中国西昆仑-喀喇昆仑造山带白龙山稀有金属伟晶岩矿物化学数据

数据包括白云母和铌铁矿族矿物的化学成分数据。样品采集自西昆仑-喀喇昆仑造山带白龙山地区稀有金属伟晶岩。矿物主量元素数据通过电子探针分析获得，矿物微量元素数据通过激光剥蚀电感耦合等离子体质谱仪分析获得。上述数据均在中国科学院广州地球化学研究所分析完成。根据所获得的数据，识别出原生和次生两类白云母，确认铌铁矿族矿物形成于岩浆-热液过程中的三个阶段。熔体交代过程导致了白云母中Li等元素的富集，而流体交代则导致白云母中B和Rb等元素的流失。

The dataset comprises chemical composition data for muscovite and minerals of the columbite-tantalite group. All samples were collected from rare-metal pegmatites in the Bailongshan area of the West Kunlun-Karakoram orogenic belt. Major element data of the minerals were obtained via electron probe microanalysis (EPMA), while trace element data were acquired using laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS). All aforementioned analyses were conducted at the Guangzhou Institute of Geochemistry, Chinese Academy of Sciences. Based on the acquired dataset, two types of muscovite (primary and secondary) were identified, and it was confirmed that columbite-tantalite group minerals formed during three stages of magmatic-hydrothermal processes. Melt metasomatism led to the enrichment of elements such as Li in muscovite, whereas fluid metasomatism resulted in the loss of elements including B and Rb in muscovite.