气候变化领域集成服务门户(CCPortal): An end to the Last Interglacial highstand before 120 ka: Relative sea-level evidence from Infreschi Cave (Southern Italy)

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DOI	10.1016/j.quascirev.2020.106658
	An end to the Last Interglacial highstand before 120 ka: Relative sea-level evidence from Infreschi Cave (Southern Italy)
	Bini M.; Zanchetta G.; Drysdale R.N.; Giaccio B.; Stocchi P.; Vacchi M.; Hellstrom J.C.; Couchoud I.; Monaco L.; Ratti A.; Martini F.; Sarti L.
发表日期	2020
ISSN	0277-3791
卷号	250
英文摘要	The timing, duration and evolution of sea level during the Marine Isotope Stage 5e (MIS 5e) highstand is a subject of intense debate. A major problem in resolving this debate is the difficulty of chronologically constraining the sea level fall that followed the peak of the highstand. This was mainly controlled by ice-sheet dynamics, the understanding of which is relevant for assessing future sea-level behavior due to global warming. Here we use stratigraphical and geochoronological (U/Th dating and tephra fingerprinting) evidence from the Infreschi archaeological cave (Marina di Camerota, Southern Italy) to constrain relative sea level (RSL) evolution during the MIS 5e highstand and younger stages. Uranium-thorium dating of speleothem deposition phases places the maximum highstand RSL at 8.90 ± 0.6 m a.s.l., as indicated by the near-horizontal upper limit of Lithophaga boreholes measured for along a ∼3.5 km coastal cliff section. Geochronological data show that RSL fell more than 6 m before ∼120 ka, suggesting a duration of the Last Interglacial highstand significantly shorter than proposed in some previous studies. Modelling shows that the RSL trend predicted by the ICE-5G and ICE-6G ice-sheet simulations is consistent with our data, but requires an additional significant reduction of both Greenland and Antarctic ice sheets to match the height of the local maximum highstand if no correction for tectonics is applied. Reconciling field data and models requires an earlier and likely shorter duration of the MIS 5e highstand. This suggests that our new data can constrain global ice-volume variations during the penultimate deglaciation, as well as glacial inception at the end of the Last Interglacial. According to our chronology, there is no local evidence of higher-than-present-day sea levels after 120 ka. © 2020 Elsevier Ltd
英文关键词	Highstand; Last glacial inception; Middle palaeolithic; MIS-5e; Relative sea level; Solid earth geophysical models; Southern Italy; U/Th dating
语种	英语
scopus关键词	Caves; Geochronology; Glacial geology; Glaciers; Global warming; Ice; Antarctic ice sheets; Coastal cliff; Global ice volume; Ice sheet dynamics; Last interglacial; Marine isotope stages; Relative sea level; Southern Italy; Sea level; Lithophaga; Lithophaga lithophaga
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/151221
作者单位	Dipartimento di Scienze della Terra, University of Pisa, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy; Istituto di Geologia Ambientale e Geoingegneria - CNR, Monterotondo, Rome, Italy; School of Geography, The University of Melbourne, Victoria, 3010, Australia; Laboratoire EDYTEM, UMR CNRS 5204, Universite’ Savoie Mont Blanc, Universite’ Grenoble Alpes, Le Bourget du Lac, 73376, France; NIOZ - Royal Netherlands Institute for Sea Research, And Utrecht University, Coastal Systems (TX), P.O. Box 59, Den Burg, Texel, AB 1790, Netherlands; School of Earth Sciences, The University of Melbourne, Melbourne, VIC 3010, Australia; Dipartimento di Scienze Della Terra, Università La Sapienza di Roma, Rome, Italy; Dipartimento di Storia, Archeologia, Geografia, Arte e Spettacolo, University of Florence, Prehistory Unit, Via S.Egidio 21, Firenze, 50122, Italy; Dipartimento di Scienze storiche e dei Beni culturali, University of Siena, Via Roma 56, Siena, 53100, Italy; CIRSEC - Centro Interdipartim...
推荐引用方式 GB/T 7714	Bini M.,Zanchetta G.,Drysdale R.N.,et al. An end to the Last Interglacial highstand before 120 ka: Relative sea-level evidence from Infreschi Cave (Southern Italy)[J],2020,250.
APA	Bini M..,Zanchetta G..,Drysdale R.N..,Giaccio B..,Stocchi P..,...&Sarti L..(2020).An end to the Last Interglacial highstand before 120 ka: Relative sea-level evidence from Infreschi Cave (Southern Italy).Quaternary Science Reviews,250.
MLA	Bini M.,et al."An end to the Last Interglacial highstand before 120 ka: Relative sea-level evidence from Infreschi Cave (Southern Italy)".Quaternary Science Reviews 250(2020).