Lake Marmara;
Western Turkey;
Holocene environment;
Sediment geochemistry;
LACUSTRINE ORGANIC-MATTER;
EASTERN MEDITERRANEAN REGION;
LATE QUATERNARY CLIMATE;
STABLE-ISOTOPE RECORDS;
SEA-LEVEL CHANGES;
NORTHERN RED-SEA;
SOUTHWEST TURKEY;
SHALLOW LAKES;
DEAD-SEA;
ANATOLIA;
D O I:
10.1016/j.quaint.2017.12.045
中图分类号:
P9 [自然地理学];
学科分类号:
0705 ;
070501 ;
摘要:
Beginning from the Early Holocene marked environmental changes have been revealed by a multi-proxy study of two radiocarbon-dated sediment cores from Lake Marmara. Both cores are composed of fine clastic sediments deposited over the last 1845 years. The core taken from the western depocentre supplementary consists of a 20 cm thick interval which represents a time period of 10.28 to 8.28ka yrBP. A desiccation event caused 6435 year hiatus in the sedimentary record. The lake was established again at 1.85ka yrBP. After a transitional humid phase at the beginning of the Late Holocene, overall arid conditions were continuously effective. Especially the difference between the geochemical composition of Early and Late Holocene sediments indicates distinctive environmental conditions. Respective humid phases took place in between 10.28 and 8.28ka yrBP (Early Holocene) and 1.85 to 1.72ka yrBP (Late Holocene). The Early Holocene phase is characterized by higher fluvial activity controlled by the humid climate and active tectonics. Right after the Middle Holocene droughts, a short-termed tendency to relatively fresh and oxic conditions prevailed. However, the small surface area of the lake and its shallow conditions caused fast variations of hydrology, oxidation level, salinity and organic productivity during the last 1850 years. We suggest that a combination of the instability of the Eastern Mediterranean climate and local conditions is the main control on the changing paleo-environment during the study period. (C) 2017 Elsevier Ltd and INQUA. All rights reserved.
机构:
Hungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Hubay, Katalin
Braun, Mihaly
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Hungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Braun, Mihaly
Buczko, Krisztina
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机构:
Hungarian Nat Hist Museum, Dept Bot, Pf 137, H-1431 Budapest, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Buczko, Krisztina
Pal, Ilona
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机构:
Hungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Eotvos Lorand Univ, Dept Phys & Appl Geol, Pazmany Peter Setany 1-c, H-1117 Budapest, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Pal, Ilona
Veres, Daniel
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机构:
Romanian Acad, Inst Speleol, Clinicilor 5, Cluj Napoca, RomaniaHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Veres, Daniel
Turi, Marianna
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Hungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Turi, Marianna
Biro, Tamas
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机构:
ELTE, Dept Phys Geog, Pazmany Peter Setany 1-c, H-1117 Budapest, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
Biro, Tamas
Magyari, Eniko
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机构:
MTA MTM ELTE Res Grp Paleontol, Pazmany Peter Setany 1-c, H-1117 Budapest, Hungary
Dept Environm & Landscape Geog, Pazmany Peter Setany 1-c, H-1117 Budapest, HungaryHungarian Acad Sci, Inst Nucl Res, Isotope Climatol & Environm Res Ctr ICER, Bem Ter 18-C, H-4026 Debrecen, Hungary
机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China
Sun, Weiwei
Liu, Enfeng
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机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China
Shandong Normal Univ, Coll Geog & Environm, Jinan 250014, Shandong, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China
Liu, Enfeng
Zhang, Enlou
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机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China
Zhang, Enlou
Shen, Ji
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机构:
Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R ChinaChinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China