Stable isotopes of carbon and nitrogen are mainstay tracers in diverse fields of ecology,
particularly in studies of food webs. Investigators are generally interested in tracing dietary C …

This paper provides an overview of stable isotope analysis (H, C, N, O, Si) of the macro-and
microscopic remains from aquatic organisms found in lake sediment records and their …

The aim of this study is to assess the potential of charred archaeobotanical cereal grain and
pulse seed δ 13 C and δ 15 N values to provide evidence of crop growing conditions and as …

Nitrogen (N) is a macronutrient essential to all living organisms and its availability in
Precambrian oceans may have played an important role in the early evolution and …

Abstract The southeastern United States Coastal Plain ecosystem contains baldcypress
(Taxodium distichum) swamps and grass‐dominated marshes. These ecosystems also …

The sediments that are preserved in estuarine environments (saltmarsh, riverine estuaries,
mangrove habitats, lagoons, isolation basins and fjords) contain organic matter that allows …

Rationale Stable isotope (δ13C, δ15N, δ34S values) analysis has become increasingly
important for tracing contaminant sources in environments. Pretreatment of environmental …

Bulk sedimentary nitrogen isotope profiles are often used as proxies for depositional redox
conditions, nitrogen cycling, and nutrient uptake in modern and ancient marine systems. The …

The Capitanian stage is characterized by marine anoxia possibly related to the extinction,
although the global redox structure of the Capitanian ocean has not been constrained. We …

Abstract The Ediacaran to Cambrian periods are characterized by the diversification and
extinction of metazoans, carbon-cycle perturbation, and ocean oxygenation. Ocean nutrient …