The geodynamic and limnological evolution of Balkan Lake Ohrid, possibly the oldest extant lake in Europe

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Bernd Wagner - , Universität zu Köln (Autor:in)
  • Paul Tauber - , Universität zu Köln (Autor:in)
  • Alexander Francke - , University of Adelaide (Autor:in)
  • Niklas Leicher - , Universität zu Köln (Autor:in)
  • Steven A. Binnie - , Universität zu Köln (Autor:in)
  • Aleksandra Cvetkoska - , Utrecht University, Nederlands Instituut voor Ecologie (NIOO-KNAW) (Autor:in)
  • Elena Jovanovska - , Justus-Liebig-Universität Gießen, Senckenberg Gesellschaft für Naturforschung (Autor:in)
  • Janna Just - , Universität zu Köln, Leibniz-Zentrum für Marine Tropenforschung (Autor:in)
  • Jack H. Lacey - , British Geological Survey (Autor:in)
  • Zlatko Levkov - , SS Cyril and Methodius University in Skopje (Autor:in)
  • Katja Lindhorst - , Christian-Albrechts-Universität zu Kiel (CAU) (Autor:in)
  • Katerina Kouli - , National and Kapodistrian University of Athens (Autor:in)
  • Sebastian Krastel - , Christian-Albrechts-Universität zu Kiel (CAU) (Autor:in)
  • Konstantinos Panagiotopoulos - , Universität zu Köln (Autor:in)
  • Arne Ulfers - , Leibniz-Institut für Angewandte Geophysik (Autor:in)
  • Dušica Zaova - , SS Cyril and Methodius University in Skopje (Autor:in)
  • Timme H. Donders - , Utrecht University (Autor:in)
  • Andon Grazhdani - , University of Tirana (Autor:in)
  • Andreas Koutsodendris - , Universität Heidelberg (Autor:in)
  • Melanie J. Leng - , British Geological Survey, University of Nottingham (Autor:in)
  • Laura Sadori - , University of Rome La Sapienza (Autor:in)
  • Mirko Scheinert - , Professur für Geodätische Erdsystemforschung (Autor:in)
  • Hendrik Vogel - , Universität Bern (Autor:in)
  • Thomas Wonik - , Leibniz-Institut für Angewandte Geophysik (Autor:in)
  • Giovanni Zanchetta - , University of Pisa (Autor:in)
  • Thomas Wilke - , Justus-Liebig-Universität Gießen (Autor:in)

Abstract

Studies of the upper 447 m of the DEEP site sediment succession from central Lake Ohrid, Balkan Peninsula, North Macedonia and Albania provided important insights into the regional climate history and evolutionary dynamics since permanent lacustrine conditions established at 1.36 million years ago (Ma). This paper focuses on the entire 584-m-long DEEP sediment succession and a comparison to a 197-m-long sediment succession from the Pestani site ~5 km to the east in the lake, where drilling ended close to the bedrock, to unravel the earliest history of Lake Ohrid and its basin development. 26Al/10Be dating of clasts from the base of the DEEP sediment succession implies that the sedimentation in the modern basin started at c. 2 Ma. Geophysical, sedimentological and micropalaeontological data allow for chronological information to be transposed from the DEEP to the Pestani succession. Fluvial conditions, slack water conditions, peat formation and/or complete desiccation prevailed at the DEEP and Pestani sites until 1.36 and 1.21 Ma, respectively, before a larger lake extended over both sites. Activation of karst aquifers to the east probably by tectonic activity and a potential existence of neighbouring Lake Prespa supported filling of Lake Ohrid. The lake deepened gradually, with a relatively constant vertical displacement rate of ~0.2 mm a−1 between the central and the eastern lateral basin and with greater water depth presumably during interglacial periods. Although the dynamic environment characterized by local processes and the fragmentary chronology of the basal sediment successions from both sites hamper palaeoclimatic significance prior to the existence of a larger lake, the new data provide an unprecedented and detailed picture of the geodynamic evolution of the basin and lake that is Europe’s presumed oldest extant freshwater lake.

Details

OriginalspracheEnglisch
Seiten (von - bis)1-26
Seitenumfang26
FachzeitschriftBoreas
Jahrgang52(2023)
Ausgabenummer1
PublikationsstatusVeröffentlicht - 31 Okt. 2022
Peer-Review-StatusJa

Externe IDs

ORCID /0000-0002-0892-8941/work/170586755

Schlagworte