Mikko TuomiMarine #anoxia is characterized by the oceans being severely depleted in dissolved #oxygen, making them toxic and thus having devastating impacts on the organisms inhabiting them.
Global warming caused widespread #ocean anoxia 93 million years ago.
Persistent low-oxygen layers increase in number and size with enhanced warming of the oceans, forming a thick zone at depth below a highly productive thin surface layer that is oxygen-rich.
#climate
https://phys.org/news/2024-01-global-widespread-ocean-anoxia-million.html
Global warming caused widespread ocean anoxia 93 million years ago, deep-sea sediments research suggests
Marine anoxia is characterized by the oceans being severely depleted in dissolved oxygen, making them toxic and thus having devastating impacts on the organisms inhabiting them. One such event, known as Oceanic Anoxic Event 2 (OAE2), occurred ~93.5 million years ago across the Cenomanian-Turonian boundary of the Upper Cretaceous and lasted for up to 700,000 years.