End-Permian catastrophe by a bolide impact: evidence of a gigantic release of sulfur from the mantle
Data(s) |
01/09/2001
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Resumo |
Our studies in southern China have revealed a remarkable sulfur and strontium isotope excursion at the end of the Permian, along with a coincident concentration of impact- metamorphosed grains and kaolinite and a significant decrease in manganese, phosphorous, calcium, and microfossils (foraminifera). These data suggest that an asteroid or a comet hit the ocean at the end of Permian time and caused a rapid and massive release of sulfur from the mantle to the ocean-atmosphere system, leading to significant oxygen consumption, acid rain, and the most severe biotic crisis in the history of life on Earth.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Geological Society of America |
Relação |
http://dro.deakin.edu.au/eserv/DU:30008430/n20011135.pdf http://geology.gsapubs.org/cgi/reprint/29/9/815 |
Direitos |
2001, Geological Society of America |
Palavras-Chave | #mass extinctions #Permian #S-34/S-32 #Sr-87/Sr-86 #impact metamorphism #elements #clay minerals |
Tipo |
Journal Article |