# 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-iso.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-Isotopes-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_top depth top,,,cm,,,,,N ## depth_bot depth bottom,,,cm,,,,,N ## d18Og.bull delta 18O ,Globigerina bulloides ,,per mil VPDB,,Paleoceanography,,,N ## d13Cg.bull delta 13C,Globigerina bulloides ,,per mil VPDB,,Paleoceanography,,,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NA depth_top depth_bot d18Og.bull d13Cg.bull 0 1 0.879 -0.614 1 2 1.066 -0.523 2 3 1.033 -0.712 3 4 0.914 -1.062 4 5 0.968 -0.747 5 6 1.236 -0.794 6 7 0.979 -0.957 7 8 0.962 -0.782 8 9 1.143 -1.109 9 10 0.994 -0.787 10 11 1.012 -0.775 10 12 1.105 -0.657 12 13 1.135 -0.852 13 14 1.064 -1.189 14 15 1.083 -1.046 15 16 1.119 -0.894 15 17 1.02 -0.7 17 18 0.807 -0.985 18 19 1.042 -0.773 19 20 0.99 -0.832 20 21 1.061 -0.799 21 22 0.978 -0.736 22 23 0.94 -0.862 23 24 0.975 -1.007 24 25 1.044 -0.546 25 26 0.718 -0.859 25 27 0.961 -0.729 27 28 1.304 -0.66 28 29 0.975 -0.844 29 30 0.937 -0.881 30 31 1.062 -0.925 30 32 1.264 -0.943 32 33 1.062 -0.863 33 34 0.979 -0.788 34 35 1.111 -0.794 35 36 1.047 -2.027 35 37 1.071 -1.743 37 38 0.71 -1.011 38 39 1.007 -0.926 39 40 0.81 -0.435 40 42 1.237 -1.771 42 43 1.058 -0.88 43 44 1.071 -0.695 44 45 1.408 -1.654 45 46 1.258 -2.35 45 47 1.116 -1.299 47 48 0.798 -1.107 48 49 1.23 -1.765 49 50 1.376 -1.824 50 51 1.312 -1.014 50 52 1.365 -1.614 52 53 1.8 -3.29 53 54 1.525 -1.797 54 55 2.059 -4.639 55 56 1.785 -2.492 55 57 1.866 -1.992 56 57 1.582 -1.897 57 58 1.785 -4.522 58 59 1.783 -1.766 59 60 1.672 -1.989 60 61 1.475 -1.16 60 62 1.561 -1.658 62 63 1.827 -1.346 63 64 1.875 -2.092 64 65 2.036 -4.312 64 66 1.323 -2.856 68 70 1.384 -3.198 70 71 1.614 -4.568 71 72 1.254 -1.264 72 73 1.429 -0.833 75 76 1.439 -3.241 75 77 1.368 -2.717 77 78 1.506 -1.593 78 79 1.838 -2.46 79 80 1.963 -4.521 80 81 1.887 -1.01 81 82 2.103 -2.361 82 83 1.696 -1.004 83 84 1.83 -0.711 84 85 1.86 -0.831 85 86 2.077 -0.695 86 87 1.697 -0.713 87 88 1.564 -2.635 88 89 1.449 -1.472 89 90 1.284 -3.484 90 91 1.709 -4.342 91 92 1.437 -3.271 92 93 1.474 -1.716 93 94 1.9 -2.064 94 95 1.571 -1.101 95 96 1.69 -0.945 96 97 1.611 -1.412 97 98 1.259 -1.16 98 99 1.938 -5.153 99 100 1.437 -1.229 100 101 1.41 -1.215 101 102 1.726 -3.571 102 103 1.734 -2.602 103 104 1.947 -1.862 104 105 1.918 -2.106 105 106 2.405 -4.363 106 107 1.873 -0.861 107 108 2.347 -0.245 108 109 2.112 -0.321 109 110 2.386 -0.211 110 111 2.327 -0.29 111 112 2.207 -0.388 112 113 2.369 -0.386 113 114 2.103 -0.519 114 115 2.23 -0.284 115 116 2.235 -0.564 116 117 2.154 -0.248 117 118 2.091 -0.254 118 119 2.377 -0.141 119 120 2.119 -0.353 120 121 2.327 -0.168 121 122 2.178 -0.389 122 123 2.377 -0.426 123 124 2.49 -0.58 124 125 2.159 -0.344 125 126 2.272 -0.343 126 127 2.379 -0.229 127 128 2.326 -0.272 128 129 2.251 -0.042 129 130 2.313 -0.352 130 131 2.185 -0.214 131 132 2.416 -0.196 132 133 2.341 -0.107 133 134 2.226 -0.148 134 135 2.345 -0.249 135 136 2.323 -0.113 136 137 2.312 -0.115 137 138 2.596 -0.206 138 139 2.508 -0.177 139 140 2.471 -0.184 140 141 2.433 -0.235 141 142 2.473 -0.197 142 143 2.329 -0.632 143 144 2.424 -0.851 144 145 2.398 -0.395 145 146 2.308 -0.443 146 147 2.478 -0.314 147 148 2.259 -0.434 148 149 2.41 -1.747 149 150 2.356 -0.353 150 152 2.232 -0.439 155 156 2.325 -0.354 156 157 2.401 -0.472 157 158 2.428 -0.373 158 159 2.178 -0.756 160 162 2.604 -4.861 162 163 2.534 -4.924 163 164 2.725 -8.217 165 166 2.357 -1.986 165 167 2.28 -0.68 167 168 2.408 -4.79 168 169 2.429 -3.856 171 173 2.242 -0.333 175 176 2.56 -0.59 175 177 2.62 -1.336 177 178 2.476 -1.29 178 179 2.363 -1.247 179 180 2.311 -3.043 180 181 2.378 -3.088 181 182 2.448 -2.121 182 183 2.316 -3.589 183 184 2.096 -3.028 184 185 2.344 -2.261 185 186 2.255 -4.154 186 187 2.139 -1.614 188 189 2.268 -3.353 189 190 2.743 -4.992 190 191 2.364 -2.227 191 192 2.202 -3.261 192 193 2.386 -2.348 193 194 2.697 -5.437 194 195 2.81 -4.452 195 196 2.314 -0.709 196 197 2.342 -0.513 197 198 2.267 -0.508 198 199 2.273 -0.205 199 200 2.427 -0.506 200 201 2.467 -0.352 201 202 2.582 -0.206 202 203 2.417 -0.412 203 204 2.277 -0.601 206 207 2.339 -0.281 207 208 2.426 -0.235 208 209 2.146 -0.355 209 210 2.09 -0.452 210 211 2.19 -0.159 211 212 2.07 -0.354 212 213 2.218 -0.291 213 214 2.246 -0.438 214 215 2.192 -0.365 215 216 2.33 -0.357 216 217 2.291 -0.258 217 218 2.464 -0.266 218 219 2.249 -0.331 219 220 2.238 -0.286 220 221 2.179 -0.415 221 222 2.097 -0.527 222 223 2.262 -0.446 223 224 2.17 -0.227 224 225 1.885 -0.43 225 226 2.056 -0.316 226 227 2.204 -0.373 227 228 2.333 -0.51 228 229 2.351 -0.316 229 230 2.158 -0.368 230 231 2.263 -0.308 231 232 2.256 -0.191 232 233 2.031 -0.179 233 234 2.128 -0.071 234 235 2.185 -0.191 235 236 2.354 -0.069 236 237 2.137 -0.132 237 238 2.193 -0.094 238 239 2.146 -0.251 239 240 2.023 -0.167 240 242 2.326 -0.296 243 244 1.975 -0.221 244 245 2.235 -0.424 245 246 2.097 -0.445 246 247 1.954 -0.332 247 248 2.005 -0.301 248 249 2.146 -0.189 249 250 1.99 -0.454 250 251 2.087 -0.425 251 252 2.12 -0.462 252 253 1.92 -0.349 253 254 2.284 -0.172 254 255 2.116 -0.272 255 256 2.13 -0.369 257 258 2.244 -0.331 258 259 1.793 -0.453 259 260 2.118 -0.282 260 261 2.196 -0.338 261 262 1.996 -0.524 262 263 2.39 -0.395 263 264 2.543 -0.437 264 265 2.522 -0.287 265 266 2.435 -0.461 266 267 2.55 -0.264 267 268 2.524 -0.355 268 269 2.654 -0.452 269 270 2.488 -0.702 270 271 2.444 -0.575 271 272 2.884 -0.276 272 273 2.504 -1.607 273 274 2.406 -0.738 274 275 2.481 -1.451 275 276 2.4 -0.99 276 277 2.33 -0.468 277 278 2.354 -0.426 278 279 1.979 -0.673 279 280 2.334 -0.222 280 281 2.365 -0.404 281 282 2.427 -0.539 282 283 2.106 -0.423 283 284 2.234 -0.744 284 285 1.818 -0.484 285 286 1.421 -0.961 286 287 1.612 -1.263 287 288 1.999 -1.478 288 289 1.644 -1.325 289 290 2.162 -0.676 290 291 1.207 -1.746 291 292 1.406 -1.485 292 293 1.312 -1.709 293 294 1.542 -3.437 294 295 1.634 -4.622 295 296 1.523 -3.759 296 297 1.255 -2.272 298 299 1.099 -1.422 299 300 1.557 -1.229 300 301 1.357 -1.3 301 302 1.078 -1.7 302 303 1.331 -2.076 303 304 1.254 -1.697 304 305 1.296 -1.092 305 306 1.524 -1.357 306 307 1.432 -1.306 307 308 1.33 -1.576 309 310 2.168 -1.609 310 311 1.894 -1.384 311 312 1.809 -1.171 312 313 2.216 -1.122 313 314 2.291 -1.43 314 315 2.258 -1.471 315 316 2.068 -1.71 316 317 2.092 -1.284 318 319 2.12 -0.739 319 320 2.312 -0.605 320 321 2.042 -0.52 321 322 1.732 -0.89 322 323 1.92 -0.652 323 324 1.872 -0.733 324 325 2.264 -0.53 325 326 1.936 -0.623 326 327 2.12 -0.532 327 328 2.261 -0.337 328 329 2.246 -0.352 329 330 2.169 -0.514 330 331 2.36 -0.475 331 332 2.186 -0.731 332 333 2.389 -0.542 333 334 1.829 -0.332 334 335 2.119 -0.508 335 336 2.103 -0.605 336 337 2.254 -0.604 337 338 2.398 -0.522 338 339 2.216 -0.476 339 340 2.338 -0.809 340 341 2.169 -0.56 341 342 2.565 -0.664 342 343 2.201 -0.83 343 344 2.294 -0.658 344 345 1.836 -0.772 345 346 2.057 -0.707 346 347 1.752 -0.763 347 348 2.221 -0.402 348 349 2.416 -0.519 349 350 2.648 -0.416 350 351 2.613 -0.461 351 352 2.081 -0.491 352 353 2.73 -0.739 353 354 2.22 -0.538 354 355 2.258 -0.56 355 356 2.139 -0.359 356 357 2.604 -0.524 357 358 2.116 -0.375 358 359 1.848 -0.489 359 360 2.005 -0.515 360 361 2.222 -0.321 361 362 1.93 -0.437 362 363 1.9 -0.576 363 364 2.065 -0.303 364 365 1.776 -0.362 365 366 1.791 -0.406 366 367 2.038 -0.21 367 368 2.028 -0.634 368 369 1.487 -0.634 369 370 1.757 -0.635 370 371 1.439 -0.98 371 372 1.664 -0.514 372 373 2.002 -0.54 373 374 1.904 -0.462 374 375 1.824 -0.79 375 376 1.461 -0.735