Entity_Type:
Entity_Type_Label: RB_SedimentSamples
Entity_Type_Definition: Point location of sediment samples
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features
Attribute:
Attribute_Label: GROUP
Attribute_Definition: Internal Value - Sediment Lab Grouping
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 3
Attribute:
Attribute_Label: DB_ID
Attribute_Definition:
Unique identifier consisting of two characters and three numerics assigned during lab analysis
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: FIELD_NO
Attribute_Definition: Sample name assigned in the field
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: PROJECT
Attribute_Definition: Project under which the samples were taken (Red Brook Harbor)
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: CRUISE_ID
Attribute_Definition:
Name or number of WHCMSC cruise during which the samples were collected
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: CONTACT
Attribute_Definition:
Name (initial and last name) of the principal investigator and/or survey data curator
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: AREA
Attribute_Definition: General geographic where the samples were taken
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition: Latitude coordinate of sample location (decimal degrees, WGS84)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 41.666861
Range_Domain_Maximum: 41.688712
Attribute_Units_of_Measure: Decimal degrees
Attribute_Measurement_Resolution: 0.000001
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition:
Longitude coordinate of sample location (decimal degrees, WGS84)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.673637
Range_Domain_Maximum: -70.62072
Attribute_Units_of_Measure: Decimal degrees
Attribute_Measurement_Resolution: 0.000001
Attribute:
Attribute_Label: DEPTH_M
Attribute_Definition:
Measured depth, in meters, of water overlying sediment at sample time. Depth value is not corrected for tides.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.8
Range_Domain_Maximum: 10.5
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: T_DEPTH
Attribute_Definition:
Top depth of the sample below sediment-water interface in centimeters
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: B_DEPTH
Attribute_Definition:
Bottom depth of the sample below sediment-water interface in centimeters
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 2
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: DEVICE
Attribute_Definition: Device used to collect sample
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: MINI-SEABOSS
Attribute:
Attribute_Label: MONTH_COLL
Attribute_Definition: Calendar month sample collected based on time in UTC.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 11
Range_Domain_Maximum: 11
Attribute:
Attribute_Label: DAY_COLL
Attribute_Definition: Calendar day sample collected based on time in UTC.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 16
Range_Domain_Maximum: 17
Attribute:
Attribute_Label: YEAR_COLL
Attribute_Definition: Calendar year sample collected based on time in UTC.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 9
Range_Domain_Maximum: 9
Attribute:
Attribute_Label: MONTH_ANAL
Attribute_Definition: Calendar month sample analyzed.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 12
Range_Domain_Maximum: 12
Attribute:
Attribute_Label: DAY_ANAL
Attribute_Definition: Calendar day sample analyzed.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31
Range_Domain_Maximum: 31
Attribute:
Attribute_Label: YEAR_ANAL
Attribute_Definition: Calendar year sample analyzed.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2009
Range_Domain_Maximum: 2009
Attribute:
Attribute_Label: WEIGHT
Attribute_Definition: Weight of dry sample in grams
Attribute_Definition_Source: Sediment Laboratory Analyst
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 11.2049
Range_Domain_Maximum: 578.48
Attribute_Units_of_Measure: grams
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: GRAVEL_PCT
Attribute_Definition:
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1phi and larger)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 71.32
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SAND_PCT
Attribute_Definition:
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 ; 0phi through 4phi )
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5.94
Range_Domain_Maximum: 96.92
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SILT_PCT
Attribute_Definition:
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; 5phi through 8phi, inclusive)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.29
Range_Domain_Maximum: 71.25
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLAY_PCT
Attribute_Definition:
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9phi and smaller)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.15
Range_Domain_Maximum: 22.81
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLASSIFICA
Attribute_Definition:
Sediment description based on a rigorous definition (Shepard, 1954)
Attribute_Definition_Source:
USGS East Coast Sediment Texture Database data dictionary - USGS OFR 2005-1001
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GRAVEL
Enumerated_Domain_Value_Definition: Sediment whose main phase (usually >50%) is >2 mm
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GRAVELLY SEDIMENT
Enumerated_Domain_Value_Definition:
Sediment whose main phase (usually >50%) is >2 mm, but with significant sand)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SAND
Enumerated_Domain_Value_Definition: Sediment whose main phase is <2 mm, but >0.062 mm
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SILTY SAND
Enumerated_Domain_Value_Definition:
Sediment whose main phase is sand (usually >50%), but with significant silt
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SAND SILT CLAY
Enumerated_Domain_Value_Definition: Sediment with sand, silt, and clay concentrations all <20%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SANDY SILT
Enumerated_Domain_Value_Definition:
Sediment whose main phase is silt (usually >50%), but with significant sand
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CLAYEY SILT
Enumerated_Domain_Value_Definition:
Sediment whose main phase is silt (usually >50%), but with significant clay
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: MEDIAN
Attribute_Definition: Middle point in the grain-size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -5.28
Range_Domain_Maximum: 6.81
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: MEAN
Attribute_Definition: Average value in the grain-size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -3.41
Range_Domain_Maximum: 6.67
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: STDEV
Attribute_Definition: Standard Deviation of the grain-size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.26
Range_Domain_Maximum: 3.67
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SKEWNESS
Attribute_Definition: Deviation from symmetrical form of the grain-size distribution
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.5
Range_Domain_Maximum: 1.3
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: KURTOSIS
Attribute_Definition:
Degree of curvature near the mode of the grain-size distribution
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1.05
Range_Domain_Maximum: 12.31
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: MODE1CLASS
Attribute_Definition:
First mode (particle size that occurs the most number of times) in phi units
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: MODE1FREQ
Attribute_Definition: Modal strength of the first mode in percent.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: MODE2CLASS
Attribute_Definition: Second mode in phi units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: MODE2FREQ
Attribute_Definition: Modal strength of the second mode in percent.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: MODE3CLASS
Attribute_Definition: Third mode in phi units.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: MODE3FREQ
Attribute_Definition: Modal strength of the third mode in percent.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: NMODES
Attribute_Definition: Number of modes
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: null value
Attribute:
Attribute_Label: PHIM5
Attribute_Definition: Weight percent of the sample in the -5 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 69.67
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM4
Attribute_Definition: Weight percent of the sample in the -4 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 27.91
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM3
Attribute_Definition: Weight percent of the sample in the -3 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 41.47
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM2
Attribute_Definition: Weight percent of the sample in the -2 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 28.39
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM1
Attribute_Definition: Weight percent of the sample in the -1 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 12.68
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_0
Attribute_Definition: Weight percent of the sample in the 0 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.25
Range_Domain_Maximum: 16.83
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_1
Attribute_Definition: Weight percent of the sample in the 1 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.58
Range_Domain_Maximum: 37.6
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_2
Attribute_Definition: Weight percent of the sample in the 2 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.35
Range_Domain_Maximum: 45.77
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_3
Attribute_Definition: Weight percent of the sample in the 3 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.69
Range_Domain_Maximum: 38.98
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_4
Attribute_Definition: Weight percent of the sample in the 4 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.38
Range_Domain_Maximum: 41.1
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_5
Attribute_Definition: Weight percent of the sample in the 5 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 7.65
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_6
Attribute_Definition: Weight percent of the sample in the 6 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.06
Range_Domain_Maximum: 17.81
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_7
Attribute_Definition: Weight percent of the sample in the 7 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.09
Range_Domain_Maximum: 22.85
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_8
Attribute_Definition: Weight percent of the sample in the 8 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.12
Range_Domain_Maximum: 22.94
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_9
Attribute_Definition: Weight percent of the sample in the 9 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.09
Range_Domain_Maximum: 13.69
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_10
Attribute_Definition: Weight percent of the sample in the 10 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.05
Range_Domain_Maximum: 6.47
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_11
Attribute_Definition: Weight percent of the sample in the 11 phi fraction
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 2.65
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: ANALYST
Attribute_Definition:
Name(usually first initial and last name) of person who performed the grain size or physical properties analysis
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: ANAL_COMM
Attribute_Definition:
Any further information about sediment analysis for all or specific parameters in this table
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: LITHOLOGY
Attribute_Definition: General lithologic description of sample
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition: Comments on sample collection or lithology
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 254
Entity_and_Attribute_Overview:
The Attribute Definition Source for most of these attributes is the USGS East Coast Sediment Texture Database data dictionary which can be found in USGS Open File Report 2005-1001 (
http://pubs.usgs.gov/of/2005/1001/). The following seven fields in the attribute table are not populated with values: MODE1CLASS, MODE1FREQ, MODE2CLASS, MODE2FREQ, MODE3CLASS, MODE3FREQ, and NMODES. These fields were utilized in previous versions of the USGS sediment analysis process, but were not utilized in the sediment sample analysis for this project.
Entity_and_Attribute_Detail_Citation: