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| Titel |
Mass wasting at the base of the south central Chilean continental margin: the Reloca Slide |
| VerfasserIn |
D. Völker, W. Weinrebe, J. H. Behrmann  , J. Bialas, D. Klaeschen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: 4th EGU Alexander von Humboldt Conference "The Andes: Challenge for Geosciences" ; Nr. 22 (2009-12-14), S.155-167 |
| Datensatznummer |
250014740
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| Publikation (Nr.) |
 copernicus.org/adgeo-22-155-2009.pdf |
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| Zusammenfassung |
| Offshore south central Chile (35° S–42° S), the morphology of the
lowermost continental slope and trench floor witnesses a voluminous
submarine mass-wasting event. The blocky slide body deposited in the Chile
Trench at 73°46´ W 35°35´ S was targeted for study during RRS JAMES
COOK Cruise JC23 and termed Reloca Slide. Its size of about 24 km3, its
steep and high headscarp, the spatial distribution of slide deposits and the
cohesive nature of major slide blocks make it interesting to address the
issue of tsunami generation. We have obtained seismic reflection data that
partly reveal the internal structure of the slide body. Gravity core samples
were retrieved that will allow the slide to be dated and linked to the
history of sedimentation and slope stability along this particular segment
of the Chilean convergent margin. At present we assume a Holocene age for
the sliding event. |
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