# 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-z2112.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: Z2112 # Location: New Zealand # Country: New Zealand # Northernmost_Latitude: -33.53 # Southernmost_Latitude: -33.53 # Easternmost_Longitude: 166.53 # Westernmost_Longitude: 166.53 # Elevation: -2858 #--------------------------------------- # Data_Collection # Collection_Name: Z2112 Sikes2016 # First_Year: 28600 # Last_Year: 5789 # 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 Z2112 2858 3.5 5.789 0.460 2.560 Z2112 2858 10.7 6.1966 0.390 3.150 Z2112 2858 15.9 6.491 0.190 3.210 Z2112 2858 15.9 6.491 0.210 3.160 Z2112 2858 21.1 6.7854 0.460 2.570 Z2112 2858 22.2 6.8477 0.360 2.510 Z2112 2858 23.2 6.9043 0.370 2.490 Z2112 2858 24.3 6.9666 0.450 2.810 Z2112 2858 24.3 6.9666 0.190 3.250 Z2112 2858 24.3 6.9666 0.340 2.700 Z2112 2858 25.3 7.0232 0.410 2.500 Z2112 2858 26.4 7.0855 0.050 2.620 Z2112 2858 26.4 7.0855 0.400 2.650 Z2112 2858 27.4 7.1421 0.450 2.570 Z2112 2858 28.5 7.2044 0.290 2.600 Z2112 2858 29.5 7.261 0.370 2.480 Z2112 2858 32.5 8.1211 0.400 2.770 Z2112 2858 33.5 8.4078 0.470 2.570 Z2112 2858 34.5 8.6945 0.380 2.690 Z2112 2858 35.5 8.9812 0.360 2.790 Z2112 2858 36.5 9.2679 0.330 2.640 Z2112 2858 37.5 9.5546 0.400 2.640 Z2112 2858 38.5 9.8413 0.360 2.800 Z2112 2858 39.5 10.128 0.170 3.320 Z2112 2858 40.5 11.021 0.170 3.400 Z2112 2858 41.5 11.083 0.240 3.150 Z2112 2858 41.5 11.083 0.340 2.880 Z2112 2858 41.5 11.083 0.360 2.810 Z2112 2858 42.5 11.145 0.420 2.910 Z2112 2858 42.5 11.145 -0.030 2.810 Z2112 2858 42.5 11.145 0.350 3.860 Z2112 2858 43.5 11.3899 0.210 3.410 Z2112 2858 43.5 11.3899 0.320 3.090 Z2112 2858 43.5 11.3899 0.290 3.140 Z2112 2858 44.5 11.6348 0.320 2.880 Z2112 2858 45.5 11.8798 0.350 2.870 Z2112 2858 47 12.2472 0.310 2.860 Z2112 2858 50.5 13.1044 0.210 3.290 Z2112 2858 51.5 13.3493 0.120 3.700 Z2112 2858 52.5 13.5942 -0.050 3.500 Z2112 2858 53.5 13.8392 0.150 3.680 Z2112 2858 54.5 14.0841 -0.090 4.190 Z2112 2858 55.5 14.329 -0.060 3.860 Z2112 2858 56.5 14.4178 -0.170 3.820 Z2112 2858 57.5 14.5066 -0.100 3.850 Z2112 2858 58.5 14.5954 -0.120 3.820 Z2112 2858 59.5 14.6842 0.140 3.740 Z2112 2858 60.5 14.773 0.030 3.740 Z2112 2858 61.5 15.0039 -0.150 4.020 Z2112 2858 62.5 15.2347 -0.100 3.950 Z2112 2858 63.5 15.4656 0.080 3.690 Z2112 2858 64.5 15.6964 0.100 3.690 Z2112 2858 65.6 15.9504 -0.030 3.950 Z2112 2858 66.5 16.1581 0.030 3.890 Z2112 2858 67.5 16.389 -0.080 4.220 Z2112 2858 68.5 16.6051 -0.050 4.170 Z2112 2858 72.5 17.4696 -0.100 4.100 Z2112 2858 75.5 18.118 -0.060 4.280 Z2112 2858 82.8 19.3525 -0.420 4.220 Z2112 2858 82.8 19.3525 -0.160 4.230 Z2112 2858 82.8 19.3525 -0.270 4.360 Z2112 2858 88.5 20.3164 -0.140 4.180 Z2112 2858 93.5 21.1619 -0.380 4.270 Z2112 2858 98.5 22.0075 -0.080 4.100 Z2112 2858 98.5 22.0075 -0.170 4.250 Z2112 2858 98.5 22.0075 -0.310 4.350 Z2112 2858 103.5 22.853 -0.230 4.090 Z2112 2858 110 23.9517 -0.140 4.020 Z2112 2858 113.8 24.594 -0.160 3.940 Z2112 2858 118.5 25.3884 -0.230 4.050 Z2112 2858 123.5 26.2336 -0.060 3.850 Z2112 2858 128.5 27.0787 -0.120 4.080 Z2112 2858 133.5 27.9239 -0.270 3.930 Z2112 2858 137.5 28.6 0.040 3.880