Grain size and bulk density of sediment cores from Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2014

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What does this data set describe?

Title:
Grain size and bulk density of sediment cores from Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2014
Abstract:
Grain size distribution and bulk density are reported for sediment push cores from two flooded agricultural tracts, Little Holland Tract and Liberty Island, in the Sacramento-San Joaquin Delta, California. Push core samples were collected from 14 sites by the U.S Geological Survey in August, 2014. Each core was analyzed at multiple depths to investigate variations in particle sizes with depth below the sediment surface. The same sites were sampled again in 2016 (https://www.sciencebase.gov/catalog/item/5a73aa70e4b0a9a2e9e172de). These data provide insight into the variation of particle size distributions in space, bed depth, and time.
Supplemental_Information:
Information about the data collection field activities can be found at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-655-FA
  1. How might this data set be cited?
    Lacy, Jessica R, Dailey, Evan T, and Carlson, Emily M, 2018, Grain size and bulk density of sediment cores from Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2014: data release doi:10.5066/F7V1241K, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Lacy, Jessica R, Dailey, Evan T, and Carlson, Emily M, 2018, Bed sediment properties in Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2014 to 2017: data release doi:10.5066/F7V1241K, 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: -121.67414
    East_Bounding_Coordinate: -121.6543
    North_Bounding_Coordinate: 38.32258
    South_Bounding_Coordinate: 38.26698
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/5a73a58fe4b0a9a2e9e172cf?name=LHT-LI_SampleMeans_2014_Depths.png&allowOpen=true (PNG)
    Image map showing average values of median grain size (excluding gravel) and ratio of sand, silt, and clay for samples 0 to 2 cm deep (left) and 4 to 5 cm deep (right) at each sampling location.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 25-Aug-2014
    Ending_Date: 26-Aug-2014
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Comma-separated values
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      Indirect_Spatial_Reference:
      Data were collected in the Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California
      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 1.0E-5. Longitudes are given to the nearest 1.0E-5. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is World Geodetic System 1984 (WGS84).
      The ellipsoid used is WGS84.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
  7. How does the data set describe geographic features?
    GrainsizeBD_LHT-LI_2014Cores.csv
    Table containing attribute information associated with the dataset (Source: Producer defined)
    FACS/FAN I.D.
    Unique U.S. Geological Survey field activity identifier. (Source: Producer defined) Unique U.S. Geological Survey field activity identifier.
    Sample I.D.
    Sample identifier (Source: Producer defined) Unique identifier for samples; assigned in the field.
    Lab I.D.
    Sample identifier for sediment lab (Source: Producer defined) Unique identifier for samples; assigned in the sediment lab.
    Date Collected
    Date in month/day/year format of sample collection. (Source: Producer defined)
    Range of values
    Minimum:08/25/2014
    Maximum:08/26/2014
    Units:Date in month/day/year format
    Time (PDT)
    Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT). (Source: Producer defined)
    Range of values
    Minimum:00:00:00
    Maximum:23:59:59
    Units:hours:minutes:seconds format, Pacific Daylight Time (PDT)
    Site
    Unique identifier of sampling locations. (Source: Producer defined) Unique identifier of sampling locations.
    Latitude
    Latitude of sample location in decimal degrees, north. (Source: Producer defined)
    Range of values
    Minimum:38.26698
    Maximum:38.32258
    Units:Decimal degrees
    Longitude
    Longitude of sample location in decimal degrees, east. (Source: Producer defined)
    Range of values
    Minimum:-121.67414
    Maximum:-121.6543
    Units:Decimal degrees
    Sample Type
    Type of sample collected (Source: Producer defined)
    ValueDefinition
    section of push coreSample collected with push core
    Core Depth
    The midpoint of the depth into the sediment bed of the sample (Source: producer defined)
    Range of values
    Minimum:0.5
    Maximum:17
    Units:centimeters
    Thickness
    The thickness (starting depth to the ending depth) of the sediment core sampled (Source: producer defined)
    Range of values
    Minimum:1
    Maximum:2
    Units:centimeters
    Wt. percent in -4.00 phi bin or 16 mm bin
    Weight percent of sample with grain diameter greater than -4.00 phi, or 16 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in -3.75 phi bin or 13.5 mm bin
    Weight percent of sample with grain diameter between -4.00 and -3.75 phi, or 13.5 and 16 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in -3.50 phi bin or 11.2 mm bin
    Weight percent of sample with grain diameter between -3.75 and -3.50 phi, or 11.2 and 13.5 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in -3.25 phi bin or 9.51 mm bin
    Weight percent of sample with grain diameter between -3.50 and -3.25 phi, or 9.51 and 11.2 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in -3.00 phi bin or 8 mm bin
    Weight percent of sample with grain diameter between -3.25 and -3.00 phi, or 8 and 9.51 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in -2.75 phi bin or 6.73 mm bin
    Weight percent of sample with grain diameter between -3.00 and -2.75 phi, or 6.73 and 8 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in -2.50 phi bin or 5.66 mm bin
    Weight percent of sample with grain diameter between -2.75 and -2.50 phi, or 5.66 and 6.73 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:2.790096
    Units:percentage
    Wt. percent in -2.25 phi bin or 4.76 mm bin
    Weight percent of sample with grain diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.725846
    Units:percentage
    Wt. percent in -2.00 phi bin or 4 mm bin
    Weight percent of sample with grain diameter between -2.25 and -2.00 phi, or 4 and 4.76 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:2.738409
    Units:percentage
    Wt. percent in -1.75 phi bin or 3.36 mm bin
    Weight percent of sample with grain diameter between -2.00 and -1.75 phi, or 3.36 and 4 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.244173
    Units:percentage
    Wt. percent in -1.50 phi bin or 2.83 mm bin
    Weight percent of sample with grain diameter between -1.75 and -1.50 phi, or 2.83 and 3.36 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.074472
    Units:percentage
    Wt. percent in -1.25 phi bin or 2.38 mm bin
    Weight percent of sample with grain diameter between -1.50 and -1.25 phi, or 2.38 and 2.83 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.986188
    Units:percentage
    Wt. percent in -1.00 phi bin or 2 mm bin
    Weight percent of sample with grain diameter between -1.25 and -1.00 phi, or 2 and 2.38 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.906031
    Units:percentage
    Wt. percent in -0.75 phi bin or 1.68 mm bin
    Weight percent of sample with grain diameter between -1.00 and -0.75 phi, or 1.68 and 2 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.341055
    Units:percentage
    Wt. percent in -0.50 phi bin or 1.41 mm bin
    Weight percent of sample with grain diameter between -0.75 and -0.50 phi, or 1.41 and 1.68 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.369077
    Units:percentage
    Wt. percent in -0.25 phi bin or 1.19 mm bin
    Weight percent of sample with grain diameter between -0.50 and -0.25 phi, or 1.19 and 1.41 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.381086
    Units:percentage
    Wt. percent in 0.00 phi bin or 1 mm bin
    Weight percent of sample with grain diameter between -0.25 and 0.00 phi, or 1 and 1.19 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.401102
    Units:percentage
    Wt. percent in 0.25 phi bin or 0.8409 mm bin
    Weight percent of sample with grain diameter between 0.00 and 0.25 phi, or 0.8409 and 1 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.433127
    Units:percentage
    Wt. percent in 0.50 phi bin or 0.7071 mm bin
    Weight percent of sample with grain diameter between 0.25 and 0.50 phi, or 0.7071 and 0.8409 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:1.545418
    Units:percentage
    Wt. percent in 0.75 phi bin or 0.5946 mm bin
    Weight percent of sample with grain diameter between 0.50 and 0.75 phi, or 0.5946 and 0.7071 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.000422
    Maximum:1.805099
    Units:percentage
    Wt. percent in 1.00 phi bin or 0.5 mm bin
    Weight percent of sample with grain diameter between 0.75 and 1.00 phi, or 0.5 and 0.5946 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.019309
    Maximum:2.026778
    Units:percentage
    Wt. percent in 1.25 phi bin or 0.4204 mm bin
    Weight percent of sample with grain diameter between 1.00 and 1.25 phi, or 0.4204 and 0.5 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.003402
    Maximum:2.223594
    Units:percentage
    Wt. percent in 1.50 phi bin or 0.3536 mm bin
    Weight percent of sample with grain diameter between 1.25 and 1.50 phi, or 0.3536 and 0.4204 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.022004
    Maximum:2.918086
    Units:percentage
    Wt. percent in 1.75 phi bin or 0.2973 mm bin
    Weight percent of sample with grain diameter between 1.50 and 1.75 phi, or 0.2973 and 0.3536 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.018999
    Maximum:4.142586
    Units:percentage
    Wt. percent in 2.00 phi bin or 0.25 mm bin
    Weight percent of sample with grain diameter between 1.75 and 2.00 phi, or 0.25 and 0.2973 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.00787
    Maximum:6.802661
    Units:percentage
    Wt. percent in 2.25 phi bin or 0.2102 mm bin
    Weight percent of sample with grain diameter between 2.00 and 2.25 phi, or 0.2102 and 0.25 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.019193
    Maximum:10.589709
    Units:percentage
    Wt. percent in 2.50 phi bin or 0.1768 mm bin
    Weight percent of sample with grain diameter between 2.25 and 2.50 phi, or 0.1768 and 0.2102 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.019581
    Maximum:12.693624
    Units:percentage
    Wt. percent in 2.75 phi bin or 0.1487 mm bin
    Weight percent of sample with grain diameter between 2.50 and 2.75 phi, or 0.1487 and 0.1768 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.012172
    Maximum:11.922189
    Units:percentage
    Wt. percent in 3.00 phi bin or 0.125 mm bin
    Weight percent of sample with grain diameter between 2.75 and 3.00 phi, or 0.125 and 0.1487 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.014407
    Maximum:8.907409
    Units:percentage
    Wt. percent in 3.25 phi bin or 0.1051 mm bin
    Weight percent of sample with grain diameter between 3.00 and 3.25 phi, or 0.1051 and 0.125 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.025812
    Maximum:5.534952
    Units:percentage
    Wt. percent in 3.50 phi bin or 0.08839 mm bin
    Weight percent of sample with grain diameter between 3.25 and 3.50 phi, or 0.08839 and 0.1051 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.024044
    Maximum:3.024051
    Units:percentage
    Wt. percent in 3.75 phi bin or 0.07433 mm bin
    Weight percent of sample with grain diameter between 3.50 and 3.75 phi, or 0.07433 and 0.08839 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.006203
    Maximum:3.2202
    Units:percentage
    Wt. percent in 4.00 phi bin or 0.0625 mm bin
    Weight percent of sample with grain diameter between 3.75 and 4.00 phi, or 0.0625 and 0.07433 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.001701
    Maximum:3.474471
    Units:percentage
    Wt. percent in 4.25 phi bin or 0.052556 mm bin
    Weight percent of sample with grain diameter between 4.00 and 4.25 phi, or 0.052556 and 0.0625 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.000057
    Maximum:3.216458
    Units:percentage
    Wt. percent in 4.50 phi bin or 0.044194 mm bin
    Weight percent of sample with grain diameter between 4.25 and 4.50 phi, or 0.044194 and 0.052556 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.004584
    Maximum:2.804689
    Units:percentage
    Wt. percent in 4.75 phi bin or 0.037163 mm bin
    Weight percent of sample with grain diameter between 4.50 and 4.75 phi, or 0.037163 and 0.044194 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.072008
    Maximum:2.627076
    Units:percentage
    Wt. percent in 5.00 phi bin or 0.03125 mm bin
    Weight percent of sample with grain diameter between 4.75 and 5.00 phi, or 0.03125 and 0.037163 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.392577
    Maximum:2.738618
    Units:percentage
    Wt. percent in 5.25 phi bin or 0.02628 mm bin
    Weight percent of sample with grain diameter between 5.00 and 5.25 phi, or 0.02628 and 0.03125 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.684316
    Maximum:2.940923
    Units:percentage
    Wt. percent in 5.50 phi bin or 0.0221 mm bin
    Weight percent of sample with grain diameter between 5.25 and 5.50 phi, or 0.0221 and 0.02628 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.615343
    Maximum:2.997222
    Units:percentage
    Wt. percent in 5.75 phi bin or 0.01858 mm bin
    Weight percent of sample with grain diameter between 5.50 and 5.75 phi, or 0.01858 and 0.0221 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.488103
    Maximum:3.109819
    Units:percentage
    Wt. percent in 6.00 phi bin or 0.01563 mm bin
    Weight percent of sample with grain diameter between 5.75 and 6.00 phi, or 0.01563 and 0.01858 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.77073
    Maximum:3.296656
    Units:percentage
    Wt. percent in 6.25 phi bin or 0.01314 mm bin
    Weight percent of sample with grain diameter between 6.00 and 6.25 phi, or 0.01314 and 0.01563 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.085287
    Maximum:3.552695
    Units:percentage
    Wt. percent in 6.50 phi bin or 0.01105 mm bin
    Weight percent of sample with grain diameter between 6.25 and 6.50 phi, or 0.01105 and 0.01314 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.192974
    Maximum:3.710488
    Units:percentage
    Wt. percent in 6.75 phi bin or 0.00929 mm bin
    Weight percent of sample with grain diameter between 6.50 and 6.75 phi, or 0.00929 and 0.01105 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.282724
    Maximum:4.319309
    Units:percentage
    Wt. percent in 7.00 phi bin or 0.00781 mm bin
    Weight percent of sample with grain diameter between 6.75 and 7.00 phi, or 0.00781 and 0.00929 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.360283
    Maximum:4.957305
    Units:percentage
    Wt. percent in 7.25 phi bin or 0.00657 mm bin
    Weight percent of sample with grain diameter between 7.00 and 7.25 phi, or 0.00657 and 0.00781 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.422077
    Maximum:5.456734
    Units:percentage
    Wt. percent in 7.50 phi bin or 0.00552 mm bin
    Weight percent of sample with grain diameter between 7.25 and 7.50 phi, or 0.00552 and 0.00657 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.480297
    Maximum:5.891504
    Units:percentage
    Wt. percent in 7.75 phi bin or 0.00465 mm bin
    Weight percent of sample with grain diameter between 7.50 and 7.75 phi, or 0.00465 and 0.00552 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.478193
    Maximum:6.390622
    Units:percentage
    Wt. percent in 8.00 phi bin or 0.00391 mm bin
    Weight percent of sample with grain diameter between 7.75 and 8.00 phi, or 0.00391 and 0.00465 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.48828
    Maximum:6.987291
    Units:percentage
    Wt. percent in 8.25 phi bin or 0.00329 mm bin
    Weight percent of sample with grain diameter between 8.00 and 8.25 phi, or 0.00329 and 0.00391 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.460256
    Maximum:7.295165
    Units:percentage
    Wt. percent in 8.50 phi bin or 0.00276 mm bin
    Weight percent of sample with grain diameter between 8.25 and 8.50 phi, or 0.00276 and 0.00329 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.362522
    Maximum:7.145816
    Units:percentage
    Wt. percent in 8.75 phi bin or 0.00232 mm bin
    Weight percent of sample with grain diameter between 8.50 and 8.75 phi, or 0.00232 and 0.00276 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.282657
    Maximum:6.977
    Units:percentage
    Wt. percent in 9.00 phi bin or 0.00195 mm bin
    Weight percent of sample with grain diameter between 8.75 and 9.00 phi, or 0.00195 and 0.00232 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.187661
    Maximum:6.619125
    Units:percentage
    Wt. percent in 9.25 phi bin or 0.00164 mm bin
    Weight percent of sample with grain diameter between 9.00 and 9.25 phi, or 0.00164 and 0.00195 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.085449
    Maximum:6.12144
    Units:percentage
    Wt. percent in 9.50 phi bin or 0.00138 mm bin
    Weight percent of sample with grain diameter between 9.25 and 9.50 phi, or 0.00138 and 0.00164 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.983305
    Maximum:5.624483
    Units:percentage
    Wt. percent in 9.75 phi bin or 0.00116 mm bin
    Weight percent of sample with grain diameter between 9.50 and 9.75 phi, or 0.00116 and 0.00138 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.885571
    Maximum:5.186419
    Units:percentage
    Wt. percent in 10.00 phi bin or 0.00098 mm bin
    Weight percent of sample with grain diameter between 9.75 and 10.00 phi, or 0.00098 and 0.00116 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.749293
    Maximum:4.485067
    Units:percentage
    Wt. percent in 10.25 phi bin or 0.00082 mm bin
    Weight percent of sample with grain diameter between 10.00 and 10.25 phi, or 0.00082 and 0.00098 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.66843
    Maximum:4.105371
    Units:percentage
    Wt. percent in 10.50 phi bin or 0.00069 mm bin
    Weight percent of sample with grain diameter between 10.25 and 10.50 phi, or 0.00069 and 0.00082 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.51729
    Maximum:3.300341
    Units:percentage
    Wt. percent in 10.75 phi bin or 0.00058 mm bin
    Weight percent of sample with grain diameter between 10.50 and 10.75 phi, or 0.00058 and 0.00069 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.394741
    Maximum:2.609572
    Units:percentage
    Wt. percent in 11.00 phi bin or 0.00049 mm bin
    Weight percent of sample with grain diameter between 10.75 and 11.00 phi, or 0.00049 and 0.00058 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.259722
    Maximum:1.794081
    Units:percentage
    Wt. percent in 11.25 phi bin or 0.0004 mm bin
    Weight percent of sample with grain diameter between 11.00 and 11.25 phi, or 0.0004 and 0.00049 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.143628
    Maximum:1.007372
    Units:percentage
    Wt. percent in 11.50 phi bin or 0.00035 mm bin
    Weight percent of sample with grain diameter between 11.25 and 11.50 phi, or 0.00035 and 0.0004 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.034471
    Maximum:0.230256
    Units:percentage
    Wt. percent in 12.00 phi bin or 0.000241 mm bin
    Weight percent of sample with grain diameter between 11.50 and 12.00 phi, or 0.000241 and 0.00035 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Wt. percent in 13.00 phi bin or 0.00012 mm bin
    Weight percent of sample with grain diameter between 12.00 and 13.00 phi, or 0.00012 and 0.000241 mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.0
    Units:percentage
    Percent Gravel
    Percent of sample greater than 2 mm, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.0
    Maximum:4.545455
    Units:Percentage
    Percent Sand
    Percent of sample less than 2 mm and greater than 63 microns, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.30744
    Maximum:69.884846
    Units:Percentage
    Percent Silt
    Percent of sample less than 63 microns and greater than 4 microns, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:17.90924
    Maximum:51.961847
    Units:Percentage
    Percent Clay
    Percent of sample less than 4 microns, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:11.014996
    Maximum:60.906669
    Units:Percentage
    Percent Mud
    Percent of sample less than 63 microns, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:28.924237
    Maximum:99.69256
    Units:Percentage
    Gravel/Sand
    Ratio of gravel to sand in sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.877
    Sand/Silt
    Ratio of sand to silt in sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.007
    Maximum:3.902
    Silt/Clay
    Ratio of silt to clay in sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.602
    Maximum:2.125
    Sand/Clay
    Ratio of sand to clay in sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.005
    Maximum:6.345
    Sand/Mud
    Ratio of sand to mud in sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.003
    Maximum:2.416
    Gravel/Mud
    Ratio of gravel to mud in sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.0
    Maximum:0.068
    D5 Phi
    Phi size at D5 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:-0.854
    Maximum:6.129
    Units:Phi size
    D10 Phi
    Phi size at D10 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:0.349
    Maximum:6.659
    Units:Phi size
    D16 Phi
    Phi size at D16 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:1.25
    Maximum:7.045
    Units:Phi size
    D25 Phi
    Phi size at D25 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:2.027
    Maximum:7.468
    Units:Phi size
    D50 Phi
    Phi size at D50 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:2.731
    Maximum:8.403
    Units:Phi size
    D75 Phi
    Phi size at D75 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:5.155
    Maximum:9.391
    Units:Phi size
    D84 Phi
    Phi size at D84 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:7.157
    Maximum:9.828
    Units:Phi size
    D90 Phi
    Phi size at D90 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:8.175
    Maximum:10.185
    Units:Phi size
    D95 Phi
    Phi size at D95 for sample, "NA" indicates that no value was calculated. (Source: Producer defined)
    Range of values
    Minimum:9.168
    Maximum:10.561
    Units:Phi size
    F-W Median
    Phi size median for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:2.730844
    Maximum:8.402674
    Units:Phi size
    F-W Mean
    Phi size mean for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:3.964917
    Maximum:8.402467
    Units:Phi size
    F-W Sorting
    sorting for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.338964
    Maximum:3.551668
    Units:Phi size
    F-W Skewness
    skewness for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:-0.409878
    Maximum:0.688871
    Units:Phi size
    F-W Kurtosis
    Kurtosis for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.606378
    Maximum:1.466842
    Units:Phi size
    Inman Median
    Phi size median for sample by Inman (1952) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:2.730844
    Maximum:8.402674
    Units:Phi size
    Inman Mean
    Phi size mean for sample by Inman (1952) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:4.571671
    Maximum:8.402364
    Units:Phi size
    Inman Sorting
    sorting for sample by Inman (1952) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.354357
    Maximum:3.798146
    Units:Phi size
    Inman Skew 16-84
    skewness for sample (D16-D84) by Inman (1952) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:-0.411067
    Maximum:0.71895
    Units:Phi size
    Inman Skew 05-95
    skewness for sample (D5-D95) by Inman (1952) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:-1.01662
    Maximum:0.992869
    Units:Phi size
    Inman Kurtosis
    Kurtosis for sample by Inman (1952) method, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.257457
    Maximum:1.400431
    Units:Phi size
    Trask Median
    mm size median for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.002955
    Maximum:0.150638
    Units:millimeters
    Trask Mean
    mm size mean for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.003603
    Maximum:0.126247
    Units:millimeters
    Trask Sorting
    sorting for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.903379
    Maximum:7.71429
    Units:millimeters
    Trask Skewness
    skewness for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.0974
    Maximum:6.106756
    Units:millimeters
    Trask Kurtosis
    kurtosis for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.041505
    Maximum:0.349438
    Units:millimeters
    Mean Phi
    phi size mean for sample, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:3.802937
    Maximum:8.342253
    Units:Phi size
    Mean mm
    mm size mean for sample, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:0.003081
    Maximum:0.071648
    Units:millimeters
    Variance
    variance for sample, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.908209
    Maximum:12.186134
    Units:Phi size
    Std. Dev.
    standard deviation for sample, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.381379
    Maximum:3.490864
    Units:Phi size
    Skewness
    skewness for sample, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:-2.100584
    Maximum:1.028435
    Units:Phi size
    Kurtosis
    kurtosis for sample, "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:1.506972
    Maximum:8.852885
    Units:Phi size
    Mode in Phi
    Mode or modes of sample in phi units. If sample was multi-modal, multiple mode values reported, separated by semicolon. "NA" indicates that no value was calculated. (Source: producer defined)
    Range of values
    Minimum:-2.375
    Maximum:8.377
    Units:Phi size
    Bag Weight
    The weight of the empty sample bag. (Source: producer defined)
    Range of values
    Minimum:3.24
    Maximum:3.88
    Units:grams
    Bag and Wet Sediment Weight
    The weight of the initial wet sample, as it was collected in the sample bag. (Source: producer defined)
    Range of values
    Minimum:17.99
    Maximum:46.16
    Units:grams
    Dry Sediment Weight
    The weight of the dried sediment in the sample. (Source: producer defined)
    Range of values
    Minimum:6.92
    Maximum:31.31
    Units:grams
    Bulk Density
    The bulk density of the sample, calculated as the mass of the dry sediment divided by the volume of the initial sample. (Source: producer defined)
    Range of values
    Minimum:1.394684
    Maximum:1.846002
    Units:grams per cubic centimeter

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Jessica R Lacy
    • Evan T Dailey
    • Emily M Carlson
  2. Who also contributed to the data set?
    Data collection was funded by U.S. Geological Survey and U.S. Bureau of Reclamation
  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
    United States

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

Why was the data set created?

These data will be used to inform studies of sediment resuspension and transport in Liberty Island and Little Holland Tract and to evaluate the potential for flooded agricultural tracts to contribute to elevated turbidity in adjacent waters.

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: Aug-2014 (process 1 of 5)
    Sediment samples were collected on August 25 and 26, 2014 using a push core sampler. Sampling positions were recorded using a hand-held global navigation satellite system (GNSS) receiver.
    Date: Sep-2014 (process 2 of 5)
    The grain-size distributions of samples were determined in the USGS Pacific Coastal and Marine Science Center sediment lab. Approximately 20 g of sediment was sub-sampled and 10 mL of 35 percent hydrogen peroxide was added to remove organic material in the sample. The sample was heated at 250 degrees C to remove any remaining hydrogen peroxide and was placed in an ultrasonic bath to liberate the fine fraction. Subsequently, the sample was centrifuged for 1.5 hours to remove soluble salts. Samples were funneled through a 2 mm and a 63 um sieve to separate the gravel (greater than 2 mm), sand (63 um to 2 mm), and mud (less than 63 um). The sand and gravel fractions were dried in an 80 degree C oven and weighed. Five mL of sodium hexametaphosphate was added to the mud fraction and a 20 mL aliquot was taken from a 1 L graduated cylinder to determine the weight of the mud. The particle-size distribution of the mud and sand fractions was analyzed separately using a Beckman Coulter LS 13 320, and the gravel, sand, and mud results were integrated into a single grain-size distribution for each sample. Where used, phi sizes are equal to the negative log base 2 of millimeter size.
    Date: Sep-2014 (process 3 of 5)
    Bulk density was calculated by weighing the sample bag, the wet sample in the bag, and the dry sample in the bag. Measurements were made in the USGS Pacific Coastal and Marine Science Center sediment lab. The bulk density reported here was calculated as: water density (1 g/cm3) times sediment density (2.65 g/cm3) divided by water density plus the product of sediment density minus sediment density and water content of the sample.
    Date: 17-Jul-2018 (process 4 of 5)
    Corrected name of theme keyword thesaurus from ISO 19115 Topic Categories to Category. Updated contact information to bring up to USGS PCMSC standards. 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: 05-Sep-2018 (process 5 of 5)
    Corrected Point of Contact and Metadata Contact phone number prefix. No data were changed. 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
  3. What similar or related data should the user be aware of?
    Lacy, Jessica R, and Carlson, Emily M, 2016, Wind-wave and suspended-sediment data from Liberty Island and Little Holland Tract, Sacramento-San Joaquin Delta, California: data release doi:10.5066/F73R0R07, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    Snyder, Alex G, Stevens, Andrew W, Carlson, Emily M, and Lacy, Jessica R, 2016, Digital elevation model of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015: data release doi:10.5066/F7RX9954, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    Folk, Robert Louis, and Ward, William C., 1957, Brazos River bar; a study in the significance of grain size parameters: Journal article Journal of Sedimentary Research, v. 27, n. 1, p. 3-26, SEPM Society for Sedimentary Geology, Boulder, CO.

    Online Links:

    Inman, Douglas Lamar, 1952, Measures for describing the size distribution of sediments: Journal article Journal of Sedimentary Research, v. 22, n. 3, p. 125-145, SEPM Society for Sedimentary Geology, Boulder, CO.

    Online Links:

    Trask, Parker D., 1930, Mechanical analyses of sediments by centrifuge: Journal article Economic Geology, v. 26, n. 6, p. 581-599, Society of Economic Geologists (SEG), Littleton, CO.

    Online Links:


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

  1. How well have the observations been checked?
    Data values are within the expected values.
  2. How accurate are the geographic locations?
    Horizontal accuracy derived from GPS instrumentation is less than 1 m.
  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?
    Data values are within the expected values.

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 (USGS) as the originator 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
    U.S. Geological Survey
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO
    United States

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? These data are available in csv format (GrainSizeBD_LHT-LI_2014Cores.csv) along with CSDGM FGDC-compliant metadata.
  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?
  5. What hardware or software do I need in order to use the data set?
    The data is available in comma-separated values (CSV) spreadsheet format. Text editing software can be used to open the file, as well as spreadsheet programs, such as Microsoft Excel.

Who wrote the metadata?

Dates:
Last modified: 05-Sep-2018
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA
United States

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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