When a carbon reservoir has a lower radiocarbon content than the atmosphere, this is
referred to as a reservoir effect. This is expressed as an offset between the radiocarbon ages …

Radiocarbon is an extremely useful carbon cycle tracer and radiometric dating tool. Here,
we review the main principles and challenges involved in the use of radiocarbon in …

Using new and published marine fossil radiocarbon (14C/C) measurements, a tracer
uniquely sensitive to circulation and air-sea gas exchange, we establish several …

Abstract The Southern Ocean is an important regulator of global CO2 levels and likely had a
key role in lowering atmospheric CO2 levels during the Last Glacial Maximum (LGM) and …

Uranium isotope ratios are widely utilized in paleoceanography. The 238 U/235 U ratio
(expressed as δ 238 U) is leveraged as a proxy for the areal extent of anoxic seafloor, and …

Radiocarbon is a tracer that provides unique insights into the ocean's ability to sequester CO
2 from the atmosphere. While spatial patterns of radiocarbon in the ocean interior can …

The Southern Ocean regulates the ocean's biological sequestration of CO2 and is widely
suspected to underpin much of the ice age decline in atmospheric CO2 concentration, but …

Past changes in ocean 14C disequilibria have been suggested to reflect the Southern
Ocean control on global exogenic carbon cycling. Yet, the volumetric extent of the glacial …

Seawater 234U/238U provides global-scale information about continental weathering and is
vital for marine uranium-series geochronology. Existing evidence supports an increase in …

We present a synthesis of 1,361 deep‐sea radiocarbon data spanning the past 40 kyr and
computed (for 14C‐dated records) from the same calibration to atmospheric 14C. The most …