(Article of periodic en Anglais - 2013)

Document title

Holocene coastal stratigraphy, coastal changes and potential palaeoseismological implications inferred from geo-archives in Central Chile (29-32°S)

published at : Reconstructing and modeling of paleotsunami events. Multi-proxy approaches, geophysical studies, numerical simulations

Authors(s) and Affiliation(s)

MAY S.M. (1) ; PINT A. (1) ; RIXHON G. (1) ; KELLETAT D. (1) ; WENNRICH V. (2) ; BRÜCKNER H. (1) ;
(1) Inst. of Geography, Univ., Cologne, ALLEMAGNE
(2) Inst. of Geology and Mineralogy, Univ., Köln, ALLEMAGNE


Using sedimentological, geomorphological and microfaunal evidence, coeval geomorphodynamic and palaeoenvironmental changes at 4 different locations between 29° 50' and 32° 20' S in Central Chile were identified in estuary systems, coastal swamps and coastal plains. Changes of coastline elevation, morphodynamic activity and/or coastal environments, as well as the formation of a liquefaction layer took place during the last c. 400 years. Moreover, major flooding events related to strong El Niño conditions are assumed to have influenced the coastal stratigraphy by depositing high energy fluvial deposits. The results suggest that the coastal environment, geomorphology and stratigraphy are considerably influenced by tectonic processes in the study area; a relation of the presented findings to the 1730 Great Valparaíso Earthquake is assumed.


Thematical fascicle

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2013, vol. 57, no 4 [pp. 201-228]

Bibliographic references : 4 p.

Collation : 98 fig., 17 tabl., 2 annexes




Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2013/S-00154

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