【摘要】 隐爆角砾岩筒的成岩作用方式可分为底侵隐爆和侧向隐爆,不同方式形成的隐爆角砾岩筒,其控矿特征不尽相同,并可能形成不同的矿床类型组合。在地质勘查工作中,要根据不同类型的隐爆角砾岩筒,有针对性地寻找相关类型矿床。在底侵隐爆形成的隐爆角砾岩筒的深部可能会存在斑岩型矿床,但在侧向隐爆形成的隐爆角砾岩筒的深部,由于其底部与围岩直接接触,表现为"无根",因此,不存在斑岩型矿床的可能。通过研究,认为祁雨沟矿田内隐爆角砾岩筒的成岩作用方式为侧向隐爆,隐爆角砾岩筒表现为"无根"角砾岩筒,为残缺的斑岩成矿系统,在隐爆角砾岩筒的深部不存在斑岩型矿床的可能。更多还原

【Abstract】 The diagenesis of breccia tubes crypto-explosive can be divided into bottom-invaded or lateral ones.With diverse ore-controlling characteristics,dissimilar crypto-explosive breccia tubes are formed,and different ore types may be combined.During geological exploration work,we should follow diverse types of crypto-explosive breccia tubes,and by targeting find out related types of ore deposits.There might be Porphyry deposit in the deep of bottom-invading breccia pipe.But in the deep of breccia tubes by lateral crypto-explosive,the bottom of which contact directly with surrounding rocks,performing as "rootless".Therefore,there can’t be any porphyry deposit.After study,I think the diagenesis mode of breccia pipes in Qiyugou mining field is lateral crypto-explosion,the bottom of which is direct contact with the wall rock,called as "rootless" breccia pipes.It is impossible to form porphyry deposits in the bottom of breccia pipes crypto-explosion,and incomplete porphyry mineralization system.更多还原