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...

Descripción completa

Detalles Bibliográficos
Autores principales: Bartlett, Rick, Elrick, Maya, Wheeley, James R., Polyak, Victor, Desrochers, André, Asmerom, Yemane
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2018
Materias:
Physical Sciences
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003337/
https://www.ncbi.nlm.nih.gov/pubmed/29784792
http://dx.doi.org/10.1073/pnas.1802438115

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003337/
https://www.ncbi.nlm.nih.gov/pubmed/29784792
http://dx.doi.org/10.1073/pnas.1802438115

Ejemplares similares