2006
DOI: 10.1190/1.2202667
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Seafloor reflectivity—An important seismic property for interpreting fluid/gas expulsion geology and the presence of gas hydrate

Abstract: A bottom-simulating reflection (BSR) is a seismic reflectivity phenomenon that is widely accepted as indicating the base of the gas-hydrate stability zone. The acoustic impedance difference between sediments invaded with gas hydrate above the BSR and sediments without gas hydrate, but commonly with free gas below, are accepted as the conditions that create this reflection. The relationship between BSRs and marine gas hydrate has become so well known since the 1970s that investigators, when asked to define the … Show more

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Cited by 80 publications
(74 citation statements)
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“…This relation between fluid outflow, slumps and mud volcano are well discussed in [30]. Moreover, this hypothesis is supported by laboratory experiments and direct observation in different studied areas, indeed some authors suggest that intense hot fluid fluxes change the thermodynamic of sediments moving up the base of gas hydrate stability zone [16,17]. This model of fluid escapes can be applied to the Mud Volcano Vault.…”
Section: Gas Hydrate Versus Geological Featuressupporting
confidence: 50%
See 2 more Smart Citations
“…This relation between fluid outflow, slumps and mud volcano are well discussed in [30]. Moreover, this hypothesis is supported by laboratory experiments and direct observation in different studied areas, indeed some authors suggest that intense hot fluid fluxes change the thermodynamic of sediments moving up the base of gas hydrate stability zone [16,17]. This model of fluid escapes can be applied to the Mud Volcano Vault.…”
Section: Gas Hydrate Versus Geological Featuressupporting
confidence: 50%
“…Probably, the free gas can accumulate because the pore space of a thin layer of sediments above the BSR are partially filled by gas hydrate that acts as seal. The presence of the free gas zone and absence of gas hydrate was already observed by several authors [17,59] in similar environment.…”
Section: Gas Hydrate Versus Geological Featuresmentioning
confidence: 64%
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“…Conversion of NGH naturally concentrates low-salinity water within sediments that could be released into the water column when buoyancy exceeds hydrostatic and lithostatic retention and thus initiates upwards migration. Once at the seafloor, rising gas and water shape seafloor morphology according to the emission velocity (Roberts et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…Locating and quantifying seeps on the Gulf of Mexico (GOM) is of interest of both the scientific community and oil and gas industry because seeps supply organic carbon to the benthos and water column, they can be indicative of the extent of mature oil sources on the slope, and seeps are associated with interesting diverse biological and geological features [2,3].…”
Section: Introductionmentioning
confidence: 99%