End-Permian catastrophe by a bolide impact: Evidence of a gigantic release of sulfur from the mantle
Abstract
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.
- Publication:
-
Geology
- Pub Date:
- September 2001
- DOI:
- 10.1130/0091-7613(2001)029<0815:EPCBAB>2.0.CO;2
- Bibcode:
- 2001Geo....29..815K