# 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/sikes2016-79jpc.txt # Description: NOAA location of the 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 79JPC # Location: New Zealand # Country: New Zealand # Northernmost_Latitude: -36.96 # Southernmost_Latitude: -36.96 # Easternmost_Longitude: 176.59 # Westernmost_Longitude: 176.59 # Elevation: -1165 #--------------------------------------- # Data_Collection # Collection_Name: RR0503 79JPC Sikes2016 # First_Year: 24293 # Last_Year: 113 # 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 79 JPC 1165 0.5 0.1139 0.801959 2.583225313 79 JPC 1165 8.5 1.9356 0.798952 2.54523375 79 JPC 1165 12.5 2.8465 1.033 2.208993 79 JPC 1165 16.5 3.7574 1.164922 2.183577333 79 JPC 1165 20.5 4.6682 0.971625 2.139402188 79 JPC 1165 24.5 5.5791 1.056177 1.968240625 79 JPC 1165 28.5 6.49 1.006585 2.094496 79 JPC 1165 32.5 6.5979 1.032109 1.952109063 79 JPC 1165 36.5 7.4613 0.976921 2.2449275 79 JPC 1165 40.5 8.3247 0.974008 2.390663333 79 JPC 1165 48.5 9.5199 0.729486 2.559303333 79 JPC 1165 52.5 10.117 0.54134 2.406624375 79 JPC 1165 56.5 10.714 0.6098 2.403062813 79 JPC 1165 60.5 11.311 0.569977 2.059536 79 JPC 1165 62.5 11.61 0.546355 2.674213 79 JPC 1165 64.5 11.908 0.636137 2.782703333 79 JPC 1165 66.5 12.207 0.442213 2.386656875 79 JPC 1165 68.5 12.505 0.561817 2.499882125 79 JPC 1165 70.5 12.804 0.422849 2.89112075 79 JPC 1165 72.5 13.102 0.584631 2.738694625 79 JPC 1165 74.5 13.401 0.257165 2.8611285 79 JPC 1165 76.5 13.7 0.877202 2.981418 79 JPC 1165 78.5 13.998 0.81465 2.921552375 79 JPC 1165 80.5 13.998 0.328497 2.996363889 79 JPC 1165 82.5 14.033 0.20958 3.040866 79 JPC 1165 84.5 14.172 0.421801 3.127559778 79 JPC 1165 86.5 14.311 0.462263 3.344369875 79 JPC 1165 88.5 14.45 0.554055 3.145099688 79 JPC 1165 90.5 14.589 0.932532 3.41550625 79 JPC 1165 92.5 14.728 0.847733 3.50180625 79 JPC 1165 94.5 14.867 0.45755 2.997580125 79 JPC 1165 96.5 15.006 0.611553 3.442874 79 JPC 1165 97.5 15.075 0.879397 3.564877875 79 JPC 1165 100.5 15.284 0.946862 3.519803222 79 JPC 1165 102.5 15.423 0.370591 2.98052175 79 JPC 1165 106.5 15.701 0.960554 3.68550725 79 JPC 1165 108.5 15.84 0.974025 3.640164125 79 JPC 1165 110.5 15.979 0.961354 3.623315 79 JPC 1165 112.5 16.118 0.998262 3.458903333 79 JPC 1165 114.5 16.257 0.935893 3.892318875 79 JPC 1165 116.5 16.396 0.857664 3.817101875 79 JPC 1165 118.5 16.535 0.609358 4.03397275 79 JPC 1165 120.5 16.674 0.46206 3.769736625 79 JPC 1165 122.5 16.813 0.500559 3.8798105 79 JPC 1165 124.5 16.952 0.442685 3.899565625 79 JPC 1165 126.5 17.091 0.51246 3.936424375 79 JPC 1165 128.5 17.23 0.53821 4.053513333 79 JPC 1165 132.5 17.508 0.593215 3.972263333 79 JPC 1165 136.5 17.786 0.388501 3.948703333 79 JPC 1165 140.5 18.064 0.531807 3.995583333 79 JPC 1165 144.5 18.342 0.629951 3.953813333 79 JPC 1165 148.5 18.62 0.467938 3.944273333 79 JPC 1165 152.5 18.898 0.388964 3.772456778 79 JPC 1165 156.5 19.176 0.468627 3.897783333 79 JPC 1165 160.5 19.454 0.23523 3.802173333 79 JPC 1165 164.5 19.732 0.513804 3.859353333 79 JPC 1165 168.5 20.01 0.50709 3.811763333 79 JPC 1165 172.5 20.288 0.50105 3.825093333 79 JPC 1165 176.5 20.566 0.63797 3.839223333 79 JPC 1165 180.5 20.844 0.350222 3.840372667 79 JPC 1165 192.5 21.678 0.443046 3.930683333 79 JPC 1165 196.5 21.956 0.440651 3.85360875 79 JPC 1165 200.5 22.169 0.566267 3.846467188 79 JPC 1165 204.5 22.327 0.595052 3.848078556 79 JPC 1165 208.5 22.484 0.420144 3.827345625 79 JPC 1165 212.5 22.641 0.557622 3.816313333 79 JPC 1165 216.5 22.799 0.399617 3.696914063 79 JPC 1165 220.5 22.956 -0.29642 3.8460025 79 JPC 1165 224.5 23.113 0.57374 3.859174444 79 JPC 1165 228.5 23.27 0.552348 3.816420938 79 JPC 1165 232.5 23.428 0.58811 3.855803333 79 JPC 1165 236.5 23.585 0.499722 3.755239375 79 JPC 1165 240.5 23.742 0.492349 3.793837813 79 JPC 1165 244.5 23.9 0.700845 3.786353333 79 JPC 1165 248.5 24.057 0.720935 3.75671625 79 JPC 1165 251.5 24.175 0.752619 3.891010333 79 JPC 1165 254.5 24.293 0.684974 3.59046825