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Abrupt global-ocean anoxia during the Late Ordovician–early Silurian detected using uranium isotopes of marine carbonates
Widespread marine anoxia is hypothesized as the trigger for the second pulse of the Late Ordovician (Hirnantian) mass extinction based on lithologic and geochemical proxies that record local bottom waters or porewaters. We test the anoxia hypothesis using δ(238)U values of marine limestones as a glo...
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| Pubblicato in: | Proc Natl Acad Sci U S A |
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| Autori principali: | , , , , , |
| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
National Academy of Sciences
2018
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| Soggetti: | |
| Accesso online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6003337/ https://ncbi.nlm.nih.gov/pubmed/29784792 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.1802438115 |
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