Sediment grain-size distributions from cores collected in the Salmon River estuary, Oregon

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What does this data set describe?

Title:
Sediment grain-size distributions from cores collected in the Salmon River estuary, Oregon
Abstract:
This portion of the data release presents sediment grain-size data from cores and surface samples collected from the Salmon River estuary in 2017 and 2018. In total, 60 samples were collected from 18 sites containing sandy sediment from the circa 1700 CE tsunami deposit, two sites with post-1700 CE silt, and eight modern surface sample sites. The grain-size distributions of samples were determined using standard techniques developed by the USGS Pacific Coastal and Marine Science Center sediment lab. The grain-size data are provided in a comma-separated values (.csv) text file.
Supplemental_Information:
Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-643-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-625-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  1. How might this data set be cited?
    SeanPaul M. La Selle, Nelson, Alan R., Witter, Robert C., Gelfenbaum, Guy, Padgett, Jason S., and Jaffe, Bruce E., 20240417, Sediment grain-size distributions from cores collected in the Salmon River estuary, Oregon: data release DOI:10.5066/P9M86S7D, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    SeanPaul M. La Selle, Nelson, Alan R., Witter, Robert C., Padgett, Jason S., Jaffe, Bruce E., and Gelfenbaum, Guy, 2024, Tsunami deposit data and sediment transport models from the Salmon River estuary, central Oregon: data release DOI:10.5066/P9M86S7D, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    Other_Citation_Details:
    Suggested Citation: La Selle, S.M., Nelson, A.R., Witter, R.C., Padgett, J.S., Jaffe, B.E., Gelfenbaum, G., 2024, Tsunami deposit data and sediment transport models from the Salmon River, central Oregon coast: U.S. Geological Survey data release, https://doi.org/10.5066/P9M86S7D.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -123.99576
    East_Bounding_Coordinate: -123.97254
    North_Bounding_Coordinate: 45.03949
    South_Bounding_Coordinate: 45.02468
  3. What does it look like?
    grainsize_preview.png (PNG)
    Grainsize distributions of tsunami sediments from the Salmon River estuary, OR.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 16-Jul-2017
    Ending_Date: 21-Jan-2021
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: comma-delimited text
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (62)
    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 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal Degrees. The horizontal datum used is WGS_1984.
      The ellipsoid used is WGS_1984.
      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?
    salmonriver_grainsize.csv
    Comma Separated Value (.csv) file containing grainsize data. (Source: producer defined)
    field_activity_number
    Field Activity Number (Source: producer defined) Unique identifier for the U.S. Geological Survey field activity
    sample_id
    Name of sample in LocalityYear-CoreID-Depth format, where LocalityYear is a two-letter abbreviation of the field locality (for example SR = Salmon River) followed by the 2-digit year (17 for 2017, 18 for 2018), CoreID is the unique name given to a core (for example gc21 is gouge core 21, S6 is surface sample 6), and Depth is the depth interval in centimeters in the core from which the sample was collected (no depths assigned for surface samples). Samples that were split and analyzed twice are identified by the "duplicate" appended to the Sample I.D. (Source: producer defined) Unique identifier for the sample used given in the field
    lab_id
    Name of sample identifier in YY-FFFFF-XX format, where YY is the 2-digit year (for example 18=2018), FFFFF is the 5-digit field-activity-number (FAN) ID code, and XX is a sequential number given to the sample in the lab. (Source: producer defined) Unique identifier for the sample given during analysis in the lab
    date_collected
    Date of grainsize sample collection in the field in yyyy-mm-dd format. Not to be confused with the date the grain size analyses were performed. (Source: producer defined)
    Range of values
    Minimum:2017-07-16
    Maximum:2018-05-15
    Units:Dates in yyyy-mm-dd format
    latitude
    Latitude of site where sample was collected, in decimal degrees. (Source: producer defined)
    Range of values
    Minimum:45.02468
    Maximum:45.03949
    longitude
    Longitude of site where sample was collected, in decimal degrees. (Source: producer defined)
    Range of values
    Minimum:-123.99576
    Maximum:-123.97254
    sample_type
    Type of sample collected, either subsampled from a core (gouge core) or collected from the sediment-air or sediment-water interface (surface sample) (Source: producer defined)
    ValueDefinition
    gouge coreThe associated sample was subsampled from the barrel of a hand driven gouge core in the field and placed in a plastic sample bag.
    surface sampleThe associated sample was subsampled from the modern sediment surface and placed in a plastic sample bag.
    wt_percent_in_-4.00phi_or_16mm_bin
    Weight percent of sample with grain diameter greater than -4.00 phi, or 16 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-3.75phi_or_13.5mm_bin
    Weight percent of sample with grain diameter between -4.00 and -3.75 phi, or 13.5 and 16 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-3.50phi_or_11.2mm_bin
    Weight percent of sample with grain diameter between -3.75 and -3.50 phi, or 11.2 and 13.5 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-3.25phi_or_9.51mm_bin
    Weight percent of sample with grain diameter between -3.50 and -3.25 phi, or 9.51 and 11.2 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-3.00phi_or_8mm_bin
    Weight percent of sample with grain diameter between -3.25 and -3.00 phi, or 8 and 9.51 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-2.75phi_or_6.73mm_bin
    Weight percent of sample with grain diameter between -3.00 and -2.75 phi, or 6.73 and 8 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-2.50phi_or_5.66mm_bin
    Weight percent of sample with grain diameter between -2.75 and -2.50 phi, or 5.66 and 6.73 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-2.25phi_or_4.76mm_bin
    Weight percent of sample with grain diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-2.25phi_or_4.76mm_bin
    Weight percent of sample with grain diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-2.00phi_or_4mm_bin
    Weight percent of sample with grain diameter between -2.25 and -2.00 phi, or 4 and 4.76 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-1.75phi_or_3.36mm_bin
    Weight percent of sample with grain diameter between -2.00 and -1.75 phi, or 3.36 and 4 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_-1.50phi_or_2.83mm_bin
    Weight percent of sample with grain diameter between -1.75 and -1.50 phi, or 2.83 and 3.36 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.477653
    Units:percentage
    wt_percent_in_-1.25phi_or_2.38mm_bin
    Weight percent of sample with grain diameter between -1.50 and -1.25 phi, or 2.38 and 2.83 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.910611
    Units:percentage
    wt_percent_in_-1.00phi_or_2mm_bin
    Weight percent of sample with grain diameter between -1.25 and -1.00 phi, or 2 and 2.38 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.545385
    Units:percentage
    wt_percent_in_-0.75phi_or_1.68mm_bin
    Weight percent of sample with grain diameter between -1.00 and -0.75 phi, or 1.68 and 2 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:2.275945
    Units:percentage
    wt_percent_in_-0.50phi_or_1.41mm_bin
    Weight percent of sample with grain diameter between -0.75 and -0.50 phi, or 1.41 and 1.68 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.948346
    Units:percentage
    wt_percent_in_-0.25phi_or_1.19mm_bin
    Weight percent of sample with grain diameter between -0.50 and -0.25 phi, or 1.19 and 1.41 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.662562
    Units:percentage
    wt_percent_in_0.00phi_or_1mm_bin
    Weight percent of sample with grain diameter between -0.25 and 0.00 phi, or 1 and 1.19 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:2.093384
    Units:percentage
    wt_percent_in_0.25phi_or_0.8409mm_bin
    Weight percent of sample with grain diameter between 0.00 and 0.25 phi, or 0.8409 and 1 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.025767
    Units:percentage
    wt_percent_in_0.50phi_or_0.7071mm_bin
    Weight percent of sample with grain diameter between 0.25 and 0.50 phi, or 0.7071 and 0.8409 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.073636
    Units:percentage
    wt_percent_in_0.75phi_or_0.5946mm_bin
    Weight percent of sample with grain diameter between 0.50 and 0.75 phi, or 0.5946 and 0.7071 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:1.128344
    Units:percentage
    wt_percent_in_1.00phi_or_0.5mm_bin
    Weight percent of sample with grain diameter between 0.75 and 1.00 phi, or 0.5 and 0.5946 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:2.146149
    Units:percentage
    wt_percent_in_1.25phi_or_0.4204mm_bin
    Weight percent of sample with grain diameter between 1.00 and 1.25 phi, or 0.4204 and 0.5 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:7.985448
    Units:percentage
    wt_percent_in_1.50phi_or_0.3536mm_bin
    Weight percent of sample with grain diameter between 1.25 and 1.50 phi, or 0.3536 and 0.4204 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:15.990517
    Units:percentage
    wt_percent_in_1.75phi_or_0.2973mm_bin
    Weight percent of sample with grain diameter between 1.50 and 1.75 phi, or 0.2973 and 0.3536 mm. (Source: producer defined)
    Range of values
    Minimum:0.020765
    Maximum:21.680394
    Units:percentage
    wt_percent_in_2.00phi_or_0.25mm_bin
    Weight percent of sample with grain diameter between 1.75 and 2.00 phi, or 0.25 and 0.2973 mm. (Source: producer defined)
    Range of values
    Minimum:0.313298
    Maximum:22.825075
    Units:percentage
    wt_percent_in_2.25phi_or_0.2102mm_bin
    Weight percent of sample with grain diameter between 2.00 and 2.25 phi, or 0.2102 and 0.25 mm. (Source: producer defined)
    Range of values
    Minimum:0.874947
    Maximum:19.204381
    Units:percentage
    wt_percent_in_2.50phi_or_0.1768mm_bin
    Weight percent of sample with grain diameter between 2.25 and 2.50 phi, or 0.1768 and 0.2102 mm. (Source: producer defined)
    Range of values
    Minimum:0.651095
    Maximum:13.189904
    Units:percentage
    wt_percent_in_2.75phi_or_0.1487mm_bin
    Weight percent of sample with grain diameter between 2.50 and 2.75 phi, or 0.1487 and 0.1768 mm. (Source: producer defined)
    Range of values
    Minimum:0.868730
    Maximum:9.120922
    Units:percentage
    wt_percent_in_3.00phi_or_0.125mm_bin
    Weight percent of sample with grain diameter between 2.75 and 3.00 phi, or 0.125 and 0.1487 mm. (Source: producer defined)
    Range of values
    Minimum:0.915193
    Maximum:9.378049
    Units:percentage
    wt_percent_in_3.25phi_or_0.1051mm_bin
    Weight percent of sample with grain diameter between 3.00 and 3.25 phi, or 0.1051 and 0.125 mm. (Source: producer defined)
    Range of values
    Minimum:0.433612
    Maximum:8.526347
    Units:percentage
    wt_percent_in_3.50phi_or_0.08839mm_bin
    Weight percent of sample with grain diameter between 3.25 and 3.50 phi, or 0.08839 and 0.1051 mm. (Source: producer defined)
    Range of values
    Minimum:0.107045
    Maximum:7.557921
    Units:percentage
    wt_percent_in_3.75phi_or_0.07433mm_bin
    Weight percent of sample with grain diameter between 3.50 and 3.75 phi, or 0.07433 and 0.08839 mm. (Source: producer defined)
    Range of values
    Minimum:0.018260
    Maximum:6.583649
    Units:percentage
    wt_percent_in_4.00phi_or_0.0625mm_bin
    Weight percent of sample with grain diameter between 3.75 and 4.00 phi, or 0.0625 and 0.07433 mm. (Source: producer defined)
    Range of values
    Minimum:0.027576
    Maximum:4.980211
    Units:percentage
    wt_percent_in_4.25phi_or_0.052556mm_bin
    Weight percent of sample with grain diameter between 4.00 and 4.25 phi, or 0.052556 and 0.0625 mm. (Source: producer defined)
    Range of values
    Minimum:0.000070
    Maximum:3.611365
    Units:percentage
    wt_percent_in_4.50phi_or_0.044194mm_bin
    Weight percent of sample with grain diameter between 4.25 and 4.50 phi, or 0.044194 and 0.052556 mm. (Source: producer defined)
    Range of values
    Minimum:0.000080
    Maximum:3.065846
    Units:percentage
    wt_percent_in_4.75phi_or_0.037163mm_bin
    Weight percent of sample with grain diameter between 4.50 and 4.75 phi, or 0.037163 and 0.044194 mm. (Source: producer defined)
    Range of values
    Minimum:0.000094
    Maximum:3.225377
    Units:percentage
    wt_percent_in_5.00phi_or_0.03125mm_bin
    Weight percent of sample with grain diameter between 4.75 and 5.00 phi, or 0.03125 and 0.037163 mm. (Source: producer defined)
    Range of values
    Minimum:0.000112
    Maximum:4.065601
    Units:percentage
    wt_percent_in_5.25phi_or_0.02628mm_bin
    Weight percent of sample with grain diameter between 5.00 and 5.25 phi, or 0.02628 and 0.03125 mm. (Source: producer defined)
    Range of values
    Minimum:0.000121
    Maximum:4.408918
    Units:percentage
    wt_percent_in_5.50phi_or_0.0221mm_bin
    Weight percent of sample with grain diameter between 5.25 and 5.50 phi, or 0.0221 and 0.02628 mm. (Source: producer defined)
    Range of values
    Minimum:0.000121
    Maximum:4.291468
    Units:percentage
    wt_percent_in_5.75phi_or_0.01858mm_bin
    Weight percent of sample with grain diameter between 5.50 and 5.75 phi, or 0.01858 and 0.0221 mm. (Source: producer defined)
    Range of values
    Minimum:0.000124
    Maximum:4.146913
    Units:percentage
    wt_percent_in_6.00phi_or_0.01563mm_bin
    Weight percent of sample with grain diameter between 5.75 and 6.00 phi, or 0.01563 and 0.01858 mm. (Source: producer defined)
    Range of values
    Minimum:0.000140
    Maximum:4.210156
    Units:percentage
    wt_percent_in_6.25phi_or_0.01314mm_bin
    Weight percent of sample with grain diameter between 6.00 and 6.25 phi, or 0.01314 and 0.01563 mm. (Source: producer defined)
    Range of values
    Minimum:0.000173
    Maximum:4.481196
    Units:percentage
    wt_percent_in_6.50phi_or_0.01105mm_bin
    Weight percent of sample with grain diameter between 6.25 and 6.50 phi, or 0.01105 and 0.01314 mm. (Source: producer defined)
    Range of values
    Minimum:0.000201
    Maximum:4.607681
    Units:percentage
    wt_percent_in_6.75phi_or_0.00929mm_bin
    Weight percent of sample with grain diameter between 6.50 and 6.75 phi, or 0.00929 and 0.01105 mm. (Source: producer defined)
    Range of values
    Minimum:0.000218
    Maximum:4.580577
    Units:percentage
    wt_percent_in_7.00phi_or_0.00781mm_bin
    Weight percent of sample with grain diameter between 6.75 and 7.00 phi, or 0.00781 and 0.00929 mm. (Source: producer defined)
    Range of values
    Minimum:0.000226
    Maximum:4.454092
    Units:percentage
    wt_percent_in_7.25phi_or_0.00657mm_bin
    Weight percent of sample with grain diameter between 7.00 and 7.25 phi, or 0.00657 and 0.00781 mm. (Source: producer defined)
    Range of values
    Minimum:0.000232
    Maximum:4.264364
    Units:percentage
    wt_percent_in_7.50phi_or_0.00552mm_bin
    Weight percent of sample with grain diameter between 7.25 and 7.50 phi, or 0.00552 and 0.00657 mm. (Source: producer defined)
    Range of values
    Minimum:0.000237
    Maximum:4.092705
    Units:percentage
    wt_percent_in_7.75phi_or_0.00465mm_bin
    Weight percent of sample with grain diameter between 7.50 and 7.75 phi, or 0.00465 and 0.00552 mm. (Source: producer defined)
    Range of values
    Minimum:0.000233
    Maximum:3.812630
    Units:percentage
    wt_percent_in_8.00phi_or_0.00391mm_bin
    Weight percent of sample with grain diameter between 7.75 and 8.00 phi, or 0.00391 and 0.00465 mm. (Source: producer defined)
    Range of values
    Minimum:0.000230
    Maximum:3.613867
    Units:percentage
    wt_percent_in_8.25phi_or_0.00329mm_bin
    Weight percent of sample with grain diameter between 8.00 and 8.25 phi, or 0.00329 and 0.00391 mm. (Source: producer defined)
    Range of values
    Minimum:0.000223
    Maximum:3.388001
    Units:percentage
    wt_percent_in_8.50phi_or_0.00276mm_bin
    Weight percent of sample with grain diameter between 8.25 and 8.50 phi, or 0.00276 and 0.00329 mm. (Source: producer defined)
    Range of values
    Minimum:0.000207
    Maximum:3.062753
    Units:percentage
    wt_percent_in_8.75phi_or_0.00232mm_bin
    Weight percent of sample with grain diameter between 8.50 and 8.75 phi, or 0.00232 and 0.00276 mm. (Source: producer defined)
    Range of values
    Minimum:0.000199
    Maximum:2.818817
    Units:percentage
    wt_percent_in_9.00phi_or_0.00195mm_bin
    Weight percent of sample with grain diameter between 8.75 and 9.00 phi, or 0.00195 and 0.00232 mm. (Source: producer defined)
    Range of values
    Minimum:0.000193
    Maximum:2.592950
    Units:percentage
    wt_percent_in_9.25phi_or_0.00164mm_bin
    Weight percent of sample with grain diameter between 9.00 and 9.25 phi, or 0.00164 and 0.00195 mm. (Source: producer defined)
    Range of values
    Minimum:0.000192
    Maximum:2.385152
    Units:percentage
    wt_percent_in_9.50phi_or_0.00138mm_bin
    Weight percent of sample with grain diameter between 9.25 and 9.50 phi, or 0.00138 and 0.00164 mm. (Source: producer defined)
    Range of values
    Minimum:0.000194
    Maximum:2.195424
    Units:percentage
    wt_percent_in_9.75phi_or_0.00116mm_bin
    Weight percent of sample with grain diameter between 9.50 and 9.75 phi, or 0.00116 and 0.00138 mm. (Source: producer defined)
    Range of values
    Minimum:0.000201
    Maximum:2.050870
    Units:percentage
    wt_percent_in_9.99phi_or_0.00098mm_bin
    Weight percent of sample with grain diameter between 9.75 and 9.99 phi, or 0.00098 and 0.00116 mm. (Source: producer defined)
    Range of values
    Minimum:0.000196
    Maximum:1.815968
    Units:percentage
    wt_percent_in_10.25phi_or_0.00082mm_bin
    Weight percent of sample with grain diameter between 9.99 and 10.25 phi, or 0.00082 and 0.00098 mm. (Source: producer defined)
    Range of values
    Minimum:0.000199
    Maximum:1.707552
    Units:percentage
    wt_percent_in_10.50phi_or_0.00069mm_bin
    Weight percent of sample with grain diameter between 10.25 and 10.50 phi, or 0.00069 and 0.00082 mm. (Source: producer defined)
    Range of values
    Minimum:0.000174
    Maximum:1.400374
    Units:percentage
    wt_percent_in_10.75phi_or_0.00058mm_bin
    Weight percent of sample with grain diameter between 10.50 and 10.75 phi, or 0.00058 and 0.00069 mm. (Source: producer defined)
    Range of values
    Minimum:0.000145
    Maximum:1.120299
    Units:percentage
    wt_percent_in_10.99phi_or_0.00049mm_bin
    Weight percent of sample with grain diameter between 10.75 and 10.99 phi, or 0.00049 and 0.00058 mm. (Source: producer defined)
    Range of values
    Minimum:0.000103
    Maximum:0.767947
    Units:percentage
    wt_percent_in_11.25phi_or_0.0004mm_bin
    Weight percent of sample with grain diameter between 10.99 and 11.25 phi, or 0.0004 and 0.00049 mm. (Source: producer defined)
    Range of values
    Minimum:0.000060
    Maximum:0.433664
    Units:percentage
    wt_percent_in_11.48phi_or_0.00035mm_bin
    Weight percent of sample with grain diameter between 11.25 and 11.48 phi, or 0.00035 and 0.0004 mm. (Source: producer defined)
    Range of values
    Minimum:0.000014
    Maximum:0.099381
    Units:percentage
    wt_percent_in_12.02phi_or_0.000241mm_bin
    Weight percent of sample with grain diameter between 11.48 and 12.02 phi, or 0.000241 and 0.00035 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    wt_percent_in_13.02phi_or_0.00012mm_bin
    Weight percent of sample with grain diameter between 12.02 and 13.02 phi, or 0.00012 and 0.000241 mm. (Source: producer defined)
    Range of values
    Minimum:0.000000
    Maximum:0.000000
    Units:percentage
    Entity_and_Attribute_Overview: The first line of the csv file is a header line.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • SeanPaul M. La Selle
    • Alan R. Nelson
    • Robert C. Witter
    • Guy Gelfenbaum
    • Jason S. Padgett
    • Bruce E. Jaffe
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    PCMSC Science Data Coordinator
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission Street
    Santa Cruz, CA

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

Why was the data set created?

Data were obtained to characterize sediment grainsize distributions. These data are intended for science researchers, students, policy makers, and the general public.

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: 15-May-2018 (process 1 of 2)
    Cores and surface samples were collected in July, 2017 and May, 2018. A handheld Global Satellite Navigation System (GNSS) receiver was used to determine the locations of sediment samples. Subsurface sediments were subsampled from cores by hand in the field.
    Date: 21-Jan-2021 (process 2 of 2)
    Grain-size analysis was conducted by the USGS Pacific Coastal and Marine Science Center (PCMSC) sediment lab using a Beckman Coulter LS 13 320 particle size analyzer with an aqueous liquid module attachment. PCMSC procedures are modified from those described in Carver (1971) and Folk (1974, 1980). 5-50 grams of sediment was sub-sampled and at least 10 milliliters of 30 percent hydrogen peroxide were added to oxidize for at least 12 hours to remove organics. The samples were then heated to 250 degrees Celsius to drive off excess hydrogen peroxide. Next, samples were placed in an ultrasonic bath to help disperse silt and clay (mud) from sand and larger-sized particles. Samples were then rinsed twice in deionized water with centrifugation to remove soluble ions. Subsequently, the samples were wet sieved with 1 millimeter and 0.063 millimeter sieves to segregate the combined gravel and coarse sand fraction (greater than 1 millimeter), sand (1 millimeter to 0.063 millimeter), and mud (less than 0.063 millimeter). The coarse sand + gravel fractions were then dried, dry sieved at 1/4phi intervals and weighed (Carver, 1971). The sand fraction was dried and weighed. The mud fraction was collected in a 1 liter graduated cylinder, 5 milliliters of at least 10 percent sodium hexametaphosphate (dispersant) were added, and deionized water was added to bring the total the volume to 1 liter. The mud + dispersant solution sat for at least 12 hours to ensure complete dispersion and to observe if flocculation occurred. Subsequently, a 20 milliliter aliquot was extracted from the graduated cylinder and dried to obtain the mud fraction weight normalized to a 1-liter basis. The mud and sand fractions were analyzed separately via the Beckman Coulter LS 13 320 with the aqueous liquid module attachment. All size fraction data were compiled and converted by the PCMSC sediment lab pcSDSZ program (Penscil, 2015) to a grain-size distribution at 1/4phi size intervals on a weight percent basis. Person who carried out this activity:
    Angela Tan
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Physical Scientist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7409 (voice)
    atan@usgs.gov
  3. What similar or related data should the user be aware of?
    SeanPaul M. La Selle, Nelson, Alan R., Witter, Robert C., Gelfenbaum, Guy, Padgett, Jason S., and Jaffe, Bruce E., 2024, Testing megathrust rupture models using tsunami deposits.

    Online Links:

    Other_Citation_Details:
    La Selle, S.M., Nelson, A.R., Witter, R.C., Gelfenbaum, G., Padgett, J.S., and Jaffe, B.E., 2024, Testing megathrust rupture models using tsunami deposits: Journal of Geophysical Research: Earth Surface, https://doi.org/10.1029/2023JF007444.
    Beckman-Coulter, 2011, Instructions for Use: LS 13 320 Laser Diffraction Particle Size Analyzer.

    Online Links:

    Other_Citation_Details:
    Beckman-Coulter, 2011, Instructions for Use: LS 13 320 Laser Diffraction Particle Size Analyzer: Brea, Calif., Beckman-Coulter, 246 p.
    Carver, Robert E., 1971, Procedures in Sedimentary Petrology.

    Online Links:

    Other_Citation_Details:
    Carver, R.E., 1971, Procedures in Sedimentary Petrology: Wiley Interscience, New York: 49-94.
    Folk, Robert Louis, 1974, Petrology of Sedimentary Rocks.

    Online Links:

    Other_Citation_Details:
    Folk, R.L., 1974, Petrology of Sedimentary Rocks: Hemphill Publishing Co., Austin, TX, 182 p.
    Folk, Robert Louis, 1980, Petrology of Sedimentary Rocks.

    Online Links:

    Other_Citation_Details:
    Folk, R.L., 1980, Petrology of Sedimentary Rocks: Hemphill Publishing Co., Austin, TX, 184 p.
    Penscil, Inc., 2015, pcSDSZ Sediment Size Analysis Software for Windows: Operation Manual Version 2.00.

    Other_Citation_Details:
    Penscil Inc., 2015, pcSDSZ Sediment Size Analysis Software for Windows: Operation Manual Version 2.00: Los Osos, Calif., 131 p.

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

  1. How well have the observations been checked?
    For grain-size analyses, annual service tests and daily calibrations with reference standards ensured that the Beckman Coulter LS 13 320 operated within specifications. Each sample was analyzed three times by the instrument and the data were averaged. In addition, a lab procedural duplicate was run with each batch of samples to ensure consistency and values were within 15 percent.
  2. How accurate are the geographic locations?
    The locations of samples were determined using a Garmin etrex 30x handheld Global Satellite Navigation System (GNSS) receiver capable of receiving wide area augmentation system (WAAS) signals. The manufacturer reported accuracy for horizontal positions is 3-5 m while receiving WAAS signals.
  3. How accurate are the heights or depths?
    No formal positional accuracy tests were conducted, nor were they applicable for this dataset.
  4. Where are the gaps in the data? What is missing?
    Dataset 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. Please see 'Distribution Info' for details.
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 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 - CMGDS
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov
  2. What's the catalog number I need to order this data set? Sediment grainsize data are available in comma-delimited text file format (salmonriver_grainsize.csv), accompanied by 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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: comma separated value (.csv) file in format comma-delimited text Size: 0.0346
      Network links: https://doi.org/10.5066/P9M86S7D
    • Cost to order the data: None

Who wrote the metadata?

Dates:
Last modified: 17-Apr-2024
Metadata author:
PCMSC Science Data Coordinator
U.S. Geological Survey, Pacific Coastal and Marine Science Center
2885 Mission Street
Santa Cruz, CA

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/CMGDS_DR_tool/DR_P9M86S7D/salmonriver_grainsize_metadata.faq.html>
Generated by mp version 2.9.51 on Fri Apr 19 15:41:14 2024