Results 21 to 30 of about 1,403,380 (198)

Thallium Isotopes Across the Smithian-Spathian Boundary: Evidence for Anoxia Throughout Most of the Early Triassic. [PDF]

Geobiology
ABSTRACT Following the largest known Phanerozoic extinction, the end‐Permian mass extinction, the Early Triassic is often considered an interval of slow biotic recovery. During this time, the minor Smithian‐Spathian extinction occurred, further delaying the biotic recovery of this epoch.
Newby SM, Owens JD, Young SA, Hammer Ø.
europepmc   +2 more sources

Southern Ocean evidence for recurring West Antarctic Ice Sheet destabilization during Marine Isotope Stage 11 [PDF]

Nature Communications
Millennial-scale deoxygenation of Antarctic Bottom Water (AABW) in the Atlantic Southern Ocean during past interglacials was linked to West Antarctic Ice Sheet (WAIS) melt-driven suppression of dense water formation along the Antarctic margin.
L. Jebasinski, D. A. Frick, A. K. I. U. Kapuge, C. Basak, M. Saavedra-Pellitero, G. Winckler, F. Lamy, J. Gottschalk   +7 more
doaj   +2 more sources

A climate threshold for ocean deoxygenation during the Early Cretaceous

Nature
Oceanic anoxic events (OAEs) are historical intervals of global-scale ocean deoxygenation associated with hyperthermal climate states and biological crises1,2.
K. Bauer, N. R. McKenzie, Chris T L Cheung, G. Gambacorta, C. Bottini, A. Nordsvan, E. Erba, Sean A. Crowe   +7 more
semanticscholar   +2 more sources

Ocean Oxygen: the role of the Ocean in the oxygen we breathe and the threat of deoxygenation

, 2023
EMB Future Science Brief No. 10 highlights the most recent science on Ocean oxygen, including causes, impacts and mitigation strategies of Ocean oxygen loss, and discusses whether “every second breath we take comes from the Ocean”.
Yücel, Mustafa, Andreas Oschlies, Donald E. Canfield, Tommaso Tesi, Karine Salin, Ciglenecki, Irena, Tesi, Tomaso, Irena Ciglenečki, Croot, Peter, Serret, Pablo, Birgit Schneider, Oschlies, Andreas, Peter Croot, Canfield, Donald, Marilaure Grégoire, Tesi, Tommaso, Schneider, Birgit, Salin, Karine, Castro, Carmen, Caroline Slomp, Pablo Serret, Mustafa Yucel, Gregoire, Marilaure, Slomp, Caroline, Carmen Castro   +24 more
core   +4 more sources

Ocean deoxygenation, the global phosphorus cycle and the possibility of human-caused large-scale ocean anoxia. [PDF]

Philos Trans A Math Phys Eng Sci, 2017
The major biogeochemical cycles that keep the present-day Earth habitable are linked by a network of feedbacks, which has led to a broadly stable chemical composition of the oceans and atmosphere over hundreds of millions of years.
Watson AJ, Lenton TM, Mills BJW.
europepmc   +2 more sources

Editorial: Drivers and consequences of ocean deoxygenation in tropical ecosystems [PDF]

Frontiers in Marine Science
Coastal habitats are under increasing anthropogenic pressures that jeopardize the survival and persistence of ecologically important marine life.
Maggie D. Johnson, S. Klein, Noelle M. Lucey, Alexandra Steckbauer, A. Shore, E. Camp   +5 more
semanticscholar   +2 more sources

Glacial CO₂ decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust [PDF]

Climate of the Past, 2019
Increased accumulation of respired carbon in the deep ocean associated with enhanced efficiency of the biological carbon pump is thought to be a key mechanism of glacial CO2 drawdown.
A. Yamamoto, A. Yamamoto, A. Abe-Ouchi, A. Abe-Ouchi, R. Ohgaito, A. Ito, A. Oka   +6 more
doaj   +1 more source

Reconstruction of dissolved oxygen in the Indian Ocean from 1980 to 2019 based on machine learning techniques

Frontiers in Marine Science, 2023
Oceanic dissolved oxygen (DO) decline in the Indian Ocean has profound implications for Earth’s climate and human habitation in Eurasia and Africa. Owing to sparse observations, there is little research on DO variations, regional comparisons, and its ...
Sheng Huang, Jian Shao, Yijun Chen, Yijun Chen, Jin Qi, Jin Qi, Sensen Wu, Sensen Wu, Feng Zhang, Feng Zhang, Xianqiang He, Zhenhong Du, Zhenhong Du   +12 more
doaj   +1 more source

Unique ocean circulation pathways reshape the Indian Ocean oxygen minimum zone with warming [PDF]

Biogeosciences, 2023
The global ocean is losing oxygen with warming. Observations and Earth system model projections, however, suggest that this global ocean deoxygenation does not equate to a simple and systematic expansion of tropical oxygen minimum zones (OMZs).
S. Ditkovsky, L. Resplandy, J. Busecke
doaj   +1 more source

Differential susceptibility of reef-building corals to deoxygenation reveals remarkable hypoxia tolerance

Scientific Reports, 2021
Ocean deoxygenation threatens the persistence of coastal ecosystems worldwide. Despite an increasing awareness that coastal deoxygenation impacts tropical habitats, there remains a paucity of empirical data on the effects of oxygen limitation on reef ...
Maggie D. Johnson, Sara D. Swaminathan, Emily N. Nixon, Valerie J. Paul, Andrew H. Altieri   +4 more
doaj   +1 more source