A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN
Large-scale continental tectonics of back arc (extensional) and Andean-type (compressional) environments are investigated by using the thin viscous sheet model to calculate the deformation within the continental lithosphere that is subjected to horizontal forces on its plate boundaries and to basal...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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1989
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| _version_ | 1826289519492595712 |
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| author | Wdowinski, S Oconnell, R England, P |
| author_facet | Wdowinski, S Oconnell, R England, P |
| author_sort | Wdowinski, S |
| collection | OXFORD |
| description | Large-scale continental tectonics of back arc (extensional) and Andean-type (compressional) environments are investigated by using the thin viscous sheet model to calculate the deformation within the continental lithosphere that is subjected to horizontal forces on its plate boundaries and to basal drag from the asthenospheric flow beneath. Calculations are compared with observations from the Andes and the Aegean; our results explain some of the features of the deformation in these regions that have heretofore not been explained by other models. Our model predicts that in a compressional environment a broad region of uplifted topography will tend to develop above a more steeply dipping slab (30°), rather than above a shallower slab (10°-15°); this is in accord with observations in the various segments of the central Andes. For an extensional environment, the model predicts that a zone of compression can develop near the trench and that extensional strain rate can increase with distance from the trench, as is observed in the Aegean. -from Authors |
| first_indexed | 2024-03-07T02:30:07Z |
| format | Journal article |
| id | oxford-uuid:a6f404ca-cc6c-47da-844e-51700d93e2d2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:30:07Z |
| publishDate | 1989 |
| record_format | dspace |
| spelling | oxford-uuid:a6f404ca-cc6c-47da-844e-51700d93e2d22022-03-27T02:51:01ZA CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEANJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a6f404ca-cc6c-47da-844e-51700d93e2d2EnglishSymplectic Elements at Oxford1989Wdowinski, SOconnell, REngland, PLarge-scale continental tectonics of back arc (extensional) and Andean-type (compressional) environments are investigated by using the thin viscous sheet model to calculate the deformation within the continental lithosphere that is subjected to horizontal forces on its plate boundaries and to basal drag from the asthenospheric flow beneath. Calculations are compared with observations from the Andes and the Aegean; our results explain some of the features of the deformation in these regions that have heretofore not been explained by other models. Our model predicts that in a compressional environment a broad region of uplifted topography will tend to develop above a more steeply dipping slab (30°), rather than above a shallower slab (10°-15°); this is in accord with observations in the various segments of the central Andes. For an extensional environment, the model predicts that a zone of compression can develop near the trench and that extensional strain rate can increase with distance from the trench, as is observed in the Aegean. -from Authors |
| spellingShingle | Wdowinski, S Oconnell, R England, P A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN |
| title | A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN |
| title_full | A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN |
| title_fullStr | A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN |
| title_full_unstemmed | A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN |
| title_short | A CONTINUUM MODEL OF CONTINENTAL DEFORMATION ABOVE SUBDUCTION ZONES - APPLICATION TO THE ANDES AND THE AEGEAN |
| title_sort | continuum model of continental deformation above subduction zones application to the andes and the aegean |
| work_keys_str_mv | AT wdowinskis acontinuummodelofcontinentaldeformationabovesubductionzonesapplicationtotheandesandtheaegean AT oconnellr acontinuummodelofcontinentaldeformationabovesubductionzonesapplicationtotheandesandtheaegean AT englandp acontinuummodelofcontinentaldeformationabovesubductionzonesapplicationtotheandesandtheaegean AT wdowinskis continuummodelofcontinentaldeformationabovesubductionzonesapplicationtotheandesandtheaegean AT oconnellr continuummodelofcontinentaldeformationabovesubductionzonesapplicationtotheandesandtheaegean AT englandp continuummodelofcontinentaldeformationabovesubductionzonesapplicationtotheandesandtheaegean |