期刊
ELEMENTS
卷 9, 期 5, 页码 359-366出版社
MINERALOGICAL SOC AMER
DOI: 10.2113/gselements.9.5.359
关键词
nitrogen; ammonium; chemical geodynamics; degassing; recycling
Nitrogen shows unique features among the volatile elements. To be cycled, atmospheric di-nitrogen (N-2) needs to be reduced, which is efficiently done by bacterial processes. Crustal uptake of nitrogen and its eventual recycling into the mantle is thus primarily mediated by the biosphere. There is also a marked isotopic contrast between the mantle (N-15 depleted) and the Earth's surface (N-15 enriched). Although the cause of such disequilibrium is not fully understood, it provides insights into mantle-surface interactions over geological time, including recycling of surface sediments into the deep mantle.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据