Modeling Soil Properties on the Continental Slope, Gulf of Mexico

Hooper, James R.; Dunlap, Wayne A.

doi:10.4043/5956-ms

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The GOM normally consolidated soil stratigraphy information is presented in Fig. 5,6,7 It would have been useful to have had PCPT soundings at this site to further evaluate the higher insitu vane measurements. This figure shows the liquidity index (LI), vertical effective stress (σ ' v ) and design undrained shear strength (s u ) profiles.…”

Section: Comparison Of Stratigraphiesmentioning

confidence: 99%

Deepwater Soil Properties and Their Impact on the Geotechnical Program

Quirós

Little

2003

All Days

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The sometimes unpredictable and highly variable nature of soil conditions in deepwater regions must be recognized in planning geotechnical site investigations. Examples of four different soil stratigraphies in deepwater are presented to demonstrate the variability and peculiar nature of some sediments and how important it is to plan for comprehensive programs both in the field and in the laboratory phases of a geotechnical site investigation. The authors will show how reliance on correlations based on index properties and failing to understand their limitations can lead to misinterpretation of soil properties.

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Section: Comparison Of Stratigraphiesmentioning

confidence: 99%

Deepwater Soil Properties and Their Impact on the Geotechnical Program

Quirós

Little

2003

All Days

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Gassy sediment occurrence and properties: Northern Gulf of Mexico

Anderson

Bryant

1990

Geo-Marine Letters

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Free gas is ubiquitous at shallow sediment depths of tt~e northern margin of the Gulf of Mexico. Gassy sediment patches are between 250 and 500 m in horizontal size. Often the gassy layers are within 100 m from the sea floor and arc only a few meters thick. Both biogenic and Ihermogenic gas hydrates have been recove,-ed. Stability values of temperature and pressure indicate that hydrates can exist in water depths less than 500 m. Gassy sediment geoacouslic parameter values ark not well constrained because of a lack of concurrent measurements of acoustic properties and sediment gas content. For Gulf of Mexico gassy sediment, some reported in situ values of sound speed are reduced hy an order of magnitude below values for watcr saturated sediments. More commonly, sound speed is reduced from water saturated sediment values by only 15 to 50 percent.

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