# New Zealand and Australia Pacific Region d18O and d13C data for the last 30,000 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/22585 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/sikes2016/sikes2016-87tcjpc.txt # Description: NOAA location of this template # # Original_Source_URL: # Description: # # Archive: Paleoceanography # # Parameter_Keywords: carbon isotopes, oxygen isotopes #--------------------------------------- # Contribution_Date # Date: 2017-08-28 #--------------------------------------- # File_Last_Modified_Date # Date: 2017-08-28 #--------------------------------------- # Title # Study_Name: New Zealand and Australia Pacific Region d18O and d13C data for the last 30,000 years #--------------------------------------- # Investigators # Investigators: Sikes, Elisabeth L.; Elmore, Aurora C.; Allen, Katherine A.;Cook, Mea S.; Guilderson, Thomas P. #--------------------------------------- # Description_Notes_and_Keywords # Description: Cores in study with location name and age model basis: RR0503 87TC/JPC Bay of Plenty tephrachronology; RR0503 79JPC Bay of Plenty tephrachronology; RR0503 83TC/JPC Bay of Plenty tephrachronology; H214 Bay of Plenty tephrachronology; RR0503 125JPC Bay of Plenty tephrachronology; RR0503 41JPC Bay of Plenty tephrachronology; RS147-GC07 South Tasman Rise 14C AMS; Z2112 Z2112 14C AMS #--------------------------------------- # Publication # Authors: Sikes, Elisabeth L., Aurora C. Elmore, Katherine A. Allen, Mea S. Cook, and Thomas P. Guilderson # Published_Date_or_Year: 2016 # Published_Title: Glacial water mass structure and rapid d18O and d13C changes during the last glacial termination in the Southwest Pacific # Journal_Name: Earth and Planetary Science Letters # Volume: 456 # Edition: # Issue: # Pages: 87-97 # Report Number: # DOI: 10.1016/j.epsl.2016.09.043 # Online_Resource: http://www.sciencedirect.com/science/article/pii/S0012821X16305234?via%3Dihub # Full_Citation: # Abstract: Changes in ocean circulation are thought to have contributed to lowering glacial atmospheric CO2 levels by enhancing deep ocean sequestration of carbon that was returned to the atmosphere during glacial terminations. High-resolution benthic foraminiferal d13C and d18O records from a depth transect of cores in the Southwest Pacific Ocean presented here provide evidence that both wind-and thermohaline-driven circulation drove CO2from the ocean during the last deglaciation. Shallow geochemical stratification in the glacial Southern Ocean was followed by a short pulse of rapid d13C enrichment to intermediate water depths during Heinrich Stadial1, indicative of better-ventilated intermediate waters co-occurring with documented wind-driven upwelling in the Southern Ocean. Intermediate depth d13C enrichment paused at the start of the Antarctic Cold Reversal (~14.7ka), implying a brief shallow restratification, while deeper layers were progressively flushed of d13C-depleted and d18O-enriched waters, likely caused by the increasing influence of deep waters sourced from the North Atlantic. The coincidence of atmospheric CO2increases with these geochemical shifts in both shallow and deep cores suggests that shifts in both atmospheric and oceanic circulation contributed to the deglacial rise of CO2. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: NSF # Grant: OCE-0823487 and OCE-0823549-03 #--------------------------------------- # Site Information # Site_Name: RR0503 87JPC # Location: New Zealand # Country: New Zealand # Northernmost_Latitude: -37.26 # Southernmost_Latitude: -37.26 # Easternmost_Longitude: 176.64 # Westernmost_Longitude: 176.64 # Elevation: -663 #--------------------------------------- # Data_Collection # Collection_Name: RR0503 87TC/JPC Sikes2016 # First_Year: 26800 # Last_Year: 0 # Time_Unit: cal yr BP # Core_Length: # Notes: #--------------------------------------- # Chronology_Information # Chronology: # Based on radiocarbon dating on tephras # -- -- wtd mean -- wtd mean depth of bottom of visible ash in core (cm) # Tephra name 14C years +/- 1 sigma 14C Cal yrs BP (Tom) +/- 1 sigma years Cal kyrs BP (IntCal 2013) 87 TC 87 JPC 79JPC 83 TC 83 JPC 125 JPC core H214 # Tuhua NaN NaN 6947 NaN 6.947 96 NaN 31 57 NaN NaN NaN # Whakatane 4830 20 5499 60 5.499 NaN NaN NaN NaN NaN NaN NaN # Mamaku 7250 20 8009 70 8.009 NaN NaN NaN 72 NaN 81 77.5 # Rotoma 8530 10 9296 220 9.296 111 NaN 46 NaN NaN NaN 96.5 # Waiohau 12417 279 13998 110 13.998 160 NaN 81 134 26 NaN 156 # Rerewhakaaitu 14700 110 17906 147 17.906 NaN NaN NaN NaN 66 163 205.5 # Kawakawa 21299 ? 25650 40 25.65 NaN 157 330 NaN 164 347 NaN # # reference for age calculations: Sikes, E. L., and T. P. Guilderson (2016), Southwest Pacific Ocean surface reservoir ages since the last glaciation: Circulation insights from multiple-core studies, Paleoceanography, 31, 298-310. NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN # depth of ashes in cores reference: Shane, P. A., E. L. Sikes, and T. P. Guilderson (2006), Tephra beds in deep-sea cores off northern New Zealand: implications for the history of Taupo Volcanic Zone, Mayor Island, and White Island volcanoes, Journal of Volcanic and Geothermal Research, 154(4), 276-290. NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN # RS147-GC07 chronology data is in:Sikes, E. L., W. R. Howard, C. R. Samson, T. S. Mahan, L. G. Robertson, and J. K. Volkman (2009), Southern Ocean seasonal temperature and Subtropical Front movement on the South Tasman Rise in the Late Quaternary, Paleoceanography, 24(PA2201), PA2201, doi:2210.1029/2008PA001659.002009. NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN # #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab- 10 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data,additional info ## corename core name,,,,,,,,C, ## core_depth water depth,,,m,,,,,N,water depth of core site ## depth_cm depth,,,cm,,,,,N, ## age_calkaBP age,,,calendar ka BP,,,,,N, ## d13Cc.wuell delta 13C,Cibicidoides wuellerstorfi,,per mil PDB,, benthic foraminifera,,isotope ratio mass spectrometry,N, ## d18Oc.wuell delta 18O,Cibicidoides wuellerstorfi,,per mil PDB,, benthic foraminifera,,isotope ratio mass spectrometry,N, #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NA corename core_depth depth_cm age_calkaBP d13Cc.wuell d18Oc.wuell 87 TC 663 0.5 0.0 1.310 1.740 87 TC 663 6.5 0.4 1.642 1.834 87 TC 663 10.5 0.7 1.380 1.400 87 TC 663 16.5 1.1 1.495 1.662 87 TC 663 20.5 1.4 1.480 1.630 87 TC 663 26.5 1.8 1.567 1.643 87 TC 663 30.5 2.1 1.280 1.780 87 TC 663 36.5 2.5 1.655 1.609 87 TC 663 40.5 2.8 1.500 1.690 87 TC 663 46.5 3.2 1.389 1.367 87 TC 663 52.5 3.6 1.530 1.540 87 TC 663 56.5 3.9 1.608 1.350 87 TC 663 66.5 4.5 1.643 1.463 87 TC 663 72.5 5.0 1.520 1.550 87 TC 663 74.5 5.1 1.005 1.574 87 TC 663 86.5 5.9 1.310 1.493 87 TC 663 92.5 6.3 1.300 1.720 87 TC 663 96.5 6.6 1.068 1.480 87 JPC 663 6.5 6.9 0.960 1.921 87 JPC 663 8.5 7.2 0.929 1.953 87 JPC 663 10.5 7.5 1.310 1.880 87 JPC 663 12.5 7.8 1.067 1.761 87 TC 663 102.5 7.9 1.090 1.660 87 JPC 663 14.5 8.0 1.246 1.781 87 JPC 663 16.5 8.3 0.987 1.768 87 JPC 663 18.5 8.6 1.139 1.629 87 TC 663 106.5 8.8 1.192 1.442 87 JPC 663 20.5 8.9 0.830 2.060 87 JPC 663 22.5 9.2 0.901 1.764 87 TC 663 112.5 9.4 1.020 1.720 87 JPC 663 24.5 9.5 1.034 1.761 87 JPC 663 26.5 9.7 1.186 1.788 87 TC 663 116.5 9.9 1.161 1.799 87 JPC 663 28.5 10.0 0.892 1.942 87 JPC 663 30.5 10.3 0.960 2.050 87 TC 663 122.5 10.5 1.160 1.870 87 JPC 663 32.5 10.6 1.140 1.857 87 TC 663 124.5 10.7 1.073 1.899 87 JPC 663 34.5 10.9 1.156 1.905 87 TC 663 126.5 10.9 1.125 2.078 87 TC 663 128.5 11.1 1.066 1.824 87 JPC 663 36.5 11.2 1.210 2.190 87 TC 663 130.5 11.3 0.925 2.150 87 JPC 663 38.5 11.4 1.033 2.028 87 TC 663 132.5 11.5 1.130 2.390 87 TC 663 134.5 11.7 1.124 2.238 87 JPC 663 40.5 11.7 0.770 1.950 87 TC 663 136.5 11.9 1.247 2.410 87 JPC 663 42.5 12.0 1.164 2.369 87 TC 663 138.5 12.1 1.306 2.238 87 JPC 663 44.5 12.3 0.991 2.380 87 TC 663 140.5 12.3 1.024 2.158 87 JPC 663 46.5 12.6 1.142 2.658 87 TC 663 144.5 12.7 1.156 2.332 87 JPC 663 48.5 12.8 1.114 2.503 87 TC 663 146.5 12.9 1.241 2.333 87 JPC 663 50.5 13.1 0.840 2.180 87 TC 663 148.5 13.1 0.837 2.250 87 TC 663 150.5 13.3 0.979 2.398 87 JPC 663 52.5 13.4 0.985 2.977 87 TC 663 152.5 13.5 0.890 2.270 87 JPC 663 54.5 13.7 1.255 3.032 87 TC 663 154.5 13.7 1.043 2.564 87 TC 663 156.5 13.9 1.257 2.278 87 JPC 663 56.5 14.0 1.271 2.928 87 TC 663 158.5 14.0 0.855 1.904 87 TC 663 160.5 14.0 0.690 2.325 87 TC 663 162.5 14.3 0.990 2.260 87 JPC 663 58.5 14.3 1.007 2.590 87 TC 663 164.5 14.5 1.206 2.783 87 JPC 663 60.5 14.5 0.710 2.290 87 TC 663 166.5 14.7 1.162 2.705 87 JPC 663 62.5 14.8 1.057 2.708 87 JPC 663 64.5 15.1 1.260 3.090 87 JPC 663 66.5 15.4 1.122 2.656 87 JPC 663 68.5 15.7 1.212 2.923 87 JPC 663 70.5 16.0 0.840 2.760 87 JPC 663 72.5 16.2 0.795 2.967 87 JPC 663 74.5 16.5 1.151 3.204 87 JPC 663 76.5 16.8 1.283 3.367 87 JPC 663 78.5 17.1 1.259 3.175 87 JPC 663 80.5 17.4 0.990 3.200 87 JPC 663 82.5 17.6 1.274 3.335 87 JPC 663 84.5 17.9 1.177 3.285 87 JPC 663 86.5 18.2 1.351 3.258 87 JPC 663 88.5 18.4 1.252 3.431 87 JPC 663 92.5 18.9 1.327457 3.334643333 87 JPC 663 94.5 19.1 1.098342 3.340723333 87 JPC 663 96.5 19.3 1.212487 3.330283333 87 JPC 663 98.5 19.5 1.226467 3.233883333 87 JPC 663 100.5 19.8 1.17 3.3 87 JPC 663 102.5 20.0 1.212827 3.239013333 87 JPC 663 104.5 20.2 1.136606 3.268473333 87 JPC 663 108.5 20.7 1.238787 3.240423333 87 JPC 663 112.5 21.1 1.190217 3.312483333 87 JPC 663 114.5 21.3 1.274637 3.167723333 87 JPC 663 116.5 21.6 1.214905 3.00476875 87 JPC 663 118.5 21.8 1.178405 3.22960875 87 JPC 663 122.5 22.2 1.269505 3.30688875 87 JPC 663 124.5 22.4 1.188995 3.22770875 87 JPC 663 127 22.7 1.265595 3.22614875 87 JPC 663 128.5 22.9 1.228065 3.29994875 87 JPC 663 130.5 23.1 1.3 3.28 87 JPC 663 132.5 23.3 1.160605 3.18095875 87 JPC 663 134.5 23.5 1.263795 3.06765875 87 JPC 663 136.5 23.7 1.097117 3.17360875 87 JPC 663 138.5 23.9 1.319705 3.22773875 87 JPC 663 140.5 24.1 1.2 3.25 87 JPC 663 142.5 24.3 1.261005 3.41322875 87 JPC 663 144.5 24.4 1.161491 3.25526875 87 JPC 663 146.5 24.6 1.196675 3.02442875 87 JPC 663 148.5 24.8 1.183855 3.20189875 87 JPC 663 150.5 25.0 1.36 3.21 87 JPC 663 152.5 25.2 1.299715 3.13529875 87 JPC 663 154.5 25.4 1.045425 3.13918875 87 JPC 663 156.5 25.6 1.381175 3.29245875 87 JPC 663 158.5 25.8 1.232075 3.24658875 87 JPC 663 162.5 26.3 1.306255 3.21951875 87 JPC 663 164.5 26.5 1.264485 3.17125875 87 JPC 663 166.5 26.8 1.130765 3.14603875