Elisabeth Michel

TL;DR: In this paper, robust regressions were established between relative sea-level (RSL) data and benthic foraminifera oxygen isotopic ratios from the North Atlantic and Equatorial Pacific Ocean over the last climatic cycle.

TL;DR: Radiocarbon data from the Southern Ocean indicate that the deep water circulating around Antarctica was about twice as old relative to the atmosphere as it is today, a condition considered indicative of carbon dioxide accumulation and storage.

TL;DR: New evidence for variation in the apparent age of surface water (or reservoir age) in the North Atlantic ocean north of 40° N over the past 20,000 years is presented and the results allow us to reconcile the chronologies from ice cores and the NorthAtlantic marine records over the entire deglaciation period.

TL;DR: Radiocarbon dates of planktonic foraminifera and tephra contemporaneously deposited over Mediterranean marine and terrestrial regions reveal that the reservoir ages were similar to the modern one during most of the past 18,000 carbon-14 years, however, reservoir ages increased by a factor of 2 at the beginning of the last deglaciation.

TL;DR: Measurements of deglacial surface reservoir ¹⁴C age changes in the eastern Pacific sector of the Southern Ocean, obtained by tephra deposited over the marine and terrestrial regions, and records of foraminifera benthic-planktic age and δ¹³C difference provide evidence for three periods of enhanced upwelling in the SouthernOcean during the last deglaciation, supporting the hypothesis that Southern Ocean up welling contributed to the degl glac