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DOI	10.5194/cp-16-523-2020
	A new age model for the Pliocene of the southern North Sea basin: A multi-proxy climate reconstruction
	Dearing Crampton-Flood E.; Noorbergen L.J.; Smits D.; Christine Boschman R.; Donders T.H.; Munsterman D.K.; Ten Veen J.; Peterse F.; Lourens L.; Sinninghe Damsté J.S.
发表日期	2020
ISSN	18149324
起始页码	523
结束页码	541
卷号	16 期号:2
英文摘要	The mid-PiacenzianWarm Period (mPWP; 3264-3025 ka) represents the most recent interval in Earth's history where atmospheric CO2 levels were similar to today. The reconstruction of sea surface temperatures (SSTs) and climate modelling studies has shown that global temperatures were 2-4 °C warmer than present. However, detailed reconstructions of marginal seas and/or coastal zones, linking the coastal and continental climate evolution, are lacking. This is in part due to the absence of precise age models for coastal sedimentary successions, as they are generally formed by dynamic depositional systems with varying sediment and freshwater inputs. Here, we present a multi-proxy record of Pliocene climate change in the coastal southern North Sea basin (SNSB) based on the sedimentary record from borehole Hank, the Netherlands. The marginal marine setting of the Hank borehole during the late Pliocene provides an excellent opportunity to correlate marine and terrestrial signals due to continental sediment input mainly derived from the proto-Rhine-Meuse River. We improve the existing low-resolution palynology-based age model for the Hank borehole using stable oxygen and carbon isotope (δ18O and δ13C) measurements of the endobenthic foraminifera species Cassidulina laevigata, integrated with biochrono-and seismostratigraphy. Identification of hiatuses and freshwater effects in the record allows us to isolate glacial-interglacial climate signals in order to tune the endobenthic oxygen stable isotope record to a global benthic δ18O stack. This results in a tuned age framework for the SNSB for the late Pliocene (∼ 3190-2770 ka). Our multi-proxy climate reconstruction for the interval which covers part of the mPWP (∼ 3190-3000 ka) shows a strong agreement between lipid biomarker and palynology-based terrestrial temperature proxies, which suggest a stable climate, 1-2 °C warmer than present. In the marine realm, however, biomarker-based SSTs show a large range of variation (10 °C). Nevertheless, the fluctuation is comparable to other SST records from the North Atlantic and Nordic Seas, suggesting that a common factor, possibly ocean circulation, exerted a strong influence over SSTs in the North Atlantic and the North Sea at this time. © Author(s) 2020.
语种	英语
scopus关键词	carbon isotope; climate change; climate modeling; foraminifera; oceanic circulation; palynology; Pliocene; proxy climate record; reconstruction; sea surface temperature; stable isotope; Arctic Ocean; Atlantic Ocean; Atlantic Ocean (North); Meuse River; Netherlands; North Sea; Norwegian Sea; Cassidulina laevigata; Foraminifera
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146732
作者单位	Department of Earth Sciences, Utrecht University, Utrecht, Netherlands; Department of Earth Sciences, VU University Amsterdam, Amsterdam, Netherlands; Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Utrecht University, Netherlands; Department of Physical Geography, Utrecht University, Utrecht, Netherlands; TNO Geological Survey of Netherlands, Utrecht, Netherlands; School of Earth and Environmental Sciences, University of Manchester, Manchester, United Kingdom
推荐引用方式 GB/T 7714	Dearing Crampton-Flood E.,Noorbergen L.J.,Smits D.,et al. A new age model for the Pliocene of the southern North Sea basin: A multi-proxy climate reconstruction[J],2020,16(2).
APA	Dearing Crampton-Flood E..,Noorbergen L.J..,Smits D..,Christine Boschman R..,Donders T.H..,...&Sinninghe Damsté J.S..(2020).A new age model for the Pliocene of the southern North Sea basin: A multi-proxy climate reconstruction.Climate of the Past,16(2).
MLA	Dearing Crampton-Flood E.,et al."A new age model for the Pliocene of the southern North Sea basin: A multi-proxy climate reconstruction".Climate of the Past 16.2(2020).