气候变化领域集成服务门户(CCPortal): The Sea of Marmara during Marine Isotope Stages 5 and 6

CCPortal

DOI	10.1016/j.quascirev.2019.07.031
	The Sea of Marmara during Marine Isotope Stages 5 and 6
	Çağatay M.N.; Eriş K.K.; Makaroğlu Ö.; Yakupoğlu N.; Henry P.; Leroy S.A.G.; Uçarkuş G.; Sakınç M.; Yalamaz B.; Bozyiğit C.; Kende J.
发表日期	2019
ISSN	0277-3791
起始页码	124
结束页码	141
卷号	220
英文摘要	Multi-proxy analyses and lithology of two cores, MRS-CS18 and MRS-CS27, from the İmralı Basin of the Sea of Marmara (SoM) provide novel information on environmental conditions, relative sea level, and sill depths of the straits of Bosporus and Dardanelles during the Marine Isotope Stages (MIS) 5 and 6. The fossil and multi-proxy geochemical records show that lacustrine conditions prevailed in the SoM during most of MIS 6, from 171 to 134 ka BP, and that the transition to marine conditions during Termination II took place at ∼134.06 ± 1.10 ka BP. MIS 5 interstadials a, c, and e witnessed the formation of three sapropels (MSAP-2, MSAP-3 and MSAP-4) under suboxic to anoxic marine conditions, whereas during stadials MIS 5b (∼94–86) and MIS 5d (∼112–105 ka BP), lacustrine and marine conditions with deposition of sediments having relatively low TOC contents (<2%) prevailed, respectively. Consideration of the global sea level, together with the timing of the marine reconnection of the SoM during Termination II and persistence of the marine conditions during MIS 5, except for MIS 5b and later part of MIS 5a, suggests that the Dardanelles sill depth was at ∼ -75 ± 5 m during the reconnection at Termination II and at −55 ± 5 m during most of MIS 5. On similar considerations of the Black Sea marine reconnections and disruptions during the MIS 5, a sill depth of −35 to −40 m (similar to the present day depth) is indicated for the Bosporus Strait. The SoM geochemical proxy records correlate well with the regional terrestrial and marine records and the NGRIP oxygen isotope record with its Stadial and Interstadial phases, showing the common effect of the North Atlantic climatic events triggered by the perturbations in the Atlantic Meridional Overturning Circulation. However, the amplitude of the oscillations recorded in the SoM during MIS 6 (Penultimate Glacial Period) is relatively small compared to the MIS 4 to MIS 2 (Last Glacial Period). © 2019
英文关键词	Eastern Europe; Geochemical proxies; Late quaternary; Marine isotope stages 5–6; Paleoceanography; Sapropels; Sea of Marmara; Sedimentology-marine cores
语种	英语
scopus关键词	Geochemistry; Isotopes; Lithology; Sea level; Eastern Europe; Geochemical proxies; Late quaternary; Marine cores; Marine isotope stages; Paleoceanography; Sapropels; Sea of Marmara; Glacial geology; environmental conditions; interstadial; lacustrine environment; marine environment; marine isotope stage; meridional circulation; oxygen isotope; paleoceanography; Quaternary; sapropel; sediment core; Atlantic Ocean; Atlantic Ocean (North); Black Sea; Bosporus Strait; Canakkale [Turkey]; Dardanelles; Eastern Europe; Istanbul [Turkey]; Sea of Marmara; Turkey
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151805
作者单位	İstanbul Technical University, EMCOL Research Centre and Dept. Geological Engineering, Ayazağa, İstanbul, 34469, Turkey; İstanbul-Cerrahpaşa University, Department of Geophysical Engineering, Avcılar, İstanbul, Turkey; CEREGE (UMR7330), Aix-Marseille University, CNRS-IRD, Marseille 7, 13330, France; Aix Marseille Univ., CNRS, Minist. Culture, LAMPEA, UMR 7269, 5 Rue du Château de l'Horloge, Aix-en-Provence, 13094, France
推荐引用方式 GB/T 7714	Çağatay M.N.,Eriş K.K.,Makaroğlu Ö.,et al. The Sea of Marmara during Marine Isotope Stages 5 and 6[J],2019,220.
APA	Çağatay M.N..,Eriş K.K..,Makaroğlu Ö..,Yakupoğlu N..,Henry P..,...&Kende J..(2019).The Sea of Marmara during Marine Isotope Stages 5 and 6.Quaternary Science Reviews,220.
MLA	Çağatay M.N.,et al."The Sea of Marmara during Marine Isotope Stages 5 and 6".Quaternary Science Reviews 220(2019).