thumbnail

Evidence for extensive methane venting on the southeastern U.S. Atlantic margin

Geology

By:
, , , , , , , , and
DOI: 10.1130/G34217.1

Links

Abstract

We present the first evidence for widespread seabed methane venting along the southeastern United States Atlantic margin beyond the well-known Blake Ridge diapir seep. Recent ship- and autonomous underwater vehicle (AUV)–collected data resolve multiple water-column anomalies (>1000 m height) and extensive new chemosynthetic seep communities at the Blake Ridge and Cape Fear diapirs. These results indicate that multiple, highly localized fluid conduits punctuate the areally extensive Blake Ridge gas hydrate province, and enable the delivery of significant amounts of methane to the water column. Thus, there appears to be an abundance of seabed fluid flux not previously ascribed to the Atlantic margin of the United States.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Evidence for extensive methane venting on the southeastern U.S. Atlantic margin
Series title:
Geology
DOI:
10.1130/G34217.1
Volume
41
Issue:
7
Year Published:
2013
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Woods Hole Coastal and Marine Science Center
Description:
4 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geology
First page:
807
Last page:
810