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dc.contributor.authorRamana, M.V.
dc.contributor.authorRamprasad, T.
dc.contributor.authorGrahm, B.
dc.contributor.authorWelsh, R.
dc.contributor.authorPathak, M.C.
dc.date.accessioned2009-01-25T06:19:41Z
dc.date.available2009-01-25T06:19:41Z
dc.date.issued1995
dc.identifier.citationCaribbean Marine Studies, 30-38p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/2388
dc.description.abstractAbout 2400 line km of magnetic and bathymetric data were collected between the western margin of Jamaica and the eastern margin of Belize covering the Cayman Trough. The echograms show rugged topography between 80 degrees W and 85 degrees W longitude. The mid-Cayman spreading centre is characterized by a rift valley with 4000 m depth. Sea-floor spreading-type linear magnetic anomalies have been observed in the Cayman Trough. A synthetic sea-floor-spreading model is generated across the spreading axis with crustal block thickness of 1 km and a susceptibility of 0.002 cgs units. The anomaly numbers 1 to 8 have been identified on the west and anomalies 1 to 5A on the east of the spreading axis which is located around 81 degrees 39'W. The half-spreading rates of 10 mm yr sup(-1) (0-2.47 Ma) and 20 mm yr sup(-1) (2.47-27.74 Ma) are estimated in the Cayman Trough. The crust west of anomaly 8 appears to form the Continent Ocean Boundary off Belize. It is suggested that the opening of the Cayman Trough was initiated prior to late Oligocene
dc.language.isoen
dc.publisherInstitute of Marine Affairs, Trinidad and Tobago
dc.rightsCopyright [1995]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectmagnetic anomalies
dc.subjectbathymetry
dc.subjectspreading centres
dc.subjectoligocene
dc.titleMagnetic studies in the Cayman Trough, Caribbean Sea
dc.typeJournal Article


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