Roles of natural organic matter in fixing uranium: Evidences from uranium oxidation state and functional groups of organic matter

The data are consisted of the contents and chemical valence states of total organic carbon (TOC) and U as well as mineral composition of uranium-bearing mineral around pyrites. By the correlation of TOC and uranium contents, as well as correlations of the relative atomic content of different chemical valence states of elements U and C, i.e., (U (IV) and U(VI)) vs C-O, and (U (IV) and U(VI)) vs ((O-C=O)+(C=O)) in attempt to obtain the information about roles of natural organic matter in fixing uranium from the views of uranium oxidation state and functional groups of organic matter. Moreover, the data about mineral composition of uranium-bearing mineral around pyrites is used to identify autunite, indicating that pyrite and microbial activities may participate in uranium mineralization. Analyzing the relationship between Y2O3 and P2O5 is used to evidence the sedimentary environment during the mineralization period.

本数据集汇集了总有机碳（TOC）、铀及其化学价态的含量，以及围绕黄铁矿的铀矿物成分。通过对TOC和铀含量，以及元素U和C不同化学价态相对原子含量（即(U(IV))和(U(VI))与C-O，以及(U(IV))和(U(VI))与((O-C=O)+(C=O)))之间的相关性分析，旨在从铀氧化态和有机物功能团的角度获取关于天然有机物在铀固定作用中的信息。此外，利用围绕黄铁矿的铀矿物成分数据，用于识别独居石，暗示黄铁矿和微生物活动可能参与了铀的矿物化过程。通过分析Y2O3与P2O5的关系，用以证明成矿期的沉积环境。