Dataset for: Continental chemical weathering traced by lithium, strontium, and magnesium isotopes — the case of the Salitre Formation, Irecê Basin, Brazil

This dataset contains geochemical and isotopic data from Neoproterozoic carbonate rocks of the Salitre Formation (Irecê Basin, São Francisco Craton, Brazil). The data were generated to evaluate continental chemical weathering using a multi-isotopic approach, focusing on lithium (δ⁷Li), strontium (⁸⁷Sr/⁸⁶Sr), and magnesium (δ²⁶Mg) isotopes. Major and trace element concentrations and key geochemical ratios are also included to assess the degree of diagenetic alteration and sample preservation. This dataset supports the article submitted to Geochemistry, Geophysics, Geosystems (G3) entitled: "Continental chemical weathering traced by lithium, strontium, and magnesium isotopes: The case of the Salitre Formation, Irecê Basin, Brazil"本数据集包含巴西圣弗朗西斯科克拉通（São Francisco Craton）伊雷塞盆地（Irecê Basin）萨利特尔组（Salitre Formation）新元古代（Neoproterozoic）碳酸盐岩的地球化学与同位素数据。本次数据采集旨在通过多同位素方法评估大陆化学风化作用，重点聚焦锂（δ⁷Li）、锶（⁸⁷Sr/⁸⁶Sr）与镁（δ²⁶Mg）同位素。数据集同时纳入主量元素与微量元素含量及关键地球化学比值，用于评估成岩蚀变程度与样品保存状态。本数据集为提交至《地球化学、地球物理学、地球系统学》（Geochemistry, Geophysics, Geosystems，简称G3）的论文提供支撑，该论文标题为："以锂、锶、镁同位素示踪大陆化学风化——以巴西伊雷塞盆地萨利特尔组为例"。