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Tectonic evolution of the Tobago Trough forearc basinThe histories of configurational changes and sedimentation in the Tobago Trough, which is a modern bathymetric forearc basin of the Lesser Antilles island arc, were investigated using marine seismic data from the Tobago Trough. Special attention is given to two tectonic problems. The first is the evolution of the southeastern corner of the Caribbean as related to the finding that the early forearc basins had substantially different configurations from that of the modern forearc basin. The second is the interaction between the forearc basin and the accretionary prism within the Lesser Antilles system. It is pointed out that Miocene and younger features of the Tobago Trough might reflect a superposition of tectonism associated with the development of the Neogene Lesser Antilles arc on an older arc system.
Document ID
19890048459
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Speed, R.
(Northwestern Univ. Evanston, IL, United States)
Torrini, R., Jr.
(Northwestern Univ. Evanston, IL, United States)
Smith, P. L.
(Northwestern University Evanston, IL, United States)
Date Acquired
August 14, 2013
Publication Date
March 10, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A35830
Funding Number(s)
CONTRACT_GRANT: NAG5-885
CONTRACT_GRANT: DE-AC21-84MC-21132
CONTRACT_GRANT: NSF INT-86-09793
CONTRACT_GRANT: NSF EAR-87-20366
Distribution Limits
Public
Copyright
Other

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