# Santa Barbara Basin Stable Isotope and Foraminiferal Assemblage Data to 735 ka #----------------------------------------------------------------------- # 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. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/19762 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/white2013/white2013-20jpc-bull.txt # # Archive: Paleoceanography # # Parameter_Keywords: oxygen isotopes, carbon isotopes, population abundance, reconstruction #--------------------------------------- # Contribution_Date # Date: 2016-02-04 #--------------------------------------- # Title # Study_Name: Santa Barbara Basin Stable Isotope and Foraminiferal Assemblage Data to 735 ka #--------------------------------------- # Investigators # Investigators: White, Sarah; Hill, Tessa; Kennett, James; Behl, Richard; Nicholson, Craig #--------------------------------------- # Description_Notes_and_Keywords # Description: # Provided Keywords: stadial, interstadial, glacial #--------------------------------------- # Publication # Authors: White, S.M., T.M. Hill, J.P. Kennett, R.J. Behl, and C. Nicholson # Published_Date_or_Year: 2013 # Published_Title: Millennial-scale variability to 735 ka: High-resolution climate records from Santa Barbara Basin, CA # Journal_Name: Paleoceanography # Volume: 28 # Issue: # Pages: 1-14 # Report Number: # DOI: 10.1002/palo.20022, 2013 # Full_Citation: # Abstract: Determining the ultimate cause and effect of millennial-scale climate variability remains an outstanding problem in paleoceanography, partly due to the lack of high-resolution records predating the last glaciation. Recent cores from Santa Barbara Basin provide ~2500–5700 year “windows” of climate with ~10–50 year resolution. Ages for three cores, determined by seismic stratigraphic correlation, oxygen isotope stratigraphy, and biostratigraphy, date to ~293 ka (MIS 8), ~450 ka (MIS 12), and ~735 ka (MIS 18). These records sample the Late Pleistocene, during which the 100 kyr cycle strengthened and the magnitude of glacial-interglacial cyclicity increased. Thus, these records provide a test of the dependence of millennial-scale behavior on variations in glacial-interglacial cyclicity. The stable isotopic (d18O) composition of planktonic foraminifera shows millennial-scale variability in all three intervals, with similar characteristics (duration, cyclicity) to those previously documented during MIS 3 at this site. Stadial G. bulloides d18O values are 2.75–1.75‰ (average 2.25‰) and interstadial values are 1.75–0.5‰ (average 1‰), with rapid (decadal-scale) interstadial and stadial initiations of 1-2‰, as in MIS 3. Interstadials lasted ~250–1600 years and occurred every ~650–1900 years. Stadial paleotemperatures were 3.5–9.5°C and interstadial paleotemperatures were 7.5–13°C. Upwelling, evidenced by planktonic foraminiferal assemblages and d13C, increased during interstadials, similar to MIS 3; high productivity during some stadials was reminiscent of the Last Glacial Maximum. This study builds upon previous records in showing that millennial-scale shifts were an inherent feature of Northern Hemisphere glacial climates since 735 ka, and they remained remarkably constant in the details of their amplitude, cyclicity, and temperature variability. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: OCE-0825322, OCE-0350573 #--------------------------------------- # Site Information # Site_Name: MV0508-20JPC # Location: Santa Barbara Basin # Country: USA # Northernmost_Latitude: 34.22 # Southernmost_Latitude: 34.22 # Easternmost_Longitude: -119.67 # Westernmost_Longitude: -119.67 # Elevation: 128.5 #--------------------------------------- # Data_Collection # Collection_Name: 20JPC bulloides White13 # First_Year: 737000 # Last_Year: 733000 # Time_Unit: cal yr BP # Core_Length: 3.87 # Notes: Ages are approximate - see White et al 2013 and supplementary online info for details. Precision of N. pachyderma is ±0.04‰ for C isotopes and ±0.06‰ for O isotopes (performed at UC Davis); precision of U. peregrina and G. bulloides is ±0.09‰ for both isotopes (performed at UC Santa Barbara). Foraminifera counts based on sample splits of >300 specimens. #--------------------------------------- # Chronology_Information # Chronology: # Cores were recovered from a submarine anticline that exposes pre-modern strata. Individual cores were placed in a chronostratigraphic framework using seismic stratigraphy in conjunction with well logs and seafloor outcrops; ages were refined using oxygen isotope stratigraphy, biostratigraphic datums, and a radiometrically dated ash layer. The sedimentation rate was used to estimate the length of time captured by each core. See White et al 2013 (including supplementary online info) for details. #--------------------------------------- # 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) ## core_name core name,,,,,,,,C ## CoreSect Core Section,,,,,,,,C ## depth_top depth,,,cm,,Paleoceanography,top of sample,,N ## d18Og.bull delta 18O,Globigerina bulloides,,per mil PDB,,Paleoceanography,,isotope ratio mass spectrometry,N ## d13Cg.bull delta 13C,Globigerina bulloides,,per mil PDB,,Paleoceanography,,isotope ratio mass spectrometry,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: core_name CoreSect depth_top d18Og.bull d13Cg.bull 20HR 1 1 1.593 -0.961 20HR 1 2 1.905 -0.845 20HR 1 3 2.013 -0.707 20HR 1 4 2.281 -1.138 20HR 1 5 1.753 -0.954 20JPC 1 5 1.551 -1.052 20HR 1 6 1.576 -0.781 20HR 1 7 1.675 -1.385 20HR 1 8 2.074 -1.067 20HR 1 9 1.985 -1.054 20HR 1 10 1.755 -1.066 20JPC 1 10 2.183 -1.012 20HR 1 11 1.992 -0.894 20HR 1 12 2.011 -0.941 20HR 1 13 1.867 -0.915 20HR 1 14 1.633 -0.786 20HR 1 15 1.563 -0.864 20JPC 1 15 1.098 -0.429 20HR 1 16 1.143 -0.877 20HR 1 17 1.361 -0.939 20HR 1 18 0.92 -1.006 20HR 1 19 1.274 -0.902 20HR 1 20 1.058 -0.861 20JPC 1 20 1.424 -0.892 20HR 1 21 0.8 -1.37 20HR 1 22 1.348 -1.046 20HR 1 23 1.2 -0.908 20HR 1 24 1.557 -0.75 20HR 1 25 1.521 -1.217 20JPC 1 25 1.598 -0.752 20HR 1 26 1.517 -0.619 20HR 1 27 1.19 -1.091 20HR 1 28 1.191 -0.59 20HR 1 29 0.976 -0.81 20HR 1 30 0.842 -1.075 20HR 1 31 1.327 -0.76 20HR 1 32 1.188 -1.32 20HR 1 33 1.29 -1.015 20HR 1 34 1.161 -0.884 20HR 1 35 1.123 -1.014 20JPC 1 35 1.069 -1.366 20HR 1 36 0.866 -0.892 20HR 1 37 1.524 -1.038 20HR 1 38 NaN NaN 20HR 1 39 1.631 -0.783 20HR 1 40 1.222 -1.484 20JPC 1 40 1.464 -0.977 20HR 1 41 1.323 -1.474 20HR 1 42 0.951 -1.73 20HR 1 43 1.294 -1.121 20HR 1 44 1.636 -0.894 20HR 1 45 1.616 -0.916 20JPC 1 45 2.107 -0.522 20HR 1 46 2.01 -0.843 20HR 1 47 2.392 -0.812 20HR 1 48 2.41 -0.596 20HR 1 49 2.181 -0.715 20HR 1 50 2.372 -1.012 20JPC 1 50 2.266 -0.92 20HR 1 51 2.388 -0.778 20HR 1 52 2.343 -0.716 20HR 1 53 2.23 -0.814 20HR 1 54 2.225 -0.558 20HR 1 55 2.35 -0.656 20JPC 1 55 2.442 -0.833 20HR 1 56 2.144 -0.886 20HR 1 57 2.109 -0.621 20HR 1 58 2.209 -0.962 20HR 1 59 2.23 -0.562 20HR 1 60 2.195 -0.856 20JPC 1 60 2.467 -0.767 20HR 1 61 1.923 -1.08 20HR 1 62 2.076 -0.812 20HR 1 63 2.313 -0.713 20HR 1 64 2.209 -0.805 20HR 1 65 2.34 -0.681 20JPC 1 65 2.341 -0.672 20HR 1 66 2.285 -0.797 20HR 1 67 2.78 -0.815 20HR 1 68 2.427 -0.905 20HR 1 69 2.459 -0.772 20HR 1 70 2.435 -0.955 20JPC 1 70 2.401 -0.836 20HR 1 71 2.409 -0.787 20HR 1 72 2.439 -0.788 20HR 1 73 2.382 -0.65 20HR 1 74 2.195 -1.142 20JPC 1 75 2.061 -1.238 20JPC 1 75 2.33 -1.051 20HR 1 76 2.2 -0.9 20HR 1 77 1.988 -0.538 20HR 1 78 2.063 -0.586 20HR 1 79 1.895 -0.986 20HR 1 80 1.661 -1.281 20HR 1 81 2.014 -0.799 20HR 1 82 1.706 -1.022 20HR 1 83 2 -0.804 20HR 1 84 2.08 -0.96 20HR 1 85 1.956 -0.786 20JPC 1 85 2.04 -0.985 20HR 1 86 2.252 -1.019 20HR 1 87 1.865 -1.019 20HR 1 88 1.713 -1.051 20HR 1 89 2.194 -0.798 20HR 1 90 1.147 -1.358 20JPC 1 90 2.1 -1.017 20HR 1 91 1.542 -1.06 20HR 1 92 1.092 -1.331 20HR 1 93 1.26 -1.031 20HR 1 94 1.415 -1.292 20HR 1 95 1.157 -1.21 20JPC 1 95 1.566 -0.639 20HR 1 96 0.993 -1.041 20HR 1 97 1.181 -0.912 20HR 1 98 0.797 -1.007 20HR 1 99 0.975 -0.85 20HR 1 100 1.211 -0.869 20JPC 1 100 1.421 -0.885 20HR 1 101 0.958 -0.857 20HR 1 102 0.924 -1.314 20HR 2 103 1.04 -1.246 20HR 2 104 0.968 -1.171 20HR 2 105 1.227 -1.356 20JPC 2 105 1.102 -1.192 20HR 2 106 1.553 -1.291 20HR 2 107 1.485 -1.249 20HR 2 108 1.541 -0.82 20HR 2 109 1.072 -1.077 20HR 2 110 1.108 -1.365 20JPC 2 110 1.286 -0.931 20HR 2 111 0.99 -1.073 20HR 2 112 1.272 -1.407 20HR 2 113 1.266 -1.228 20HR 2 114 1.407 -0.962 20HR 2 115 1.47 -0.712 20JPC 2 115 0.962 -1.14 20HR 2 116 1.446 -0.832 20HR 2 117 1.319 -1.113 20HR 2 118 1.498 -1.358 20HR 2 119 1.639 -1.438 20HR 2 120 1.513 -0.989 20JPC 2 120 1.51 -1.404 20HR 2 121 1.424 -1.196 20HR 2 122 1.436 -1.503 20HR 2 123 1.426 -1.648 20HR 2 124 1.745 -1.38 20HR 2 125 1.403 -1.326 20JPC 2 125 1.508 -1.595 20HR 2 126 1.728 -1.547 20HR 2 127 2.113 -1.363 20HR 2 128 2.136 -1.044 20HR 2 129 1.944 -1.176 20HR 2 130 1.748 -1.362 20HR 2 131 2.164 -1.122 20HR 2 132 1.794 -1.222 20HR 2 133 1.627 -1.437 20HR 2 134 1.925 -1.555 20HR 2 135 1.953 -1.229 20JPC 2 135 1.966 -1.676 20HR 2 136 2.194 -1.325 20HR 2 137 1.8 -1.738 20HR 2 138 1.759 -1.818 20HR 2 139 1.673 -1.712 20HR 2 140 2.056 -1.754 20JPC 2 140 2.127 -1.85 20HR 2 141 1.852 -1.819 20HR 2 142 1.857 -1.114 20HR 2 143 1.408 -1.673 20HR 2 144 1.358 -1.728 20HR 2 145 1.994 -1.257 20JPC 2 145 1.754 -1.564 20HR 2 146 1.907 -0.96 20HR 2 147 2.154 -1.025 20HR 2 148 2.356 -0.954 20HR 2 149 2.206 -1.012 20HR 2 150 2.068 -0.94 20JPC 2 150 2.237 -1.32 20HR 2 151 2.184 -1.075 20HR 2 152 2.137 -1.165 20HR 2 153 2.169 -1.104 20HR 2 154 2.106 -0.85 20HR 2 155 2.197 -0.852 20JPC 2 155 2.415 -1.072 20HR 2 156 2.26 -1.089 20HR 2 157 2.199 -1.225 20HR 2 158 1.809 -1.333 20HR 2 159 1.886 -1.437 20HR 2 160 2.285 -1.223 20JPC 2 160 2.46 -1.132 20HR 2 161 2.18 -1.078 20HR 2 162 2.194 -0.845 20HR 2 163 2.116 -0.991 20HR 2 164 2.485 -1.034 20HR 2 165 2.212 -0.831 20JPC 2 165 2.213 -1.002 20HR 2 166 1.731 -1.28 20HR 2 167 1.625 -1.434 20HR 2 168 2.12 -1.006 20HR 2 169 1.938 -1.429 20HR 2 170 1.893 -1.076 20JPC 2 170 2.074 -1.146 20HR 2 171 2.037 -0.967 20HR 2 172 1.943 -1.918 20HR 2 173 2.283 -0.865 20HR 2 174 2.186 -0.953 20HR 2 175 1.864 -1.788 20JPC 2 175 2.13 -1.155 20HR 2 176 1.774 -1.46 20HR 2 177 2.067 -1.765 20HR 2 178 2.065 -1.442 20HR 2 179 1.825 -1.614 20HR 2 180 1.629 -2.576 20JPC 2 180 2.38 -1.349 20HR 2 181 1.716 -2.275 20HR 2 182 1.747 -1.735 20HR 2 183 1.409 -1.907 20HR 2 184 1.738 -1.902 20HR 2 185 1.646 -1.445 20JPC 2 185 1.789 -1.542 20HR 2 186 1.467 -1.723 20HR 2 187 1.382 -1.603 20HR 2 188 1.887 -1.455 20HR 2 189 1.923 -2.058 20HR 2 190 1.592 -2.572 20HR 2 191 1.74 -2.145 20HR 2 192 1.898 -2.623 20HR 2 193 1.95 -2.447 20HR 2 194 1.898 -1.142 20HR 2 195 2.145 -1.056 20JPC 2 195 1.913 -0.836 20HR 2 196 1.7 -1.022 20HR 2 197 1.706 -0.926 20HR 2 198 1.181 -0.84 20HR 2 199 1.428 -0.88 20HR 2 200 1.471 -0.879 20JPC 2 200 1.325 -0.84 20HR 2 201 1.391 -0.78 20HR 2 202 1.817 -1.059 20HR 2 203 1.489 -1.419 20HR 2 204 1.447 -1.003 20HR 2 205 1.361 -0.696 20JPC 2 205 1.238 -0.88 20HR 2 206 1.226 -0.872 20HR 2 207 1.335 -0.745 20HR 2 208 1.494 -0.75 20HR 2 209 1.45 -0.725 20HR 2 210 1.314 -0.758 20JPC 2 210 1.334 -0.968 20HR 2 211 1.557 -0.655 20HR 2 212 1.317 -0.844 20HR 2 213 1.454 -1.339 20HR 2 214 1.121 -1.237 20HR 2 215 1.242 -0.91 20JPC 2 215 1.23 -0.946 20HR 2 216 1.03 -0.87 20HR 2 217 1.112 -0.793 20HR 2 218 0.773 -1.404 20HR 2 219 1.21 -1.009 20HR 2 220 1.426 -0.616 20JPC 2 220 1.127 -0.872 20HR 2 221 1.341 -0.73 20HR 2 222 1.528 -0.849 20HR 2 223 1.437 -1.015 20HR 2 224 1.493 -0.779 20HR 2 225 1.318 -1.125 20JPC 2 225 1.191 -0.887 20HR 2 226 1.215 -0.935 20HR 2 227 1.313 -1.051 20HR 2 228 1.369 -1.177 20HR 2 229 1.199 -1.235 20HR 2 230 1.337 -3.057 20JPC 2 230 1.324 -1.447 20HR 2 231 1.122 -2.965 20HR 2 232 1.39 -2.765 20HR 2 233 1.469 -3.515 20HR 2 234 1.645 -4.073 20HR 2 235 1.096 -1.553 20JPC 2 235 1.223 -1.754 20HR 2 236 1.149 -1.356 20HR 2 237 1.071 -1.21 20HR 2 238 1.183 -1.681 20HR 2 239 1.152 -1.644 20HR 2 240 1.297 -1.251 20HR 2 241 1.683 -1.821 20HR 2 242 1.972 -2.571 20HR 2 243 1.89 -2.59 20HR 2 244 1.891 -2.655 20HR 2 245 1.935 -2.468 20JPC 2 245 1.802 -2.563 20HR 2 246 1.764 -2.374 20HR 2 247 1.783 -2.859 20HR 2 248 1.555 -2.423 20HR 2 249 1.989 -2.24 20HR 2 250 1.799 -1.908 20HR 2 251 1.56 -1.688 20JPC 2 250 1.944 -1.863 20HR 2 252 1.601 -1.923 20HR 2 253 1.742 -1.944 20HR 2 254 1.77 -1.965 20HR 2 255 1.753 -1.798 20HR 3 256 1.731 -1.907 20HR 3 257 1.703 -1.951 20HR 3 258 1.869 -2.188 20HR 3 259 1.857 -2.388 20HR 3 260 1.7 -2.239 20HR 3 261 1.924 -1.712 20HR 3 262 1.584 -1.529 20HR 3 263 1.919 -1.231 20HR 3 264 1.761 -1.62 20HR 3 265 1.61 -1.933 20JPC 3 265 1.878 -1.847 20HR 3 266 1.798 -1.768 20HR 3 268 1.955 -1.672 20HR 3 267 1.941 -1.915 20HR 3 269 1.803 -1.477 20HR 3 270 1.905 -1.538 20JPC 3 270 2.05 -1.677 20HR 3 271 1.751 -1.36 20HR 3 272 1.559 -1.685 20HR 3 273 1.638 -1.744 20HR 3 274 1.928 -1.281 20HR 3 275 1.806 -1.674 20JPC 3 275 1.977 -1.916 20HR 3 276 1.941 -1.344 20HR 3 277 1.737 -1.729 20HR 3 278 1.954 -1.08 20HR 3 279 1.571 -1.703 20HR 3 280 1.63 -1.266 20JPC 3 280 1.748 -1.62 20HR 3 281 1.512 -1.362 20HR 3 282 1.383 -1.029 20HR 3 283 1.746 -1.266 20HR 3 284 1.748 -1.219 20HR 3 285 1.667 -1.102 20JPC 3 285 1.593 -1.444 20HR 3 286 1.59 -1.226 20HR 3 293 1.461 -1.452 20HR 3 294 1.375 -1.545 20HR 3 295 1.707 -0.949 20JPC 3 295 1.512 -1.563 20HR 3 296 1.789 -1.706 20HR 3 297 1.597 -2.287 20HR 3 298 1.58 -1.433 20HR 3 299 1.432 -1.107 20HR 3 300 1.558 -1.485 20JPC 3 300 1.442 -1.393 20HR 3 301 1.484 -1.153 20HR 3 302 1.754 -1.465 20HR 3 303 1.767 -2.676 20HR 3 304 1.787 -3.665 20HR 3 305 1.696 -2.773 20JPC 3 305 1.448 -1.554 20HR 3 306 1.676 -2.33 20HR 3 307 1.266 -1.811 20HR 3 308 1.448 -1.041 20HR 3 309 1.604 -1.449 20HR 3 310 1.461 -1.862 20HR 3 311 1.932 -2.912 20HR 3 312 1.676 -1.327 20HR 3 313 1.585 -1.86 20HR 3 314 1.824 -3.982 20HR 3 315 1.547 -2.423 20HR 3 315 1.601 -2.095 20HR 3 316 1.468 -2.321 20HR 3 317 1.558 -1.844 20HR 3 318 1.48 -2.054 20HR 3 319 1.569 -1.37 20HR 3 320 1.694 -1.612 20JPC 3 320 1.32 -1.383 20HR 3 321 1.532 -2.622 20HR 3 322 1.511 -1.691 20HR 3 323 1.624 -1.604 20HR 3 324 1.241 -1.709 20HR 3 325 1.277 -1.394 20JPC 3 325 1.305 -1.551 20HR 3 326 1.24 -1.34 20HR 3 327 1.23 -1.051 20HR 3 328 0.975 -1.396 20HR 3 329 1.402 -0.936 20HR 3 330 1.116 -0.875 20JPC 3 330 1.278 -1.074 20HR 3 331 1.496 -0.742 20HR 3 332 1.423 -0.785 20HR 3 333 1.365 -1.136 20HR 3 334 1.523 -1.343 20HR 3 335 1.463 -2.588 20JPC 3 335 1.338 -1.194 20HR 3 336 1.533 -4.397 20HR 3 337 1.6 -1.684 20HR 3 338 0.727 -0.883 20HR 3 339 0.402 -1.172 20HR 3 340 0.794 -0.993 20JPC 3 340 1.501 -3.023 20HR 3 341 0.879 -0.915 20HR 3 342 1.036 -1.192 20HR 3 343 1.56 -0.763 20HR 3 344 1.505 -0.719 20HR 3 345 1.489 -0.882 20JPC 3 345 1.439 -0.966 20HR 3 346 1.109 -1.036 20HR 3 347 1.503 -0.858 20HR 3 348 1.6 -0.881 20HR 3 349 1.905 -0.814 20HR 3 350 1.819 -1.331 20JPC 3 350 1.323 -1.007 20HR 3 351 1.978 -0.911 20HR 3 352 2.086 -0.799 20HR 3 353 2.21 -0.596 20HR 3 354 1.922 -0.935 20HR 3 355 2.314 -0.587 20JPC 3 355 1.903 -1.202 20HR 3 356 2.02 -1.113 20HR 3 357 2.216 -1.381 20HR 3 358 2.087 -1.177 20HR 3 359 2.064 -1.201 20HR 3 360 2.172 -1.115 20JPC 3 360 2.101 -1.268 20HR 3 361 2.302 -1.232 20HR 3 362 2.231 -1.446 20HR 3 363 2.263 -1.536 20HR 3 364 2.022 -0.958 20HR 3 365 2.091 -0.885 20JPC 3 365 2.208 -1.715 20HR 3 366 2.051 -0.73 20HR 3 367 1.886 -0.796 20HR 3 368 2.074 -0.722 20HR 3 369 2.041 -0.648 20HR 3 370 1.976 -0.924 20HR 3 371 2.107 -1.09 20HR 3 372 2.093 -0.669 20HR 3 373 1.882 -0.96 20HR 3 374 1.74 -1.011 20HR 3 375 2.065 -1.136 20JPC 3 375 1.991 -2.297 20HR 3 376 2.078 -0.983 20HR 3 377 1.874 -1.532 20HR 3 378 1.719 -1.046 20HR 3 379 1.752 -0.902 20HR 3 380 1.912 -0.926 20JPC 3 380 1.813 -1.751 20HR 3 381 1.816 -1.059 20HR 3 382 1.911 -0.853 20HR 3 383 1.734 -1.042 20HR 3 384 1.79 -1.293 20HR 3 385 1.875 -1.301 20JPC 3 385 1.581 -1.26 20HR 3 386 1.931 -1.075