A reinterpretation of the crustal N-isotope record: evidence for a N-15-enriched Archean atmosphere?

Jia, Yiefei; Kerrich, Robert

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A reinterpretation of the crustal N-isotope record: evidence for a N-15-enriched Archean atmosphere?

Date

2004

Authors

Jia, Yiefei

Kerrich, Robert

Publisher

Blackwell Publishing Ltd

Abstract

A new compilation of N-isotope and abundance data for metasedimentary rocks, and hyrdothermal micas that proxy for bulk crust, show systematic patterns. (1) δ15N values of kerogen in Precambrian cherts are more negative relative to siliciclastic counterp