Contraction of North Atlantic Deep Water during glacial times: a paradigm called into question
Blaser and co-authors propose a new distribution of deep-water masses in the Atlantic Ocean during the Last Glacial Maximum and the Heinrich Stadial 1…
Paleocirculation
Authigenic radiogenic neodymium isotope composition traces millennial-scale overturning circulation variability in the Arabian Sea
The neodymium isotopic signature of the sediment authigenic fraction is, a priori, a valuable proxy for reconstructing deep-water mass trajectories…
Neodymium isotopes trace past Antarctic Intermediate Water circulation in the Arabian Sea
Shukla and co-authors reconstruct ventilation in the Northwestern Indian Ocean…
The tumultuous life of the Antarctic Circumpolar Current over 5,3 million years, including focus on the glacial-interglacial forcing!
Lamy and co-authors used sediment records from the pelagic central and remote South Pacific Ocean, to reconstruct the strength of the Antarctic Circumpolar Current and shifts of the Southern Ocean frontal system over the past roughly 5.3 Myr…
The role of melting-ice in driving the slowdown of circulation in the western Atlantic Ocean revealed by protactinium-thorium ratio
Abrupt climate changes in the past have been attributed to variations in Atlantic Meridional Overturning Circulation (AMOC) strength. Knowing the exact timing and magnitude of the AMOC shift is important […]
Why did the concentration of atmospheric carbon dioxide rise so much and so quickly during the last deglaciation?
During the Last Glacial Maximum, the deep southern Pacific waters were stratified, efficiently accumulating old, CO2 rich waters. Basak and co-authors (2018, see reference below) measured neodymium isotopes in sediment […]