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| Titel |
Seismoturbidite record as preserved at core sites at the Cascadia and Sumatra–Andaman subduction zones |
| VerfasserIn |
J. R. Patton, C. Goldfinger, A. E. Morey, C. Romsos, B. Black, Y. Djadjadihardja, Udrekh |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 4 ; Nr. 13, no. 4 (2013-04-04), S.833-867 |
| Datensatznummer |
250018402
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| Publikation (Nr.) |
 copernicus.org/nhess-13-833-2013.pdf |
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| Zusammenfassung |
| Turbidite deposition along slope and trench settings is evaluated for the
Cascadia and Sumatra–Andaman subduction zones. Source proximity, basin
effects, turbidity current flow path, temporal and spatial earthquake rupture, hydrodynamics, and topography all likely play roles in
the deposition of the turbidites as evidenced by the vertical structure of
the final deposits. Channel systems tend to promote low-frequency components
of the content of the current over longer distances, while more proximal
slope basins and base-of-slope apron fan settings result in a turbidite
structure that is likely influenced by local physiography and other factors.
Cascadia's margin is dominated by glacial cycle constructed pathways which
promote turbidity current flows for large distances. Sumatra margin pathways
do not inherit these antecedent sedimentary systems, so turbidity currents are more
localized. |
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