板内和岛弧玄武岩Mo同位素数据

本数据集包含青藏高原东南三江地区洋岛玄武岩（OIB型）的钼（Mo）同位素组成数据，可用于探讨地幔柱来源基性岩中Mo同位素异常的成因机制。样品经研磨、消解、预测浓度和与双稀释混合后，经过化学纯化分离，在中国地质大学（北京）同位素地球化学实验室，利用Neptune Plus型多接收等离子体质谱仪（MC-ICP-MS）进行测定。每个样品均进行三次重复测试，采用同位素双稀释剂法进行质量歧视校正，测试误差以2SD表示。测试过程中同步分析的标准物质结果与国际推荐值一致，确保了数据的准确度与可靠性。该数据集对于揭示地幔中再循环组分的来源、理解青藏高原后碰撞阶段深部演化过程具有重要意义。This dataset contains molybdenum (Mo) isotopic composition data of oceanic island basalt (OIB-type) from the Sanjiang region, southeastern Tibetan Plateau, which can be used to investigate the genetic mechanism of Mo isotope anomalies in mantle plume-derived mafic rocks. After grinding, digestion, concentration prediction and mixing with double spike, the samples were chemically purified and separated, then measured using a Neptune Plus multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) at the Isotope Geochemistry Laboratory of China University of Geosciences (Beijing). Each sample was tested three times in replicate, with mass discrimination correction performed using the isotope double spike method, and the measurement errors are reported as 2SD. The results of reference materials analyzed synchronously during the measurement are consistent with the internationally recommended values, which ensures the accuracy and reliability of the dataset. This dataset is of great significance for revealing the sources of recycled components in the mantle and understanding the deep evolutionary processes during the post-collisional stage of the Tibetan Plateau.

搜集汇总

背景与挑战

背景概述

本数据集聚焦于青藏高原东南三江地区的板内和岛弧玄武岩，提供了详细的钼（Mo）同位素组成数据，旨在研究地幔柱来源基性岩中Mo同位素异常的成因机制。数据通过严格的实验室流程（包括样品处理、MC-ICP-MS测定和双稀释剂法校正）确保准确性，对理解青藏高原后碰撞阶段深部演化过程具有重要科学价值。数据集覆盖新生代时间范围，空间上位于青藏高原东南部，以Excel格式存储，便于直接使用和分析。