Chemical composition data of sedimentary rocks from the Permian-Triassic boundary and Cretaceous oceanic anoxic events

Bulk chemical composition data of sedimentary rocks from the Permian-Triassic boundary and Cretaceous oceanic anoxic events. This is a supplementary dataset for “Geochemical variations in sedimentary records of oxygen-depleted marine environments in representative geological periods: New perspectives from a multivariate statistical technique” by Moei Yano et al.本数据集涵盖二叠纪-三叠纪界线与白垩纪海洋缺氧事件沉积岩的全量化学成分数据，是Moei Yano等人发表的论文《典型地质时期缺氧海洋环境沉积记录的地球化学变化：基于多元统计技术的新视角》的补充数据集。