Lake Ohrid, Albania, provides an exceptional multi-proxy record of environmental changes during the last glacial–interglacial cycle
A.-M. Lézine
(1)
,
U. von Grafenstein
(2, 1)
,
Nils Andersen
(3)
,
Soumaya Belmecheri
(1)
,
A. Bordon
(1)
,
B. Caron
(4, 5)
,
Jean-Pierre Cazet
(1)
,
Helmut Erlenkeuser
(3)
,
Eric Fouache
(6)
,
C. Grenier
(7, 8)
,
P. Huntsman-Mapila
(9)
,
D. Hureau-Mazaudier
(10)
,
D. Manelli
(11)
,
A. Mazaud
(12)
,
Cédric Robert Robert
(13)
,
R. Sulpizio
(14)
,
Jean-Jacques Tiercelin
(15)
,
G. Zanchetta
(16)
,
Z. Zeqollari
(11)
1
GLACCIOS -
Glaces et Continents, Climats et Isotopes Stables
2 GEOTRAC - Géochrononologie Traceurs Archéométrie
3 Leibniz Laboratory for Radiometric Dating and Stable Isotope Research
4 IDES - Interactions et dynamique des environnements de surface
5 University of Pisa - Università di Pisa
6 LGP - Laboratoire de géographie physique : Environnements Quaternaires et Actuels
7 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
8 HYDRO - Modélisation Hydrologique
9 Harry Oppenheimer Okavango Research Centre
10 IUEM - Institut Universitaire Européen de la Mer
11 Geological Survey, Pogradec
12 CLIMAG - Climat et Magnétisme
13 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
14 CIRISIVU Dpto Geomineralogico
15 GR - Géosciences Rennes
16 Dipartimento di Scienze della Terra [Pisa]
2 GEOTRAC - Géochrononologie Traceurs Archéométrie
3 Leibniz Laboratory for Radiometric Dating and Stable Isotope Research
4 IDES - Interactions et dynamique des environnements de surface
5 University of Pisa - Università di Pisa
6 LGP - Laboratoire de géographie physique : Environnements Quaternaires et Actuels
7 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
8 HYDRO - Modélisation Hydrologique
9 Harry Oppenheimer Okavango Research Centre
10 IUEM - Institut Universitaire Européen de la Mer
11 Geological Survey, Pogradec
12 CLIMAG - Climat et Magnétisme
13 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
14 CIRISIVU Dpto Geomineralogico
15 GR - Géosciences Rennes
16 Dipartimento di Scienze della Terra [Pisa]
A.-M. Lézine
- Fonction : Auteur
- PersonId : 16561
- IdHAL : anne-marie-lezine
- ORCID : 0000-0002-3555-5124
- IdRef : 032862555
Nils Andersen
- Fonction : Auteur
- PersonId : 765902
- ORCID : 0000-0003-4148-6791
B. Caron
- Fonction : Auteur
- PersonId : 13355
- IdHAL : benoit-caron
- ORCID : 0000-0001-7051-4339
- IdRef : 140468145
Résumé
Multi-proxy analyses on core JO2004-1 recovered from Lake Ohrid (40°55.000 N, 20°40.297E, 705 m a.s.l.) provide the first environmental and climate reconstruction in a mountainous area in Southern Europe over the last 140,000 years. The response of both lacustrine and terrestrial environments to climate change has been amplified by the peculiar geomorphological and hydrological setting, with a steep altitudinal gradient in the catchment and a karstic system feeding the lake. The karstic system was active during interglacials, leading to high carbonate production in the lake, and blocked during glacials as a result of extremely cold climate conditions with permafrost in the mountains. At the Riss–Eemian transition (Termination 2) the increase in lacustrine productivity predated forest expansion by about 10,000 years. In contrast, the Late Glacial–Holocene transition (Termination 1) was characterized by the dramatic impact of the Younger Dryas, which initially prevented interglacial carbonate production and delayed its maximum until the mid-Holocene. In contrast, forest expansion was progressive, starting as early as ca. 38,000 ago. The proximity of high mountains and the probable moderating lake effect on local climate conditions promoted forest expansion, and contributed to make the surroundings of Lake Ohrid favourable to forest refugia during the last glacial, usually steppic, period. Our study of sedimentology, mineralogy, geochemistry, magnetics, palynology and isotopes illustrates the non-linear response of terrestrial and lacustrine ecosystems to similar climate events, and demonstrates the potential of Lake Ohrid as an excellent paleoclimatic archive during the Quaternary.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Résumé |
en
Multi-proxy analyses on core JO2004-1 recovered from Lake Ohrid (40°55.000 N, 20°40.297E, 705 m a.s.l.) provide the first environmental and climate reconstruction in a mountainous area in Southern Europe over the last 140,000 years. The response of both lacustrine and terrestrial environments to climate change has been amplified by the peculiar geomorphological and hydrological setting, with a steep altitudinal gradient in the catchment and a karstic system feeding the lake. The karstic system was active during interglacials, leading to high carbonate production in the lake, and blocked during glacials as a result of extremely cold climate conditions with permafrost in the mountains. At the Riss–Eemian transition (Termination 2) the increase in lacustrine productivity predated forest expansion by about 10,000 years. In contrast, the Late Glacial–Holocene transition (Termination 1) was characterized by the dramatic impact of the Younger Dryas, which initially prevented interglacial carbonate production and delayed its maximum until the mid-Holocene. In contrast, forest expansion was progressive, starting as early as ca. 38,000 ago. The proximity of high mountains and the probable moderating lake effect on local climate conditions promoted forest expansion, and contributed to make the surroundings of Lake Ohrid favourable to forest refugia during the last glacial, usually steppic, period. Our study of sedimentology, mineralogy, geochemistry, magnetics, palynology and isotopes illustrates the non-linear response of terrestrial and lacustrine ecosystems to similar climate events, and demonstrates the potential of Lake Ohrid as an excellent paleoclimatic archive during the Quaternary.
|
Titre |
en
Lake Ohrid, Albania, provides an exceptional multi-proxy record of environmental changes during the last glacial–interglacial cycle
|
Auteur(s) |
A.-M. Lézine
1
, U. von Grafenstein
2, 1
, Nils Andersen
3
, Soumaya Belmecheri
1
, A. Bordon
1
, B. Caron
4, 5
, Jean-Pierre Cazet
1
, Helmut Erlenkeuser
3
, Eric Fouache
6
, C. Grenier
7, 8
, P. Huntsman-Mapila
9
, D. Hureau-Mazaudier
10
, D. Manelli
11
, A. Mazaud
12
, Cédric Robert Robert
13
, R. Sulpizio
14
, Jean-Jacques Tiercelin
15
, G. Zanchetta
16
, Z. Zeqollari
11
1
GLACCIOS -
Glaces et Continents, Climats et Isotopes Stables
( 1007944 )
- LSCE. CEA Paris-Saclay. Orme des merisiers. 91190 Saint-Aubin.
- France
2
GEOTRAC -
Géochrononologie Traceurs Archéométrie
( 578523 )
- LSCE. CEA Paris-Saclay. Orme des merisiers. 91190 Saint-Aubin.
- France
3
Leibniz Laboratory for Radiometric Dating and Stable Isotope Research
( 187442 )
- 24118 Kiel
- Allemagne
4
IDES -
Interactions et dynamique des environnements de surface
( 2090 )
- Dépt. des sciences de la terre Bâtiments 504 & 509 91405 ORSAY CEDEX
- France
5
University of Pisa - Università di Pisa
( 366408 )
- Lungarno Pacinotti 43 - 56126 Pisa
- Italie
6
LGP -
Laboratoire de géographie physique : Environnements Quaternaires et Actuels
( 1343 )
- 2 rue Henri Dunant
94320 Thiais
- France
7
LSCE -
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
( 518 )
- Bât. 12,
avenue de la Terrasse,
F-91198 GIF-SUR-YVETTE CEDEX
- France
8
HYDRO -
Modélisation Hydrologique
( 1007952 )
-
LSCE. CEA Paris-Saclay. Orme des merisiers. 91190 Saint-Aubin.
- France
9
Harry Oppenheimer Okavango Research Centre
( 87180 )
- P/Bag 285, Maun
- Botswana
10
IUEM -
Institut Universitaire Européen de la Mer
( 413764 )
- IUEM Technopôle Brest-Iroise - rue Dumont d'Urville - 29280 Plouzané
- France
11
Geological Survey, Pogradec
( 499373 )
- Albanie
12
CLIMAG -
Climat et Magnétisme
( 1007943 )
- LSCE. CEA Paris-Saclay. Orme des merisiers. 91190 Saint-Aubin.
- France
13
LPC2E -
Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
( 185533 )
- 3A, Avenue de la Recherche Scientifique 45071 Orléans cedex 2
- France
14
CIRISIVU Dpto Geomineralogico
( 110690 )
- via Orabona 4, 70125 Bari
- Italie
15
GR -
Géosciences Rennes
( 179899 )
- Bâtiment 15 - Université de Rennes 1 - Campus de Beaulieu -263 Av du général Leclerc- CS 74205 - 35042 Rennes Cedex - France
- France
16
Dipartimento di Scienze della Terra [Pisa]
( 251264 )
- Università di Pisa, Via S. Maria 53, I-56126 Pisa
- Italie
|
Date de publication |
2010
|
Audience |
Internationale
|
Comité de lecture |
Oui
|
Vulgarisation |
Non
|
Langue du document |
Anglais
|
Nom de la revue |
|
Volume |
287
|
Numéro |
1-4
|
Page/Identifiant |
116-127
|
Domaine(s) |
|
Collaboration/Projet |
|
Mots-clés |
en
Ohrid, Albania, Multi-proxy approach, Last climatic cycle, Palaeoenvironments
|
DOI | 10.1016/j.palaeo.2010.01.016 |
UT key WOS | WOS:000276180100009 |
Origine :
Accord explicite pour ce dépôt
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