X-radiographs of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA

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Frequently anticipated questions:

What does this data set describe?

Title:
X-radiographs of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA
Abstract:
Twenty-four piston cores (and associated trigger cores) were collected from the source zone of the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon by the U.S. Geological Survey and the University of Rhode Island Department of Ocean Engineering during an eight-day cruise aboard the R/V Hugh R. Sharp in September/October of 2012. These cores were analyzed for evidence of seafloor mass transport processes, with an emphasis on constraining the age and shallow stratigraphy of the landslide complex. Sedimentological and geotechnical characterization of the cores was carried out through whole core imaging and description, followed by analysis of discrete samples at the USGS Woods Hole Coastal and Marine Science Center's Sediment Analysis Laboratory and other facilities, including grain-size, CaCO3 content, mineral composition, and bulk index properties (e.g., undrained shear strength and water content), micropaleontologic separations, and geochronology. This data release contains the results of these core descriptions and results of the laboratory analyses.
Supplemental_Information:
Cores were collected on the Hugh R. Sharp cruise HRS1209 from September 28, 2012 to October 4, 2012, and currently reside in the Woods Hole Coastal and Marine Science Center's core repository. Information about USGS Field Activity 2012-007-FA is available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-007-FA.
  1. How might this data set be cited?
    Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 20230605, X-radiographs of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA: digital data DOI:10.5066/P9H74BAX, U.S. Geological Survey, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 2023, Sedimentological and geotechnical analyses of marine sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA: data release DOI:10.5066/P9H74BAX, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details:
    Suggested citation: Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 2023, Sedimentological and geotechnical analyses of marine sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9H74BAX.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -74.75686
    East_Bounding_Coordinate: -74.52812
    North_Bounding_Coordinate: 36.43533
    South_Bounding_Coordinate: 36.14594
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/6436e630d34ee8d4addcb35f?name=HRS1209_Xradiograph2.jpg&allowOpen=true (JPEG)
    Browse image of the collection locations of cores that were X-rayed.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 28-Sep-2012
    Ending_Date: 04-Oct-2012
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0197464427. Longitudes are given to the nearest 0.0258271413. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is WGS_1984.
      The ellipsoid used is WGS_84.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: Local surface
      Depth_Resolution: 0.1
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Attribute values
  7. How does the data set describe geographic features?
    HRS1209_Xradiograph.zip
    ZIP file containing JPG images of piston cores collected from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon in folders organized by core. (Source: Producer Defined)

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • A.A. Boggess
    • B.J. Buczkowski
    • J.D. Chaytor
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Jason D. Chaytor
    U.S. Geological Survey, Northeast Region
    Research Geologist
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 x2351 (voice)
    jchaytor@usgs.gov

Why was the data set created?

The data provides a comprehensive understanding of the nature and properties of the sediments found in this geographic location. Radiographs highlight sedimentary structures, especially bioturbation, mass transport deposit morphology, and the fine tails of turbidites.

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: 2016 (process 1 of 2)
    Each core was cut into sections on the ship after collection. Person who carried out this activity:
    Jason D. Chaytor
    U.S. Geological Survey, Northeast Region
    Research Geologist
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 x2351 (voice)
    jchaytor@usgs.gov
    Date: 2014 (process 2 of 2)
    Once back onshore, digital x-radiographs of each core section were acquired at the Cape Cod Veterinary Specialists in Buzzards Bay, Mass. X-radiograph images were saved as JPG files and were organized in folders by core. Each photo should overlap on each side with the preceding and succeeding interval by a few centimeters. The files were named for the core (for example, HRS1209-5PC) then the section (1, 2, or 3) and then the frame interval (1, 2, 3, 4, or 5). The section numbers increase from bottom of the core to top of the core, while the interval numbers increase from top of the section to bottom of the section. Folders for cores HRS1209-6PC, HRS1209-7PC, HRS1209-12PC, HRS1209-14PC also contain cropped JPG image files, JPG image files stitched together, and PSD files used to create the stitched images. Person who carried out this activity:
    Jason D. Chaytor
    U.S. Geological Survey, NORTHEAST REGION
    Research Geologist
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 x2351 (voice)
    jchaytor@usgs.gov
  3. What similar or related data should the user be aware of?

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

  1. How well have the observations been checked?
    Attribute values input into the x-radiograph were double checked to ensure that they related the correct interval data to the information available for each core imaged.
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Of the 24 cores collected during the Hugh R. Sharp HRS1209 cruise, 10 cores were imaged using radiography.
  5. How consistent are the relationships among the observations, including topology?
    X-ray images are generally consistent with expected results.

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 Not to be used for navigation. The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO
    United States

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? The dataset includes the data file (HRS1209_Xradiograph.zip), the browse graphic HRS1209_BrowseGraphic.png), and the FGDC CSDGM metadata in XML format (HRS1209_Xradiograph.xml).
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 05-Jun-2023
Metadata author:
Allyson A. Boggess
U.S. Geological Survey, NORTHEAST REGION
Geologist
384 Woods Hole Road
Woods Hole, MA
US

508-548-8700 x2341 (voice)
508-457-2310 (FAX)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS.
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9H74BAX/HRS1209_Xradiograph_Metadata.faq.html>
Generated by mp version 2.9.51 on Tue Jun 6 16:23:17 2023