# Northern Hemisphere Foraminiferal Trace Metals and Stable Isotopes from the late Pliocene and the Holocene to the Last Glacial Maximum #----------------------------------------------------------------------- # World Data Center 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: http://www.ncdc.noaa.gov/paleo/study/17351 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/woodard2014/woodard2014-1208-hol-lgm.txt # # Archive: Paleoceanography #--------------------------------------- # Contribution_Date # Date: 2014-10-24 #--------------------------------------- # Title: Northern Hemisphere Benthic Foraminiferal Trace Metals and Stable Isotopes from the late Pliocene and the Holocene to the Last Glacial Maximum #--------------------------------------- # Investigators # Investigators: Woodard, Stella C.; Rosenthal, Yair; Miller, Kenneth G.; Wright, James D.; Chiu, Beverly K.; Lawrence, Kira T. #--------------------------------------- # Description and Notes # Description: All data was generated using benthic foraminifera Uvigerina sp. Records are not necessarily continuous. #--------------------------------------- # Publication # Authors: Woodard, Stella C.; Rosenthal, Yair; Miller, Kenneth G.; Wright, James D.; Chiu, Beverly K.; Lawrence, Kira T. # Published_Date_or_Year: 2014 # Published_Title: Antarctic Role in Northern Hemisphere Glaciation # Journal_Name: Science # Volume: # Issue: ScienceExpress # Pages: # Report Number: # DOI: 10.1126/science.1255586 # Abstract: Earth’s climate underwent a major transition from the warmth of the late Pliocene, when global surface temperatures were ~2-3°C higher than today, to extensive Northern Hemisphere glaciation (NHG) at ~2.73 Ma. We show that North Pacific deep waters were significantly colder (4oC) and likely fresher than North Atlantic deep water prior to the intensification of NHG. At ~2.73 Ma, the Atlantic-Pacific temperature gradient was reduced to <1°C suggesting the initiation of stronger heat transfer from the North Atlantic to the deep Pacific. We posit that increased glaciation of Antarctica, deduced from the 21±10 m sea-level fall from 3.15-2.75 Ma, and the development of a strong polar halocline, fundamentally altered deep ocean circulation, which enhanced inter-hemispheric heat and salt transport thereby contributing to the NHG. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: MG&G 1334691 #--------------------------------------- # Site Information # Site_Name: ODP1208 # Location: North Pacific Ocean # Country: # Northernmost_Latitude: 36.13 # Southernmost_Latitude: 36.13 # Easternmost_Longitude: 158.2 # Westernmost_Longitude: 158.2 # Elevation: -3346 #--------------------------------------- # Data_Collection # Collection_Name: ODP1208 Holocence-LGM Wo14 # First_Year: 22200 # Last_Year: 2400 # Time_Unit: cal yr BP # Core_Length: # Notes: #--------------------------------------- # Chronology: #--------------------------------------- # 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) ## depth_m Depth,,,revised meters composite depth,,,,,N ## age_calkaBP Age,,,kiloyears before present,,,,,N ## Mg/Ca-uvige Magnesium/Calcium,Uvigerina sp,,mmol/mol,,,,analytical technique: inductively coupled plasma mass spectroscopy,N ## Fe/Ca-uvige Iron/Calcium,Uvigerina sp,,umol/mol,,,,analytical technique: inductively coupled plasma mass spectroscopy,N ## Al/Ca-uvige Aluminum/Calcium,Uvigerina sp,,umol/mol,,,,analytical technique: inductively coupled plasma mass spectroscopy,N ## d13Cuvige Carbon stable isotopes,Uvigerina sp,,per mil,,,,analytical technique: IRMS,N ## d18Ouvige Oxygen stable isotopes,Uvigerina sp,,per mil,,,,analytical technique: IRMS,N ## notes ,,,,,,,,C # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NaN depth_m age_calkaBP Mg/Ca-uvige Fe/Ca-uvige Al/Ca-uvige d13Cuvige d18Ouvige notes 0.08 2.4 0.90 15.1 6 -0.54 3.40 198 1208A 001H 01W 8-10 0.08 2.4 1.03 14.3 9 NaN NaN 198 1208A 001H 01W 8-10 0.22 6.5 0.96 30.4 12 -0.50 3.56 198 1208A 001H 01W 22-24 0.22 6.5 1.10 21.1 49 NaN NaN 198 1208A 001H 01W 22-24 0.3 8.8 0.96 12.1 8 -0.75 3.91 198 1208A 001H 01W 30-32 0.3 8.8 1.02 29.0 22 NaN NaN 198 1208A 001H 01W 30-32 0.34 10.0 1.08 19.3 8 -0.90 3.87 198 1208A 001H 01W 34-36 0.34 10.0 0.89 21.7 12 NaN NaN 198 1208A 001H 01W 34-36 0.38 12.0 0.88 38.5 9 -0.96 3.95 198 1208A 001H 01W 38-40 0.38 12.0 0.96 41.8 16 NaN NaN 198 1208A 001H 01W 38-40 0.44 15.0 NaN NaN NaN -1.03 4.63 198 1208A 001H 01W 44-46 0.5 16.3 0.76 10.4 10 -1.18 4.67 198 1208A 001H 01W 50-52 0.5 16.3 0.90 4.63 22 NaN NaN 198 1208A 001H 01W 50-52 0.58 17.9 0.90 16.4 11 -1.05 4.69 198 1208A 001H 01W 58-60 0.58 17.9 0.73 3.47 10 NaN NaN 198 1208A 001H 01W 58-60 0.63 19.0 0.81 37.7 15 -1.24 4.94 198 1208A 001H 01W 63-65 0.73 20.1 0.84 9.1 11 -1.19 4.87 198 1208A 001H 01W 73-75 0.73 20.1 0.74 3.63 8 NaN NaN 198 1208A 001H 01W 73-75 0.83 21.2 0.75 9.3 11 NaN NaN 198 1208A 001H 01W 83-85 0.9 22.0 NaN NaN NaN -1.29 5.14 198 1208A 001H 01W 90-92 1.03 22.2 0.85 9.5 8 NaN NaN 198 1208A 001H 01W 103-105