Deep Pacific storage of respired carbon during the last ice age: Perspectives from bottom water oxygen reconstructions

AW Jacobel, RF Anderson, SL Jaccard… - Quaternary Science …, 2020 - Elsevier
Reconstructions of past changes in dissolved oxygen concentrations in the abyssal ocean
are of interest to paleoceanographers because of their potential to help characterize and …

Southern Ocean glacial conditions and their influence on deglacial events

EL Sikes, NE Umling, KA Allen… - Nature Reviews Earth & …, 2023 - nature.com
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 …

Large climate-driven changes of oceanic oxygen concentrations during the last deglaciation

SL Jaccard, ED Galbraith - Nature Geoscience, 2012 - nature.com
During the last glacial termination, the solubility of gases in the ocean decreased as ocean
temperatures rose. However, marine sediments have not unanimously recorded ocean …

Glacial expansion of oxygen-depleted seawater in the eastern tropical Pacific

BAA Hoogakker, Z Lu, N Umling, L Jones, X Zhou… - Nature, 2018 - nature.com
Increased storage of carbon in the oceans has been proposed as a mechanism to explain
lower concentrations of atmospheric carbon dioxide during ice ages; however, unequivocal …

230Th Normalization: New Insights on an Essential Tool for Quantifying Sedimentary Fluxes in the Modern and Quaternary Ocean

KM Costa, CT Hayes, RF Anderson… - Paleoceanography …, 2020 - Wiley Online Library
Abstract 230Th normalization is a valuable paleoceanographic tool for reconstructing high‐
resolution sediment fluxes during the late Pleistocene (last~ 500,000 years). As its …

North Pacific deglacial hypoxic events linked to abrupt ocean warming

SK Praetorius, AC Mix, MH Walczak, MD Wolhowe… - Nature, 2015 - nature.com
Marine sediments from the North Pacific document two episodes of expansion and
strengthening of the subsurface oxygen minimum zone (OMZ) accompanied by seafloor …

Nitrogen isotopes in bulk marine sediment: linking seafloor observations with subseafloor records

JE Tesdal, ED Galbraith, M Kienast - Biogeosciences, 2013 - bg.copernicus.org
The stable isotopes of nitrogen offer a unique perspective on changes in the nitrogen cycle,
past and present. However, the presence of multiple forms of nitrogen in marine sediments …

Ocean dynamics, not dust, have controlled equatorial Pacific productivity over the past 500,000 years

G Winckler, RF Anderson, SL Jaccard… - Proceedings of the …, 2016 - National Acad Sciences
Biological productivity in the equatorial Pacific is relatively high compared with other low-
latitude regimes, especially east of the dateline, where divergence driven by the trade winds …

[HTML][HTML] Paleoceanographic insights on recent oxygen minimum zone expansion: lessons for modern oceanography

SE Moffitt, RA Moffitt, W Sauthoff, CV Davis, K Hewett… - PloS one, 2015 - journals.plos.org
Climate-driven Oxygen Minimum Zone (OMZ) expansions in the geologic record provide an
opportunity to characterize the spatial and temporal scales of OMZ change. Here we …

No iron fertilization in the equatorial Pacific Ocean during the last ice age

KM Costa, JF McManus, RF Anderson, H Ren… - Nature, 2016 - nature.com
Abstract The equatorial Pacific Ocean is one of the major high-nutrient, low-chlorophyll
regions in the global ocean. In such regions, the consumption of the available macro …