Water content analyses 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:
Water content analyses 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, Water content analyses of 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, 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: -74.742167
    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/6436e61ed34ee8d4addcb35d?name=HRS1209_WaterContent.jpg&allowOpen=true (JPEG)
    Browse image of the collection locations of cores analyzed for water content.
  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?
    Geospatial_Data_Presentation_Form: spreadsheet
  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 (206)
    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_WaterContent.csv
    Comma Separated Value (CSV) file containing water content data for piston cores collected from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon. (Source: Producer Defined)
    Sample_ID
    Sample ID. Naming convention: 12007-XX-P-WC-ZZ (12007= Field ID abbreviation) (XX=Core ID number) (P=piston core) (WC=indicates water content sample) (ZZ=Sample number) (Source: Producer Defined) character string
    Cruise_ID
    Cruise identification code assigned by vessel (Source: Producer Defined)
    ValueDefinition
    HRS1209Hugh R. Sharp cruise HRS1209, also known by USGS field activity number 2012-007-FA.
    Contact
    Contact for samples (Source: Producer Defined)
    ValueDefinition
    JCHAYTORJason D. Chaytor
    Area
    General area where samples were taken (Source: Producer Defined)
    ValueDefinition
    Currituck LandslideSurvey location occupied during Sharp cruise 1209
    Core_ID
    Core identification number assigned in field. Naming convention: HRS1209-XXPC (HRS1209 = cruise ID) (XX= core ID number) (PC=piston core) (Source: Producer Defined) character string
    Latitude_DD
    Latitude of core that grain-size data came from (Source: Producer Defined)
    Range of values
    Minimum:36.14594
    Maximum:36.43533
    Units:decimal degrees
    Longitude_DD
    Longitude of core that grain-size analysis came from (Source: Producer Defined)
    Range of values
    Minimum:-74.742167
    Maximum:-74.52812
    Units:decimal degrees
    Water_Depth_m
    Water depth at location where core was collected (Source: Producer Defined)
    Range of values
    Minimum:525
    Maximum:1923
    Units:meters below sea level
    T_Depth_cm
    Depth of the top of the interval that was sampled for analysis as measured from the top of the core (Source: Producer Defined)
    Range of values
    Minimum:10
    Maximum:700
    Units:centimeters
    B_Depth_cm
    Depth of the top of the interval that was sampled for analysis as measured from the top of the core (Source: Producer Defined)
    Range of values
    Minimum:11
    Maximum:701
    Units:centimeters
    Date_Collected_MM/DD/YYYY
    Date that core was collected in the field (Month/Day/Year) (Source: Producer Defined) character string
    Device
    Device used to collect core (Source: Producer Defined)
    ValueDefinition
    PISTON CORERPiston Corer
    Date_Analyzed_MM/DD/YYYY
    Date that analysis was marked as complete (Month/Day/Year) (Source: Producer Defined)
    ValueDefinition
    NaNNo date was recorded.
    character string
    Vessel_Weight_g
    Weight of aluminum dish or glass beaker used to hold sample (Source: Producer Defined)
    Range of values
    Minimum:38.8463
    Maximum:192.4043
    Units:grams
    Gross_Wet_Weight_g
    Combined weight of vessel and wet sediment sample (Source: Producer Defined)
    Range of values
    Minimum:43.0985
    Maximum:195.8771
    Units:grams
    Sample_Wet_Weight_g
    Initial weight of the sample before drying process; weight difference between gross wet weight and vessel weight. (Source: Producer Defined)
    Range of values
    Minimum:1.9793
    Maximum:8.5916
    Units:grams
    Gross_Dry_Weight_g
    Combined vessel and sample weight after 24 hours of oven drying at 100 degrees Celsius (Source: Producer Defined)
    Range of values
    Minimum:41.0304
    Maximum:194.0198
    Units:grams
    Sample_Dry_Weight_g
    Weight of the dry sample; weight difference between gross dry weight and vessel weight. (Source: Producer Defined)
    Range of values
    Minimum:1.2225
    Maximum:5.4855
    Units:grams
    Sample_Water_Loss_g
    Mass of water lost during drying process; weight difference between wet sample weight and dry sample weight. (Source: Producer Defined)
    Range of values
    Minimum:0.7568
    Maximum:4.4925
    Units:grams
    Percent_Water_Loss
    Percent water loss as weight of water loss as a percentage of sample wet weight (Source: Producer Defined)
    Range of values
    Minimum:17.1631
    Maximum:62.4058
    Units:weight percent

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. Water content analyses were used to determine the density and porosity of samples collected from the cores.

How was the data set created?

  1. From what previous works were the data drawn?
    Blum, 1997 (source 1 of 1)
    Blum, Peter, 1997, Physical properties handbook: a guide to the shipboard measurements of physical properties of the deep-sea cores: ODP Tech., Online.

    Online Links:

    Other_Citation_Details: Note, 26
    Type_of_Source_Media: Digital and/or Hardcopy
    Source_Contribution: Description of methods used in moisture and density analysis.
  2. How were the data generated, processed, and modified?
    Date: 2016 (process 1 of 3)
    Each core was cut into sections on the ship after collection. The cores were then split into halves back on shore. 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: 2012 (process 2 of 3)
    Water content samples were collected at 30-50 cm intervals from undisturbed sediment cores using a spatula, then placed into a pre-weighed aluminum tray or glass beaker. Sample was then dried at 100 degrees C after at least 24 hours, then reweighed. The resulting weight differential between the initial (wet) sample weights and final (dry) sample weights were used to calculate water content. In total, 206 water content analyses were performed. Person who carried out this activity:
    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)
    aboggess@usgs.gov
    Data sources used in this process:
    • Blum, 1997
    Date: 2021 (process 3 of 3)
    Water content data were compiled from yearly data spreadsheets into a CSV spreadsheet. Person who carried out this activity:
    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)
    aboggess@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?
    Attributes were double checked that they related the correct interval data to sample ID.
  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, 14 cores were analyzed for this water content dataset. Cores chosen for analysis were thought to represent the full range of sediments expected to be encountered. Omitted cores were not included because the coring locations were near previously analyzed cores.
  5. How consistent are the relationships among the observations, including topology?
    Results of water content and density analyses are generally consistent with 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 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_WaterContent.csv), the browse graphic HRS1209_BrowseGraphic.png), and the FGDC CSDGM metadata in XML format (HRS1209_WaterContent.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_WaterContent_Metadata.faq.html>
Generated by mp version 2.9.51 on Tue Jun 6 16:23:17 2023