Tasiilaq hydrothermal graphite, nitrogen content (NERC Grant NE/V010824/1)

Measurements of the nitrogen content of hydrothermal graphite deposits and associated silicate rocks. The samples are of Paleoproterozoic age and allow constraining the behavior of nitrogen in abiotic hydrothermal graphite-forming systems. The results provide context for evaluating the biogenicity of Eoarchean graphite. More details are presented in Stüeken, E.E., Szilas, K. and van Hinsberg, V.J., 2023, Chemical Geology, 617, p.121274.本数据集包含热液石墨矿床及其伴生硅酸盐岩的氮含量测定数据。所有样品的形成时代为古元古代，可用于限定非生物热液成石墨体系中氮的地球化学行为。本数据集的研究结果为评估始太古代石墨的生物成因性提供了重要约束依据。详细信息详见Stüeken E.E.、Szilas K.与van Hinsberg V.J.于2023年发表于《化学地质学（Chemical Geology）》第617卷第121274页的研究成果。