华北克拉通（NCC）是世界上最著名的古老陆块之一，是中国大陆的主要构造单元，其90%的陆壳形成于早前寒武纪，经历了38亿年的漫长演化历史，记录了几乎所有的地壳早期发展以来的重大构造事件。本专题库搜集了华北克拉通岩浆岩的全岩主微量数据和同位素数据、锆石原位同位素数据以及年代学数据。期望通过这个数据库支持地质学家进一步探索华北克拉通的壳幔交换、岩石圈地幔改造和地壳生长过程。

The North China Craton (NCC) is one of the most famous ancient land mass in the world and the main tectonic unit of the Chinese mainland. 90% of its continental crust was formed in the early Precambrian, and it has experienced a long evolutionary history of 3.8 billion years, recording almost all the major tectonic events since the early development of the crust. We have collected whole-rock geochemical and isotopic data, zircon in situ isotopic data and geochronological data from the North China Craton. We hope that this database would support geologists to further explore the crust-mantle interaction, lithospheric mantle transformation and crustal growth processes in the North China Craton.

华北克拉通岩浆岩简图