DC pole | Wartość | Język |
dc.contributor.author | Rakociński, Michał | - |
dc.contributor.author | Marynowski, Leszek | - |
dc.contributor.author | Pisarzowska, Agnieszka | - |
dc.contributor.author | Bełdowski, Jacek | - |
dc.contributor.author | Siedlewicz, Grzegorz | - |
dc.contributor.author | Zatoń, Michał | - |
dc.contributor.author | Perri, Maria Cristina | - |
dc.contributor.author | Spalletta, Claudia | - |
dc.contributor.author | Schönlaub, Hans Peter | - |
dc.date.accessioned | 2020-05-15T13:53:51Z | - |
dc.date.available | 2020-05-15T13:53:51Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | "Scientific Reports" Vol. 10 (2020), art. no 7344 | pl_PL |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/14074 | - |
dc.description.abstract | The end-Devonian global Hangenberg event (359 Ma) is among the most devastating mass extinction
events in Earth’s history, albeit not one of the “Big Five”. This extinction is linked to worldwide anoxia
caused by global climatic changes. These changes could have been driven by astronomical forcing
and volcanic cataclysm, but ultimate causes of the extinction still remain unclear. Here we report
anomalously high mercury (Hg) concentration in marine deposits encompassing the Hangenberg event
from Italy and Austria (Carnic Alps). The Hangenberg event recorded in the sections investigated can be
here interpreted as caused by extensive volcanic activity of large igneous provinces (LIPs), arc volcanism
and/or hydrothermal activity. Our results (very large Hg anomalies) imply volcanism as a most possible
cause of the Hangenberg event, similar to other first order mass extinctions during the Phanerozoic.
For the first time we show that apart from anoxia, proximate kill mechanism of aquatic life during
the event could have been methylmercury formed by biomethylation of a volcanically derived, huge
concentration of inorganic Hg supplied to the ocean. Methylmercury as a much more toxic Hg form,
potentially could have had a devastating impact on end-Devonian biodiversity, causing the extinction
of many pelagic species. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Methylmercury | pl_PL |
dc.subject | poisoning | pl_PL |
dc.subject | the end-Devonian Mass Extinction | pl_PL |
dc.title | Volcanic related methylmercury poisoning as the possible driver of the end-Devonian Mass Extinction | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.identifier.doi | 10.1038/s41598-020-64104-2 | - |
Pojawia się w kolekcji: | Artykuły (WNP)
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