Nitrogen Isotopes in Deep Time

深时的氮同位素

无机化学

售   价:
194.00
发货周期:预计5-7周发货
作      者
出  版 社
出版时间
2020年12月01日
装      帧
平装
ISBN
9781108810708
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页      码
75
语      种
英文
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图书简介
Nitrogen is an essential nutrient for life, and its sources and cycling have varied over earth history. Stable isotope ratios of nitrogen compounds (expressed as δ15N, in ‰) are preserved in the sedimentary record and track these changes, providing important insights into associated biogeochemical feedbacks. Here we review the use of nitrogen stable isotope geochemistry in unravelling the evolution of the global N cycle in deep time. We highlight difficulties with preservation, unambiguous interpretations, and local versus global effects. We end with several case studies illustrating how depositional and stratigraphic context is crucial in reliably interpreting δ15N records in ancient marine sediments, both in ancient anoxic (Archean) and more recent well oxygenated (Phanerozoic) environments.
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