The O-18/O-16 and O-17/O-16 ratios in atmospheric nitrous oxide: A mass-independent anomaly

被引：100
|
作者：
Cliff, SS [1 ]
Thiemens, MH [1 ]
机构：
[1] UNIV CALIF SAN DIEGO,DEPT CHEM,LA JOLLA,CA 92093
来源：
SCIENCE | 1997年 / 278卷 / 5344期
关键词：
D O I：
10.1126/science.278.5344.1774
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：
Measurements of the oxygen isotope ratios (O-18/O-16 and O-17/O-16) in atmosphere nitrous oxide (N2O) from La Jolla, Pasadena, and the White Mountain Research Station (elevation, 3801 meters) in California and the White Sands Missile Range in New Mexico show that N2O has a mass-independent composition. These data suggest the presence of a previously undefined atmospheric process. The La Jolla samples can be explained by a mixing between an atmospherically derived source of mass-independent N2O and biologically derived mass-dependent N2O. Possible origins of the mass-independent anomaly in N2O are discussed.
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收藏
页码：1774 / 1776
页数：3
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