The explosive breccia rocks were firstly discovered in the Laoshankou Au Cu deposit. The macroscopic and microscopic characteristics and significance of breccia for mineralization were discussed.

• 青河县老山口金铜矿区首次发现隐爆角砾岩。根据野外第一手资料，分析探讨了隐爆角砾岩的宏观、微观特征及成矿意义。