Bulk organics and carbonate content of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA

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What does this data set describe?

Title:
Bulk organics and carbonate content of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA
Abstract:
Variability in sediment properties with depth and the thickness of individual sedimentary layers are critical determinants of seabed acoustic response. The New England Mud Patch (NEMP), located south of Cape Cod, is an unusual feature on the U.S. Continental Shelf in that it is composed of fine-grained sediment layers containing a relatively-homogeneous mix of sand, silt, and clay-sized particles bounded by more typical sandy shelf sediments. The unique characteristics and nature of this deposit is due to a derivation of sediments that have been transported to, and deposited in, a basal bowl-shaped depression since the last glacial maximum. Ninety-two piston, vibra-, and gravity cores with a maximum length of 8.2 meters were collected from across the New England Mud Patch during a 2-leg, 10-day cruise aboard the R/V Endeavor in the spring of 2016. Geologic characterization and analysis of a subset of the cores including grain size, CaCO3, mineral composition, and bulk index properties (undrained shear strength, water content, density, and porosity) of discrete samples was carried out at the USGS Woods Hole Coastal and Marine Science Center's (WHCMSC) Sediment Analysis Laboratory. This data release contains the results of these analyses, along with visual core descriptions and summary sheets for each core analyzed for this study.
Supplemental_Information:
Cores were collected on the 2016 R/V Endeavor cruise EN577 from April 19, 2016 to May 2, 2016. Information about this expedition, also known as USGS Field Activity 2016-001-FA, is available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-001-FA
  1. How might this data set be cited?
    Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 20210819, Bulk organics and carbonate content of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA: data release DOI:10.5066/P9ZYK3PX, 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., 2021, Sedimentological and geotechnical analyses of marine sediment cores from the New England Mud Patch: U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details:
    Suggested citation: Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 2021, Sedimentological and geotechnical analyses of marine sediment cores from the New England Mud Patch: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZYK3PX.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -70.7979
    East_Bounding_Coordinate: -70.4370
    North_Bounding_Coordinate: 40.5952
    South_Bounding_Coordinate: 40.3058
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/60551c7fd34e1894882d0a6b/?name=MudPatchCores_BrowseGraphic.png (PNG)
    Browse image of the core collection locations and spatial extent of the study area
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 19-Apr-2016
    Ending_Date: 02-May-2016
    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?
    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?
    EN577_CarbonContent_PistonCores.csv
    Bulk organics and carbonate content data for NEMP piston cores. Point dataset, 904 data records. (Source: Producer Defined)
    Sample_ID
    Sample ID. Naming convention: FFFFF-CC-P-ZZZ-# (FFFFF= Field ID abbreviation) (CC=Core ID) (P=Piston Core) (ZZ=Sample Type, indicating the original purpose for sample being taken [CC=Carbon Content LOI] [DEN=Dry Bulk Density] [WC=Water Content]) (# = Sample Number) (Source: Producer Defined) character string
    Cruise_ID
    Cruise identification code, specific to research vessel (Source: Producer Defined)
    ValueDefinition
    EN577R/V Endeavor cruise EN577, also known by WHCMSC field activity number 2016-001-FA
    Contact
    Contact for samples (Source: Producer Defined)
    ValueDefinition
    JCHAYTORJason D. Chaytor
    Area
    General area where samples were taken (Source: Producer Defined)
    ValueDefinition
    Mud PatchSouthern New England Mud Patch
    Core_ID
    Core identification number assigned in field. Naming convention EN577-XXPC (EN577=Cruise ID) (XX=Core number) (PC=Piston Core) (Source: Producer Defined) character string
    Latitude_DD
    Latitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:39.852573
    Maximum:40.516666
    Units:decimal degrees
    Longitude_DD
    Longitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:-70.979775
    Maximum:-70.482964
    Units:decimal degrees
    Water_Depth_m
    Water depth at location where core was collected (Source: Producer Defined)
    Range of values
    Minimum:69.3
    Maximum:860.0
    Units:meters
    Resolution:0.1
    T_Depth_cm
    Top of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:7
    Maximum:780
    Units:centimeters
    B_Depth_cm
    Bottom of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:8
    Maximum:781
    Units:centimeters
    Device
    Device used to collect core (Source: Producer Defined)
    ValueDefinition
    PISTON CORERPiston 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 Loss on Ignition (Source: Producer Defined)
    Range of values
    Minimum:5.9541
    Maximum:7.5812
    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:7.5556
    Maximum:14.4169
    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:1.4849
    Maximum:7.4696
    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:7.4819
    Maximum:14.3558
    Units:grams
    Resolution:0.0001
    Sample_Wt_550C_g
    Sample weight after heating to 550 degrees C for 3 hours (Source: Producer Defined)
    Range of values
    Minimum:1.4112
    Maximum:7.4085
    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:0.0048
    Maximum:1.1914
    Units:grams
    Resolution:0.001
    Organic_Carbon_WtPct
    Weight percent of organic 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:0.0727
    Maximum:25.8438
    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:7.4555
    Maximum:14.2605
    Units:grams
    Resolution:0.0001
    Sample_Wt_950C_g
    Sample weight after heating to 950 degrees Celsius for 2 hours (Source: Producer Defined)
    Range of values
    Minimum:1.3848
    Maximum:7.3132
    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:0.0101
    Maximum:0.5307
    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:0.2735
    Maximum:9.7787
    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:0.6209
    Maximum:22.1977
    Units:weight percent
    Resolution:0.0001
    EN577_CarbonContent_TriggerCores.csv
    Bulk organics and carbonate content data for NEMP trigger cores. Point dataset, 34 data records. (Source: Producer Defined)
    Sample_ID
    Sample ID. Naming convention: FFFFF-CC-T-ZZZ-# (FFFFF= Field ID abbreviation) (CC=Core ID) (T=Trigger Core) (ZZ=Sample Type, indicating the original purpose for sample being taken [CC=Carbon Content LOI] [DEN=Dry Bulk Density] [WC=Water Content]) (# = Sample Number) (Source: Producer Defined) character string
    Cruise_ID
    Cruise identification code, specific to research vessel (Source: Producer Defined)
    ValueDefinition
    EN577R/V Endeavor cruise EN577, also known by WHCMSC field activity number 2016-001-FA
    Contact
    Contact for samples (Source: Producer Defined)
    ValueDefinition
    JCHAYTORJason D. Chaytor
    Area
    General area where samples were taken (Source: Producer Defined)
    ValueDefinition
    Mud PatchSouthern New England Mud Patch
    Core_ID
    Core identification number assigned in field. Naming convention EN577-XXTC (EN577=Cruise ID) (XX=Core number) (TC=Piston Core) (Source: Producer Defined) character string
    Latitude_DD
    Latitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:40.305839
    Maximum:40.498682
    Units:decimal degrees
    Longitude_DD
    Longitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:-70.715466
    Maximum:-70.526062
    Units:decimal degrees
    Water_Depth_m
    Water depth at location where core was collected (Source: Producer Defined)
    Range of values
    Minimum:73.5
    Maximum:107.9
    Units:meters
    Resolution:0.1
    T_Depth_cm
    Top of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:5
    Maximum:61
    Units:centimeters
    B_Depth_cm
    Bottom of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:6
    Maximum:62
    Units:centimeters
    Device
    Device used to collect core (Source: Producer Defined)
    ValueDefinition
    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 Loss on Ignition (Source: Producer Defined)
    Range of values
    Minimum:5.5090
    Maximum:7.5525
    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:9.0876
    Maximum:11.7027
    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:2.0780
    Maximum:4.5776
    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:8.9461
    Maximum:11.5115
    Units:grams
    Resolution:0.0001
    Sample_Wt_550C_g
    Sample weight after heating to 550 degrees C for 3 hours (Source: Producer Defined)
    Range of values
    Minimum:1.9742
    Maximum:4.3235
    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:0.1038
    Maximum:0.2541
    Units:grams
    Resolution:0.001
    Organic_Carbon_WtPct
    Weight percent of organic 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:3.8333
    Maximum:5.9043
    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:8.8808
    Maximum:11.4573
    Units:grams
    Resolution:0.0001
    Sample_Wt_950C_g
    Sample weight after heating to 950 degrees Celsius for 2 hours (Source: Producer Defined)
    Range of values
    Minimum:1.9431
    Maximum:4.2470
    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:0.0311
    Maximum:0.0765
    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:1.2050
    Maximum:2.8665
    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:2.7354
    Maximum:6.5070
    Units:weight percent
    Resolution:0.0001
    EN577_CarbonContent_AcousticCores.csv
    Bulk organics and carbonate content data for NEMP gravity/acoustic cores. Point dataset, 71 data records. (Source: Producer Defined)
    Sample_ID
    Sample ID. Naming convention: FFFFF-CC-G-ZZZ-# (FFFFF= Field ID abbreviation) (CC=Core ID) (G=Gravity (Acoustic) Core) (ZZ=Sample Type, indicating the original purpose for sample being taken [CC=Carbon Content LOI] [DEN=Dry Bulk Density] [WC=Water Content]) (# = Sample Number) (Source: Producer Defined) character string
    Cruise_ID
    Cruise identification code, specific to research vessel (Source: Producer Defined)
    ValueDefinition
    EN577R/V Endeavor cruise EN577, also known by WHCMSC field activity number 2016-001-FA
    Contact
    Contact for samples (Source: Producer Defined)
    ValueDefinition
    JCHAYTORJason D. Chaytor
    Area
    General area where samples were taken (Source: Producer Defined)
    ValueDefinition
    Mud PatchSouthern New England Mud Patch
    Core_ID
    Core identification number assigned in field. Naming convention EN577-ACXX (AC=Acoustic Core) (EN577=Cruise ID) (XX=Core number) (Source: Producer Defined) character string
    Latitude_DD
    Latitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:40.4329
    Maximum:40.51077
    Units:decimal degrees
    Longitude_DD
    Longitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:-70.792517
    Maximum:-70.56642
    Units:decimal degrees
    Water_Depth_m
    Water depth at location where core was collected (Source: Producer Defined)
    Range of values
    Minimum:71
    Maximum:86
    Units:meters
    T_Depth_cm
    Top of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:2
    Maximum:225
    Units:centimeters
    B_Depth_cm
    Bottom of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:3
    Maximum:226
    Units:centimeters
    Device
    Device used to collect core (Source: Producer Defined)
    ValueDefinition
    GRAVITY (ACOUSTIC) CORERGravity/Acoustic 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 Loss on Ignition (Source: Producer Defined)
    Range of values
    Minimum:5.9606
    Maximum:7.5625
    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:7.7374
    Maximum:11.3269
    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:1.5461
    Maximum:4.4673
    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:7.6470
    Maximum:11.0971
    Units:grams
    Resolution:0.0001
    Sample_Wt_550C_g
    Sample weight after heating to 550 degrees C for 3 hours (Source: Producer Defined)
    Range of values
    Minimum:1.4577
    Maximum:4.2701
    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:0.0855
    Maximum:0.2298
    Units:grams
    Resolution:0.001
    Organic_Carbon_WtPct
    Weight percent of organic 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:3.2696
    Maximum:6.9814
    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:7.9194
    Maximum:11.0162
    Units:grams
    Resolution:0.0001
    Sample_Wt_950C_g
    Sample weight after heating to 950 degrees Celsius for 2 hours (Source: Producer Defined)
    Range of values
    Minimum:1.4281
    Maximum:4.1946
    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:1.4281
    Maximum:4.1946
    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:1.3742
    Maximum:2.9488
    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:3.1194
    Maximum:6.6938
    Units:weight percent
    Resolution:0.0001
    EN577_CarbonContent_Vibracores.csv
    Bulk organics and carbonate content data for NEMP vibracores. Point dataset, 60 data records. (Source: Producer Defined)
    Sample_ID
    Sample ID. Naming convention: FFFFF-CC-V-ZZZ-# (FFFFF= Field ID abbreviation) (CC=Core ID) (V=Vibracore) (ZZ=Sample Type, indicating the original purpose for sample being taken [CC=Carbon Content LOI] [DEN=Dry Bulk Density] [WC=Water Content]) (# = Sample Number) (Source: Producer Defined) character string
    Cruise_ID
    Cruise identification code, specific to research vessel (Source: Producer Defined)
    ValueDefinition
    EN577R/V Endeavor cruise EN577, also known by WHCMSC field activity number 2016-001-FA
    Contact
    Contact for samples (Source: Producer Defined)
    ValueDefinition
    JCHAYTORJason D. Chaytor
    Area
    General area where samples were taken (Source: Producer Defined)
    ValueDefinition
    Mud PatchSouthern New England Mud Patch
    Core_ID
    Core identification number assigned in field. Naming convention EN577-VCXX (VC=Vibracore) (EN577=Cruise ID) (XX=Core number) (Source: Producer Defined) character string
    Latitude_DD
    Latitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:40.43513
    Maximum:40.51997
    Units:decimal degrees
    Longitude_DD
    Longitude of core that sample came from (Source: Producer Defined)
    Range of values
    Minimum:-70.76678
    Maximum:-70.45498
    Units:decimal degrees
    Water_Depth_m
    Water depth at location where core was collected (Source: Producer Defined)
    Range of values
    Minimum:68
    Maximum:84
    Units:meters
    Resolution:0.1
    T_Depth_cm
    Top of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:5
    Maximum:215
    Units:centimeters
    B_Depth_cm
    Bottom of interval that was sampled for analysis (Source: Producer Defined)
    Range of values
    Minimum:6
    Maximum:216
    Units:centimeters
    Device
    Device used to collect core (Source: Producer Defined)
    ValueDefinition
    VIBRACORERVibracorer
    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 Loss on Ignition (Source: Producer Defined)
    Range of values
    Minimum:5.9650
    Maximum:7.5981
    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:9.5794
    Maximum:12.1123
    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:2.4689
    Maximum:5.3479
    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:9.3559
    Maximum:11.9687
    Units:grams
    Resolution:0.0001
    Sample_Wt_550C_g
    Sample weight after heating to 550 degrees C for 3 hours (Source: Producer Defined)
    Range of values
    Minimum:2.3252
    Maximum:5.1698
    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:0.1215
    Maximum:0.2543
    Units:grams
    Resolution:0.001
    Organic_Carbon_WtPct
    Weight percent of organic 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:2.5026
    Maximum:6.4721
    Units:grams
    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:9.2979
    Maximum:11.8543
    Units:grams
    Resolution:0.0001
    Sample_Wt_950C_g
    Sample weight after heating to 950 degrees Celsius for 2 hours (Source: Producer Defined)
    Range of values
    Minimum:2.2706
    Maximum:5.0942
    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:2.2706
    Maximum:5.0942
    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:0.9210
    Maximum:2.2942
    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:2.0906
    Maximum:5.2079
    Units:weight percent
    Resolution:0.0001
    Entity_and_Attribute_Overview:
    Finalized Loss on Ignition data was taken from individual batch tables and compiled into four CSV (comma-separated value) text files, each pertaining to a core type (piston cores, trigger cores, acoustic/gravity cores, and vibracores).
    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)
    • 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 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 gained through the analyses of cores collected from the New England Mud Patch help provide a comprehensive understanding of the nature and properties of the sediments found in this geographic location. Bulk organics 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 intervals and placed into pre-weighed aluminum dishes. Other samples in this dataset include dry bulk density ("DEN") and water content ("WC") samples that were analyzed for CC-LOI after geotechnical analyses were complete. Dry 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 ceramic crucible.
    Date: 2020 (process 2 of 3)
    Filled crucibles were heated in a muffle furnace for Loss on Ignition 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: 2020 (process 3 of 3)
    Samples' weight differentials were recorded on spreadsheets in batches as analyses were performed. The complete EN577 dataset was later compiled into four CSV (comma-separated value) text files, each pertaining to a core type (piston cores, trigger cores, acoustic/gravity cores, and vibracores). Data sources used in this process:
    • Dean (1974)
  3. What similar or related data should the user be aware of?
    Chaytor, Jason D., Ballard, Megan S., Buczkowski, Brian J., Goff, John A., Lee, Kevin M., Reed, Allen H., and Boggess, Allyson A., 2021, Measurements of Geologic Characteristics and Geophysical Properties of Sediments from the New England Mud Patch: IEEE Oceanic Engineering Society, Piscataway, NJ.

    Online Links:

    Other_Citation_Details:
    This journal article is the publication supported by this data release.

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?
    For piston and trigger cores, the horizontal location accuracy is less than 1 meter. For vibracores and acoustic cores, location accuracy is approximately 3 meters.
  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 98 cores collected during the R/V Endeavor EN577 cruise, 66 cores were analyzed for this loss-on-ignition dataset. Cores chosen for analysis were those that were thought to represent the full range of sediments expected to be encountered. Any cores omitted from analysis were not included because the coring locations were in close proximity to 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 (EN577_CarbonContent_PistonCores.csv, EN577_CarbonContent_TriggerCores.csv, EN577_CarbonContent_AcousticCores.csv), the browse graphic (MudPatchCores_BrowseGraphic.png) and the FGDC CSDGM metadata in XML format (EN577_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: 19-Aug-2021
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)
aboggess@usgs.gov
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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