# 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-carb.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-Carbons-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 ## tic% Total inorganic carbon,,,percent,,,,,N ## TC% Total Carbon,,,percent,,Paleoceanography,,,N ## toc% Total organic carbon,,,percent,,Paleoceanography,,,N ## carb% calcium carbonate,,,percent,,Paleoceanography,,,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NA depth_cm tic% TC% toc% carb% 2 0.58 1.76 1.20 4.84 5 0.63 2.05 1.39 5.45 7 0.58 1.78 1.20 4.87 10 0.53 1.91 1.38 4.43 12 0.61 1.83 1.22 5.09 15 0.61 2.01 1.41 5.06 17 0.38 1.48 1.10 3.16 20 0.33 1.89 1.57 2.72 22 0.48 1.80 1.32 3.99 25 0.59 1.85 1.26 4.88 27 0.45 1.70 1.25 3.73 30 0.53 1.89 1.36 4.41 32 0.39 1.55 1.16 3.24 35 0.45 1.69 1.24 3.77 37 0.37 1.57 1.20 3.05 40 0.29 1.66 1.37 2.44 42 0.41 1.67 1.26 3.45 45 0.55 1.83 1.28 4.56 47 0.18 1.34 1.16 1.48 50 0.36 1.64 1.56 2.96 52 0.63 1.81 1.19 5.22 55 0.60 1.79 1.19 5.02 57 0.75 1.80 1.07 6.29 60 0.30 1.39 1.09 2.53 62 0.35 1.17 0.82 2.95 65 0.20 1.31 1.11 1.64 67 0.06 1.31 1.25 0.46 70 1.39 2.39 1.00 11.60 72 0.76 2.18 1.43 6.29 75 1.50 2.69 1.20 12.46 77 0.65 1.75 1.10 5.40 80 NA NA NA NA 82 0.39 1.37 0.99 3.23 85 0.36 1.60 1.24 3.01 87 0.62 2.03 1.42 5.15 90 1.44 2.68 1.24 12.00 92 0.53 1.99 1.47 4.33 95 0.98 2.85 1.87 8.13 96 1.02 2.64 1.61 8.52 97 0.73 2.27 1.54 6.09 98 1.42 2.82 1.40 11.83 99 1.15 2.76 1.61 9.55 100 0.47 1.79 1.32 3.89 101 0.28 1.76 1.48 2.35 102 0.71 2.22 1.52 5.79 103 1.81 3.29 1.52 15.10 104 0.59 2.12 1.52 4.94 105 0.96 2.29 1.33 8.00 106 0.60 1.98 1.41 4.74 107 0.40 1.80 1.41 3.29 108 0.40 1.76 1.33 3.30 109 0.48 1.68 1.20 3.98 110 0.56 1.95 1.39 4.70 111 0.32 1.69 1.37 2.71 112 0.43 1.80 1.36 3.60 113 0.37 1.81 1.44 3.05 114 0.39 1.73 1.35 3.22 115 0.37 1.81 1.47 3.05 116 0.35 1.73 1.39 2.88 117 0.21 1.56 1.35 1.77 118 0.32 1.56 1.24 2.63 119 0.35 1.62 1.27 2.92 122 NA 1.88 1.88 NA 125 0.35 1.71 1.36 2.91 127 NA NA NA NA 130 0.44 1.74 1.32 3.64 132 NA 1.68 1.68 NA 135 0.37 1.82 1.39 3.08 137 0.33 1.69 1.36 2.72 140 0.19 1.51 1.29 1.61 142 NA 1.61 1.61 NA 145 0.40 1.70 1.30 3.34 147 NA 1.62 1.62 NA 150 0.13 1.52 1.37 1.10 152 0.12 1.32 1.20 1.02 155 0.21 1.30 1.10 1.70 157 NA 1.65 NA NA 160 0.13 1.51 1.38 1.12 162 1.68 3.24 1.56 14.01 165 0.41 2.11 1.70 3.38 167 0.23 1.82 1.59 1.91 170 0.18 1.85 1.67 1.49 172 0.04 1.51 1.43 0.31 175 0.38 1.57 1.18 3.19 177 0.55 1.64 1.09 4.56 180 1.40 2.48 1.08 11.68 182 0.63 2.11 1.48 5.28 185 0.60 3.31 2.71 5.04 187 0.10 1.75 1.65 0.81 190 0.32 1.73 1.36 3.05 193 1.79 3.60 1.83 14.78 195 0.71 2.25 1.54 5.88 197 0.66 2.04 1.38 5.51 199 0.63 2.03 1.40 5.25 200 0.54 1.72 1.19 4.48 201 0.50 1.92 1.42 4.15 203 0.17 1.54 1.37 1.42 205 0.03 1.42 1.39 0.25 207 0.31 1.65 1.34 2.60 210 0.26 1.72 1.44 2.18 212 0.51 1.85 1.35 4.21 215 0.28 1.68 1.40 2.34 220 0.53 1.84 1.32 4.39 222 NA 2.29 2.29 NA 225 0.80 2.35 1.56 6.64 227 NA 1.91 1.91 NA 230 0.41 2.11 1.70 3.45 232 0.69 2.41 1.72 5.77 235 0.58 2.12 1.53 4.87 237 0.48 2.08 1.60 4.04 240 0.09 1.69 1.57 0.89 242 NA 1.79 1.79 NA 245 0.53 1.97 1.45 4.38 250 0.52 2.20 1.69 4.23 252 NA 1.95 1.95 NA 255 0.50 2.03 1.53 4.17 256 0.57 2.31 1.74 4.72 257 0.72 2.31 1.59 6.00 258 0.60 2.13 1.50 5.20 259 0.42 1.86 1.44 3.48 260 0.30 1.90 1.60 2.50 261 0.30 1.88 1.58 2.48 262 0.54 2.02 1.48 4.46 263 0.84 2.06 1.22 7.03 264 0.94 2.08 1.14 7.80 265 0.88 2.19 1.30 7.36 267 NA NA NA NA 270 0.91 1.81 0.90 7.60 272 NA NA NA NA 275 0.77 1.94 1.17 6.38 276 0.69 1.97 1.28 5.73 277 0.46 1.78 1.31 3.87 280 0.46 1.83 1.37 3.84 282 NA 1.91 1.91 NA 285 0.51 1.69 1.18 4.23 287 NA 2.02 1.97 NA 290 0.78 2.21 1.43 6.46 292 3.03 4.49 1.46 25.27 295 1.10 2.70 1.60 9.20 297 1.13 2.66 1.52 9.44 300 0.84 2.36 1.44 7.01 301 1.01 2.43 1.43 8.27 302 0.82 2.22 1.40 6.81 303 0.34 1.85 1.51 2.81 304 0.38 1.76 1.38 3.17 305 0.58 2.01 1.46 4.87 306 0.44 1.81 1.38 3.66 307 0.62 1.71 1.13 4.84 308 0.79 1.99 1.20 6.57 309 0.64 1.92 1.17 6.16 310 0.61 1.74 1.12 5.11 312 0.66 1.76 1.10 5.50 315 1.04 2.02 0.98 8.63 317 0.08 2.02 1.93 0.70 320 0.65 1.80 1.15 5.42 322 0.58 1.85 1.27 4.84 325 0.60 1.84 1.24 5.03 327 0.42 1.48 1.07 3.49 330 0.40 1.52 1.12 3.33 332 0.53 1.59 1.06 4.44 335 0.54 1.63 1.07 4.65 337 0.57 1.56 0.99 4.73 340 0.21 1.29 1.08 1.78 342 0.70 1.59 0.89 5.80 345 0.75 1.73 0.98 6.11 347 0.84 1.89 1.05 7.02 350 0.51 1.70 1.23 4.24 352 0.58 1.82 1.24 4.82 355 0.71 1.91 1.20 5.90 357 0.62 1.89 1.27 5.18 360 0.87 2.35 1.49 7.22 362 0.96 2.36 1.41 7.97 365 0.79 2.17 1.37 6.61 367 0.90 2.30 1.40 7.51 370 0.79 2.15 1.37 6.56 373 0.73 1.91 1.19 6.09