国家自然科学基金项目“扬子克拉通西部砂矿金刚石多晶聚合体的形成机制及其对深部过程的响应”编号:41373025和“华北克拉通东部金刚石多晶的微结构、微成分标型及成因意义”编号:41073021资助.Project supported by the National Natural Science Foundation of China "Formation mechanism of placer diamond polycrystalline aggregates from the western part of the Yangtze Craton and their response to deep earth"No.41373025,"Study on the micro-structure,micro-component typomorphic characteristics of natural diamond polycrystalline from North China craton and their geological significance" No.41073021.