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Abstract
Chapter from: M
66: Hydrocarbon Migration And Its Near-Surface Expression
Edited By
Dietmar Schumacher and Michael A. AbramsAuthors:
Ian R. MacDonald, J. F. Reilly, Jr., S. E. Best, R. Venkataramaiah,
R. Sassen, N. L. Guinasso, Jr., and J. Amos Geochemistry, Generation, Migration
Published 1996 as
part of Memoir 66
Copyright © 1996 The American Association of Petroleum
Geologists. All Rights Reserved.
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MacDonald,
I. R., J. F. Reilly, Jr., S. E. Best, R. Venkataramaiah, R. Sassen, N.
L. Guinasso, Jr., and J. Amos, 1996, Remote sensing inventory of active
oil seeps and chemosynthetic communities in the northern Gulf of Mexico,
in
D. Schumacher and M. A. Abrams, eds., Hydrocarbon migration and its near-surface
expression: AAPG Memoir 66, p. 27-37.
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Chapter
3
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Remote
Sensing Inventory of Active Oil Seeps and Chemosynthetic Communities in
the Northern Gulf of Mexico |
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| I. R. MacDonald
Geochemical and Environmental
Research Group
Texas A&M University
College Station, Texas,
U.S.A.
J. F. Reilly, Jr.
Enserch Exploration, Inc.,
Dallas, Texas, U.S.A.
Present address:
National Aeronautics and
Space Administration
Johnson Space Center
Houston, Texas, U.S.A.
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S. E. Best
R. Venkataramaiah
R. Sassen
N. L. Guinasso, Jr.
Geochemical and Environmental
Research Group
Texas A&M University
College Station, Texas,
U.S.A.
J. Amos
Earth Satellite Corporation
Rockville, Maryland,
U.S.A. |
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Abstract
We compiled
locations of probable oil slicks from interpretation of a Space Shuttle
photograph, a Landsat Thematic Mapper scene, three European Radar Satellite
scenes, and collections of floating oil and observations of sea floor seeps
from submarines. These locations were ranked according to recurrence of
evidence for natural oil seepage among the various data sets. As a result,
we have verified 43 biological communities that depend on hydrocarbon seeps
and 63 locations where remote sensing data indicate that sea floor sources
are capable of producing perennial oil slicks.
Monitoring individual seeps
over time contributes to understanding the natural loading of hydrocarbons
in the marine environment. The seeps also form a natural test bed for development
of sensors and techniques to detect oil floating on the sea. Remote detection
of natural seepage extends the probable range of chemosynthetic communities
dependent on hydrocarbon seepage in the northern Gulf of Mexico. This technique
for detecting areas of macroseepage is potentially applicable to hydrocarbon
basins in which oil production is in an earlier stage of development than
the Gulf of Mexico. |
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