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

被引：47

作者：

Brothers, L. L. ^{[1
]}

Van Dover, C. L. ^{[2
]}

German, C. R. ^{[3
]}

Kaiser, C. L. ^{[3
]}

Yoerger, D. R. ^{[3
]}

Ruppel, C. D. ^{[1
]}

Lobecker, E. ^{[4
]}

Skarke, A. D. ^{[4
]}

Wagner, J. K. S. ^{[2
]}

机构：

[1] US Geol Survey, Woods Hole, MA 02543 USA

[2] Duke Marine Lab, Beaufort, NC 28516 USA

[3] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA

[4] Off Ocean Explorat & Res, NOAA, Durham, NH 03824 USA

来源：

GEOLOGY | 2013年 / 41卷 / 07期

基金：

美国国家科学基金会;

关键词：

BIOLOGICAL COMMUNITIES; GAS; DIAPIR; OCEAN;

D O I：

10.1130/G34217.1

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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.

引用

页码：807 / 810

页数：4

共 25 条

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