ECSTDB2005 - U.S. Geological Survey East Coast Sediment Texture Database (2005)

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Frequently anticipated questions:


What does this data set describe?

Title:
ECSTDB2005 - U.S. Geological Survey East Coast Sediment Texture Database (2005)
Abstract:
This sediment database contains location, description, and texture of samples taken by numerous marine sampling programs. Most of the samples are from the Atlantic Continental Margin of the United States, but some are from as diverse locations as Lake Baikal, Russia, the Hawaiian Islands region, Puerto Rico, the Gulf of Mexico, and Lake Michigan. The database presently contains data for over 23,000 samples, which includes texture data for approximately 3800 samples taken or analyzed by the Atlantic Continental Margin Program, a joint U.S. Geological Survey/Woods Hole Oceanographic Institution project conducted from 1962 to 1970.
Supplemental_Information:
This publication supersedes U.S. Geological Survey Open-File Report 00-358.
  1. How might this data set be cited?
    U.S. Geological Survey, 200508, ECSTDB2005 - U.S. Geological Survey East Coast Sediment Texture Database (2005): Open-File Report 2005-1001, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Poppe, L.J., Williams, S.J., and Paskevich, V.F., 2005, USGS East-Coast Sediment Analysis: Procedures, Database, and GIS Data: Open-File Report 2005-1001, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -170.520000
    East_Bounding_Coordinate: 123.556830
    North_Bounding_Coordinate: 69.460900
    South_Bounding_Coordinate: -16.232067
  3. What does it look like?
    https://pubs.usgs.gov/of/2005/1001/data/surficial_sediments/ecstdb2005-world-thumb.gif (GIF)
    Thumbnail image showing location of USGS East Coast surficial sediment samples (ecstdb2005) displayed on world map
    https://pubs.usgs.gov/of/2005/1001/data/surficial_sediments/ecstdb2005-world.gif (JPEG)
    Location of USGS East Coast surficial sediment samples (ecstdb2005) displayed on world map
    https://pubs.usgs.gov/of/2005/1001/data/surficial_sediments/ecstdb2005.jpg (JPEG)
    Image showring location and classification of USGS East Coast Sediment Texture Database surficial samples plotted along the U.S. Atlantic East Coast.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 1955
    Ending_Date: 2004
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  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):
      • Entity point (23308)
    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 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
  7. How does the data set describe geographic features?
    ecstdb2005
    Shapefile Attribute Table (Source: ESRI)
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features.
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    GROUP
    Number assigned to data based on source. (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    1Samples taken before start of the joint USGS/WHOI project.
    2USGS/WHOI Atlantic Continental Margin Program stations
    3samples analyzed by the USGS Branch of Atlantic Marine Geology Sediment Laboratory
    DB_ID
    Unique identification number generated in the sedimentation laboratory of the USGS's Woods Hole Science Center. For samples analyzed after 1980 this identifier consists of 2 characters and 3 numerics (e.g. AS114). For samples analyzed prior to 1980, this identifier consists of 4 numerics possibly followed by as many as 2 characters. (Source: USGS East Coast Sediment Texture Database data dictionary) Information unavailable from original metadata.
    FIELD_NO
    Sample name or number as assigned in the field by the Chief Scientist (Source: USGS East Coast Sediment Texture Database data dictionary) Information unavailable from original metadata.
    PROJECT
    Name of project or project number under which samples were taken or data generated; sometimes project name indicates a more specific area (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 21.
    CRUISE_ID
    Name or number of cruise on which sample collected. Historically cruise identifiers were a combination of ship name, year of cruise and cruise leg. In more recent years, cruise identifier is a sequential serial number assigned to field activities within a specific year. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 21.
    CONTACT
    Name of Principal Investigator or Chief Scientist responsible for data collection (usually first initial and last name) (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 12.
    AREA
    General geographic area of data collection. Name is general enough to easily locate area on a state map. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 33.
    LATITUDE
    Latitude coordinate, in decimal-degrees, of sample location. South latitude recorded as negative values. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-16.2320670
    Maximum:69.4609
    Units:signed decimal degrees
    Resolution:.00000001
    LONGITUDE
    Longitude coordinate, in decimal degrees, of sample location. West longitude is recorded as negative values. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-170.52
    Maximum:123.55683
    Units:signed decimal degrees
    Resolution:.00000001
    DEPTH_M
    Measured depth of water overlying sediment at sample time, not corrected for tides, in (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:5001.00
    Units:meters
    Resolution:.01
    T_DEPTH
    Top depth of the sample below the sediment-water interface, in centimeters (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0
    Maximum:115049
    Units:centimeters
    Resolution:1
    B_DEPTH
    Bottom depth of the sample below the sediment-water interface, in centimeters (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0
    Maximum:115054
    Units:centimeters
    Resolution:1
    DEVICE
    Device used to collect the sample. (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    1 METER PLANKTON NETInformation unavailable from original metadata.
    1-METER DREDGEInformation unavailable from original metadata.
    3/4 METER PLANKTON NEInformation unavailable from original metadata.
    35MM STEREO CAMERA+DREDInformation unavailable from original metadata.
    ANCHOR DREDGInformation unavailable from original metadata.
    ANCHOR FLUKESInformation unavailable from original metadata.
    ANCHOR SAMPLEInformation unavailable from original metadata.
    BLAKE TRAWLInformation unavailable from original metadata.
    BOOMERANG CORERInformation unavailable from original metadata.
    BOT DRIFTER SALINOMETERInformation unavailable from original metadata.
    BOTTOM DRIFTERInformation unavailable from original metadata.
    BOTTOM DRIFTER BUGInformation unavailable from original metadata.
    BOTTOM SKIMMERInformation unavailable from original metadata.
    BOX COREInformation unavailable from original metadata.
    BOX SAMPLERInformation unavailable from original metadata.
    CAM GRAB W/O CAM+PLANK TInformation unavailable from original metadata.
    CAMERA SLEDInformation unavailable from original metadata.
    CAMPBELL GRAB W/ CAMERAInformation unavailable from original metadata.
    CAMPBELL GRAB W/O CAMERAInformation unavailable from original metadata.
    CHAIN BAGInformation unavailable from original metadata.
    CHAIN BAG DREDGEInformation unavailable from original metadata.
    CHAIN BAG+PIPE DREDGEInformation unavailable from original metadata.
    CHAIN BAG+SM PIPE DREDGEInformation unavailable from original metadata.
    CHAIN BAG+PIPEInformation unavailable from original metadata.
    CHAIN BAG+PIPE DREDGEInformation unavailable from original metadata.
    CHAIN BAG+SM PIPEInformation unavailable from original metadata.
    CHAIN BAG+SM PIPE DREDGEInformation unavailable from original metadata.
    CHAIN DREDGEInformation unavailable from original metadata.
    CORING TUBE IN MECH ARMInformation unavailable from original metadata.
    D-L SNAPPERInformation unavailable from original metadata.
    D-L SNAPPER + DREDGEInformation unavailable from original metadata.
    D-L SNAPPER + GRAV CORInformation unavailable from original metadata.
    DIETZ-LAFONDInformation unavailable from original metadata.
    DIETZ-LAFOND GRABInformation unavailable from original metadata.
    DIETZ-LAFOND SNAPPERInformation unavailable from original metadata.
    DIGBY DREDGEInformation unavailable from original metadata.
    DIGBY DREDGE W/ CNVS BAGInformation unavailable from original metadata.
    DRAG DREDGEInformation unavailable from original metadata.
    DREDGEInformation unavailable from original metadata.
    Drilled SampleInformation unavailable from original metadata.
    DRILLED SAMPLEInformation unavailable from original metadata.
    EDGERTON CAMERAInformation unavailable from original metadata.
    GOS ANCHOR CHAINInformation unavailable from original metadata.
    GRAB SAMPLERInformation unavailable from original metadata.
    GRAPPLING HOOKInformation unavailable from original metadata.
    GRAVITY CORERInformation unavailable from original metadata.
    HAND SAMPLEInformation unavailable from original metadata.
    Hand SampleInformation unavailable from original metadata.
    HYDROSTATIC COREInformation unavailable from original metadata.
    HYDROSTATIC CORERInformation unavailable from original metadata.
    Hydrostatic CORERInformation unavailable from original metadata.
    IKU GRABInformation unavailable from original metadata.
    JAPANESE DREDGEInformation unavailable from original metadata.
    M-VV GRAB + D-LF SNAPPERInformation unavailable from original metadata.
    M-VV GRAB + GRAVITY COREmodified Van Veen grab sampler and gravity corer
    MECH ARM + CORE DRILLInformation unavailable from original metadata.
    MECH ARM W/ CORERInformation unavailable from original metadata.
    MECH ARM W/ PRY BARInformation unavailable from original metadata.
    MECHANICAL ARMInformation unavailable from original metadata.
    MINIATURE VAN VEENInformation unavailable from original metadata.
    MINIATURE VAN VEEN W/O C.Information unavailable from original metadata.
    MODIFIED PIERCE DREDGEInformation unavailable from original metadata.
    NAInformation unavailable from original metadata.
    NATURALIST DREDGEInformation unavailable from original metadata.
    NISKIN SAMPLERInformation unavailable from original metadata.
    OTHERInformation unavailable from original metadata.
    PAUL CORERInformation unavailable from original metadata.
    PIPE DREDGEInformation unavailable from original metadata.
    PIPE DREDGE AND D-L SNAPInformation unavailable from original metadata.
    PIPE DREDGE, 12 INCHInformation unavailable from original metadata.
    PISTON CORERInformation unavailable from original metadata.
    PONAR SAMPLERInformation unavailable from original metadata.
    PULSE AUGERInformation unavailable from original metadata.
    PUSH CORERInformation unavailable from original metadata.
    Pulse AugerInformation unavailable from original metadata.
    RAKED INTO BASKET W/ ARMInformation unavailable from original metadata.
    RING NETInformation unavailable from original metadata.
    ROCKER DREDGEInformation unavailable from original metadata.
    ROTARY CORERInformation unavailable from original metadata.
    ROTOSONIC CORERInformation unavailable from original metadata.
    SALINOMETER, VANDORN BOTSInformation unavailable from original metadata.
    SCALLOP DREDGEInformation unavailable from original metadata.
    SCOOP FISHInformation unavailable from original metadata.
    SEDIMENT TRAPInformation unavailable from original metadata.
    SHIPEK GRABInformation unavailable from original metadata.
    SMALL VAN VEENsmall Van Veen grab sampler
    SMITH-MAC+MIN W, CAMERAInformation unavailable from original metadata.
    SMITH-MACINTYRE GRABSmith-MacIntyre grab sampler
    SMITH-MACINTYRE W/ CAMERAInformation unavailable from original metadata.
    SMITH-MACINTYRE W/O CAMERAInformation unavailable from original metadata.
    SMITH/MAC AND NISKIN SPLInformation unavailable from original metadata.
    SUBMERSIBLE SAMPLEInformation unavailable from original metadata.
    Submersible SampleInformation unavailable from original metadata.
    TRAWLInformation unavailable from original metadata.
    TRIGGER COREInformation unavailable from original metadata.
    UNKNOWNInformation unavailable from original metadata.
    VAN VEEN AND COREInformation unavailable from original metadata.
    VAN VEEN GRABsample collected with Van Veen grab sampler
    Van Veen Grabsample collected with Van Veen grab sampler
    VIBRA COREInformation unavailable from original metadata.
    VISUAL OBSERVATIONInformation unavailable from original metadata.
    VV GRAB + D-L SNAPPERInformation unavailable from original metadata.
    WATER PUMP ONLYInformation unavailable from original metadata.
    Character string of width 28.
    MONTH_COLL
    Calendar month sample collected (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankMonth sample was collected is unknown.
    Range of values
    Minimum:1
    Maximum:12
    Units:month of year
    Resolution:1
    DAY_COLL
    Calendar day sample collected (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankDay sample was collected is unknown.
    Range of values
    Minimum:1
    Maximum:31
    Units:day of month
    Resolution:1
    YEAR_COLL
    Calendar year sample collected (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankYear sample connected is unknown.
    Range of values
    Minimum:1955
    Maximum:2004
    Units:year
    Resolution:1
    MONTH_ANAL
    Calendar month sample analyzed (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankMonth sample was analyzed is unknown
    Range of values
    Minimum:1
    Maximum:12
    Units:month of year
    Resolution:1
    DAY_ANAL
    Calendar day sample analyzed (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankMonth sample was analyzed is unknown.
    Range of values
    Minimum:1
    Maximum:31
    Units:day of month
    Resolution:1
    YEAR_ANAL
    Calendar year sample analyzed (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankYear sample was analyzed is unknown.
    Range of values
    Minimum:1969
    Maximum:2000
    Units:year
    Resolution:1
    WEIGHT
    Weight of wet sample in grams (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    (blank)Weight not computed or recorded.
    Range of values
    Minimum:0
    Maximum:9086.1
    Units:grams
    Resolution:.0001
    GRAVEL_PCT
    Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 phi and larger) (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0.00
    Maximum:100.00
    Units:percent
    Resolution:.01
    SAND_PCT
    Sand content in percent dry weight of the sample (particles with nominal diameters less than 2 mm, but greater than or equal to 0.0625 mm ; 0 phi through 4 phi ) (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0.00
    Maximum:103.02
    Units:percent
    Resolution:.01
    SILT_PCT
    Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm, but greater than or equal to 0.004 mm; 5 phi through 8 phi, inclusive) (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0.00
    Maximum:100.00
    Units:percent
    Resolution:.01
    CLAY_PCT
    Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 phi and smaller) (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0.00
    Maximum:94.71
    Units:percent
    Resolution:.01
    CLASSIFICA
    Sediment Classification - Sediment description based on a rigorous definition, usually Shepard, 1954 (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    BEDROCKexposed solid rock
    BOULDERSgravel whose main phase is <256 mm (usually >50%)
    CLAYsediment whose main phase is <4 microns (usually >50%)
    CLAYEY SANDsediment whose main phase is sand (>50%) with significant clay
    CLAYEY SILTsediment whose main phase is silt (>50%) with significant clay
    GRAVELsediment whose main phase is >2 mm ( ususlly >50%)
    GRAVELLY SEDIMENTsediment with significant amounts of gravel (>10%, but <50%)
    SANDsediment whose main phase is <2 mm, but >.062 mm
    SAND SILT CLAYsediment with sand, silt, and clay concentrations all >20%
    SANDY CLAYsediment whose main phase is clay (>50%) with significant sand
    SANDY SILTsediment whose main phase is silt (>50%) with significant sand
    SILTsediment whose main phase is <0.62 mm, but >4 microns
    SILTY CLAYsediment whose main phase is clay (>50%) with significant silt
    SILTY SANDsediment whose main phase is sand (>50%) with significant silt
    Character string of width 19.
    MEDIAN
    Middle point in the grain size distribution in phi units (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-7.35
    Maximum:10.74
    Units:phi
    Resolution:.01
    MEAN
    Average value in the grain size distribution in phi units (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-5.93
    Maximum:10.62
    Units:phi
    Resolution:.01
    STDEV
    Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (sorting) (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-0.08
    Maximum:7.16
    Units:phi
    Resolution:.01
    SKEWNESS
    Skewness (deviation from symmetrical form) of the grain size distribution in phi units (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-4217.60
    Maximum:123907.67
    Units:phi
    Resolution:.01
    KURTOSIS
    Kurtosis (degree of curvature near the mode) of the grain size distribution in phi units (Source: USGS Eastcoast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-968709.00
    Maximum:357391.91
    Units:phi
    Resolution:.01
    MODE1CLASS
    Mode 1 class - First mode (particle size that occurs the most number of times) in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-7.500
    Maximum:10.600
    MODE1FREQ
    Mode 1 strength - Modal strength of the first mode in percent (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0.00
    Maximum:100.00
    Units:percent
    Resolution:.01
    MODE2CLASS
    Mode 2 class - Second mode in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-7.50
    Maximum:13.40
    Units:phi
    Resolution:.01
    MODE2FREQ
    Mode 2 strength - Modal strength of the second mode in percent (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0.00
    Maximum:60.50
    Units:percent
    Resolution:.01
    MODE3CLASS
    Mode 3 class - Third mode in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-6.50
    Maximum:15.40
    Units:phi
    Resolution:.01
    MODE3FREQ
    Mode 3 strength - Modal strength of the third mode in percent (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:-2.50
    Maximum:18.15
    Units:percent
    Resolution:.01
    NMODES
    Number of modes (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    blankValue not computed or available for sample.
    Range of values
    Minimum:0
    Maximum:5
    Units:integer count
    Resolution:1
    PHIM5
    -5 Phi - Weight percent of the sample in the -5 phi fraction (nominal diameter of particles greater than or equal to 32 mm, but less than 64 mm); very coarse pebbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:100.00
    Units:percent
    Resolution:.01
    PHIM4
    -4 Phi - Weight percent of the sample in the -4 phi fraction (nominal diameter of particles greater than or equal to 16 mm, but less than 32 mm); coarse pebbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:100.00
    Units:percent
    Resolution:.01
    PHIM3
    -3 Phi - Weight percent of the sample in the -3 phi fraction (nominal diameter of particles greater than or equal to 8 mm, but less than 16 mm); medium pebbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:100.00
    Units:percent
    Resolution:.01
    PHIM2
    -2 Phi - Weight percent of the sample in the -2 phi fraction (nominal diameter of particles greater than or equal to 4 mm, but less than 8 mm); fine pebbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-1.00
    Maximum:64.43
    Units:percent
    Resolution:.01
    PHIM1
    -1 Phi - Weight percent of the sample in the -1 phi fraction (nominal diameter of particles greater than or equal to 2 mm, but less than 4 mm); very fine pebbles (granules) (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:97.00
    Units:percent
    Resolution:.01
    PHI_0
    0 Phi - Weight percent of the sample in the 0 phi fraction (nominal diameters of particles greater than or equal to 1 mm, but less than 2 mm); very coarse sand (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-19.73
    Maximum:86.00
    Units:percent
    Resolution:.01
    PHI_1
    1 Phi - Weight percent of the sample in the 1 phi fraction (nominal diameter of particles greater than or equal to 0.5 mm, but less than 1 mm); coarse sand (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:92.67
    Units:percent
    Resolution:.01
    PHI_2
    2 Phi - Weight percent of the sample in the 2 phi fraction (nominal diameter of particles greater than or equal to 0.25 mm, but less than 0.5 mm); medium sand (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:96.00
    Units:percent
    Resolution:.01
    PHI_3
    3 Phi - Weight percent of the sample in the 3 phi fraction (nominal diameter of particles greater than or equal to 0.125 mm, but less than 0.25 mm); fine sand (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:94.66
    Units:percent
    Resolution:.01
    PHI_4
    4 Phi - Weight percent of the sample in the 4 phi fraction (nominal diameters of particles greater than or equal to .0625 mm, but less than 0.125 mm); very fine sand (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:92.75
    Units:percent
    Resolution:.01
    PHI_5
    5 Phi - Weight percent of the sample in the 5 phi fraction (nominal diameter of particles greater than or equal to 0.031 mm, but less than 0.0625 mm); coarse silt (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:80.51
    Units:percent
    Resolution:.01
    PHI_6
    6 Phi - Weight percent of the sample in the 6 phi fraction (nominal diameter of particles greater than or equal to 0.016 mm, but less than 0.031 mm); medium silt (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:68.32
    Units:percent
    Resolution:.01
    PHI_7
    7 Phi - Weight percent of the sample in the 7 phi fraction (nominal diameter of particles greater than or equal to 0.008 mm, but less than 0.016 mm); fine silt (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:47.57
    Units:percent
    Resolution:.01
    PHI_8
    8 Phi - Weight percent of the sample in the 8 phi fraction (nominal diameter of particles greater than or equal to 0.004 mm, but less than 0.008 mm); very fine silt (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:47.90
    Units:percent
    Resolution:.01
    PHI_9
    9 Phi - Weight percent of the sample in the 9 phi fraction (nominal diameter of particles greater than or equal to 0.002 mm, but less than 0.004 mm); coarse clay (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-3.87
    Maximum:45.55
    Units:percent
    Resolution:.01
    PHI_10
    10 Phi - Weight percent of the sample in the 10 phi fraction (nominal diameter of particles greater than or equal to 0.001 mm, but less than 0.002 mm); medium clay (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:54.63
    Units:percent
    Resolution:.01
    PHI_11
    11 Phi - Weight percent of the sample in the 11 phi fraction (nominal diameter of particles greater than or equal to 0.5 µm, but less than 0.001 mm); fine clay (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:55.71
    Units:percent
    Resolution:.01
    ANALYST
    Name(usually first initial and last name) of person who performed the grain size or physical properties analysis (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 43.
    ANAL_COMM
    Comments on analyses - Any further information about sediment analysis for all or specific parameters in this table (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 154.
    LITHOLOGY
    General lithologic description of sample (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 72.
    COMMENTS
    Comments on sample collection or lithology (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 66.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
    The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.
  3. To whom should users address questions about the data?
    Larry Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov

Why was the data set created?

This point shapefile contains the locations of marine sediment samples collected and analyzed by the U.S. Geological Survey, Woods Hole Science Center starting in 1955 thru 2004. Distribution of this dataset allows the user the ability to visualize the information in a Geographic Information system.

How was the data set created?

  1. From what previous works were the data drawn?
    ecstdb2005.xls (source 1 of 1)
    U.S. Geological Survey - assumed, unknown, Information unavailable from original metadata..

    Type_of_Source_Media: disc
    Source_Contribution:
    This Excel spread sheet contains the accumulated results of the surficial sediment analysis collected and processed by the U.S. Geological Survey (USGS), Woods Hole Science Center (WHSC). This spread sheet was the source of the data converted to the ESRI shapefile.
  2. How were the data generated, processed, and modified?
    Date: 11-Aug-2001 (process 1 of 6)
    The requested surficial sediment data fields were exported from the most current Excel spreadsheet available as a comma delimited text file. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Polly Hastings
    Data Specialist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 (voice)
    (508) 457-2310 (FAX)
    Data sources used in this process:
    • ecstdb2005.xls
    Data sources produced in this process:
    • ecstdb2005.txt
    Date: 31-Jan-2005 (process 2 of 6)
    The comma delimited source file was imported into ArcView to create a table. The table was then converted to an ArcView shapefile to be used as a GIS data layer. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Larry Poppe
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
    Data sources used in this process:
    • ecstdb2005.txt
    Data sources produced in this process:
    • ecstdb2005.dbf
    • ecst0500.shp
    • ecst0500.shx
    • ecst0500.sbn
    • ecst0500.sbx
    • ecst0500.avl
    • ecstdb2005.shp
    • ecstdb2005.shx
    Date: 11-Oct-2017 (process 3 of 6)
    Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The source information was incomplete and had to be modified to meet the standard. Minor fixes to the attribute format for some attributes were needed. Attempted to modify http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. 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
    Date: 20-Jul-2018 (process 4 of 6)
    USGS Thesaurus keywords added to the keyword section. 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
    Date: 18-Nov-2019 (process 5 of 6)
    Crossref DOI link was added as the first link in the metadata. 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
    Date: 08-Sep-2020 (process 6 of 6)
    Added keywords section with USGS persistent identifier as theme keyword. 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?
    Poppe(ed.), Lawrence J., and Polloni(ed.), Chris, 20000501, USGS East-Coast Sediment Analysis: Procedures, Database, and Georeferenced Displays: Open-File Report 00-358, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: Publication OFR2005-1001 supersedes this publication.

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

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
    Positional accuracy varies due to different systems, datums, and navigational equipment used over the years.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This data set is complete inasmuch as it contains all the samples processed at the U.S. Geological Survey (USGS), Woods Hole Science Center (WHSC) Sediment Laboratory through November 2004
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for topological consistency were performed on this data.

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:
Public domain data from the U.S. government is freely redistributable with proper metadata and source attribution.
  1. Who distributes the data set? (Distributor 1 of 3)
    Larry Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
    Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data are 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 data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

  1. Who distributes the data set? (Distributor 2 of 3)
    Larry Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data are available in Microsoft Excel spreadsheet format. The user must have software capable of reading or importing the Excel formatted data file.

  1. Who distributes the data set? (Distributor 3 of 3)
    Larry Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data are available as a generic ASCII formatted text file. The user must have a software program capable of reading the comma delimited data file.

Who wrote the metadata?

Dates:
Last modified: 16-Nov-2021
Metadata author:
Valerie Paskevich
U.S. Geological Survey
Information Specialist, GIS Coordinator
384 Woods Hole Road
Woods Hole, MA
USA

(508) 548-8700 x2281 (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 metadata contact is no longer with the USGS or the email is otherwise invalid.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2005-1001/ecstdb2005.shp.faq.html>
Generated by mp version 2.9.50 on Tue Nov 16 10:06:30 2021