Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers
<p>A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a giant piston core retrieved on board R/V MARION-DUFRESNE in the North Central Gulf of Corinth. Based on previous methodological improvements, grain-size distribution and Magnetic Susceptibility Anis...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2014-02-01
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doaj-913b3209a431485ea6347c111f1037e22020-11-24T23:07:07ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2014-02-0156610.4401/ag-62265913Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layersCorina Campos0Christian Beck1Christian Crouzet2Eduardo Carrillo3Aurélien Van Welden4Efthymios Tripsanas5Universidad Simón Bolívar, Departamento de Ciencias de la Tierra, Sartenejas, Baruta,Grenoble-Alpes University, Laboratoire ISTerre, UMR CNRS 5275, CISM, Le Bourget du Lac,Grenoble-Alpes University, Laboratoire ISTerre, UMR CNRS 5275, CISM, Le Bourget du Lac,Universidad Central de Venezuela, Instituto de Ciencias de la Tierra, Caracas,Fugro Survey AS, Skøyen, Oslo,Institute of Oceanography, Hellenic Centre for Marine Research (HCMR), Anavyssos,<p>A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a giant piston core retrieved on board R/V MARION-DUFRESNE in the North Central Gulf of Corinth. Based on previous methodological improvements, grain-size distribution and Magnetic Susceptibility Anisotropy (MSA) have been analysed in order to detect earthquake-induced deposits. We indentified 36 specific layers -Homogenites+Turbidites (HmTu) - intercalated within continuous hemipelagictype sediments (biogenic or bio-induced fraction and fine-grained siliciclastic fraction). The whole succession is divided into a non-marine lower half and a marine upper half. The “events” are distributed through the entire core and they are composed of two terms: a coarse-grained lower term and an upper homogeneous fine-grained term, sharply separated. Their average time recurrence interval could be estimated for the entire MD01-2477 core. The non-marine and the marine sections yielded close estimated values for event recurrence times of around 400 yrs to 500 yrs.</p>http://www.annalsofgeophysics.eu/index.php/annals/article/view/6226HomogenitePaleoseismicityAnisotropy of Magnetic SusceptibilityCorinth |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Corina Campos Christian Beck Christian Crouzet Eduardo Carrillo Aurélien Van Welden Efthymios Tripsanas |
spellingShingle |
Corina Campos Christian Beck Christian Crouzet Eduardo Carrillo Aurélien Van Welden Efthymios Tripsanas Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers Annals of Geophysics Homogenite Paleoseismicity Anisotropy of Magnetic Susceptibility Corinth |
author_facet |
Corina Campos Christian Beck Christian Crouzet Eduardo Carrillo Aurélien Van Welden Efthymios Tripsanas |
author_sort |
Corina Campos |
title |
Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers |
title_short |
Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers |
title_full |
Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers |
title_fullStr |
Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers |
title_full_unstemmed |
Late Quaternary paleoseismic sedimentary archive from deep central Gulf of Corinth: time distribution of inferred earthquake-induced layers |
title_sort |
late quaternary paleoseismic sedimentary archive from deep central gulf of corinth: time distribution of inferred earthquake-induced layers |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
series |
Annals of Geophysics |
issn |
1593-5213 2037-416X |
publishDate |
2014-02-01 |
description |
<p>A sedimentary archive corresponding to the last 17 cal kyr BP has been studied by means of a giant piston core retrieved on board R/V MARION-DUFRESNE in the North Central Gulf of Corinth. Based on previous methodological improvements, grain-size distribution and Magnetic Susceptibility Anisotropy (MSA) have been analysed in order to detect earthquake-induced deposits. We indentified 36 specific layers -Homogenites+Turbidites (HmTu) - intercalated within continuous hemipelagictype sediments (biogenic or bio-induced fraction and fine-grained siliciclastic fraction). The whole succession is divided into a non-marine lower half and a marine upper half. The “events” are distributed through the entire core and they are composed of two terms: a coarse-grained lower term and an upper homogeneous fine-grained term, sharply separated. Their average time recurrence interval could be estimated for the entire MD01-2477 core. The non-marine and the marine sections yielded close estimated values for event recurrence times of around 400 yrs to 500 yrs.</p> |
topic |
Homogenite Paleoseismicity Anisotropy of Magnetic Susceptibility Corinth |
url |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/6226 |
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