# 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/sikes2016-41jpc.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 41JPC # Location: New Zealand # Country: New Zealand # Northernmost_Latitude: -39.88 # Southernmost_Latitude: -39.88 # Easternmost_Longitude: 177.67 # Westernmost_Longitude: 177.67 # Elevation: -3836 #--------------------------------------- # Data_Collection # Collection_Name: RR0503 41JPC Sikes2016 # First_Year: 29500 # Last_Year: 350 # 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 41 JPC 3836 2.5 0.3504 0.539729 2.63088 41 JPC 3836 6.5 0.9111 0.34645 2.82233 41 JPC 3836 8.5 1.1914 0.298271 2.41995 41 JPC 3836 12.5 1.752 0.614883 2.89829 41 JPC 3836 14.5 2.0324 0.262638 2.56344 41 JPC 3836 18.5 2.593 0.645619 2.71589 41 JPC 3836 20.5 2.8734 0.571846 2.90701 41 JPC 3836 24.5 3.434 0.478786 2.91274 41 JPC 3836 26.5 3.7143 0.610445 2.774425 41 JPC 3836 28.5 3.9947 0.575233 2.82037 41 JPC 3836 30.5 4.275 0.47587 2.878385 41 JPC 3836 32.5 4.5553 0.635713 2.93443 41 JPC 3836 34.5 4.8357 0.651479 2.846175 41 JPC 3836 36.5 5.116 0.611269 3.14941 41 JPC 3836 38.5 5.3963 0.40717 2.697035 41 JPC 3836 40.5 5.6766 0.380476 2.77975 41 JPC 3836 42.5 5.957 0.675372 2.93686 41 JPC 3836 44.5 6.2373 0.487049 2.8275 41 JPC 3836 46.5 6.5176 0.426446 3.149285 41 JPC 3836 48.5 6.798 0.425331 3.0512 41 JPC 3836 50.5 7.0783 0.351814 3.16619375 41 JPC 3836 52.5 7.3586 0.378079 3.30971375 41 JPC 3836 54.5 7.6389 0.42742 3.38680875 41 JPC 3836 56.5 7.9193 0.050294 3.01539875 41 JPC 3836 58.5 8.1996 0.453525 3.15197375 41 JPC 3836 60.5 8.4799 0.253861 3.5322 41 JPC 3836 62.5 8.7602 0.453188 3.27442375 41 JPC 3836 64.5 9.0406 0.271964 3.26887875 41 JPC 3836 66.5 9.3209 0.462593 3.34684875 41 JPC 3836 68.5 9.6012 0.285037 3.55030375 41 JPC 3836 70.5 9.8816 0.399767 3.738 41 JPC 3836 72.5 10.1619 0.311241 3.41537375 41 JPC 3836 74.5 10.4422 0.342015 3.41608375 41 JPC 3836 76.5 10.7225 0.063088 3.38861375 41 JPC 3836 78.5 11.0029 0.23833 3.79463875 41 JPC 3836 80.5 11.2832 0.018881 3.83451875 41 JPC 3836 82.5 11.5635 0.290112 3.70153375 41 JPC 3836 84.5 11.8439 0.097709 3.82975 41 JPC 3836 86.5 12.1242 0.070064 3.80983375 41 JPC 3836 90.5 12.6848 0.097485 3.78395375 41 JPC 3836 92.5 12.9652 0.180287 4.33338375 41 JPC 3836 94.5 13.2455 -0.24282 3.97989375 41 JPC 3836 96.5 13.5258 -0.0162 4.12768 41 JPC 3836 98.5 13.8061 0.101466 4.11804375 41 JPC 3836 100.5 14.0865 0.061617 4.20548 41 JPC 3836 102.5 14.3668 0.050626 4.35538 41 JPC 3836 106.5 14.9275 -0.05223 4.310511111 41 JPC 3836 108.5 15.2078 0.091506 4.37375 41 JPC 3836 112.5 15.7684 0.123443 4.46901 41 JPC 3836 114.5 16.0488 0.013098 4.483421111 41 JPC 3836 116.5 16.3291 0.052662 4.307674 41 JPC 3836 118.5 16.6094 0.049453 4.380761111 41 JPC 3836 120.5 16.8898 -0.12283 4.31813 41 JPC 3836 122.5 17.1701 -0.06901 4.05897 41 JPC 3836 124.5 17.4504 0.00733 4.33086 41 JPC 3836 126.5 17.7307 0.069681 4.11645 41 JPC 3836 128.5 18.0111 0.22712 4.59476 41 JPC 3836 130.5 18.2914 -0.02052 4.23659 41 JPC 3836 132.5 18.5717 0.146261 4.53194 41 JPC 3836 140.5 19.693 0.169255 4.54597 41 JPC 3836 144.5 20.2537 -0.04045 4.48601 41 JPC 3836 146.5 20.534 -0.01237 4.373961111 41 JPC 3836 148.5 20.8143 0.01224 4.360151111 41 JPC 3836 152.5 21.375 -0.36759 4.530241111 41 JPC 3836 156.5 21.9357 -0.35725 4.49387 41 JPC 3836 166.5 23.3373 -0.11728 4.194871111 41 JPC 3836 168.5 23.6176 -0.07887 4.49056 41 JPC 3836 170.5 23.898 -0.13941 4.369141111 41 JPC 3836 172.5 24.1783 -0.07294 4.388971111 41 JPC 3836 174.5 24.4586 -0.18948 4.466751111 41 JPC 3836 180.5 25.2996 -0.12449 4.26581 41 JPC 3836 182.5 25.5799 -0.40465 4.194201111 41 JPC 3836 184.5 25.8467 -0.08518 4.351081111 41 JPC 3836 186.5 26.1277 0.082643 4.322831111 41 JPC 3836 188.5 26.4087 0.05813 4.176751111 41 JPC 3836 190.5 26.6897 0.030823 4.391731111 41 JPC 3836 192.5 26.9707 0.060436 4.42992 41 JPC 3836 196.5 27.5327 0.148106 4.408201111 41 JPC 3836 198.5 27.8137 0.063051 4.298301111 41 JPC 3836 200.5 28.0947 0.037593 4.261081111 41 JPC 3836 202.5 28.3757 -0.02946 4.306151111 41 JPC 3836 204.5 28.6567 -0.12335 4.3199 41 JPC 3836 206.5 28.9377 -0.17632 4.263431111 41 JPC 3836 208.5 29.2187 0.041344 4.181791111 41 JPC 3836 210.5 29.500 -0.1506 4.2895