Vibracore photographs, computed tomography scans, and core-log descriptions from Pololu Valley, Island of Hawaii

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:

What does this data set describe?

Title:
Vibracore photographs, computed tomography scans, and core-log descriptions from Pololu Valley, Island of Hawaii
Abstract:
This portion of the data release contains information on vibracores that were collected by the U.S. Geological Survey in Pololu Valley, Island of Hawai'i in 2014. Five sites were cored in order to describe wetland stratigraphy and to identify potential tsunami deposits. These vibracores contain mud, peat, fluvial sands, and marine volcanic sands, reflecting deposition in a variety of coastal environments. Two (2) pdf files (VC1.pdf, VC2.pdf) describe vibracores that were split, imaged by a line-scanner camera, scanned to generate computed tomagraphic (CT) images, and visually described. A detailed description of the upper 150 cm of VC1 using the Troels-Smith sediment classification scheme (Troels-Smith, 1955; Nelson, 2015) is included in VC1.pdf. Another pdf file (Pololu_cores_legend.pdf) contains a core-log legend. Cores VC3, VC4, and VC5 were collected using shorter sections (less than 200 cm) of extra pipe in order to capture the sand layer from the 1946 Aleutian tsunami that inundated the valley (Chague-Goff et al., 2012) and have not been photographed or CT-scanned. A comma-delimited text file (Pololu_sand_thickness.csv) includes tabulated information on the depth and thickness of sand beds P1, P2, and P3. In addition, a shapefile (pololu_vibracores_2014_locations.shp) provides sample locations of vibracores.
Supplemental_Information:
Information about the data collection field activities can be found at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-640-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, Richmond, Bruce M., Griswold, Frances R., Lunghino, Brent D., Jaffe, Bruce E., Kane, Haunani H., Bellanova, Piero, Arcos, Maria E.M., Nelson, Alan R., Chague, Catherine, Bishop, James M., and Gelfenbaum, Guy R., 2019, Vibracore photographs, computed tomography scans, and core-log descriptions from Pololu Valley, Island of Hawaii: data release DOI:10.5066/P9X4STJM, 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, Richmond, Bruce M., Griswold, Frances R., Lunghino, Brent D., Jaffe, Bruce E., Kane, Haunani H., Bellanova, Piero, Arcos, Maria E.M., Nelson, Alan R., Chague, Catherine, Bishop, James M., and Gelfenbaum, Guy R., 2019, Core logs, scans, photographs, grain-size, and radiocarbon data from coastal wetlands on the Hawaiian islands of Kaua'i, O'ahu, and Hawai'i: data release DOI:10.5066/P9X4STJM, 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: -155.73314
    East_Bounding_Coordinate: -155.73273
    North_Bounding_Coordinate: 20.20010
    South_Bounding_Coordinate: 20.20229
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 21-Aug-2014
    Ending_Date: 21-Aug-2014
    Currentness_Reference:
    ground condition at the time the samples were collected
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Portable Document Format (PDF), comma-delimited text, shapefile
  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 Pololu Valley, on the Island of Hawai'i
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (5)
    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 D_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?
    Pololu_cores_legend.pdf
    pdf file of symbols and abbreviations used in the Pololu core log descriptions (Source: Producer defined)
    Symbols and abbreviations used in Pololu core logs
    legend for core logs (Source: Producer defined) legend of symbols and abbreviations used in the core log descriptions
    pdf files of Pololu core log descriptions
    Description of header information in each core log pdf file. (Source: Producer defined)
    FAN
    USGS Coastal and Marine Geology Field Activity Number (Source: Producer defined)
    ValueDefinition
    2015-671-FAUSGS CMG Field Activity Number 2014-640-FA. Detailed information about the field activity may be found at https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-640-FA
    Core ID
    Core identifier (Source: Producer defined) Unique identifier for the core given in the field
    Date
    Date of sample collection in mm/dd/yyyy format (Source: Producer defined)
    Range of values
    Minimum:08/21/2014
    Maximum:08/21/2014
    Units:Dates in mm/dd/yyyy format
    Latitude
    Latitude of core in decimal degrees (Source: Producer defined)
    Range of values
    Minimum:20.20010
    Maximum:20.20229
    Units:decimal degrees
    Longitude
    Longitude of sample in decimal degrees (Source: Producer defined)
    Range of values
    Minimum:-155.73314
    Maximum:-155.73273
    Units:decimal degrees
    Length (cm)
    Length of core in centimeters (Source: Producer defined)
    Range of values
    Minimum:73
    Maximum:406
    Units:centimeters
    Compaction (cm)
    Vertical sediment compaction measured in centimeters (Source: Producer defined)
    Range of values
    Minimum:12.5
    Maximum:81
    Units:centimeters
    Pololu_sand_thickness.csv
    Comma-delimited text file with depths and thicknesses of sand layers observed in cores in Pololu Valley, Hawaii, HI. (Source: Producer defined)
    Site_id
    Name of site in LocalityYear-CoreID format, where LocalityYear is the first three letters of the field locality (POL = Pololu) followed by the 2-digit year (14=2014), and CoreID is the unique name given to a core. Cores beginning with PO are gouge cores from Chague-Goff and others (2012). (Source: producer defined) Unique identifier for the site given in the field
    Latitude
    Latitude of sample in decimal degrees, north (Source: producer defined)
    Range of values
    Minimum:20.20010
    Maximum:20.20240
    Units:decimal degrees
    Longitude
    Longitude of sample in decimal degrees, east (Source: producer defined)
    Range of values
    Minimum:-155.73359
    Maximum:-155.73273
    Units:decimal degrees
    Sample_type
    Type of coring device used to collect sediment and determine sand bed thicknesses. (Source: producer defined)
    ValueDefinition
    gouge coreSide-filling hand operated peat-coring auger. Either 3 cm or 6 cm-diameter and 100 cm-long.
    vibracoreMechanical coring device that uses high frequency vibrations (up to 180 Hz) to drive 7.6 cm-diameter aluminum pipe into the sediment.
    SandP1_min_Depth_cm
    The minimum depth in centimeters of Sand P1 in the core (measured from the ground surface). NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:15
    Maximum:27
    Units:centimeters
    SandP1_max_Depth_cm
    The maximum depth in centimeters of Sand P1 in the core (measured from the ground surface). NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:15.3
    Maximum:29
    Units:centimeters
    SandP1_thickness_cm
    The thickness of Sand P1 in the core. NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:0.3
    Maximum:2
    Units:centimeters
    SandP2_min_Depth_cm
    The minimum depth in centimeters of Sand P2 in the core (measured from the ground surface). NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:18
    Maximum:54
    Units:centimeters
    SandP2_max_Depth_cm
    The maximum depth in centimeters of Sand P2 in the core (measured from the ground surface). NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:42
    Maximum:64
    Units:centimeters
    SandP2_thickness_cm
    The thickness of Sand P2 in the core. NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:2.5
    Maximum:30
    Units:centimeters
    SandP3_min_Depth_cm
    The minimum depth in centimeters of Sand P3 in the core (measured from the ground surface). NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:121
    Maximum:121
    Units:centimeters
    SandP3_max_Depth_cm
    The maximum depth in centimeters of Sand P3 in the core (measured from the ground surface). NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:124
    Maximum:124
    Units:centimeters
    SandP3_thickness_cm
    The thickness of Sand P3 in the core. NaN=sand bed was not observed in core (Source: Producer defined)
    Range of values
    Minimum:3
    Maximum:3
    Units:centimeters
    pololu_vibracores_2014_locations.shp
    point shapefile of Pololu vibracore sample locations (Source: Producer defined)
    Core_ID
    Unique identifier for the core given in the field (Source: Producer defined) Unique identifier for the core given in the field
    Latitude
    Latitude of core in decimal degrees (Source: Producer defined)
    Range of values
    Minimum:20.20010
    Maximum:20.20229
    Units:decimal degrees
    Longitude
    Longitude of sample in decimal degrees (Source: Producer defined)
    Range of values
    Minimum:-155.73314
    Maximum:-155.73273
    Units:decimal degrees

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
    • Bruce M. Richmond
    • Frances R. Griswold
    • Brent D. Lunghino
    • Bruce E. Jaffe
    • Haunani H. Kane
    • Piero Bellanova
    • Maria E.M. Arcos
    • Alan R. Nelson
    • Catherine Chague
    • James M. Bishop
    • Guy R. Gelfenbaum
  2. Who also contributed to the data set?
    Data collection was funded by U.S. Geological Survey
  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

    831-460-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

This dataset was collected in order to identify evidence of tsunami inundation in Pololu Valley.

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: 2014 (process 1 of 4)
    Vibracores were collected on August 21, 2014. A handheld global satellite navigation system (GNSS) receiver was used to determine the locations of vibracores
    Date: 06-Feb-2015 (process 2 of 4)
    Cores were CT-scanned by the Oregon State University (OSU) Marine and Geology Repository (MGR) using the OSU College of Veterinary Medicine’s Toshiba Aquilon 64 Slice medical CT scanner. Person who carried out this activity:
    Maziet Cheseby
    OSU MGR
    Curator
    104 CEOAS Admin Building
    Corvallis, OR

    541-737-2808 (voice)
    corelab@coas.oregonstate.edu
    Date: 19-Apr-2016 (process 3 of 4)
    Cores were photographed by a color line-scan camera at the Scripps Institute of Oceanography. Person who carried out this activity:
    Alexandra Hangsterfer
    Scripps Institution of Oceanography
    Geological Collections Manager
    2310 Downwind Way
    La Jolla, CA

    858-822-4837 (voice)
    ahangsterfer@ucsd.edu
    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?
    Troels-Smith, J., 1955, Karakterisering af lo se jordarter: Book Danmarks Geologiske Underso gelse Series IV. 3(10), 73 pp., Geological Survey of Denmark, Copenhagen, Denmark.

    Nelson, A., 2015, Chapter 4: Coastal Sediments: Book Handbook of Sea-level Research, Wiley-Blackwell, West Sussex, UK.

    Online Links:

    Chague-Goff, C., Goff, J., Nichol, S.L., Dudley, W., Zawadzki, A., Bennett, J.W., Mooney, S.D., Fierro, D., Jeijnis, H., Dominey-Howes, D., and Courtney, C., 2012, Multi-proxy evidence for trans-Pacific tsunamis in the Hawai'ian Islands: Journal article Marine Geology 299-302 pg. 77-89, Marine Geology, Amsterdam, Netherlands.

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?
    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.
  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
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? PDF files of core log descriptions and a legend, as well as a csv file of sediment thickness, and a shapefile containing core locations are downloadable in a single zip file that includes 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 zip file contains data available in Environmental Systems Research Institute (Esri) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from Esri at www.esri.com. Other data are available in Portable Document Format (PDF) files. Adobe Acrobat and similar programs can be used to view files.

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
United States

831-460-4747 (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_P9X4STJM/Vibracores_Pololu_Hawaii_meta.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:17:34 2021