Fe同位素数据库

通过本项目收集的不同端元Fe同位素数据库，以上数据采集地点为全球典型地质剖面、矿床等地质体。数据来源主要包括已发表文献及本项目研究所获取的数据结果。数据库要素包含样品基本信息、样品地质信息、年龄、分析物质类型、化学处理方法、主微量元素组成、以及同位素组成及误差。其中基本信息主要要素包括：样品号、位置（经纬度，地理位置描述，构造位置描述）、地质体采样位置岩体（岩浆岩）、沉积层位、钻孔信息，剖面信息等。同位素组成及误差：同位素值、误差报道、长期测试精度、分析方法、分析实验室、标样转化等。使用的仪器为多接收电感耦合等离子质谱仪（MC-ICP-MS，Neptune Plus）。数据收集时间为2020-2025年。

The database of Fe isotopes for different end-members collected through this project includes data from typical geological bodies such as global geological sections and ore deposits. The data sources mainly consist of published literature and results obtained from the research of this project. The database elements cover sample basic information, sample geological information, age, type of analyzed material, chemical treatment method, major and trace element composition, as well as isotope composition and error. Among these, the main elements of basic information include: sample number, location (latitude and longitude, geographical location description, tectonic location description), rock mass (igneous rock) at the sampling site of the geological body, sedimentary horizon, drilling information, profile information, etc. For isotope composition and error: isotope value, error report, long-term test precision, analytical method, analytical laboratory, standard sample conversion, etc. The instrument employed is a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS, Neptune Plus). The data collection period is from 2020 to 2025.