Fullerenes in the Cretaceous-Tertiary Boundary Layer

Details Fullerenes in the Cretaceous-Tertiary Boundary Layer Fullerenes in the Cretaceous-Tertiary Boundary Layer

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994sci...265..645h&link_type=abstract

Science, Volume 265, Issue 5172, pp. 645-647

Physics

23

Scientific paper

High-pressure liquid chromatography with ultraviolet-visible spectral analysis of toluene extracts of samples from two Cretaceous-Tertiary (K-T) boundary sites in New Zealand has revealed the presence of C60 at concentrations of 0.1 to 0.2 parts per million of the associated soot. This technique verified also that fullerenes are produced in similar amounts in the soots of common flames under ambient atmospheric conditions. Therefore, the C60 in the K-T boundary layer may have originated in the extensive wildfires that were associated with the cataclysmic impact event that terminated the Mezozoic era about 65 million years ago.

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