#3359. Reconstruction of Middle to Late Quaternary sea level using submerged speleothems from the northeastern Yucat?n Peninsula

November 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:
We examined 14 subaerially deposited speleothems retrieved from submerged caves in the northeastern Yucatan Peninsula (Mexico). These speleothems grew during the Middle to Late Quaternary and were dated by 230Th-U techniques to provide upper depth limits for past sea levels. We report the first relative sea-level limits for Marine Isotope Stages (MIS) 11 and 6, and present new evidence for sea-level oscillations during MIS 5 and early MIS 1. For the latter periods, the origin of growth interruptions is evaluated by combining petrographic methods with trace element analyses. For the early Holocene, previous discrepancies with respect to a potential multimetre oscillation of local sea level were found to be challenging to reconcile with the existing speleothem data from the area.
Keywords:
relative sea level; sea-level oscillation; speleothem; Th-U dating;

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