# Healy-Oden Trans Arctic Expedition (HOTRAX) Grain Size, XRF, and Reflectance Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original reference when using these data, # plus the Online Resource and date accessed. # # # Online_Resource: http://hurricane.ncdc.noaa.gov/pls/paleox/f?p=519:1:::::P1_STUDY_ID:14169 # # Original_Source_URL: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleocean/hotrax/hotrax2009hly05-03xrf.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Paleoceanography #-------------------- # Contribution_Date # Date: 2013-03-14 #-------------------- # Title # Study_Name: Healy-Oden Trans Arctic Expedition (HOTRAX) Grain Size, XRF, and Reflectance Data #-------------------- # Investigators # Investigators: Ortiz, J.D.; Polyak, L.; Darby, D.A. #-------------------- # Description_and_Notes # # The XRF elements measurements were generated as follows: # Measurements were conducted at Ohio State University or Kent State University using the Kent State University Innov-X alpha series Handheld XRF scanner # Measurements were conducted in soils mode with concentration determined by the default Compton scattering mode with a 60-90 second integration time # merging standard and light element mode measurements # All values are reported as ppm # # The reported values are the raw average value +/- 1 sigma. When the internal variability was greater than 3 sigma, the mean value is reported in the 1-sigma error column and flagged as # below the limit of detection in the raw column. # Values listed as "adjusted" include the best estimate of the 95% of the sediment, which is finer than 45 um. The mean size of this fraction varies between 6 and 15 um in Holocene sediments from the Chukchi-Alaskan shelf and slope with the higher values closer to shore. Analysis of detailed size distributions of these Holocene deposits are compared to 34 sediment samples collected from sea ice across the Arctic Ocean and to Holocene sediment from central Arctic Ocean cores and indicate that similar textural parameters occur in all of these sediments. Principal components of these size distributions indicate that sea ice is an important link between the shelves and the central Arctic. Factor scores indicate nearly identical components in the clay and fine silt size fractions but very different components in the coarse silt for sea ice sediment and central Arctic ridge sediments compared to shelf and continental slope deposits. Sea ice must contribute to sedimentation in both of these Arctic regions, but bottom currents dominate in the slope region, forming drift deposits. # #--------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation Office of Polar Programs, Arctic Division # Grant: ARC-0612384, ARC-0612473, ARC-0612493, ODP-0525881 #--------------------- # Funding_Agency_Name: US Coast Guard # Grant: #-------------------- # Site_Information # Site_Name: HLY05-03-06JPC # Location: Ocean>Arctic Ocean # Country: # Northernmost_Latitude: 78.2938 # Southernmost_Latitude: 78.2938 # Easternmost_Longitude: -176.98615 # Westernmost_Longitude: -176.98615 # Elevation: -800 m #------------------ # Data_Collection # Core_Name: HLY05-03-06JPCxrf # First_Year: 8000 # Last_Year: 2000 # Time_Unit: CalYrBP # Core_Length: # Notes: #------------------ # Chronology # # # #------------------ # Variables # # End Description/Documentation (lines begin with #) # Data lines follow (have no #) # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: material, error, units, anomaly, period, archive, detail, method, C or N for Character or Numeric data) # Data line format: tab-delimited text, variable short name as header # KSU HOTRAX XRF element data for HLY05-03 cores Reading # Expedition CORE Coreid Section depth in section (cm) depth in core (cm) P (adjusted) P (raw) P(1-sigma error) S(adjusted) S (raw) S(1-sigma error) Cl(adjusted) Cl (raw) Cl(1-sigma error) K (adjusted) K (raw) K(1-sigma error) Ca(adjusted) Ca(raw) Ca (1-sigma error) Ti (adjusted) Ti (raw) Ti(1-sigma error) Cr (adjusted) Cr (raw) Cr(1-sigma error) Mn (adjusted) Mn (raw) Mn (1-sigma error) Fe (adjusted) Fe (raw) Fe (1-sigma error) Co (adjusted) Co (raw) Co(1-sigma error) Ni (adjusted) Ni (raw) Ni(1-sigma error) Cu (adjusted) Cu (raw) Cu(1-sigma error) Zn (adjusted) Zn (raw) Zn(1-sigma error) As (adjusted) As (raw) As(1-sigma error) Se (adjusted) Se (raw) Se(1-sigma error) Rb(adjusted) Rb(raw) Rb(1-sigma error) Sr(adjusted) Sr(raw) Sr (1-sigma error) Zr(adjusted) Zr(raw) Zr (1-sigma error) Mo (adjusted) Mo (raw) Mo(1-sigma error) Ag (adjusted) Ag (raw) Ag(1-sigma error) Cd (adjusted) Cd (raw) Cd(1-sigma error) Cd (adjusted) Sn (raw) Sn(1-sigma error) Sb (adjusted) Sb (raw) Sb(1-sigma error) I (adjusted) I (raw) I(1-sigma error) Ba (adjusted) Ba (raw) Ba (1-sigma error) Pb (adjusted) Pb (raw) Pb (1-sigma error) Rb/Sr (adjusted) Zr/Ti (adjusted) 6 HYL0503 6 06JPC 01 - W 4 4 "3,299"