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

The 18O/16O and 17O/16O ratios in atmospheric nitrous oxide: A mass-independent anomaly
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大气一氧化二氮中的 18O/16O 和 17O/16O 比率:与质量无关的异常

DOI:
10.1126/science.278.5344.1774
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发表时间:
1997
期刊:
影响因子:
56.9
通讯作者:
Thiemens
Thiemens
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Cliff;Thiemens

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从帕萨迪纳的拉霍亚、加州的白色山研究站(海拔3801米)和新墨西哥州的白色沙滩导弹靶场对大气中一氧化二氮(N2 O)的氧同位素比(18 O/16 O和17 O/16 O)进行的测量表明,N2 O具有与质量无关的组成。这些数据表明存在以前未定义的大气过程。拉霍亚样品可以解释为大气中产生的质量无关的N2 O和生物来源的质量相关的N2 O之间的混合。N2 O的质量无关的异常的可能起源进行了讨论。
Measurements of the oxygen isotope ratios (18O/16O and 17O/16O) in atmospheric 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.