The δ18O stratigraphy of the Hoxnian lacustrine sequence at Marks Tey, Essex, UK: implications for the climatic structure of MIS 11 in Britain

Gareth Tye, Jennifer Sherriff, Ian Candy, Pete Coxon, Adrian Palmer, Erin McClymont, Danielle Schreve

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Marine Isotope Stage 11 (MIS 11) is considered to be one of the best analogues for the Holocene. In the UK the long lacustrine sequence at Marks Tey, Essex, spans the entirety of the Hoxnian interglacial, the British correlative of MIS 11c. We present multiproxy evidence from a new 18.5 metre core from this sequence. Lithostratigraphy, pollen stratigraphy and biomarker evidence indicate that these sediments span the pre-, early and late temperate intervals of this interglacial as well as cold climate sediments that post-date the Hoxnian. The δ18O signal of authigenic carbonate from this sequence produces a number of clear patterns that are interpreted as reflecting the climatic structure of the interglacial. As well as providing evidence for long-term climate stability during the interglacial and a major post-Hoxnian stadial/interstadial oscillation the δ18O signal provides strong evidence for abrupt cooling events during the interglacial itself. One of these isotopic events occurs in association with a short-lived increase in non-arboreal pollen (the NAP phase). The results presented here are discussed in the context of other MIS 11 records from Europe and the north Atlantic, particularly with respect to our understanding of the occurrence of abrupt climatic events in pre-Holocene interglacials.
Original languageEnglish
Pages (from-to)75-92
Number of pages18
JournalJournal of Quaternary Science
Issue number2
Early online date16 Mar 2016
Publication statusE-pub ahead of print - 16 Mar 2016

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