# Santa Barbara Basin Stable Isotope, Geochemistry, and Lithology Data from Marine Isotope Stage 16-15 Boundary at 631.5 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/19685 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/dean2015/dean2015-19jpc-wbd.txt # # Archive: Paleoceanography # # Parameter_Keywords: carbon isotopes, geochemistry, oxygen isotopes, lithology #--------------------------------------- # Contribution_Date # Date: 2016-01-20 #--------------------------------------- # Title # Study_Name: Santa Barbara Basin Stable Isotope, Geochemistry, and Lithology Data from Marine Isotope Stage 16-15 Boundary at 631.5 ka #--------------------------------------- # Investigators # Investigators: Dean, W.E.; Kennett, J.P.; Behl, R.J.; Nicholson, C.; Sorlien, C.C. #--------------------------------------- # Description and Notes # Description: The Marine Isotope Stage 16-15 boundary (Termination VII) is the first deglacial warming step of the late Quaternary following the end of the Mid-Pleistocene Transition (MPT), when 41-kyr climatic cycles shifted to strong 100-kyr cycles. The detailed structure of this important climatic event has remained unknown until now because of lack of high-resolution paleoclimate archives. Core MV0508-19JPC from Santa Barbara Basin (SBB), California contains a decadal-scale climatic and geochemical sediment record of 4000 years duration. This record reveals that the climatic shift during the deglacial occurred rapidly (<700 yr), in a progression of three abrupt warming steps. The onset of MIS 15 was remarkably abrupt with 4-5 °C sea surface warming in ~50 years. The deglacial sequence contains the well-dated Lava Creek tephra (639.0±2 ka) from Yellowstone Caldera used to date the onset of Termination VII at 639.2 ka. The late MIS 16 and early MIS 15 interval exhibits multiple decadal-scale negative excursions in ?13C of planktic foraminifera, likely the result of repeated discharges from methane hydrates associated with ocean warming or low sea level. A warm interstadial that interrupts late MIS 16 is characterized by elevated concentrations of redox-sensitive elements indicating sulfidic, oxygen-deficient bottom and pore waters, and elevated concentrations of TOC and Cd, reflecting increased surface productivity. Unlike younger sediments on the California margin, these geochemical indicators of increased productivity and low dissolved oxygen do not consistently correspond with each other or with preserved laminations, possibly reflecting instability of a still evolving ocean-atmosphere system following the MPT. See original reference for further details on the cores and methods. #--------------------------------------- # Publication # Authors: Dean, W.E., Kennett, J.P., Behl, R.J., Nicholson, C., and Sorlien, C.C. # Published_Date_or_Year: 2015 # Published_Title: Abrupt termination of Marine Isotope Stage 16 (Termination VII) at 631.5ka in Santa Barbara Basin, California # Journal_Name: Paleoceanography # Volume: 30 # Issue: # Pages: 1373-1390 # Report Number: # DOI: 10.1002/2014PA002756 # Full_Citation: # Abstract: The Marine Isotope Stage 16-15 boundary (Termination VII) is the first deglacial warming step of the late Quaternary following the mid-Pleistocene transition (MPT), when 41?kyr climatic cycles shifted to strong 100?kyr cycles. The detailed structure of this important climatic event has remained unknown until now. Core MV0508-19JPC from Santa Barbara Basin, California, contains a decadal-scale climatic and geochemical sediment record of 4000?years duration that includes the early part of this deglacial episode. This record reveals that the climatic shift during the early deglacial occurred rapidly (<700?years), in a progression of three abrupt warming steps. The onset of Marine Isotope Stage (MIS) 15 was remarkably abrupt with 4-5°C sea surface warming in ~50?years. The deglacial sequence contains the well-dated Lava Creek tephra (631.3?±?4?ka) from Yellowstone Caldera used to date the onset of Termination VII at 631.5?ka. The late MIS 16 and early MIS 15 interval exhibits multiple decadal-scale negative excursions in d13C of planktic foraminifera, likely the result of repeated discharges of methane from methane hydrates associated with both ocean warming and low sea level. A warm interstadial that interrupts late MIS 16 is marked by elevated concentrations of redox-sensitive elements indicating sulfidic, oxygen-deficient bottom and pore-waters, and elevated concentrations of total organic carbon and Cd, reflecting increased surface productivity. Unlike younger sediments on the California margin, these indicators of increased productivity and low dissolved oxygen do not consistently correspond with each other or with preserved laminations, possibly reflecting instability of a still evolving ocean-atmosphere system following the MPT. #--------------------------------------- # Publication # Authors: Nicholson, C., J. Kennett, C. Sorlien, S. Hopkins, R. Behl, W. Normark, R. Sliter, T. Hill, D. Pak, A. Schimmelmann, and K. Cannariato # Published_Date_or_Year: 2006 # Published_Title: Santa Barbara Basin study extends global climate record # Journal_Name: EOS # Volume: 87 # Issue: 21 # Pages: 205-207 # Report Number: # DOI: 10.1029/2006EO210001 # Full_Citation: # Abstract: #--------------------------------------- # 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: 213-226 # Report Number: # DOI: 10.1002/palo.20022 # Full_Citation: # Abstract: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #--------------------------------------- # Site Information # Site_Name: MV0508-19JPC # Location: Eastern Pacific Ocean # Country: Santa Barbara Basin # Northernmost_Latitude: 34.214367 # Southernmost_Latitude: 34.214367 # Easternmost_Longitude: 119.668 # Westernmost_Longitude: 119.668 # Elevation: -135 #--------------------------------------- # Data_Collection # Collection_Name: 19JPC-WBD-Dean16 # First_Year: # Last_Year: # Time_Unit: # Core_Length: # Notes: #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # 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,,,cm,,,,,N ## wbd wet bulk density,,,g/cm3,,,,,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NA depth_cm wbd 3 1.6838 4 1.737 5 1.7849 6 1.7962 7 1.7995 8 1.8456 9 1.831 10 1.8308 11 1.8314 12 1.8357 13 1.8135 14 1.8114 15 1.8145 16 1.824 17 1.8157 18 1.8294 19 1.8338 20 1.8032 21 1.8114 22 1.8401 23 1.8421 24 1.8521 25 1.8397 26 1.8617 27 1.8343 28 1.8535 29 1.8553 30 1.8592 31 1.8822 32 1.862 33 1.8855 34 1.8933 35 1.8996 36 1.9034 37 1.8885 38 1.9145 39 1.9014 40 1.918 41 1.9047 42 1.8653 43 1.8575 44 1.869 45 1.8624 46 1.8733 47 1.8988 48 1.8939 49 1.8959 50 1.911 51 1.8997 52 1.9293 53 1.9663 54 1.9601 55 1.946 56 1.9093 57 1.9087 58 1.9405 59 1.9121 60 1.9264 61 1.934 62 1.936 63 1.9662 64 1.9635 65 1.9507 66 1.9263 67 1.9577 68 1.8676 69 1.8745 70 1.9083 71 1.8668 72 1.8688 73 1.9028 74 1.8636 75 1.8348 76 1.8458 77 1.8602 78 1.8953 79 1.8827 80 1.8791 81 1.9118 82 1.8867 83 1.841 84 1.8196 85 1.8222 86 1.8573 87 1.8148 88 1.8153 89 1.8096 90 1.7973 91 1.776 95 1.7819 96 1.7522 97 1.7897 98 1.8181 99 1.8199 100 1.8187 101 1.8281 102 1.8353 103 1.8599 104 1.8463 105 1.8368 106 1.8018 107 1.807 108 1.833 109 1.8404 110 1.8752 111 1.8675 112 1.843 113 1.865 114 1.8688 115 1.8564 116 1.8413 117 1.8891 118 1.8737 119 1.8766 120 1.8716 121 1.8857 122 1.8842 123 1.9131 124 1.8993 125 1.917 126 1.8614 127 1.8787 128 1.8758 129 1.8932 130 1.8948 131 1.8772 132 1.8597 133 1.8745 134 1.8521 135 1.8564 136 1.8501 137 1.8546 138 1.8848 139 1.848 140 1.8523 141 1.8736 142 1.8759 143 1.8726 144 1.8548 145 1.8646 146 1.8707 147 1.8562 148 1.8858 149 1.869 150 1.8803 151 1.8873 152 1.8686 153 1.8888 154 1.9199 155 1.9063 156 1.9526 157 1.9429 158 1.9 159 1.8965 160 1.9052 161 1.8686 162 1.8615 163 1.8874 164 1.9363 165 1.9071 166 1.818 167 1.834 168 1.8203 169 1.9833 170 2.03 171 1.9358 172 1.8693 173 1.8824 174 1.9091 175 1.9365 176 1.9536 177 1.9855 178 2.0076 179 1.9595 180 1.967 181 1.936 182 1.9304 183 1.9035 184 1.9117 185 2.0344 186 1.9446 187 1.8747 188 1.8427 189 1.8649 190 1.9288 191 1.8507 192 1.8351 193 1.7366 194 1.9449 195 1.9119 196 1.8475 197 1.8671 198 1.886 199 1.8737 200 1.8825 201 1.9128 202 1.9165 203 1.9297 204 1.9161 205 1.9088 206 1.8863 207 1.881 208 1.9062 209 1.9039 210 1.8783 211 1.8896 212 1.9032 213 1.9122 214 1.8844 215 1.8744 216 1.8537 217 1.877 218 1.8832 219 1.8994 220 1.8837 221 1.8872 222 1.8731 223 1.8584 224 1.8782 225 1.8639 226 1.8503 227 1.7445 228 1.7655 229 1.7149 230 1.7222 231 1.7197 232 1.7185 233 1.6681 234 1.6745 235 1.6827 236 1.6535 237 1.6384 238 1.663 239 1.6905 240 1.721 241 1.6974 242 1.7173 243 1.6877 244 1.6627 248 1.5876 249 1.6512 250 1.6305 251 1.6148 252 1.6378 253 1.6581 254 1.511 258 1.6434 259 1.6858 260 1.6262 261 1.6432 262 1.6574 263 1.6734 264 1.7255 265 1.7462 266 1.7934 267 1.9713 268 1.7741 269 1.7788 270 1.8502 271 1.8373 272 1.8457 273 1.863 274 1.8165 275 1.8816 276 1.8214 277 1.7686 278 1.8191 279 1.8048 280 1.7852 281 1.8194 282 1.7872 283 1.8018 284 1.7804 285 1.7775 286 1.7628 287 1.7593 288 1.7542 289 1.7848 290 1.8111 291 1.7611 292 1.7227 293 1.7478 294 1.7816 295 1.71 297 1.652 299 1.5841 300 1.7073 301 1.6779 302 1.7318 303 1.6915 304 1.6886 305 1.4303 306 1.3411 307 1.4928 308 1.6321 309 1.7403 310 1.7522 311 1.715 312 1.7311 313 1.7883 314 1.7302 315 1.7665 316 1.7383 317 1.7068 318 1.729 319 1.6822 320 1.6743 321 1.6397 322 1.6698 323 1.6476 324 1.6541 325 1.6908 326 1.7294 327 1.7606 328 1.7685 329 1.7682 330 1.7534 332 1.7767 333 1.7702 334 1.7926 335 1.7623 336 1.7628 337 1.8405 338 1.8041 339 1.819 340 1.7939 341 1.7742 342 1.8004 343 1.7751 344 1.7837 345 1.7978 346 1.7797 347 1.7579 348 1.7498 349 1.7715 350 1.7482 351 1.7557 352 1.7342 353 1.767 354 1.7364 355 1.7526 356 1.7473 357 1.7321 358 1.7319 359 1.7089 360 1.6975 361 1.7139 362 1.7118 363 1.7086 364 1.7029 365 1.6802 366 1.693 367 1.6793 368 1.6263