Bulk organic matter and carbonate content 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:
Bulk organic matter and carbonate content 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, Bulk organic matter and carbonate content 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: -73.6337
    North_Bounding_Coordinate: 38.0064
    South_Bounding_Coordinate: 36.23034
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/6436e578d34ee8d4addcb34d?name=HRS1209_CarbonateContent.jpg&allowOpen=true (JPEG)
    Browse image of the collection locations of cores analyzed for bulk organic matter and carbonate 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 (149)
    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_CarbonContent.csv
    Comma Separated Value (CSV) file containing carbonate 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-YY-ZZ (12007= Field ID abbreviation: 2012-007-FA) (XX=Core ID number) (P=piston core or T=trigger core) (YY=Indicates sample collection purpose; CC=Bulk organics/carbonate LOI, ID=Identification) (ZZ=Sample number or letter) (Source: Producer Defined) character string
    Cruise_ID
    Cruise identification code, specific to research 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 LandslideCurrituck Landslide Complex
    Core_ID
    Core identification number assigned in field. Naming convention: HRS1209-XXPC (HRS1209 = cruise ID) (XX= core ID number) (PC=piston core, TC=trigger core) (Source: Producer Defined) character string
    Latitude_DD
    Latitude of the core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:36.230340
    Maximum:38.006400
    Units:decimal degrees
    Longitude_DD
    Longitude of the core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:-74.742167
    Maximum:-73.633700
    Units:decimal degrees
    Water_Depth_m
    Water depth at the location where the core was collected (Source: Producer Defined)
    Range of values
    Minimum:532
    Maximum:1872
    Units:meters
    Resolution:1
    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:652
    Units:centimeters
    B_Depth_cm
    Depth of the bottom 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:653
    Units:centimeters
    Device
    Device used to collect core (Source: Producer Defined)
    ValueDefinition
    PISTON CORERPiston corer
    TRIGGER CORERTrigger corer
    Date_Collected_MM/DD/YYYY
    Date that core was collected. Format: MM/DD/YYYY (MM=Month) (DD=Day) (YYYY=Year) (Source: Producer Defined) character string
    Date_Analyzed_MM/DD/YYYY
    Date that CC-LOI analysis was completed. Format: MM/DD/YYYY (MM=Month) (DD=Day) (YYYY=Year) (Source: Producer Defined) character string
    Crucible_Wt_g
    Weight of crucible in which sample was heated for CC-LOI (Source: Producer Defined)
    Range of values
    Minimum:5.9523
    Maximum:7.8647
    Units:grams
    Resolution:0.0001
    Gross_Initial_Wt_g
    Combined weight of crucible and powdered sample, prior to heating (Source: Producer Defined)
    Range of values
    Minimum:8.1603
    Maximum:13.1680
    Units:grams
    Resolution:0.0001
    Sample_Initial_Wt_g
    Initial weight of sample, calculated from gross initial weight minus crucible weight (Source: Producer Defined)
    Range of values
    Minimum:1.4296
    Maximum:6.3000
    Units:grams
    Resolution:0.0001
    Gross_Sample_Wt_550C_g
    Combined weight of crucible and sample after heating to 550 degrees Celsius for 3 hours (Source: Producer Defined)
    Range of values
    Minimum:7.8566
    Maximum:13.1100
    Units:grams
    Resolution:0.0001
    Sample_Wt_550C_g
    Sample weight after heating to 550 degrees C for 3 hours, calculated from Gross_Sample_Wt_550C_g minus Crucible_Wt_g (Source: Producer Defined)
    Range of values
    Minimum:1.3178
    Maximum:6.2180
    Units:grams
    Resolution:0.0001
    Sample_WtLoss_550C_g
    Weight differential between initial sample weight and sample weight after heating at 550 degrees Celsius for 3 hours (Source: Producer Defined)
    Range of values
    Minimum:0.0214
    Maximum:0.3914
    Units:grams
    Resolution:0.001
    Bulk_Organic_Matter_WtPct
    Weight percent of organic matter and carbon lost while heating sample to 550 degrees C for 3 hours; calculated as the percent of sample weight lost divided by initial sample weight. (Source: Producer Defined)
    Range of values
    Minimum:0.6760
    Maximum:13.7545
    Units:weight percent
    Resolution:0.0001
    Gross_Wt_950C_g
    Combined weight of crucible and sample after heating to 950 degrees Celsius for 2 hours (Source: Producer Defined)
    Range of values
    Minimum:7.7673
    Maximum:12.7360
    Units:grams
    Resolution:0.0001
    Sample_Wt_950C_g
    Sample weight after heating to 950 degrees Celsius for 2 hours, calculated from Gross_Wt_950C_g minus original crucible weight (Source: Producer Defined)
    Range of values
    Minimum:1.2876
    Maximum:5.9190
    Units:grams
    Resolution:0.0001
    Sample_WtLoss_950C_g
    Weight differential between sample weight after 3 hours heated to 550 degrees Celsius and final sample weight after heating at 950 degrees Celsius for 2 hours (Source: Producer Defined)
    Range of values
    Minimum:0.0302
    Maximum:0.7585
    Units:grams
    Resolution:0.0001
    CO2_WtPct
    Weight percent of carbon dioxide released from carbonate minerals while heating sample to 950 degrees Celsius for 2 hours; percent of weight differential between sample after 550 degree heating and sample after 950 degree heating, divided by initial sample weight (Source: Producer Defined)
    Range of values
    Minimum:0.3280
    Maximum:6.8600
    Units:weight percent
    Resolution:0.0001
    CaCO3_WtPct
    Weight percent of calcium carbonate in sample; calculated from weight percent carbon dioxide multiplied by molecular conversion from CO2 to CaCO3 (2.27) (Source: Producer Defined)
    Range of values
    Minimum:2.8824
    Maximum:39.0210
    Units:weight percent
    Resolution:0.0001
    Entity_and_Attribute_Overview:
    These attribute definitions describe each column of information in the HRS1209_CarobonContent.csv file
    Entity_and_Attribute_Detail_Citation: USGS Field Activity 2012-007-FA

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. Bulk organic matter and carbonate content analyses were used to determine the percentage of organically-derived material present in samples collected from the cores.

How was the data set created?

  1. From what previous works were the data drawn?
    Dean (1974) (source 1 of 1)
    Dean, Walter E., 1974, Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition; comparison with other methods: Journal of Sedimentary Research Vol. 44, SEPM Journal of Sedimentary Research, Tulsa, OK.

    Online Links:

    Type_of_Source_Media: Digital and/or Hardcopy
    Source_Contribution:
    A modified version of the methods described in the paper were used to produce this dataset.
  2. How were the data generated, processed, and modified?
    Date: 2019 (process 1 of 3)
    Carbon content loss-on-ignition (CC-LOI) samples data with Sample_ID containing "CC") were taken from cores in 1 cm-thick subsamples and placed into pre-weighed aluminum dishes. Samples were weighed after drying in oven at 100 degrees Celsius for at least 24 hours. The dry sample was powdered using a mortar and pestle. 2-4 grams of dry powder were transferred to a pre-weighed ceramic crucible.
    Date: 2020 (process 2 of 3)
    Filled crucibles were heated in a muffle furnace for CC-LOI in two stages, using a modified method outlined by Dean (1974). Crucibles were heated to 550 degrees Celsius for 3 hours, cooled, and weighed. Weight differential after the first heating step is assigned to loss of organic matter. Samples were then heated at 950 degrees Celsius for 2 hours. The second weight differential is equated to loss of carbon dioxide from CaCO3 in the sediment. Person who carried out this activity:
    Allyson A. Boggess
    U.S. Geological Survey, NORTHEAST REGION
    384 Woods Hole Road
    Woods Hole, MA
    US

    508-548-8700 x2341 (voice)
    508-457-2310 (FAX)
    aboggess@usgs.gov
    Date: 2021 (process 3 of 3)
    Samples' weight differentials were recorded on spreadsheets in batches as analyses were performed. The complete HRS1209 CC-LOI dataset was later compiled into a CSV (comma-separated value) text file for end-user accessibility. Data sources used in this process:
    • Dean (1974)
  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?
    Efficiency of Loss on Ignition is greater than 99% and routinely checked via ignition of a bivalve shell (96-97% CaCO3) standard.
  2. How accurate are the geographic locations?
    Horizontal location accuracy is less than 1 meter.
  3. How accurate are the heights or depths?
    Water depth accuracy is within 1 meter.
  4. Where are the gaps in the data? What is missing?
    Of the 24 piston and associated trigger cores collected during the Hugh R. Sharp HRS1209 cruise, 11 cores were analyzed for this loss-on-ignition 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?
    Data fall within generally expected ranges.

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 files (HRS1209_CarbonContent.csv), the browse graphic (HRS1209_BrowseGraphic.jpg) and the FGDC CSDGM metadata in XML format (HRS1209_CarbonContent_Metadata.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_CarbonateContent_Metadata.faq.html>
Generated by mp version 2.9.51 on Tue Jun 6 16:23:16 2023