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(Article of periodic en Anglais - 2013)

Document title

Geochemical and micropaleontological investigations of tsunamigenic layers along the Thracian Coast (Northern Aegean Sea, Greece)

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

Authors(s) and Affiliation(s)

MATHES-SCHMIDT M. (1) ; SCHWARZBAUER J. (2) ; PAPANIKOLAOU I. (3) ; SYBERBERG F. (1) ; THIELE A. (1) ; WITTKOPP F. (2) ; REICHERTER K. (1) ;
(1) Inst. of Neotectonics and Natural Hazards, RWTH Univ., Aachen, ALLEMAGNE
(2) Inst. of Geology and Geochemistry of Petroleum and Coal, RWTH Univ., Aachen, ALLEMAGNE
(3) Lab. of Mineralogy & Geology, Dept. of Geological Sciences and Atmospheric Environment, Agricultural Univ., Athens, GRECE

Abstract

In order to obtain more information on coastal evolution and the preservation of tsunamigenic and/or storm layers, several shallow boreholes were carried out along the shoreline of the Thracian Sea (northern Greece). In flat and southerly exposed coastal areas, sedimentary sequences provide evidence for past high-energy sedimentary events, which are interpreted as tsunamites. Earthquakes at the western end and along the northern strand of the North Anatolian Fault Zone (NAFZ) in the North Aegean Basin cause regular tsunamis. Several Holocene high-energy event layers have been found intercalated in clayey terrestrial, lagoonal, and sandy beach deposits. Through radiocarbon dating, geochemical, micropaleontological and sedimentological investigations, at least 2 possible events can be defined. However, the event layers cannot be assigned to any individual historic seismic or landslide event. The AA. also introduce organic geochemical proxies as a tool for distinguishing tsunamigenic layers from normal lagoonal sediments

Source

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. 5-27]

Bibliographic references : 2 p.

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

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2013/S-00153

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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