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Geochemical constraints on the distribution of gas hydrates in the Gulf of Mexico

Geo-Marine Letters

By:
, , , , and
https://doi.org/10.1007/s00367-005-0001-3

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Abstract

Gas hydrates are common within near-seafloor sediments immediately surrounding fluid and gas venting sites on the continental slope of the northern Gulf of Mexico. However, the distribution of gas hydrates within sediments away from the vents is poorly documented, yet critical for gas hydrate assessments. Porewater chloride and sulfate concentrations, hydrocarbon gas compositions, and geothermal gradients obtained during a porewater geochemical survey of the northern Gulf of Mexico suggest that the lack of bottom simulating reflectors in gas-rich areas of the gulf may be the consequence of elevated porewater salinity, geothermal gradients, and microbial gas compositions in sediments away from fault conduits. 

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Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Geochemical constraints on the distribution of gas hydrates in the Gulf of Mexico
Series title:
Geo-Marine Letters
DOI:
10.1007/s00367-005-0001-3
Volume:
25
Issue:
5
Year Published:
2005
Language:
English
Publisher:
Springer
Contributing office(s):
Woods Hole Coastal and Marine Science Center
Description:
8 p.
First page:
273
Last page:
280
Other Geospatial:
Gulf of Mexico