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The nature, distribution, and origin of gas hydrate in the Chile Triple Junction region

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The nature, distribution, and origin of gas hydrate in the Chile Triple Junction region; 1996; Article; Journal; Earth and Planetary Science Letters; Brown, K. M.; Bangs, N. L.; Froelich, P. N.; Kvenvolden, K. A.

Summary

A bottom simulating reflector (BSR) is regionally distributed throughout much of the Chile Triple Junction (CTJ) region. Downhole temperature and logging data collected during Ocean Drilling Program (ODP) Leg 141 suggest that the seismic BSR is generated by low seismic velocities associated with the presence of a few percent free gas in a ??? 10 m thick zone just beneath the hydrate-bearing zone. The data also indicate that the temperature and pressure at the BSR best corresponds to the seawater/methane hydrate stability field. The origin of the large amounts of methane required to generate the hydrates is, however, problematic. Low total organic carbon contents and low alkalinities argue against significant in situ biogenic methanogenesis, [...]

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Type Scheme Key
local-index unknown 70018545
local-pk unknown 70018545
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/0012-821X(95)00243-6
series unknown Earth and Planetary Science Letters

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citationTypeArticle
journalEarth and Planetary Science Letters
languageEnglish
parts
typevolume
value139
typeissue
value3-4

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