Publication Date:
2011-08-24
Description:
The evolution of non-photosynthetic sulphide-oxidizing bacteria was contemporaneous with a large shift in the isotopic composition of biogenic sedimentary sulphides between 0.64 and 1.05 billion years ago. Both events were probably driven by a rise in atmospheric oxygen concentrations to greater than 5-18% of present levels--a change that may also have triggered the evolution of animals.
Keywords:
Meteorology and Climatology
Type:
Nature (ISSN 0028-0836); Volume 382; 6587; 127-32
Format:
text