Collaborative Research: Sediment Delta15N in the Equatorial Pacific: The Effect of Diagenesis on Reconstruction of Past Changes in Nitrate Utilization

小行星9503772 作者建议探索海洋沉积物中稳定氮同位素的潜力，作为过去硝酸盐利用的示踪剂，从而初级生产。 他们将研究水柱和表面沉积物比率之间的差异，探索分析单个微体化石基质中有机物质的可行性，并将研究赤道太平洋的典型沉积物记录，以确定从冰期到间冰期的变化是否可能只是差异保存的人工制品。 ***

9503772 Altabet The authors propose to explore the potential of stable nitrogen isotopes in marine sediments as tracers of past nitrate utilization, and hence of primary production. They will examine the difference between water-column and surface sediment ratios, explore the feasibility of analyzing organic material in the matrices of individual microfossils, and will examine a typical sediment record from the equatorial Pacific to determine whether the changes seen from glacial to interglacial periods might be only an artifact of differential preservation. ***