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usSEABED: Coastal & Marine Geology Program

USGS Coastal and Marine Geology Program


Data fields for the extracted (_EXT), parsed (_PRS) and calculated (_CLC) data files of usSEABED

More complete information is given in the usSEABED data publications. [back]



Sample information Site name
Water depth
Sampler type
Sample top
Sample bottom
Relational keys and types of source data  Relational key to source dataset
Relational key to site
Relational key to (sub)sample
Source data type
Textural information Gravel
Statistics & classification Grainsize sorting
Shepard 1954 class
Folk et al. 1974 class
Dominant component Seafloor class
Class membership
Seafloor information Rock index (how hard is the sea floor?)
Weed index (how much of the sample/seafloor is plants?)
Munsell code (what color is the sediment?)
Geochemical information Carbonate
Organic carbon
Geophysical information Log shear strength
P-wave velocity
Other information Roughness
Log critical shear stress


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