METHANE-RICH PLUMES ON THE CAROLINA CONTINENTAL RISE - ASSOCIATIONS WITH GAS HYDRATES

被引：3

作者：

PAULL, CK ^{[1
]}

USSLER, W ^{[1
]}

BOROWSKI, WS ^{[1
]}

SPIESS, FN ^{[1
]}

机构：

[1] SCRIPPS INST OCEANOG,MARINE PHYS LAB,LA JOLLA,CA 92093

来源：

GEOLOGY | 1995年 / 23卷 / 01期

关键词：

D O I：

10.1130/0091-7613(1995)023<0089:MRPOTC>2.3.CO;2

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Seafloor venting of microbial gases occurs at 2167 m water depth over the Blake Ridge diapir. Gas-rich plumes were identified acoustically in the water column up to 320 m above a pockmarked sea floor associated,vith active chemosynthetic biological communities. Plumes and venting fluids emanate from near a small fault that extends downward toward a dome in the bottom-simulating reflector, indicating that fluid and/or gas migration is associated with gas hydrate-bearing sediment below. These plumes might be caused by gas bubbles or buoyant clumps of gas hydrate that float upward from the seafloor.

引用

页码：89 / 92

页数：4

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