# 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-digest.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-MC3C1-2016digest # 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,F: insoluble; W: soluble ## Depth depth at sample end,,,meter,,Ice Cores,,,N, ## IceAge ice age,,,calendar kiloyear before present,,Ice Cores,,,N, ## 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 # #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: N/A Sample Depth IceAge 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 113F 113.12 1.1243 3.125 8.946 0.586 1.920 1.673 0.636 0.409 0.049 0.220 0.051 0.136 0.027 0.270 0.054 113W 113.12 1.1243 1.604 4.229 5.999 1.397 1.499 0.573 0.358 0.044 0.211 0.043 0.114 0.022 0.144 0.053 136F 136.12 1.5195 2.602 4.897 0.518 1.796 1.558 0.602 0.381 0.046 0.205 0.041 0.109 0.021 0.427 0.203 136W 136.12 1.5195 5.508 21.048 1.200 4.272 1.698 0.530 0.754 0.084 0.409 0.079 0.211 0.033 0.249 0.053 176F 176.1 2.2447 13.246 26.804 3.085 11.943 3.092 0.888 1.748 0.213 1.100 0.222 0.616 0.091 0.754 0.151 176W 176.1 2.2447 4.244 8.316 0.972 3.383 1.509 0.497 0.591 0.072 0.358 0.072 0.186 0.031 0.276 0.047 208F 208.13 3.1484 208.494 164.780 45.523 153.348 21.151 3.496 11.520 1.095 4.228 0.702 1.878 0.229 1.502 0.226 208W 208.13 3.1484 6.786 13.503 1.426 5.174 1.861 0.764 0.879 0.118 0.645 0.123 0.335 0.051 0.370 0.058 266F 264.8 4.7554 4.850 9.464 1.015 3.807 1.622 0.627 0.597 0.087 0.444 0.083 0.224 0.038 0.271 0.048 266W 264.8 4.7554 18.299 25.518 3.935 13.176 2.909 0.685 1.517 0.158 0.705 0.134 0.360 0.053 0.373 0.064 281F 279.48 5.3273 65.322 59.666 14.444 48.967 8.016 1.466 4.441 0.470 2.030 0.368 1.011 0.141 1.203 0.331 281W 279.48 5.3273 6.893 14.082 1.449 5.148 1.899 0.571 0.798 0.102 0.515 0.095 0.269 0.046 0.356 0.130 296F 294.68 5.9866 8.479 13.172 1.749 5.842 1.687 0.498 0.687 0.079 0.351 0.072 0.200 0.034 0.300 0.049 296W 294.68 5.9866 7.324 13.141 1.499 5.432 1.923 0.631 1.034 0.129 0.637 0.110 0.274 0.042 0.535 0.271 299F 297.5 6.1141 1.176 3.725 0.218 0.877 1.013 0.400 0.171 0.072 0.093 0.019 0.051 0.013 0.182 0.054 299W 297.5 6.1141 87.313 116.494 17.923 60.331 9.585 1.783 6.054 0.595 2.584 0.428 1.146 0.152 1.069 0.183 308F 306.5 6.5082 6.318 13.818 1.389 5.077 1.869 0.583 0.852 0.107 0.542 0.110 0.301 0.047 0.717 0.289 308W 306.5 6.5082 14.865 39.256 3.653 13.780 3.483 0.830 2.120 0.292 1.546 0.311 0.861 0.136 0.911 0.138 323F 321.5 7.3466 9.487 18.525 1.956 7.093 2.054 0.607 1.174 0.154 0.817 0.160 0.434 0.065 0.497 0.081 323W 321.5 7.3466 6.690 14.952 1.558 5.735 1.905 0.546 1.041 0.145 0.762 0.147 0.400 0.061 0.441 0.093 340F 339.14 9.4258 17.734 28.264 3.584 11.997 2.923 0.621 1.659 0.215 1.134 0.225 0.643 0.097 0.943 0.189 340W 339.14 9.4258 4.996 11.147 1.071 3.962 1.563 0.463 0.763 0.100 0.509 0.100 0.255 0.038 0.333 0.073 349F 347.6 10.4677 2.390 3.780 0.493 1.861 1.284 0.482 0.264 0.035 0.140 0.032 0.090 0.020 0.260 0.077 349W 347.6 10.4677 15.179 22.658 3.310 11.612 2.824 0.693 1.462 0.171 0.801 0.149 0.384 0.061 0.500 0.130 366F 364.6 13.013 4.514 10.034 1.005 3.821 1.489 0.514 0.669 0.090 0.481 0.104 0.288 0.043 0.379 0.064 366W 364.6 13.013 16.655 29.803 3.644 13.203 3.012 0.797 2.000 0.267 1.397 0.272 0.731 0.100 0.900 0.232 376F 374.7 15.506 94.359 233.106 23.846 93.280 20.988 4.917 19.192 2.840 16.693 3.419 9.559 1.375 9.018 1.290 392F 391.12 31.436 236.788 265.282 53.449 185.365 28.258 4.900 18.062 1.946 8.811 1.608 4.262 0.554 3.735 0.668 392W 391.12 31.436 82.595 104.096 17.833 62.489 10.863 1.986 8.251 1.034 5.149 0.958 2.495 0.343 2.436 0.504 Blank_1_F N/A N/A 0.001 0.072 0.003 0.090 0.280 0.689 0.050 0.005 0.031 0.388 0.002 0.004 0.012 0.006 Blank_2_W N/A N/A 0.002 0.055 0.004 0.054 0.276 0.638 0.045 0.006 0.006 0.002 0.004 0.005 0.012 0.007 Median samples N/A N/A 7.324 14.952 1.749 5.735 1.905 0.627 1.034 0.129 0.645 0.123 0.335 0.051 0.441 0.130 Median blanks N/A N/A 0.001 0.063 0.003 0.072 0.278 0.664 0.047 0.006 0.018 0.195 0.003 0.004 0.012 0.007