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Pockmarks: self-scouring seep features?

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Laura L. Brothers, Joseph T. Kelley, Daniel F. Belknap, Walter A. Barnhardt, and Peter O. Koons, 2011, Pockmarks: self-scouring seep features?: ICGH.

Summary

Pockmarks, or seafloor craters, occur worldwide in a variety of geologic settings and are often associated with fluid discharge. The mechanisms responsible for pockmark preservation, and pockmarks? relation to active methane venting are not well constrained. Simple numerical simulations run in 2-and 3-dimensions, and corroborated by flume tank experiments, indicate turbulence may play a role in pockmark maintenance, and, potentially, in pockmark excavation. Morphological analysis of the pockmarks indicates an abundance of flat-bottomed and/or elongated pockmarks. Pockmarks transition into furrows as the bay narrows and tidal flow is enhanced, providing unmistakable evidence of post-formation evolution. We hypothesize that some pockmarks [...]

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Type Scheme Key
local-index unknown 70159030
local-pk unknown 70159030

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conference7th International Conference on Gas Hydrates
languageEnglish
citationTypeConference Paper

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