# Juan de Fuca Ridge Sediment Physical Property Data over the last 700,000 Years #----------------------------------------------------------------------- # 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: https://www.ncdc.noaa.gov/paleo/study/20408 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/costa2016/costa2016-12pc-coarse.txt # # Archive: Paleoceanography # # Parameter_Keywords: age control, magnetic susceptibility, oxygen isotopes, physical properties #--------------------------------------- # Contribution_Date # Date: 2016-08-15 #--------------------------------------- # Title # Study_Name: Juan de Fuca Ridge Sediment Physical Property Data over the last 700,000 Years #--------------------------------------- # Investigators # Investigators: Costa, K.M.; McManus, J.F.; Boulahanis, B.; Carbotte, S.M.; Winckler, G.; Huybers,P.J.; Langmuir, C.H. #--------------------------------------- # Description and Notes # Description: #--------------------------------------- # Publication # Authors: Costa, K.M., J.F. McManus, B. Boulahanis, S.M. Carbotte, G. Winckler, P.J. Huybers, and C.H. Langmuir # Published_Date_or_Year: 2016 # Published_Title: Sedimentation, stratigraphy and physical properties of sediment on the Juan de Fuca Ridge # Journal_Name: Marine Geology # Volume: in press # Edition: # Issue: # Pages: # Report Number: # DOI: 10.1016/j.margeo.2016.08.003 # Online_Resource: # Full_Citation: # Abstract: Sedimentation near mid-ocean ridges may differ from pelagic sedimentation due to the influence of the ridges' rough topography on sediment deposition and transport. This study explores whether the near-ridge environment responds to glacial-interglacial changes in climate and oceanography. New benthic d18O, radiocarbon, multi-sensor track, and phys- ical property (sedimentation rates, density, magnetic susceptibility) data for seven cores on the Juan de Fuca Ridge pro- vide multiple records covering the past 700,000 years of oceanographic history of the Northeast Pacific Ocean. System- atic variations in sediment density and coarse fraction correspond to glacial-interglacial cycles identified in benthic d18O, and these observations may provide a framework for mapping the d18O chronostratigraphy via sediment density to other locations on the Juan de Fuca Ridge and beyond. Sedimentation rates generally range from 0.5 to 3 cm/kyr, with back- ground pelagic sedimentation rates close to 1 cm/kyr. Variability in sedimentation rates close to the ridge likely reflects remobilization of sediment caused by the high relief of the ridge bathymetry. Sedimentation patterns primarily reflect di- vergence of sedimentation rates with distance from the ridge axis and glacial-interglacial variation in sedimentation that may reflect carbonate preservation cycles as well as preferential remobilization of fine material. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: NSF # Grant: AGS-1338832 #--------------------------------------- # Site Information # Site_Name: AT26-19 12PC # Location: North Pacific # Country: # Northernmost_Latitude: 44.8975 # Southernmost_Latitude: 44.8975 # Easternmost_Longitude: 130.50433 # Westernmost_Longitude: 130.50433 # Elevation: -2689 #--------------------------------------- # Data_Collection # Collection_Name: 12PC Coarse Costa16 # First_Year: 603920 # Last_Year: 19870 # Time_Unit: cal yr BP # Core_Length: # Notes: #--------------------------------------- # Chronology_Information # 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_cm depth,,,cm,,,,,N ## age_calkaBP age,,,calendar ka BP,,,,,N ## coarse% coarse fraction,sediment,,weight percent,,paleoceanography,>63um,,N #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NaN depth_cm age_calkaBP coarse% 1.5 19.87 21.4 5.5 26.44 21.4 9.5 43.26 20.2 13.5 55.80 18.0 21.5 60.82 18.8 25.5 63.33 23.6 29.5 65.84 12.6 33.5 73.59 10.2 37.5 89.17 33.5 41.5 105.19 10.8 45.5 120.93 4.9 49.5 128.56 16.1 53.5 132.42 32.9 57.5 136.93 32.9 61.5 141.43 36.3 65.5 145.94 40.5 69.5 150.44 38.2 73.5 154.94 36.7 77.5 159.45 33.6 81.5 163.95 33.9 85.5 168.46 27.4 89.5 172.96 24.9 93.5 176.62 22.3 105.5 184.23 7.9 109.5 187.68 4.9 110.5 188.55 4.2 113.5 193.00 3.4 117.5 201.71 3.8 120.5 208.24 1.8 121.5 210.42 3.1 124.5 216.95 1.2 129.5 227.83 2.8 130.5 230.01 3.3 133.5 236.54 1.4 137.5 245.24 1.4 140.5 250.24 7.2 141.5 251.15 3.8 145.5 254.81 8.3 148.5 257.55 8.9 149.5 258.47 8.8 152.4 261.12 8.1 156.4 264.78 8.5 160.4 268.43 6.9 162.4 270.26 6.3 164.4 271.92 4.1 166.4 272.21 3.3 168.4 272.21 2.8 170.4 272.21 1.5 172.4 272.21 1.2 174.4 272.21 1.8 176.4 272.21 1.1 178.4 272.21 1.6 180.4 272.21 1.7 182.4 272.21 1.0 184.4 272.21 0.7 186.4 272.21 0.7 188.4 272.21 0.4 190.4 272.21 0.5 192.4 272.21 0.1 194.4 272.21 0.1 196.4 272.21 0.3 198.4 272.21 1.3 202.4 272.21 0.2 204.4 272.21 3.9 206.4 272.21 0.0 209.4 272.21 0.1 212.4 273.50 0.4 214.4 275.78 0.3 216.4 278.07 0.3 218.4 280.35 0.6 220.4 282.63 1.0 224.4 287.20 2.1 228.4 290.99 2.1 230.4 292.28 1.3 232.4 293.56 1.8 236.4 296.13 2.8 240.4 298.70 3.8 244.4 301.26 4.6 248.4 303.83 4.2 250.4 305.12 2.0 252.4 306.40 2.1 256.4 308.97 3.0 260.4 312.87 2.5 264.4 317.66 3.8 268.4 322.45 3.6 272.4 327.24 3.1 276.4 332.04 3.0 280.4 336.83 2.9 284.4 342.53 2.8 288.4 350.43 4.9 292.4 358.32 4.6 296.4 366.22 4.8 300.4 374.12 3.5 302.4 378.07 2.9 306.4 385.84 2.7 310.4 392.75 1.9 314.4 399.65 4.1 318.4 406.55 5.0 322.4 412.91 4.0 326.4 417.22 8.4 330.4 421.53 9.3 334.4 425.53 11.1 338.4 427.69 11.9 342.4 429.23 17.4 346.4 430.78 21.7 350.4 432.32 18.8 354.4 433.87 21.8 358.4 435.41 22.5 362.4 436.96 23.3 366.4 438.50 22.9 370.4 440.11 19.0 374.4 442.39 16.6 378.4 444.71 17.4 382.4 447.03 21.3 386.4 449.35 30.8 390.4 451.67 25.2 394.4 453.99 21.2 398.4 456.30 24.5 402.4 458.62 24.9 406.4 460.94 21.2 410.4 463.26 20.3 414.4 465.58 10.9 418.4 467.90 4.7 422.4 470.22 6.6 426.4 472.57 6.6 430.4 475.38 3.2 434.4 478.21 3.9 438.4 482.66 5.8 442.4 489.90 5.9 446.4 497.14 43.4 450.4 504.38 43.8 454.4 511.62 37.0 458.4 518.86 46.7 462.4 525.64 45.3 466.4 529.88 52.7 470.4 534.12 40.1 474.4 538.37 36.6 478.4 542.61 35.3 482.4 546.85 35.4 486.4 551.09 34.9 490.4 555.33 31.2 494.4 559.57 28.8 498.4 565.20 27.9 502.4 571.65 23.5 506.4 578.10 20.2 510.4 584.55 13.7 514.4 590.22 8.3 518.4 591.66 18.2 522.4 593.16 14.1 526.4 595.29 24.2 530.4 597.45 14.6 534.4 599.61 18.8 538.4 601.76 10.9 542.4 603.92 13.1