白云山混合花岗岩套主量和微量元素、锆石U-Pb和Hf-O同位素数据集

华南地块早古生代造山运动伴随着地壳深熔作用，表现为大量的花岗岩和混合岩。通过对浅色体和花岗岩脉中锆石结晶年龄进行锆石U-Pb测定，获得其对应锆石U-Pb定年数据，通过对数据的分析发现浅色体的形成早于花岗岩脉，利用LA-ICP-MS进行岩石学和地球化学分析，主要对全岩及矿物进行主量和微量元素数据及锆石Hf-O同位素测定，其结果表明深熔作用是黑云母片麻岩在低温低压条件下流体存在熔融作用的结果。并最终结合已有数据和资料，我们猜想花岗岩类和混合岩的形成是水-熔融作用的结果，与中下地壳地幔岩浆提供的额外热量有关。

The Early Paleozoic orogeny in the South China Block was accompanied by crustal anatexis, characterized by the widespread occurrence of granites and migmatites. Zircon U-Pb dating was performed on zircons separated from leucosomes and granite dikes to constrain their crystallization ages, yielding corresponding dating datasets. Data analysis indicates that leucosomes formed prior to granite dikes. Subsequently, petrological and geochemical analyses were conducted via LA-ICP-MS, including major and trace element analyses of whole rocks and minerals, as well as zircon Hf and O isotope measurements. The results demonstrate that crustal anatexis originated from fluid-present melting of biotite gneiss under low-temperature and low-pressure conditions. Finally, integrating existing datasets and published literature, we hypothesize that the formation of granitoids and migmatites was mediated by water-flux melting, which is linked to additional heat supplied by mantle magmas in the mid-lower crust.