Main Title |
Global Flux of Methane from Shallow Submarine Sediments. |
Author |
Hovland, M. ;
Judd, A. G. ;
Burke, R. A. ;
|
CORP Author |
Environmental Research Lab., Athens, GA. ;Norske Stats Oljeselskap A/S, Stavanger. ;Sunderland Univ. (England). School of the Environment. ;Texas A and M Univ., College Station. Geochemical and Environmental Research Group. |
Publisher |
c1993 |
Year Published |
1993 |
Report Number |
EPA/600/J-93/280; |
Stock Number |
PB93-222388 |
Additional Subjects |
Methane ;
Seeps ;
Marine environments ;
Natural gas deposits ;
Seepage ;
Case studies ;
Santa Barbara Channel ;
Mexico Gulf ;
Cape Lookout Bight ;
North Sea ;
Black Sea ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-222388 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
22p |
Abstract |
The seepage of methane through the seabed of the world's continental shelves is considered. Methane may be generated by both bacterial and thermogenic processes acting on the complex organic matter stored in the seabed. Because these processes are ubiquitous, occurrences of gas and gas seepages are probably widespread. Although numerous observations of methane seepages from shallow marine sources have been reported, there are few documented flux measurements. A rough estimation of the global flux suggests that between 8 and 65 Tg of methane passes through the seabed of the continental shelves annually. If a significant proportion of this passes through the water column and into the atmosphere, the oceans may represent a more significant source of methane than has been suggested previously. |