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Les pyroclastites du sud-ouest du lac de Van (Anatolie orientale, Turquie) : implications dans la paléohydrographie régionale

The pyroclastites around southwestern part of Van Lake (Eastern Anatolia, Turkey) : implications on the regional palaeohydrography
Damase Mouralis, Catherine Kuzucuoglu, Ebru Akköprü, Ali Fuat Dogu, Stéphane Scaillet, Aurélien Christol, Halil Zorer, Daniel Brunstein, Monique Fort and Hervé Guillou
p. 425-441

Abstracts

Located in eastern Anatolia (Turkey), Lake Van is the fourth largest lake in the world. Along the banks of the lake, several lake terraces record Pleistocene variations of the lake levels. In the terraces, the lake deposits are often interbedded with pyroclastites emitted by the volcanoes located on the northern side of the lake. Our research focuses on the south-western part of the lake, where several pyroclastites interbedded with lake deposits allow establishing a regional tephrostratigraphy, which is being Ar/Ar dated. In this area, the study of the pyroclastites allows to understand the impact of volcanism on the palaeohydrography : all the valleys where filled-in with pyroclastites which induced heavy disruptions of the drainage network. Moreover, our research enlightens evidences that volcanic activity was responsible for the enclosure of the lake and that the major transgression of the lake, dated ca. 100 ka, is not only linked to changes in the water balance, but at first linked to volcanic activity.

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References

Bibliographical reference

Damase Mouralis, Catherine Kuzucuoglu, Ebru Akköprü, Ali Fuat Dogu, Stéphane Scaillet, Aurélien Christol, Halil Zorer, Daniel Brunstein, Monique Fort and Hervé Guillou, « Les pyroclastites du sud-ouest du lac de Van (Anatolie orientale, Turquie) : implications dans la paléohydrographie régionale », Quaternaire, vol. 21/4 | 2010, 425-441.

Electronic reference

Damase Mouralis, Catherine Kuzucuoglu, Ebru Akköprü, Ali Fuat Dogu, Stéphane Scaillet, Aurélien Christol, Halil Zorer, Daniel Brunstein, Monique Fort and Hervé Guillou, « Les pyroclastites du sud-ouest du lac de Van (Anatolie orientale, Turquie) : implications dans la paléohydrographie régionale », Quaternaire [Online], vol. 21/4 | 2010, Online since 01 December 2013, connection on 17 December 2017. URL : http://journals.openedition.org/quaternaire/5739 ; DOI : 10.4000/quaternaire.5739

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About the authors

Damase Mouralis

Université de Rouen - CNRS, UMR 6266 (IDEES), rue Lavoisier 76821 Mont-Saint-Aignan. Laboratoire de Géographie Physique, UMR 8591, CNRS-Université Paris1. 1 place Aristide-Briand, 92195 Meudon cedex. France. Courriel : damase.mouralis@univ-rouen.fr

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Catherine Kuzucuoglu

Laboratoire de Géographie Physique, UMR 8591, CNRS-Université Paris1. 1 place Aristide-Briand, 92195 Meudon cedex. France.

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Ebru Akköprü

Université d’Istanbul. Département de Géographie. 34452 Beyazit/Eminonu. Istanbul. Turquie.

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Ali Fuat Dogu

Université de Van, Département de Géographie. Cografya bölümü. Yüzüncü Yil Universitesi Rektörlügü - 65080 Kampüs - Van. Turquie.

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Stéphane Scaillet

Laboratoire des Sciences de l’Environnement et du Climat, UMR 1572, CEA-CNRS. LSCE-Vallée, Bât. 12, avenue de la Terrasse, 91198 Gif-sur-Yvette cedex. France

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Aurélien Christol

Laboratoire de Géographie Physique, UMR 8591, CNRS-Université Paris1. 1 place Aristide-Briand, 92195 Meudon cedex. France
Université Paris7, UMR 8586 PRODIG, Equipe DYNMIRIS. UFR GHSS, Case 7001, Université Paris7-Denis Diderot, 2 place Jussieu, 75251 Paris Cedex 05. France.

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Halil Zorer

Université de Van, Département de Géographie. Cografya bölümü. Yüzüncü Yil Universitesi Rektörlügü - 65080 Kampüs - Van. Turquie.

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Daniel Brunstein

Laboratoire de Géographie Physique, UMR 8591, CNRS-Université Paris1. 1 place Aristide-Briand, 92195 Meudon cedex. France.

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Monique Fort

Université Paris7, UMR 8586 PRODIG, Equipe DYNMIRIS. UFR GHSS, Case 7001, Université Paris7-Denis Diderot, 2 place Jussieu, 75251 Paris Cedex 05. France.

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Hervé Guillou

Laboratoire des Sciences de l’Environnement et du Climat, UMR 1572, CEA-CNRS. LSCE-Vallée, Bât. 12, avenue de la Terrasse, 91198 Gif-sur-Yvette cedex. France

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