Quantifying trends and transitions in a Miocene benthic δ 18 O stack

Increased abyssal ocean density stratification across the Middle Pleistocene Transition

New Constraints on the Onset of Antarctic Glaciation From Combined Radiogenic Hafnium and Neodymium Isotopes

The drawdown of atmospheric CO2 likely triggered Antarctic glaciation during the Eocene‐Oligocene Transition (34 Ma). Accurately constraining this shift from “greenhouse” to an “icehouse” climate is essential for understanding global carbon cycle dynamics. However, conventional proxies often lack the sensitivity to cap...

Climatic transitions across Marine Isotope Stage 10–12 in the Alps evidenced by subglacial speleothems

Late Pleistocene climate in the European Alps was marked by large, orbitally driven fluctuations in temperature, precipitation, and ice extent. Reconstructing mountain glaciation prior to the Last Glacial Maximum remains challenging, however, because glacial deposits are often eroded or reworked. Here we present a...

Simulated Ocean Oxygen Under Miocene Boundary Conditions

The Miocene Climatic Optimum (MCO; 16.9–14.7 Ma) was a warm interval with atmospheric comparable to end‐of‐21st‐century projections under intermediate emission scenarios. Proxy records indicate the Oxygen Minimum Zone (OMZ) in the Eastern Tropical Pacific (ETP) was small or non‐existent during the MCO, expanding only...

Southern Portugal hydroclimate of the last millennium from near‐annually resolved speleothem records

Hydroclimate in Portugal is influenced by the North Atlantic subtropical high‐pressure system (the Azores High) and by internal climate modes, most prominently the North Atlantic Oscillation, which may shift in position and/or intensity due to anthropogenic climate change. The development of high‐resolution paleocl...

Chemostratigraphic Constraints on Oligocene–Miocene Sedimentation and Hiatus Formation at IODP Site U1516, Mentelle Basin: Implications for Deep‐Water Circulation in the Eastern Indian Ocean

The International Ocean Discovery Program (IODP) Expedition 369 recovered high‐quality deep‐sea sediments from Site U1516 in the Mentelle Basin, offshore southwest Australia, spanning back to the Late Cretaceous. Here we present an integrated chemostratigraphic study of the Oligocene–Miocene interval at Site U1516,...