# Taylor Dome Ice Core 31,000 Year Mineral Dust Radiogenic Isotope and Elemental Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # 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/23450 # Description: NOAA Landing Page # Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/icecore/antarctica/taylor/taylor2016dust-leach.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # Data_Type: Ice Cores # # Dataset_DOI: # # Parameter_Keywords: geochemistry, radiogenic isotopes, physical properties #--------------------------------------- # Contribution_Date # Date: 2020-06-18 #--------------------------------------- # File_Last_Modified_Date # Date: 2020-06-18 #--------------------------------------- # Title # Study_Name: Taylor Dome Ice Core 31,000 Year Mineral Dust Radiogenic Isotope and Elemental Data #--------------------------------------- # Investigators # Investigators: Aarons, S.M.; Aciego, S.M.; Gabrielli, P.; Delmonte, B.; Koornneef, J.M.; Wegner, A.; Blakowski, M.A. #--------------------------------------- # Description_Notes_and_Keywords # Description: Mineral dust concentration and rare earth element composition from the Taylor Dome ice core, Antarctica, for the past 31,000 years. Data were measured with both Traditional Acid Leach and Full Acid Digestion methods. # Provided Keywords: Antarctica, dust, ice core, strontium, neodymium, rare earth elements #--------------------------------------- # Publication # Authors: S.M. Aarons, S.M. Aciego, P. Gabrielli, B. Delmonte, J.M. Koornneef, A. Wegner, M.A. Blakowski # Published_Date_or_Year: 2016-06-15 # Published_Title: The impact of glacier retreat from the Ross Sea on local climate: Characterization of mineral dust in the Taylor Dome ice core, East Antarctica # Journal_Name: Earth and Planetary Science Letters # Volume: 444 # Edition: # Issue: # Pages: 34-44 # Report_Number: # DOI: 10.1016/j.epsl.2016.03.035 # Online_Resource: https://www.sciencedirect.com/science/article/pii/S0012821X16301224 # Full_Citation: # Abstract: Recent declines in ice shelf and sea ice extent experienced in polar regions highlight the importance of evaluating variations in local weather patterns in response to climate change. Airborne mineral particles (dust) transported through the atmosphere and deposited on ice sheets and glaciers in Antarctica and Greenland can provide a robust set of tools for resolving the evolution of climatic systems through time. Here we present the first high time resolution radiogenic isotope (strontium and neodymium) data for Holocene dust in a coastal East Antarctic ice core, accompanied by rare earth element composition, dust concentration, and particle size distribution during the last deglaciation. We aim to use these combined ice core data to determine dust provenance, with variations indicative of shifts in either dust production, sources, and/or transport pathways. We analyzed a series of 17 samples from the Taylor Dome (77 47'47"S, 158 43'26"E) ice core, 113-391 m in depth from 1.1-31.4 ka. Radiogenic isotopic and rare earth element compositions of dust during the last glacial period are in good agreement with previously measured East Antarctic ice core dust records. In contrast, the Holocene dust dataset displays a broad range in isotopic and rare earth element compositions, suggesting a shift from long-range transported dust to a more variable, local input that may be linked to the retreat of the Ross Ice Shelf during the last deglaciation. Observed changes in the dust cycle inferred from a coastal East Antarctic ice core can thus be used to infer an evolving local climate. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: University of Michigan # Grant: Rackham Graduate School; Turner Award #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation (NSF) # Grant: OPP Antarctic Glaciology Award 1246702 #--------------------------------------- # Site_Information # Site_Name: Taylor Dome # Location: Antarctica # Northernmost_Latitude: -77.79638889 # Southernmost_Latitude: -77.79638889 # Easternmost_Longitude: 158.72388889 # Westernmost_Longitude: 158.72388889 # Elevation: 2365 #--------------------------------------- # Data_Collection # Collection_Name: TYD-MC3C1-2016-leach # First_Year: 31436 # Last_Year: 1124 # Time_Unit: cal yr BP # Core_Length: 278m # Notes: secton of core #--------------------------------------- # Chronology_Information # Chronology: # In Aarons et al., 2016 the chronology used is after both Monnin et al. (2004) (1-20 ka) and Brook et al. (2000) (20-60 ka). # However, an updated chronology from Baggenstos et al., 2018 is more accurate. # Top Depth Ice age # [m] [year BP] # 113.12 1100 # 136.12 1500 # 176.1 2200 # 208.13 3100 # 264.8 4800 # 279.48 5300 # 294.68 6000 # 297.5 6100 # 306.5 6500 # 321.5 7300 # 339.14 9400 # 347.6 10500 # 364.6 13000 # 374.7 15500 # 380.3 19700 # 381.5 20700 # 392.12 31400 # #--------------------------------------- # 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) ## Sample sample identification,,,,,Ice Cores,,,C, ## Depth depth at sample end,,,meter,,Ice Cores,,,N,top depth ## IceAge ice age,,,calendar kiloyear before present,,Ice Cores,,,N, ## dust1-5 dust,bulk ice,,parts per billion,,Ice Cores,,,N,1-5um ## dust1-10 dust,bulk ice,,parts per billion,,Ice Cores,,,N,1-10um ## dust1-20 dust,bulk ice,,parts per billion,,Ice Cores,,,N,1-20um ## Accum_ice accumulation rate,bulk ice,,centimeter per year,,Ice Cores,,,N,ice equivalent ## Accum_water accumulation rate,bulk ice,,centimeter per year,,Ice Cores,,,N,water equivalent ## Dust1-5ng/cm2 accumulation rate,dust,,nanogram per square centimeter per year,,Ice Cores,,,N,1-5um ## Dust1-5mg/m2 accumulation rate,dust,,milligram per square meter per year,,Ice Cores,,,N,1-5um ## Dust1-10ng/cm2 accumulation rate,dust,,nanogram per square centimeter per year,,Ice Cores,,,N,1-10um ## Dust1-10mg/m2 accumulation rate,dust,,milligram per square meter per year,,Ice Cores,,,N,1-10um ## Dust1-20ng/cm2 accumulation rate,dust,,nanogram per square centimeter per year,,Ice Cores,,,N,1-20um ## Dust1-20mg/m2 accumulation rate,dust,,milligram per square meter per year,,Ice Cores,,,N,1-20um ## La_139 Lanthanum,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,La139 ## Ce_140 Cerium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Ce140 ## Pr_141 Praseodymium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Pr141 ## Nd_144 Neodymium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Nd144 ## Eu_151 Europium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Eu151 ## Sm_152 Samarium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Sm152 ## Gd_158 Gadolinium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Gd158 ## Tb_159 Terbium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Tb159 ## Dy_164 Dysprosium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Dy164 ## Ho_165 Holmium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Ho165 ## Er_166 Erbium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Er166 ## Tm_169 Thulium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Tm169 ## Yb_174 Ytterbium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Yb174 ## Lu_175 Lutetium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Lu175 ## Na_23 sodium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Na23 ## Sr_86 strontium,bulk ice,,Parts per Trillion,,Ice Cores,,inductively-coupled plasma sector field mass spectrometry,N,Sr86 # #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NaN Sample Depth IceAge dust1-5 dust1-10 dust1-20 Accum_ice Accum_water Dust1-5ng/cm2 Dust1-5mg/m2 Dust1-10ng/cm2 Dust1-10mg/m2 Dust1-20ng/cm2 Dust1-20mg/m2 La_139 Ce_140 Pr_141 Nd_144 Eu_151 Sm_152 Gd_158 Tb_159 Dy_164 Ho_165 Er_166 Tm_169 Yb_174 Lu_175 Na_23 Sr_86 113a 113.120 1.124 9.335 14.185 14.185 7.300 6.570 61.331 0.613 93.195 0.932 93.195 0.932 0.704 3.659 0.487 1.658 0.140 0.483 0.310 0.042 0.190 0.039 0.101 0.016 0.094 0.019 68724.03 18.03 113b NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 23161.62 6.32 136a 113.120 1.124 14.455 20.215 52.185 7.300 6.570 94.969 0.950 132.813 1.328 342.855 3.429 0.964 4.618 0.613 2.022 0.125 0.533 0.294 0.036 0.181 0.033 0.088 0.015 0.067 0.014 14511.25 2.72 136b 136.120 1.520 13.640 16.545 25.540 6.900 6.210 84.704 0.847 102.744 1.027 158.603 1.586 4.038 1.751 0.244 0.928 0.129 0.377 0.194 0.027 0.132 0.026 0.080 0.011 0.061 0.015 25970.10 10.14 176a 176.100 2.245 NaN NaN NaN 6.750 6.075 NaN NaN NaN NaN NaN NaN 0.280 1.535 0.215 0.748 0.124 0.357 0.185 0.022 0.102 0.022 0.056 0.010 0.056 0.011 11852.46 2.05 176b 176.100 2.245 15.000 18.680 28.615 6.750 6.075 91.125 0.911 113.481 1.135 173.836 1.738 0.342 1.841 0.250 0.875 0.143 0.382 0.188 0.021 0.132 0.022 0.059 0.011 0.067 0.015 10439.30 5.00 208a 208.130 3.148 26.225 37.315 42.150 6.750 6.075 159.317 1.593 226.689 2.267 256.061 2.561 0.620 2.639 0.251 0.909 0.138 0.381 0.179 0.024 0.108 0.021 0.057 0.010 0.064 0.011 17895.70 3.99 208b 208.130 3.148 13.885 20.045 33.945 6.750 6.075 84.351 0.844 121.773 1.218 206.216 2.062 0.314 1.650 0.230 0.828 0.141 0.394 0.166 0.023 0.093 0.020 0.053 0.009 0.052 0.011 12261.31 1.39 266a 264.800 4.755 13.600 15.825 18.155 7.000 6.300 85.680 0.857 99.698 0.997 114.377 1.144 0.522 2.971 0.607 1.316 0.157 0.496 0.272 0.033 0.154 0.031 0.081 0.013 0.069 0.012 14425.18 5.10 266b 264.800 4.755 14.330 24.840 32.390 7.000 6.300 90.279 0.903 156.492 1.565 204.057 2.041 0.492 2.763 0.397 1.341 0.132 0.552 0.248 0.032 0.176 0.032 0.093 0.014 0.082 0.016 11853.21 1.04 281a 279.480 5.327 20.825 31.990 55.045 7.000 6.300 131.198 1.312 201.537 2.015 346.784 3.468 0.431 2.373 0.284 1.035 0.132 0.429 0.198 0.026 0.125 0.026 0.064 0.010 0.062 0.014 13110.56 1.54 281b 279.480 5.327 24.140 45.100 87.940 7.000 6.300 152.082 1.521 284.130 2.841 554.022 5.540 0.644 3.254 0.452 1.555 0.159 0.545 0.326 0.042 0.188 0.037 0.094 0.016 0.085 0.014 8841.76 3.79 296a 294.680 5.987 13.005 18.240 20.725 7.200 6.480 84.272 0.843 118.195 1.182 134.298 1.343 1.329 6.507 0.943 3.057 0.224 0.853 0.511 0.063 0.274 0.051 0.138 0.022 0.121 0.022 9647.65 14.32 296b 294.680 5.987 16.575 24.385 44.925 7.200 6.480 107.406 1.074 158.015 1.580 291.114 2.911 0.371 2.020 0.278 0.952 0.153 0.426 0.201 0.027 0.131 0.029 0.062 0.011 0.063 0.011 10355.62 16.13 299a 297.500 6.114 14.910 19.965 49.765 7.000 6.300 93.933 0.939 125.780 1.258 313.520 3.135 3.339 16.535 2.212 7.715 0.307 1.556 0.950 0.099 0.419 0.070 0.178 0.021 0.130 0.024 14867.25 28.27 299b 297.500 6.114 33.910 49.400 75.180 7.000 6.300 213.633 2.136 311.220 3.112 473.634 4.736 0.706 3.682 0.520 1.919 0.187 0.652 0.344 0.046 0.208 0.039 0.109 0.015 0.107 0.029 7779.56 20.94 308a 306.500 6.508 28.967 29.916 29.916 6.300 5.670 164.241 1.642 169.623 1.696 169.623 1.696 1.344 2.673 0.329 1.190 0.128 0.429 0.228 0.032 0.158 0.030 0.069 0.010 0.072 0.010 7870.41 NaN 308b 306.500 6.508 17.865 19.505 19.505 6.300 5.670 101.295 1.013 110.592 1.106 110.592 1.106 1.262 2.364 0.281 0.934 0.132 0.388 0.183 0.025 0.123 0.024 0.061 0.008 0.048 0.016 13761.29 NaN 323a 321.500 7.347 31.369 38.340 52.412 5.800 5.220 163.747 1.637 200.133 2.001 273.590 2.736 3.231 6.515 0.681 2.279 0.177 0.663 0.368 0.052 0.305 0.054 0.145 0.019 0.139 0.017 15020.69 NaN 323b 321.500 7.347 13.745 15.980 19.466 5.800 5.220 71.749 0.717 83.414 0.834 101.612 1.016 1.072 2.047 0.231 0.795 0.096 0.361 0.151 0.020 0.112 0.018 0.052 0.008 0.048 0.007 10012.25 NaN 340a 339.140 9.426 76.470 85.205 101.565 5.000 4.500 344.115 3.441 383.423 3.834 457.043 4.570 1.523 7.716 1.005 3.356 0.160 0.913 0.588 0.077 0.432 0.080 0.212 0.032 0.226 0.047 16940.68 17.00 340b 339.140 9.426 11.415 18.775 32.225 5.000 4.500 51.368 0.514 84.488 0.845 145.013 1.450 0.370 1.948 0.263 0.960 0.148 0.463 0.212 0.026 0.119 0.024 0.066 0.009 0.143 0.011 16564.75 15.35 349a 347.600 10.468 19.680 28.200 39.540 4.500 4.050 79.704 0.797 114.210 1.142 160.137 1.601 0.370 2.100 0.293 1.075 0.163 0.507 0.244 0.047 0.332 0.079 0.306 0.020 0.085 0.016 11191.62 14.51 349b 347.600 10.468 20.055 25.440 29.655 4.500 4.050 81.223 0.812 103.032 1.030 120.103 1.201 0.678 3.724 0.502 1.862 0.203 0.671 0.373 0.050 0.253 0.051 0.123 0.019 0.103 0.021 13129.70 18.45 366a 364.600 13.013 29.556 33.318 36.025 2.500 2.250 66.501 0.665 74.966 0.750 81.057 0.811 2.074 4.057 0.458 1.497 0.146 0.516 0.299 0.040 0.245 0.040 0.116 0.015 0.104 0.013 37539.67 NaN 366b 364.600 13.013 26.731 35.692 68.976 2.500 2.250 60.144 0.601 80.307 0.803 155.196 1.552 1.002 2.323 0.233 0.830 0.093 0.400 0.176 0.023 0.137 0.025 0.069 0.008 0.062 0.008 20507.49 NaN 376a 374.700 15.506 363.405 370.348 370.348 2.000 1.800 654.129 6.541 666.626 6.666 666.626 6.666 23.563 52.107 6.235 22.609 1.224 5.588 4.918 0.711 3.846 0.773 1.890 0.279 1.678 0.309 76688.54 NaN 376b 374.700 15.506 537.116 541.404 544.625 2.000 1.800 966.809 9.668 974.527 9.745 980.325 9.803 36.013 78.726 9.454 34.899 1.885 8.541 7.705 1.075 6.123 1.172 3.228 0.437 2.739 0.394 93934.47 NaN 381 380.300 19.730 177.608 189.475 202.283 1.000 0.900 159.848 1.598 170.528 1.705 182.055 1.821 NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 383 381.500 20.736 305.708 342.375 357.342 0.750 0.675 206.353 2.064 231.103 2.311 241.206 2.412 NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 392a 391.120 31.436 93.730 115.240 128.600 1.000 0.900 84.357 0.844 103.716 1.037 115.740 1.157 7.268 37.312 5.114 17.808 0.706 3.710 2.941 0.343 1.629 0.299 0.793 0.105 0.661 0.091 36452.61 106.41 392b 391.120 31.436 99.640 113.565 169.090 1.000 0.900 89.676 0.897 102.209 1.022 152.181 1.522 2.601 14.884 1.991 7.287 0.428 1.984 1.516 0.209 1.126 0.222 0.603 0.080 0.481 0.071 39399.71 90.11 Blank_1 NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.019 0.108 0.018 0.062 0.783 0.289 0.030 0.004 0.018 0.001 0.004 0.004 0.006 0.003 6848.34 66.90 Blank_2 NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.055 0.289 0.037 0.155 0.263 0.090 0.046 0.005 0.016 0.006 0.039 0.003 0.046 0.011 4166.64 29.15 Blank_3 NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.052 6.182 0.029 0.143 0.324 0.132 0.032 0.006 0.009 0.006 0.034 0.003 0.974 0.011 2527.52 4.30 Median sample NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.964 2.971 0.452 1.341 0.148 0.507 0.272 0.036 0.181 0.033 0.093 0.015 0.085 0.015 NaN Median blank NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.052 0.289 0.029 0.143 0.324 0.132 0.032 0.005 0.016 0.006 0.034 0.003 0.046 0.011 NaN