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Service Description: This map provides an overview of the loose sediment types in the Gulf and is a guide to their mobility under waves and currents, as well as to the physical factors for benthic animals. Sediment can be classified in a variety of ways. One method, known as the Folk Codes (Folk, 1974) divides sediments into mud, gravel and sand, depending on how big the particles are. Sand, coarse mud (silt), and fluid muds are unstable in areas affected by waves and currents. Gravel and stiff mud are unstable only in extreme weather conditions. Muddy bottom areas on slopes of 2° or more are prone to sliding and mass failure caused by gravity and internal sediment pore-water pressures. The data for this analysis comes from a subset of USGS's usSEABED called dbSEABED.

Map Name: Seafloor Substrates - Loose Sediments

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Description: This map provides an overview of the loose sediment types in the Gulf and is a guide to their mobility under waves and currents, as well as to the physical factors for benthic animals. Sediment can be classified in a variety of ways. One method, known as the Folk Codes (Folk, 1974) divides sediments into mud, gravel and sand, depending on how big the particles are. Sand, coarse mud (silt), and fluid muds are unstable in areas affected by waves and currents. Gravel and stiff mud are unstable only in extreme weather conditions. Muddy bottom areas on slopes of 2° or more are prone to sliding and mass failure caused by gravity and internal sediment pore-water pressures.

Copyright Text: Chris Jenkins, Institute of Arctic and Alpine Research, University of Colorado at Boulder

Spatial Reference: 102100  (3857)


Single Fused Map Cache: false

Initial Extent:

XMin: -1.142738115783653E7
YMin: 1185661.340852258
XMax: -7771890.513521906
YMax: 4132067.233664046
Spatial Reference: 102100  (3857)

Full Extent:

XMin: -1.1131949079293922E7
YMin: 1860376.9812916156
XMax: -8794239.772701908
YMax: 3697855.3303508624
Spatial Reference: 102100  (3857)

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info:

Title: Seafloor Substrates - Loose Sediments
Author: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Comments: This map provides an overview of the loose sediment types in the Gulf and is a guide to their mobility under waves and currents, as well as to the physical factors for benthic animals. Sediment can be classified in a variety of ways. One method, known as the Folk Codes (Folk, 1974) divides sediments into mud, gravel and sand, depending on how big the particles are. Sand, coarse mud (silt), and fluid muds are unstable in areas affected by waves and currents. Gravel and stiff mud are unstable only in extreme weather conditions. Muddy bottom areas on slopes of 2° or more are prone to sliding and mass failure caused by gravity and internal sediment pore-water pressures. The data for this analysis comes from a subset of USGS's usSEABED called dbSEABED.
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Keywords: dbSEABED,benthic,marine,habitat,grain size,seabed,seafloor,sediment data,texture,INSTAAR
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TextAntialiasingMode: Force

Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true



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