Lake Ohrid is located at the border between FYROM(Former Yugoslavian Republic of Macedonia) and Albaniaand formed during the latest phases of Alpine orogenesis.It is the deepest, the largest and the oldest tectoniclake in Europe. To better understand the paleoclimatic andpaleoenvironmental evolution of Lake Ohrid, deep drillingwas carried out in 2013 within the framework of the ScientificCollaboration on Past Speciation Conditions (SCOPSCO)project that was funded by the International ContinentalScientific Drilling Program (ICDP). Preliminary resultsindicate that lacustrine sedimentation of Lake Ohrid startedbetween 1.2 and 1.9 Ma ago. Here we present new pollendata (selected percentage and concentration taxa/groups) ofthe uppermost 200m of the 569m long DEEP core drilledin the depocentre of Lake Ohrid. The study is the fruit of acooperative work carried out in several European palynologicallaboratories. The age model of this part of the core isbased on 10 tephra layers and on tuning of biogeochemicalproxy data to orbital parameters.According to the age model, the studied sequence coversthe last 500 000 years at a millennial-scale resolution(1.6 ka) and records the major vegetation and climatechanges that occurred during the last 12 (13 only pro parte)marine isotope stages (MIS). Our results indicate that thereis a general good correspondence between forested/nonforestedperiods and glacial–interglacial cycles of the marineisotope stratigraphy. The record shows a progressive changefrom cooler and wetter to warmer and drier interglacial conditions.This shift in temperature and moisture availability isvisible also in vegetation during glacial periods.
Pollen-based paleoenvironmental and paleoclimatic change at Lake Ohrid (south-eastern Europe) during the past 500 ka / Sadori, Laura; Koutsodendris, Andreas; Panagiotopoulos, Konstantinos; Masi, Alessia; Bertini, Adele; Combourieu Nebout, Nathalie; Francke, Alexander; Kouli, Katerina; Joannin, Sébastien; Mercuri, Anna Maria; Peyron, Odile; Torri, Paola; Wagner, Bernd; Zanchetta, Giovanni; Sinopoli, Gaia; Donders, Timme H.. - In: BIOGEOSCIENCES. - ISSN 1726-4170. - STAMPA. - 13:5(2016), pp. 1423-1437. [10.5194/bg-13-1423-2016]
Pollen-based paleoenvironmental and paleoclimatic change at Lake Ohrid (south-eastern Europe) during the past 500 ka
Sadori, Laura;Koutsodendris, Andreas;Panagiotopoulos, Konstantinos;Masi, Alessia;Bertini, Adele;Combourieu Nebout, Nathalie;Francke, Alexander;Kouli, Katerina;Joannin, Sébastien;MERCURI, Anna Maria;Peyron, Odile;TORRI, Paola;Wagner, Bernd;Zanchetta, Giovanni;Sinopoli, Gaia;Donders, Timme H.
2016
Abstract
Lake Ohrid is located at the border between FYROM(Former Yugoslavian Republic of Macedonia) and Albaniaand formed during the latest phases of Alpine orogenesis.It is the deepest, the largest and the oldest tectoniclake in Europe. To better understand the paleoclimatic andpaleoenvironmental evolution of Lake Ohrid, deep drillingwas carried out in 2013 within the framework of the ScientificCollaboration on Past Speciation Conditions (SCOPSCO)project that was funded by the International ContinentalScientific Drilling Program (ICDP). Preliminary resultsindicate that lacustrine sedimentation of Lake Ohrid startedbetween 1.2 and 1.9 Ma ago. Here we present new pollendata (selected percentage and concentration taxa/groups) ofthe uppermost 200m of the 569m long DEEP core drilledin the depocentre of Lake Ohrid. The study is the fruit of acooperative work carried out in several European palynologicallaboratories. The age model of this part of the core isbased on 10 tephra layers and on tuning of biogeochemicalproxy data to orbital parameters.According to the age model, the studied sequence coversthe last 500 000 years at a millennial-scale resolution(1.6 ka) and records the major vegetation and climatechanges that occurred during the last 12 (13 only pro parte)marine isotope stages (MIS). Our results indicate that thereis a general good correspondence between forested/nonforestedperiods and glacial–interglacial cycles of the marineisotope stratigraphy. The record shows a progressive changefrom cooler and wetter to warmer and drier interglacial conditions.This shift in temperature and moisture availability isvisible also in vegetation during glacial periods.
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