High salinity and hypoxic conditions may have promoted denitrification, leading to enrichment of 15 N in residual nitrate or organic nitrogen and resulting in a positive trend in δ 15 N values 40 .
← all excerpts
Geochemical study on nitrogen isotope composition, speciation distribution, and influencing factors of vitrinite-rich coal seams during the Late Carboniferous.
1
—
—