globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2017.08.017
Scopus记录号: 2-s2.0-85027577674
论文题名:
Relative sea-level variability during the late Middle Pleistocene: New evidence from eastern England
作者: Barlow N.L.M.; Long A.J.; Gehrels W.R.; Saher M.H.; Scaife R.G.; Davies H.J.; Penkman K.E.H.; Bridgland D.R.; Sparkes A.; Smart C.W.; Taylor S.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 173
起始页码: 20
结束页码: 39
语种: 英语
英文关键词: Dating ; Hoxnian ; Ice sheets ; Micropaleontology ; Pleistocene ; Quaternary ; Sea-level changes ; Western Europe
Scopus关键词: Climate change ; Glacial geology ; Glaciers ; Ice ; Isotopes ; Landforms ; Stratigraphy ; Dating ; Hoxnian ; Ice sheet ; Micropaleontology ; Pleistocene ; Quaternary ; Sealevel change ; Western Europe ; Sea level ; Anthozoa ; Foraminifera
英文摘要: Unravelling patterns of relative sea-level change during previous interglacials enhances our understanding of ice sheet response to changing climate. Temperate-latitude estuarine environments have the potential to preserve continuous records of relative sea level from previous interglacial (warm) periods. This is important because, currently, we typically only have snapshots of sea-level highstands from low-latitude corals and raised palaeoshoreline indicators while the (continuous) deep-sea oxygen isotope record only provides indirect evidence of sea-level changes. Here, we focus on the Nar Valley in eastern England, in which is preserved evidence of a late middle-Pleistocene marine transgression more than 20 vertical metres in extent. By applying a model of coastal succession and sea-level tendencies, as used in Holocene sea-level studies, we assess the mode (abrupt versus gradual) of sea-level change recorded by the interglacial Nar Valley sequences. Compiled palaeo-stratigraphic evidence comprising foraminifera, pollen and amino acid racemization dating, suggests that the mode of sea-level change in the Nar Valley interglacial sequence was gradual, with potentially two phases of regional transgression and relative sea-level rise occurring at two separate times. The first phase occurred during the latter part of marine Oxygen Isotope Stage (MIS) 11 from ∼8 to 18 m OD; and, the second phase potentially occurred during early MIS 9 from ∼-3 to 3 m OD (with long-term tectonic uplift included in these estimates). We cannot conclusively preclude an alternative MIS 11 age for these lower sediments. The lack of indicators for rapid sea-level oscillations in the Nar Valley adds weight to an argument for steady melt of the ice sheets during both MIS 11 and 9. © 2017 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59100
Appears in Collections:过去全球变化的重建

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作者单位: Department of Geography, Durham University, South Road, Durham, United Kingdom; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Environment Department, University of York, Heslington, York, United Kingdom; School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, United Kingdom; Department of Geography and Environment, University of Southampton, Highfield, Southampton, United Kingdom; School of Geography, Earth and Environmental Sciences (GEES), University of Birmingham, Birmingham, United Kingdom; BioArCh, Department of Chemistry, University of York, Heslington, York, United Kingdom; School of Earth & Ocean Sciences, Cardiff University, Cardiff, United Kingdom; School of Geography, Earth and Environmental Sciences, Plymouth University, Plymouth, United Kingdom

Recommended Citation:
Barlow N.L.M.,Long A.J.,Gehrels W.R.,et al. Relative sea-level variability during the late Middle Pleistocene: New evidence from eastern England[J]. Quaternary Science Reviews,2017-01-01,173
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