FULLERENES IN THE CRETACEOUS-TERTIARY BOUNDARY-LAYER

被引：107

作者：

HEYMANN, D

CHIBANTE, LPF

BROOKS, RR

WOLBACH, WS

SMALLEY, RE

机构：

[1] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77251

[2] RICE UNIV,DEPT CHEM,HOUSTON,TX 77251

[3] RICE UNIV,DEPT PHYS,HOUSTON,TX 77251

[4] MASSEY UNIV,DEPT SOILS SCI,PALMERSTON NORTH,NEW ZEALAND

[5] ILLINOIS WESLEYAN UNIV,DEPT CHEM,BLOOMINGTON,IL 61702

来源：

SCIENCE | 1994年 / 265卷 / 5172期

关键词：

D O I：

10.1126/science.265.5172.645

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 C-60 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 C-60 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.

引用

页码：645 / 647

页数：3

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