Fe isotopic ratios and major, trace, and rare earth element data for Mn nodules and Fe-Mn crusts from the Central Indian Basin (CIB), Indian Ocean

d56Fe and geochemical compositions of Mn nodules and Fe-Mn crust samples from the Central Indian Basin of the Indian Ocean are measured and presented here. The Fe isotope compositions are measured using a Nu HR MC-ICP-MS, major elements using AAS, and the trace and rare earth elements (REEs) using ICP-MS. Methods of analysis and values obtained on reference material are documented.本数据集测定并呈现了采自印度洋中央印度海盆的锰结核与铁锰结壳样品的d56Fe及地球化学组成。其中铁同位素组成采用Nu型高分辨多接收电感耦合等离子体质谱仪（Nu HR MC-ICP-MS）测定，主量元素通过原子吸收光谱法（AAS）测定，微量与稀土元素（Rare Earth Elements，REEs）借助电感耦合等离子体质谱仪（ICP-MS）完成检测。本数据集完整记载了分析方法及参考物质的实测结果。