Short Field Name 
FullLength
Field Name 
Field Description 
ANALYSIS 
Analysis 
Verbal description of methodology 
ANALYST 
Analyst 
Name of person who performed the grain size or physical properties analysis 
ANAL_COMM 
Analysts comments 
Any further information about analyses 
AREA 
Area 
General geographic area (general enough to easily locate on a state map) 


BAY 
Bay 
Bay or region where sample was collected 
BDEPTH 
Bottom depth 
Depth within the core to the bottom of the sample, in cm 
B_DEPTH 
Bottom depth 
Bottom depth of the sample below the sedimentwater interface, in cm 
BOTTOM_DES 
Bottom description 
Brief description of bottom character 


CACO3 
Calcium carbonate 
Percentage of carbonate in a sample determined by insoluble residue 
CATALOG_NO 
Catalog number 
Unique number assigned to each record by the Smithsonian Institution 
CFP11 
Cfp11 
Cumulative frequency percent of the 11 phi fraction and coarser (less than 0.001 mm) 
CFP10 
Cfp10 
Cumulative frequency percent of the 10 phi fraction and coarser (less than 0.002 mm) 
CFP09 
Cfp09 
Cumulative frequency percent of the 9 phi fraction and coarser (less than 0.004 mm) 
CFP08 
Cfp08 
Cumulative frequency percent of the 8 phi fraction and coarser (less than 0.008 mm) 
CFP07 
Cfp07 
Cumulative frequency percent of the 7 phi fraction and coarser (less than 0.0016 mm) 
CFP06 
Cfp06 
Cumulative frequency percent of the 6 phi fraction and coarser (less than 0.031 mm) 
CFP05 
Cfp05 
Cumulative frequency percent of the 5 phi fraction and coarser (less than 0.062 mm) 
CFP04 
Cfp04 
Cumulative frequency percent of the 4 phi fraction and coarser (less than 0.125 mm) 
CFP03 
Cfp03 
Cumulative frequency percent of the 3 phi fraction and coarser (less than 0.250 mm) 
CFP02 
Cfp02 
Cumulative frequency percent of the 2 phi fraction and coarser (less than 0.5 mm) 
CFP01 
Cfp01 
Cumulative frequency percent of the 1 phi fraction and coarser (less than 0.1 mm) 
CFP00 
Cfp00 
Cumulative frequency percent of the 0 phi fraction and coarser (less than 2 mm) 
CFPM1 
Cfpm1 
Cumulative frequency percent of the 1 phi fraction and coarser (less than 4 mm) 
CFPM2 
Cfpm2 
Cumulative frequency percent of the 2 phi fraction and coarser (less than 8 mm) 
CFPM3 
Cfpm3 
Cumulative frequency percent of the 3 phi fraction and coarser (less than 16 mm) 
CFPM4 
Cfpm4 
Cumulative frequency percent of the 4 phi fraction and coarser (less than 32 mm) 
CFPM5 
Cfpm5 
Cumulative frequency percent of the 4 phi fraction and coarser (less than 32 mm) 
CLASSIFICA 
Classification 
Textural classification based on a rigorous scheme (e.g. Shepard, 1954; Folk, 1974) 
CLASS 
Classification 
Textural classification based on a rigorous scheme (e.g. Shepard, 1954; Folk, 1974) 
CLASS_SYS 
Classification system 
Description of the system used for classification 
CLASS_CODE 
Classification code 
Classification code number (from NOS Digital Database) 
CLAY 
Clay 
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 phi and smaller) 
CLAY_PCT 
Clay 
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 phi and smaller) 
CLAYX 
Clay (coarse) 
Percent of clay fraction coarser than 0.1 microns 
CODE 
Cartographic code 
Numeric cartographic code (primarily from NOS Hydrographic Database) for bottom character 
COLOR 
Color 
Wet sediment color based on the GSA rock color chart 
COLLECTOR 
Collector 
Chief scientist who collected the sample 
COLLOID 
Colloidal clay 
Percent of the clay fraction that is finer than 0.1 microns 
COMBINED 
Combined 
Description of both the primary and secondary lithologies 
COMMENTS 
Comments 
Comments on sample collection, analysis, or lithology 
CONSECNO 
Consecutive Number 
Sample identifier assigned to distinguish between stations 
CONTACT 
Contact 
Individual
responsible for details and distribution of dataset; usually the
Chief Scientist involved in the collection of the dataset 
CORE 
Core 
Identifier (usually a numeric) assigned to each core 
CORE_ID 
Core identifier 
Identifier (usually a numeric) assigned to each core 
CRUISEID 
Cruise identifier 
Name or number of cruise on which sample was collected 
CRUISE_ID 
Cruise identifier 
Name or number of cruise on which sample was collected 
C_Code 
Classification Code 
Code assigned by a scientist to describe sample 


DATE 
Date 
Day, month, and year (ddmmyy or yyyymmdd) of sample collection 
DAY_ANAL 
Day analyzed 
Day during which sample was analyzed 
DAY_COLL 
Day collected 
Day during which sample was collected 
DEPTH
(m) 
Depth in meters 
Measured depth of water overlying sediment at sample time, not corrected for tides, in meters 
DEPTH 
Depth in meters 
Measured depth of water overlying sediment at sample time, not corrected for tides, in meters 
DEPTH_M 
Depth in meters 
Measured depth of water overlying sediment at sample time, not corrected for tides, in meters 
DESCRIPTIO 
Description 
Verbal description of the samples texture and lithology 
DEVICE 
Sampling device 
Device used to collect the sample 
DOMINANT_L 
Dominant lithology 
Description of the primary (i.e. major) lithology 
DPTH_CODE 
Depth code 
Description of the depth below the sedimentwater interface from which the sample was collected 


FID 
Feature identifier 
ESRI internal feature number 
FIELDID 
Field identifier 
Sample name or number as assigned in the field 
FIELD_ID 
Field identifier 
Sample name or number as assigned in the field 
FINES 
Fines (silt + clay or mud) 
Percent dry weight of the sample reported in both the silt and clay fractions (i.e. silt plus clay) 
FINES_SIL 
Fines (silt + clay or mud) 
Percent dry weight of the sample reported in both the silt and clay fractions (i.e. silt plus clay) 
FOLK_GSM 
Folk's gsm classification 
Folk (1974) classification scheme for gravel, sand, and mud 
FOLK_SZC 
Folk's szc classification 
Folk (1974) classification scheme for sand, silt, and clay 
FROM_PHI 
From phi 
Largest particle size measured, in phi units 


GRAINMED 
Grain median 
Median grain size in millimeters 
GRAINQ1 
Grain quartile 1 
First quartile of the grain size curve in percent 
GRAINQ2 
Grain quartile 2 
Second quartile of the grain size curve 
GRAINQ3 
Grain quartile 3 
Third quartile of the grainsize curve 
GRAVEL 
Gravel 
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; 1 phi and larger) 
GRAVEL_PCT 
Gravel 
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; 1 phi and larger) 
GROUP 
Group 
A number assigned to data based on source 


ID 
Identifier 
Sample or station name 


KURTOSIS 
Kurtosis 
Kurtosis (degree of curvature near the mode) of the grain size distribution 


LATITUDE 
Latitude 
Latitude in decimaldegrees (south latitudes are depicted by negative values) 
LENGTH_CM 
Length in cm 
Core length in centimeters 
LITHOLOGY 
Lithology 
General lithologic description; may be the verbal equivalent of a classification scheme 
LITHOLOG_D 
Lithologic description 
Verbal description of the bottom sediment lithology 
LOCAL_ID 
Local Identifier 
Original name (usually a numeric assigned by a scientist) used to identify samples 
LOI 
Loss on ignition 
Percent weight loss upon heating to 500 C 
LONGITUDE 
Longitude 
Longitude in decimaldegrees (west longitudes are depicted by negative values) 


MEDIAN 
Median 
Middle point in the grain size distribution in phi units 
MEDIAN_PHI 
Median 
Middle point in the grain size distribution in phi units 
MEDIAN_MM 
Median 
Middle point in the grain size distribution in millimeters 
MEAN 
Mean 
Average value in the grain size distribution in phi units 
MEAN_PHI 
Mean 
Average value in the grain size distribution in phi units 
MODE1CLASS 
Mode 1 class 
First mode (particle size that occurs the most number of times) in phi units 
MODE1FREQ 
Mode
1 frequency 
Modal strength of the first mode in percent 
MODE2CLAS 
Mode 2 class 
Second mode in phi units 
MODE2FREQ 
Mode 2 frequency 
Modal strength of the second mode in percent 
MODE3CLAS 
Mode
3 class 
Third mode in phi units 
MODE3FREQ 
Mode
3 frequency 
Modal strength of the third mode in percent 
MODE_1_CLA 
Mode 1 class 
First mode (particle size that occurs the most number of times) in phi units 
MODE_1_STR 
Mode 1 strength 
Modal strength of the first mode in percent 
MODE_2_CLA 
Mode 2 class 
Second mode in phi units 
MODE_2_STR 
Mode 2 strength 
Modal strength of the second mode in percent 
MODE_3_CLA 
Mode
3 class 
Third mode in phi units 
MODE_3_STR 
Mode
3 strength 
Modal strength of the third mode in percent 
MONTH_ANAL 
Month analyzed 
Month during which sample was analyzed 
MONTH_COLL 
Month collected 
Month during which sample was collected 
MUD 
Mud 
Percent dry weight of silt plus clay in sample 


NAI_ID 
NAI identifier 
Numeric assigned by Normandeau Associates, Inc. to distinguish dredging projects 
NAI_DREDG 
NAI event 
Dredge event identifier number assigned by Normandeau Associates, Inc. (ties event to a project) 
NODCREF 
NODC code 
Code assigned by the National Oceanographic Data Center to assign records to a source 
NMODES 
Number of modes 
Number of modes 
NO_OF_MOD 
Number of modes 
Number of modes 


ORIG_PREC 
Original precision 
Precision of location measurement 


PHI_STEP 
Phi step 
Phi interval used in analysis (e.g. full phi, half phi) 
PHIM11 
11 Phi 
Weight percent of the sample in the 11 phi fraction (nominal diameter of particles greater than or equal to 2048 mm) 
PHIM10 
10 Phi 
Weight percent of the sample in the 10 phi fraction (nominal diameter of particles greater than or equal to 1024 mm, but less than 2048 mm) 
PHIM9 
9 Phi 
Weight percent of the sample in the 9 phi fraction (nominal diameter of particles greater than or equal to 512 mm, but less than 1024 mm) 
PHIM8 
8 Phi 
Weight percent of the sample in the 8 phi fraction (nominal diameter of particles greater than or equal to 256 mm, but less than 512 mm) 
PHIM7 
7 Phi 
Weight percent of the sample in the 7 phi fraction (nominal diameter of particles greater than or equal to 128 mm, but less than 256 mm) 
PHIM6 
6 Phi 
Weight percent of the sample in the 6 phi fraction (nominal diameters of particles greater than or equal to 64 mm, but less than 128 mm) 
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 
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 
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 
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 
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) 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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); clay 
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); clay 
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 mm, but less than 0.001 mm) 
PHI_12 
12 Phi 
Weight percent of the sample in the 12 phi fraction (nominal diameter of particles greater than or equal to 0.25 microns, but less than 0.5 microns) 
PHI_13 
13 Phi 
Weight percent of the sample in the 13 phi fraction (nominal diameter of particles greater than or equal to 0.125 microns, but less than 0.25 microns) 
PHI_14 
14 Phi 
Weight percent of the sample in the 14 phi fraction (nominal diameters of particles greater than or equal to .0625 microns, but less than 0.125 microns) 
PHI_15 
15 Phi 
Weight percent of the sample in the 15 phi fraction (nominal diameter of particles greater than or equal to 0.031 microns, but less than 0.0625 microns) 
PHI_16 
16 Phi 
Weight percent of the sample in the 16 phi fraction (nominal diameter of particles greater than or equal to 0.016 microns, but less than 0.031 microns) 
PHI_17 
17 Phi 
Weight percent of the sample in the 17 phi fraction (nominal diameter of particles greater than or equal to 0.008 microns, but less than 0.016 microns) 
PHI_18 
18 Phi 
Weight percent of the sample in the 18 phi fraction (nominal diameter of particles greater than or equal to 0.004 microns, but less than 0.008 microns) 
PHI_19 
19 Phi 
Weight percent of the sample in the 19 phi fraction (nominal diameter of particles greater than or equal to 0.002 microns, but less than 0.004 microns) 
PHI_20 
20
Phi 
Weight percent of the sample in the 20 phi fraction (nominal diameter of particles greater than or equal to 0.001 microns, but less than 0.002 microns) 
PHI_21 
21
Phi 
Weight percent of the sample in the 21 phi fraction (nominal diameter of particles greater than or equal to 0.0005 microns, but less than 0.001 microns 
PHI_22 
22
Phi 
Weight percent of the sample in the 22 phi fraction (nominal diameter of particles greater than or equal to 0.00025 microns, but less than 0.0005 microns 
PRIMARY_LI 
Primary lithology 
Dominant or major lithology 
PROJECT 
Project identifier 
Project under which samples were taken 
PROJ_NAME 
Project name 
Project under which samples were taken, or data generated (i.e. NOS Digital Database); sometimes indicates more specific area 
PROJECTID 
Project identifier 
Project under which samples were taken, or data generated (i.e. NOS Digital Database); sometimes indicates more specific area 


Q1_MM 
Quartile 1 
First quartile of the grain size curve in millimeters 
Q2_MM 
Quartile
2 
Second quartile of the grain size curve in millimeters 
Q3_MM 
Quartile
3 
Third quartile of the grainsize curve in millimeters 


REFERENCE 
Reference 
Short citation consisting of the author and year of publication 
REGFILE 
Regulatory file 
Regulatory file number 
REQUESTER 
Requester 
Name of Principle Investigator or designee requesting analysis 


SAMPLE 
Sample 
Name used to identify samples 
SAMPLE 
Sample identifier 
Name used to identify samples 
SAND 
Sand 
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) 
SAND_PCT 
Sand 
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) 
SECONDARY_ 
Secondary lithology 
Description of the secondary (i.e. minor) lithology 
SECOND_LIT 
Secondary lithology 
Description of the secondary (i.e. minor) lithology 
SEDENV 
Sedimentary environment 
Verbal description of the sediment texture and depositional environment 
SEDCLASS 
Classification 
Sediment description based on a rigorous definition 
SED_CLASS 
Classification 
Sediment description based on a rigorous definition
(usually Shepard (1954)) as modified by Schlee (1973) 
SEQ 
Sequence 
Sequential number identifying a record 
SEQUENCE_# 
Local row number 
Sequential identification number, generated by the database (Excel) as the data were entered; gaps in these sequential numbers are present 
SERIES_ID 
Series identifier 
Number assigned to a transect along which samples were collected 
SHAPE 
Shape 
ESRI feature geometry 
SHEPARD_CL 
Shepard classification 
Classification of the sediment size distribution based on a scheme devised by Shepard (1954) 
SHEPARD_SZC 
Shepard's szc classification 
Shepard (1954) classification scheme for sand, silt, and clay 
SHIP 
Ship 
Vessel used to perform fieldwork 
SHIP_CRUIS 
Ship and cruise 
Name assigned to identify the ship and cruise during which the data were collected 
SILT 
Silt 
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) 
SILT_PCT 
Silt 
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) 
SITE 
Site 
Unique identifier assigned to each originally sample location by the scientist 
SIZE_TECH 
Size analysis techniques 
General description of the particlesize analysis techniques used 
SKEWNESS 
Skewness 
Skewness (deviation from symmetrical form) of the grain size distribution 
SMPLNG_DEV 
Sampling device 
Device used to collect the sample 
SOIL 
Soil 
Dominant soil class 
SOUND_METH 
Sounding method 
Method used to ascertain depth 
SOUNDING_M 
Sounding in meters 
Water depth in meters 
SOURCE 
Source reference 
Bibliographic reference in which the data were originally published, or the organization that produced the unpublished data. 
SOURCEID 
Source identifier 
Author and year of source publication 
SPECIFIC_L 
Specific location 
Specific geographic area where the samples were collected 
STATE 
State 
State adjacent to the area where sample was collected 
STATION 
Station 
Identifier assigned to each sampling station 
STATION_ID 
Station identifier 
Identifier assigned to each sampling station 
STDDEV 
Standard deviation 
Standard deviation (sorting; root mean square of the deviations) of the grain size distribution in phi units 
STDEV 
Standard deviation 
Standard deviation (sorting; root mean square of the deviations) of the grain size distribution in phi units 
STDEV_SORT 
Standard deviation 
Standard deviation (sorting; root mean square of the deviations) of the grain size distribution in phi units 
STDDEV_PHI 
Standard deviation 
Standard deviation (sorting; root mean square of the deviations) of the grain size distribution in phi units 
STDEV_PHI 
Standard deviation 
Standard deviation (sorting; root mean square of the deviations) of the grain size distribution in phi units 
SURVEY 
Survey 
Number or name assigned to the survey from which the data were generated 
SYSTEM 
System 
Author and publication year of the system used to classify the sediments 


TDEPTH 
Top depth 
Depth within the core to the top of the sample, in cm 
TEXTURE 
Texture 
Verbal description of the sediment 
TIME 
Time 
Time of day when sample was collected 
TOTAL 
Total percent 
Total of the gravel, sand, silt, and clay percentages 
TO_PHI 
To phi 
Smallest particle size measured, in phi units 
T_DEPTH 
Top depth 
Top depth of the sample below the sedimentwater interface, in cm 
TYPE 
Type 
Sampling equipment used to collect sample 


USGSDB_ID 
USGS sample identifier 
Unique identification number (consisting of 2 characters and 3 numerics) generated in the sedimentation laboratory of the USGS's Woods Hole Field Center for the Atlantic Margin Texture Database 


VESSEL 
Vessel 
Ship or boat used to perform fieldwork 


WEIGHT 
Weight 
Weight of sample in grams 


YEAR 
Year 
Calender year sample collected/analyzed 
YEAR_ANAL 
Year analyzed 
Year during which sample was analyzed 
YEAR_COLL 
Year collected 
Year during which sample was collected 