#3358. A tephra-based correlation of marine and terrestrial records of MIS 11c from Britain and the North Atlantic

October 2026publication date
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Journal’s subject area:
Paleontology;
Arts and Humanities (miscellaneous);
Earth and Planetary Sciences (miscellaneous);
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Abstract:
Resolving marine and terrestrial records of glacial and interglacial stages has long been a challenge for Quaternary studies. We present a tephra-based correlation for MIS 11c of a North Atlantic marine core and a British terrestrial record (Marks Tey). A varved chronology is presented for the annually laminated lake sequence at Marks Tey and the proxy data from this site are plotted on an annual timescale for the first time. This record shows clear evidence for an abrupt cold event and corresponding ecological and landscape response. Furthermore, this synchronisation shows that the abrupt cold event in Marks Tey was coincident with a centennial-scale cold event in ODP 980, as evidenced by an increase in Neogloboquadrina pachyderma (s) percentage. In both ODP 980 and Marks Tey the age of this abrupt event was ca 414 500 a indicating that, at this point in MIS 11c, a widespread cold event occurred in the northeastern Atlantic and the British Isles.
Keywords:
Abrupt Change; Interglacial; North Atlantic; Tephra

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