文章基本信息

标题：Nitrogen isotope fractionation by alternative nitrogenases and past ocean anoxia
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作者：Xinning Zhang ; Daniel M. Sigman ; François M. M. Morel 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2014
卷号：111
期号：13
页码：4782-4787
DOI：10.1073/pnas.1402976111
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Biological nitrogen fixation constitutes the main input of fixed nitrogen to Earth's ecosystems, and its isotope effect is a key parameter in isotope-based interpretations of the N cycle. The nitrogen isotopic composition ({delta}15N) of newly fixed N is currently believed to be [~]-1{per thousand
关键词：stable isotopes ; trace metals ; paleooceanography ; biogeochemistry