Global nickel anomaly links Siberian Traps eruptions and the latest Permian mass extinction

Michael Rampino, Sedelia Rodriguez, Eva Baransky, Yue Cai

Research output: Contribution to journalArticle

Abstract

Anomalous peaks of nickel abundance have been reported in Permian-Triassic boundary sections in China, Israel, Eastern Europe, Spitzbergen, and the Austrian Carnic Alps. New solution ICP-MS results of enhanced nickel from P-T boundary sections in Hungary, Japan, and Spiti, India suggest that the nickel anomalies at the end of the Permian were a worldwide phenomenon. We propose that the source of the nickel anomalies at the P-T boundary were Ni-rich volatiles released by the Siberian volcanism, and by coeval Ni-rich magma intrusions. The peaks in nickel abundance correlate with negative δ13C and δ18O anomalies, suggesting that explosive reactions between magma and coal during the Siberian flood-basalt eruptions released large amounts of CO2 and CH4 into the atmosphere, causing severe global warming and subsequent mass extinction. The nickel anomalies may provide a timeline in P-T boundary sections, and the timing of the peaks supports the Siberian Traps as a contributor to the latest Permian mass extinction.

Original languageEnglish (US)
Article number12416
JournalScientific Reports
Volume7
Issue number1
DOIs
StatePublished - Dec 1 2017

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mass extinction
nickel
Permian
volcanic eruption
anomaly
magma
Permian-Triassic boundary
flood basalt
explosive
global warming
volcanism
coal
atmosphere

ASJC Scopus subject areas

  • General

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Global nickel anomaly links Siberian Traps eruptions and the latest Permian mass extinction. / Rampino, Michael; Rodriguez, Sedelia; Baransky, Eva; Cai, Yue.

In: Scientific Reports, Vol. 7, No. 1, 12416, 01.12.2017.

Research output: Contribution to journalArticle

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