Grain-size analysis of sediment cores collected in 2009 offshore from Palos Verdes, California

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What does this data set describe?

Title:
Grain-size analysis of sediment cores collected in 2009 offshore from Palos Verdes, California
Abstract:
This part of the data release includes grain-size analysis of sediment cores collected in 2009 offshore of Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute's remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC). One spreadsheet (PalosVerdesCores_Info.xlsx) contains core name, location, and length. One spreadsheet (PalosVerdesCores_MSCLdata.xlsx) contains Multi-Sensor Core Logger P-wave velocity, gamma-ray density, and magnetic susceptibility whole-core logs. One zipped folder of .bmp files (PalosVerdesCores_Photos.zip) contains continuous core photographs of the archive half of each core. One spreadsheet (PalosVerdesCores_GrainSize.xlsx) contains laser particle grain size sample information and analytical results. One spreadsheet (PalosVerdesCores_Radiocarbon.xlsx) contains radiocarbon sample information, results, and calibrated ages. One zipped folder of DICOM files (PalosVerdesCores_CT.zip) contains raw computed tomography (CT) image files. One .pdf file (PalosVerdesCores_Figures.pdf) contains combined displays of data for each core, including graphic diagram descriptive logs. This particular metadata file describes the information contained in the file PalosVerdesCores_GrainSize.xlsx. All cores are archived by the U.S. Geological Survey Pacific Coastal and Marine Science Center.
  1. How might this data set be cited?
    Maier, Katherine L., Paull, Charles K., McGann, Mary, and Conrad, James E., 20160325, Grain-size analysis of sediment cores collected in 2009 offshore from Palos Verdes, California: data release DOI:10.5066/F7G44NB6, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Maier, Katherine L., Paull, Charles K., McGann, Mary, and Conrad, James E., 2016, Sediment core data from offshore Palos Verdes, California: data release DOI:10.5066/F7G44NB6, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -118.15795898325
    East_Bounding_Coordinate: -117.99316406138
    North_Bounding_Coordinate: 33.593666691854
    South_Bounding_Coordinate: 33.355402040003
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 2009
    Ending_Date: 2010
    Currentness_Reference:
    ground condition at the time the cores were collected
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: spreadsheet (.xlsx file)
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      Indirect_Spatial_Reference: none
      This is a Point data set.
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is WGS 84.
      The ellipsoid used is WGS 84.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: water depth (depth below sea level)
      Depth_Resolution: 0.1
      Depth_Distance_Units: meters below sea level
      Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
  7. How does the data set describe geographic features?
    Laser-particle grain-size analyses: Laboratory
    Table containing grain-size analyses data (Source: producer defined)
    Sample ID
    Name of sample (core and depth in core) (Source: producer defined)
    ValueDefinition
    DR135 VC-131 9-10 cmsample from 9 to 10 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 19-20 cmsample from 19 to 20 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 29-30 cmsample from 29 to 30 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 49-50 cmsample from 49 to 50 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 59-60 cmsample from 59 to 60 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 69-70 cmsample from 79 to 80 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 74-76 cmsample from 74 to 76 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 79-81 cmsample from 79 to 81 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 82-84 cmsample from 82 to 84 cm below top of core liner in ROV vibracore DR135 VC-131
    DR136 VC-134 9-10 cmsample from 9 to 10 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 18-20 cmsample from 18 to 20 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 60-61 cmsample from 60 to 61 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 65-67 cmsample from 65 to 67 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 67-68 cmsample from 67 to 68 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 71-73 cmsample from 71 to 73 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 74-75 cmsample from 74 to 75 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 60-61 cm duplicateduplicate analysis of sample from 60 to 61 cm below top of core liner in ROV vibracore DR136 VC-134
    DR125 VC-89 5-6 cmsample from 5 to 6 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 9-11 cmsample from 9 to 11 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 19-21 cmsample from 19 to 21 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 25-26 cmsample from 25 to 26 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 29-31 cmsample from 29 to 31 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 39-41 cmsample from 39 to 41 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 45-46 cmsample from 45 to 46 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 48-49 cmsample from 48 to 49 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 53-54 cmsample from 53 to 54 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 57-58 cmsample from 57 to 58 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 59-61 cmsample from 59 to 61 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 69-71 cmsample from 69 to 71 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 79-81 cmsample from 79 to 81 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 89-91 cmsample from 89 to 91 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 99-101 cmsample from 99 to 101 cm below top of core liner in ROV vibracore DR125 VC-89
    DR125 VC-89 109-111 cmsample from 109 to 111 cm below top of core liner in ROV vibracore DR125 VC-89
    DR136 VC-134 76-77 cmsample from 76 to 77 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 85-86 cmsample from 85 to 86 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 89-90 cmsample from 89 to 90 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 109-111 cmsample from 109 to 111 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 121-122 cmsample from 121 to 122 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 124 cmsample at 124 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 125 cmsample at 125 cm below top of core liner in ROV vibracore DR136 VC-134
    DR136 VC-134 149-150 cmsample from 149 to 150 cm below top of core liner in ROV vibracore DR136 VC-134
    DR125 VC-86 61-62 cmsample from 61 to 62 cm below top of core liner in ROV vibracore DR125 VC-86
    DR125 VC-86 70-71 cmsample from 70 to 71 cm below top of core liner in ROV vibracore DR125 VC-86
    DR125 VC-87 50-51 cmsample from 50 to 51 cm below top of core liner in ROV vibracore DR125 VC-87
    DR125 VC-87 54-55 cmsample from 54 to 55 cm below top of core liner in ROV vibracore DR125 VC-87
    DR135 VC-131 37-38 cmsample from 37 to 38 cm below top of core liner in ROV vibracore DR135 VC-131
    DR135 VC-131 43-44 cmsample from 43 to 44 cm below top of core liner in ROV vibracore DR135 VC-131
    DR125 VC-90 53-54 cmsample from 53 to 54 cm below top of core liner in ROV vibracore DR125 VC-90
    DR125 VC-90 55-56 cmsample from 55 to 56 cm below top of core liner in ROV vibracore DR125 VC-90
    DR125 VC-89 99-101 cm duplicateduplicate sample from 99 to 101 cm below top of core liner in ROV vibracore DR125 VC-89
    DR136 VC-134 109-111 cm duplicateduplicate sample from 109 to 111 cm below top of core liner in ROV vibracore DR136 VC-134
    PV2-G1 9-10 cmsample from 9 to 10 cm below top of core liner in gravity core PV2-G1
    PV2-G1 22-23 cmsample from 22 to 23 cm below top of core liner in gravity core PV2-G1
    PV2-G1 29-30 cmsample from 29 to 30 cm below top of core liner in gravity core PV2-G1
    PV2-G1 39-40 cmsample from 39 to 40 cm below top of core liner in gravity core PV2-G1
    PV2-G1 49-50 cmsample from 49 to 50 cm below top of core liner in gravity core PV2-G1
    PV2-G1 114-116 cmsample from 114 to 116 cm below top of core liner in gravity core PV2-G1
    PV2-G1 139-140 cmsample from 139 to 140 cm below top of core liner in gravity core PV2-G1
    PV2-G1 149-150 cmsample from 149 to 150 cm below top of core liner in gravity core PV2-G1
    PV2-G1 159-160 cmsample from 159 to 160 cm below top of core liner in gravity core PV2-G1
    PV9-G1 9-10 cmsample from 9 to 10 cm below top of core liner in gravity core PV9-G1
    PV9-G1 16-17 cmsample from 16 to 17 cm below top of core liner in gravity core PV9-G1
    PV9-G1 18-19 cmsample from 18 to 19 cm below top of core liner in gravity core PV9-G1
    PV9-G1 24-25 cmsample from 24 to 25 cm below top of core liner in gravity core PV9-G1
    PV9-G1 26-27 cmsample from 26 to 27 cm below top of core liner in gravity core PV9-G1
    PV2-G1 119 cmsample at 119 cm below top of core liner in gravity core PV2-G1
    PV2-G1 119-121 cmsample from 119 to 121 cm below top of core liner in gravity core PV2-G1
    PV2-G1 129-131 cmsample from 129 to 131 cm below top of core liner in gravity core PV2-G1
    PV2-G1 134-135 cmsample from 134 to 135 cm below top of core liner in gravity core PV2-G1
    PV2-G1 9-10 cm duplicateduplicate sample from 9 to 10 cm below top of core liner in gravity core PV2-G1
    Lab ID
    unique identifier for laboratory processing (Source: producer defined)
    ValueDefinition
    SI209SC_01sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_02sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_03sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_04sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_05sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_06sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_07sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_08sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_09sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_10sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_11sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_12sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_13sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_14sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    SI209SC_15sample analyzed in November 2015 from a USGS gravity core collected on cruise number S-I2-09-SC
    W110SSC_01sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_02sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_03sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_04sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_05sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_06sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_07sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_08sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_09sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_10sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_11sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_12sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_13sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_14sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_15sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_16sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    W110SSC_17sample analyzed in November 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-SI209SC_01sample analyzed in March 2015 from a USGS gravity core vibracore collected on cruise number S-I2-09-SC
    15-SI209SC_02sample analyzed in March 2015 from a USGS gravity core vibracore collected on cruise number S-I2-09-SC
    15-SI209SC_03sample analyzed in March 2015 from a USGS gravity core vibracore collected on cruise number S-I2-09-SC
    15-SI209SC_04sample analyzed in March 2015 from a USGS gravity core vibracore collected on cruise number S-I2-09-SC
    15-W110SSC_01sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_02sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_03sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_04sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_05sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_06sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_07sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_08sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_09sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_10sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_11sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_12sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_13sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_14sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_15sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_16sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_17sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_18sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_19sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_20sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_21sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_22sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_23sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_24sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_25sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_26sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_27sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_28sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_29sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_30sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_31sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_32sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_33sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    15-W110SSC_34sample analyzed in March 2015 from MBARI vibracore collected on cruise number W-1-10-SC
    Date Analyzed
    month and year of analysis (Source: producer defined)
    ValueDefinition
    Nov-15November 2015
    Mar-15March 2015
    MM Phi Bin
    millimeter and corresponding phi size fraction (Source: producer defined)
    ValueDefinition
    Bin %bin percent
    16 -4.00
    16 mm -4 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    13.5 -3.75
    13.5 mm -3.75 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    11.2 -3.50
    11.2 mm -3.5 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    9.51 -3.25
    9.51 mm -3.25 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    8 -3.00
    8 mm -3 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    6.73 -2.75
    6.73 mm -2.75 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    5.66 -2.50
    5.66 mm -2.5 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    4.76 -2.25
    4.76 mm -2.25 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    4 -2.00
    4 mm -2.00 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    3.36 -1.75
    3.36 mm -1.75 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    2.83 -1.50
    2.83 mm -1.5 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    2.38 -1.25
    2.38 mm -1.25 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    2 -1
    2 mm -1 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    1.68 -0.75
    1.68 mm -0.75 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    1.41 -0.5
    1.41 mm -0.5 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    1.19 -0.25
    1.19 mm -0.25 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    1 0
    1 mm 0 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.8409 0.249994
    0.8409 mm 0.249994 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.7071 0.499993
    0.7071 mm 0.499993 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.5946 0.750009
    0.5946 mm 0.750009 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.5 1
    0.5 mm 1 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.4204 1.24999
    0.4204 mm 1.24999 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.3536 1.500014
    0.3536 mm 1.500014 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.2973 1.750009
    0.2973 mm 1.750009 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.25 2
    0.25 mm 2 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.2102 2.250028
    0.2102 mm 2.250028 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.1768 2.499973
    0.1768 mm 2.499973 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.1487 2.750009
    0.1487 mm 2.750009 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.125 3
    0.125 mm 3 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.1051 3.250028
    0.1051 mm 3.250028 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.088388 3.499973
    0.088388 mm 3.499973 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.074325 3.749912
    0.074325 mm 3.749912 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.0625 4
    0.0625 mm 4 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.052556 4.249891
    0.052556 mm 4.249891 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.044194 4.500136
    0.044194 mm 4.500136 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.037163 4.750106
    0.037163 mm 4.750106 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.03125 5
    0.03125 mm 5 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.026278 5.249891
    0.026278 mm 5.249891 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.022097 5.49981
    0.022097 mm 5.49981 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.018581 5.750106
    0.018581 mm 5.750106 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.015625 5.999538
    0.015625 mm 5.999538 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.013139 6.249891
    0.013139 mm 6.249891 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.011049 6.49981
    0.011049 mm 6.49981 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.009291 6.750106
    0.009291 mm 6.750106 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.007813 7.000462
    0.007813 mm 7.000462 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.00657 7.249891
    0.00657 mm 7.249891 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.005524 7.50116
    0.005524 mm 7.05116 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.004645 7.748554
    0.004645 mm 7.748554 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.003906 7.998616
    0.003906 mm 7.998616 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.003285 8.252088
    0.003285 mm 8.252088 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.002762 8.501116
    0.002762 mm 8.501116 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.002323 8.751659
    0.002323 mm 8.751659 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.001953 9.00231
    0.001953 mm 9.00231 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.001642 9.252088
    0.001642 mm 9.252088 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.001381 9.501116
    0.001381 mm 9.501116 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.001161 9.751659
    0.001161 mm 9.751659 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.000983 9.994931
    0.000983 mm 9.994931 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.000821 10.25209
    0.000821 mm 10.25209 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.000691 10.50112
    0.000691 mm 10.50112 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.000581 10.75166
    0.000581 mm 10.75166 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.000492 10.99493
    0.000492 mm 10.99493 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.00041 11.2521
    0.00041 mm 11.2521 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.00035 11.480357
    0.00035 mm 11.480357 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.000241 12.024678
    0.000241 mm 12.024678 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    0.00012 13.024678
    0.00012 mm 13.024678 Phi Bin (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    % Gravel
    percent of sample greater than 2 mm (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    % Sand
    percent of sample less than 2 mm and greater than 63 microns (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    % Silt
    percent of sample less than 63 microns and greater than 4 microns (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    % Clay
    percent of sample less than 4 microns (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    % Mud
    percent of sample less than 63 microns (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Gravel/Sand
    ratio of gravel to sand (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:0
    Units:dimensionless
    Sand/Silt
    ratio of sand to silt (Source: producer defined)
    Range of values
    Minimum:0.071
    Maximum:4.659
    Units:dimensionless
    Silt/Clay
    ratio of silt to clay (Source: producer defined)
    Range of values
    Minimum:2.964
    Maximum:8.282
    Units:dimensionless
    Sand/Clay
    ratio of sand to clay (Source: producer defined)
    Range of values
    Minimum:0.299
    Maximum:32.86
    Units:dimensionless
    Sand/Mud
    ratio of sand to mud (Source: producer defined)
    Range of values
    Minimum:0.57
    Maximum:4.031
    Units:dimensionless
    Gravel/Mud
    ratio of gravel to mud (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:0
    Units:dimensionless
    Interpolated sizes used in graphical statistics D5 Phi
    Phi size at D5 for sample (Source: producer defined)
    Range of values
    Minimum:2.249
    Maximum:3.971
    Units:Phi size
    Interpolated sizes used in graphical statistics D10 Phi
    Phi size at D10 for sample (Source: producer defined)
    Range of values
    Minimum:2.667
    Maximum:4.293
    Units:Phi size
    Interpolated sizes used in graphical statistics D16 Phi
    Phi size at D16 for sample (Source: producer defined)
    Range of values
    Minimum:2.897
    Maximum:4.649
    Units:Phi size
    Interpolated sizes used in graphical statistics D25 Phi
    Phi size at D25 for sample (Source: producer defined)
    Range of values
    Minimum:3.069
    Maximum:5.116
    Units:Phi size
    Interpolated sizes used in graphical statistics D50 Phi
    Phi size at D50 for sample (Source: producer defined)
    Range of values
    Minimum:3.446
    Maximum:6.389
    Units:Phi size
    Interpolated sizes used in graphical statistics D75 Phi
    Phi size at D75 for sample (Source: producer defined)
    Range of values
    Minimum:3.889
    Maximum:7.876
    Units:Phi size
    Interpolated sizes used in graphical statistics D84 Phi
    Phi size at D84 for sample (Source: producer defined)
    Range of values
    Minimum:4.154
    Maximum:8.663
    Units:Phi size
    Interpolated sizes used in graphical statistics D90 Phi
    Phi size at D90 for sample (Source: producer defined)
    Range of values
    Minimum:4.586
    Maximum:9.341
    Units:Phi size
    Interpolated sizes used in graphical statistics D95 Phi
    Phi size at D95 for sample (Source: producer defined)
    Range of values
    Minimum:5.931
    Maximum:10.017
    Units:Phi size
    Interpolated sizes used in graphical statistics D5 mm
    mm size at D5 for sample (Source: producer defined)
    Range of values
    Minimum:0.001
    Maximum:0.0164
    Units:millimeter
    Interpolated sizes used in graphical statistics D10 mm
    mm size at D10 for sample (Source: producer defined)
    Range of values
    Minimum:0.0015
    Maximum:0.0416
    Units:millimeter
    Interpolated sizes used in graphical statistics D16 mm
    mm size at D16 for sample (Source: producer defined)
    Range of values
    Minimum:0.0025
    Maximum:0.0562
    Units:millimeter
    Interpolated sizes used in graphical statistics D25 mm
    mm size at D25 for sample (Source: producer defined)
    Range of values
    Minimum:0.0043
    Maximum:0.0675
    Units:millimeter
    Interpolated sizes used in graphical statistics D50 mm
    mm size at D50 for sample (Source: producer defined)
    Range of values
    Minimum:0.0119
    Maximum:0.0918
    Units:millimeter
    Interpolated sizes used in graphical statistics D75 mm
    mm size at D75 for sample (Source: producer defined)
    Range of values
    Minimum:0.0288
    Maximum:0.1191
    Units:millimeter
    Interpolated sizes used in graphical statistics D84 mm
    mm size at D84 for sample (Source: producer defined)
    Range of values
    Minimum:0.0399
    Maximum:0.1343
    Units:millimeter
    Interpolated sizes used in graphical statistics D90 mm
    mm size at D90 for sample (Source: producer defined)
    Range of values
    Minimum:0.051
    Maximum:0.1574
    Units:millimeter
    Interpolated sizes used in graphical statistics D95 mm
    mm size at D95 for sample (Source: producer defined)
    Range of values
    Minimum:0.0637
    Maximum:0.2104
    Units:millimeter
    Folk and Ward F-W Median
    Phi size median for sample by Folk and Ward (1957) method (Source: producer defined)
    Range of values
    Minimum:3.44557
    Maximum:6.38887
    Units:Phi size
    Folk and Ward F-W Mean
    Phi size mean for sample by Folk and Ward (1957) method (Source: producer defined)
    Range of values
    Minimum:3.51358
    Maximum:6.56697
    Units:Phi size
    Folk and Ward F-W Sorting
    sorting for sample by Folk and Ward (1957) method (Source: producer defined)
    Range of values
    Minimum:0.78046
    Maximum:2.09708
    Units:Phi size
    Folk and Ward F-W Skewness
    skewness for sample by Folk and Ward (1957) method (Source: producer defined)
    Range of values
    Minimum:0.14409
    Maximum:0.5795
    Units:Phi size
    Folk and Ward F-W Kurtosis
    Kurtosis for sample by Folk and Ward (1957) method (Source: producer defined)
    Range of values
    Minimum:0.8857
    Maximum:1.97816
    Units:Phi size
    Inman Inman Median
    Phi size median for sample by Inman (1952) method (Source: producer defined)
    Range of values
    Minimum:3.44557
    Maximum:6.38887
    Units:Phi size
    Inman Inman Mean
    Phi size mean for sample by Inman (1952) method (Source: producer defined)
    Range of values
    Minimum:3.54759
    Maximum:6.65602
    Units:Phi size
    Inman Inman Sorting
    sorting for sample by Inman (1952) method (Source: producer defined)
    Range of values
    Minimum:0.581761
    Maximum:2.127118
    Units:Phi size
    Inman Inman Skew 16-84
    skewness for sample (D16-D84) by Inman (1952) method (Source: producer defined)
    Range of values
    Minimum:0.13309
    Maximum:0.492434
    Units:Phi size
    Inman Inman Skew 05-95
    skewness for sample (D5-D95) by Inman (1952) method (Source: producer defined)
    Range of values
    Minimum:0.24268
    Maximum:1.59188
    Units:Phi size
    Inman Inman Kurtosis
    Kurtosis for sample by Inman (1952) method (Source: producer defined)
    Range of values
    Minimum:0.50809
    Maximum:1.77711
    Units:Phi size
    Trask Trask Median
    Phi size median for sample by Trask (1930) method (Source: producer defined)
    Range of values
    Minimum:0.01193
    Maximum:0.09179
    Units:Phi size
    Trask Trask Mean
    Phi size mean for sample by Trask (1930) method (Source: producer defined)
    Range of values
    Minimum:0.1655
    Maximum:0.09333
    Units:Phi size
    Trask Trask Sorting
    sorting for sample by Trask (1930) method (Source: producer defined)
    Range of values
    Minimum:1.29204
    Maximum:2.77845
    Units:Phi size
    Trask Trask Skewness
    skewness for sample by Trask (1930) method (Source: producer defined)
    Range of values
    Minimum:0.56534
    Maximum:0.95482
    Units:Phi size
    Trask Trask Kurtosis
    kurtosis for sample by Trask (1930) method (Source: producer defined)
    Range of values
    Minimum:0.2295
    Maximum:0.30162
    Units:Phi size
    1st moment Mean Phi
    moment measure of mean (Source: producer defined)
    Range of values
    Minimum:3.70727
    Maximum:6.567848
    Units:Phi size
    1st moment Mean mm
    moment measure of mean (Source: producer defined)
    Range of values
    Minimum:0.010541
    Maximum:0.07656
    Units:millimeters
    2nd moment Variance
    moment measure of variance (Source: producer defined)
    Range of values
    Minimum:1.553188
    Maximum:4.11505
    Units:Phi size
    2nd moment Std. Dev.
    moment measure of standard deviation (Source: producer defined)
    Range of values
    Minimum:1.24627
    Maximum:2.100358
    Units:Phi size
    3rd moment Skewness
    moment measure of skewness (Source: producer defined)
    Range of values
    Minimum:0.30634
    Maximum:3.300874
    Units:Phi size
    4th moment Kurtosis
    moment measure of kurtosis (Source: producer defined)
    Range of values
    Minimum:2.350436
    Maximum:15.963646
    Units:Phi size
    Mode in Phi
    sample mode (Source: producer defined)
    Range of values
    Minimum:3.625
    Maximum:10.377
    Units:Phi size
    Entity_and_Attribute_Overview:
    Laser-particle grain-size analyses sample and analytical results are presented in a single combined table. Sample ID is given as the original sediment-core ID (see PalosVerdesCores_Info.xlsx, this data release, for more information) followed by the depth of the sample within the core (measured from the top of the core liner) in centimeters (cm). A unique Lab ID is also assigned to each sample. Date analyzed is given as month-year (2015). Resulting grain size for each sample is given as percentage in millimeter (mm) and quarter-phi size bins. The data are combined to generate percentage gravel (larger than 2 mm), sand (2 mm - 63 microns), silt (63 - 4 microns), clay (smaller than 4 microns), and mud (clay and silt), and ratios of these grain-size groups. Interpolated grain-size statistics, three different calculations (Folk and Ward, 1957; Inman, 1952; Trask, 1930) of median, mean, sorting, skewness, and kurtosis are also presented, as well as moment measures of mean, median, variance, standard deviation, skewness, kurtosis, and mode in either phi or millimeter units.
    Entity_and_Attribute_Detail_Citation:
    Sediment-core laser-particle grain-size analyses are available in file PalosVerdesCores_GrainSize.xlsx at:https://doi.org/10.5066/F7G44NB6

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Katherine L. Maier
    • Charles K. Paull
    • Mary McGann
    • James E. Conrad
  2. Who also contributed to the data set?
    U.S. Geological Survey Pacific Coastal and Marine Science Center and Monterey Bay Aquarium Research Institute
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA
    US

    831-427-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

The sediment cores and subsequent core data were collected to investigate the Palos Verdes Fault and continental slope sedimentation.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 2015 (process 1 of 4)
    The USGS recovered gravity cores with the R/V Robert Gordon Sproul in 2009 from six sites flanking the Palos Verdes Fault on the continental slope northwest of San Gabriel Canyon (see cruise ID S-I2-09-SC (http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC) for additional information), and in 2010, the Monterey Bay Aquarium Research Institute (MBARI) collected vibracores along transects in the same area using their remotely operated vehicle (ROV) Doc Ricketts aboard the R/V Western Flyer (see cruise ID W-1-10-SC (http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC) for additional information). The original does were sub-sampled in the lab.
    Date: 2015 (process 2 of 4)
    Grain-size analyses on 70 samples (66 analyses and 4 duplicates) were conducted at the U.S. Geological Survey Pacific Coastal and Marine Science Center Sediments Lab in Santa Cruz, California. Grain-size samples were processed by (1) soaking in a hydrogen peroxide solution, (2) centrifuge removal of salts, (3) sieving into sand (2–0.063 mm) and silt and clay (less than 0.063 mm) size fractions, and (4) treatment of the clay fraction with a 10% sodiumhexametaphosphate solution. Each sample fraction was dried, weighed, and analyzed using a Beckman Coulter LS 13 320 laser-diffraction particle-size analyzer measuring in quarter phi bins. Laboratory analyses were conducted by Angela Tan and Katherine Maier. Resulting data for sand and mud analyses were quantitatively combined using pcSDSZ Sediment Size Analysis Software for Windows.
    Date: 02-Oct-2025 (process 3 of 4)
    Data and metadata files were moved to a different location on ScienceBase, resulting in a change of ID number in the Online_Linkage and Network_Resources URLs of the metadata. In addition, edits were made as needed to bring the metadata up to current PCMSC standards including standardizing doi# links, correcting typos, adding disclaimers, and refining keywords. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. No data were changed. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version. Person who carried out this activity:
    Susan A Cochran
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission St.
    Santa Cruz, CA
    United States

    831-460-7545 (voice)
    scochran@usgs.gov
    Date: 19-Oct-2020 (process 4 of 4)
    Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Brothers, D.S., Conrad, J.E., Maier, K.L., Paull, C.K., McGann, M., and Caress, D.W., 2015, The Palos Verdes Fault offshore southern California: Late Pleistocene to Present tectonic geomorphology, seascape evolution and slip-rate estimate based on AUV and ROV surveys.

    Online Links:

    Maier, K.L., Brothers, D.S., Paull, C.K., McGann, M., Caress, D.W., and Conrad, J.E., 2016, Records of continental slope sediment flow morphodynamic responses to gradient and active faulting from integrated AUV and ROV data, offshore Palos Verdes, southern California Borderland.

    Online Links:

    Folk, R.L., and Ward, W.C., 1957, Brazos River bar, a study in the significance of grain-size parameters.

    Online Links:

    Inman, D.L., 1952, Measures for describing the size distribution of sediments.

    Online Links:

    Trask, P.D., 1930, Mechanical analysis of sediments by centrifuge.

    Online Links:

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    No formal attribute accuracy tests were conducted
  2. How accurate are the geographic locations?
    No formal positional accuracy tests were conducted
  3. How accurate are the heights or depths?
    No formal positional accuracy tests were conducted
  4. Where are the gaps in the data? What is missing?
    Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    No formal logical accuracy tests were conducted

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: none
Use_Constraints:
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and Monterey Bay Aquarium Research Institute as the originator(s) of the dataset and in products derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey-ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO
    USA

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 19-Oct-2020
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA
US

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F7G44NB6/PalosVerdesCores_GrainSize_Metadata.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:17:11 2021