Seismic stratigraphy and salt tectonics of the Alaminos Canyon area, Gulf of Mexico. /
acting as a barrier to downslope sediment transport and by
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | acting as a barrier to downslope sediment transport and by Alaminos Canyon study area represents a transition from a appear to be the dominant force in the depostional record. area, while the central region represents a transition zone As the lowering of relative sealevel ended, the transport of bathymetric trend between the slope and rise. Over 6,435 km between the two lobate canopies. The sediment isochron maps beyond the slope region. Pleistocene sealevel fluctuations deposits of sediment, thereby reducing the sediment transport depressions formed by subsidence in response to salt increased. Eustatic sealevel fluctuations during the indicate the majority of the slope is covered by a shallow influencing the direction of mass transport. The uplift of located within the eastern and western margins of the study of migrated seismic reflection profiles were analyzed to Pleistocene led to cyclic seismic depostional sequences produce two structure and two isopach maps. Maps of the salt canopy. The salt structure map indicates that the salt sheet in the western margin. Salt lobe canopies are sandy material decreased and hemipelagic sedimentation seafloor morphology, salt structure, and suprasalt sediments sediment deposition and the formation of intraslope basins. semi-continuous salt sheet in the east to a less continuous show that the salt has played an important role in the study area, intraslope basins consist of remnants of submarine canyons blocked by diapiric uplift and closed The Alaminos Canyon region is located at the change in the the salt has formed topographic lows in which sediment is The salt sheet interacted with slope sediment deposition by throughout the study area. transported from the shelf beyond the slope. Within the withdrawal. These intraslope basins have trapped thick |
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| Item Description: | "Major subject: Oceanography". Vita. |
| Physical Description: | viii, 71 leaves : illustrations, maps ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |