179 22196 159 180 22232 168 181 22269 172 182 22305 190 183 22342 178 184 22378 210 185 22415 180 186 22451 177 187 22488 174 188 22524 175 189 22561 187 190 22598 205 191 22634 197 192 22671 177 193 22707 188 194 22744 198 195 22780 211 196 22817 210 197 22853 200 198 22890 179 199 22926 N/A 200 22963 N/A 201 23078 N/A 202 23193 N/A