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发育在华北板块西北缘中元古界渣尔泰山群中 4个大型 超大型铜多金属矿床是属于层控热水沉积矿床 .阐明了这些矿床是形成于狼山 渣尔泰山中元古代裂陷槽发育的中 晚期阶段 .提出这些大型 超大型矿床的形成具有 4个重要的必要条件 :( 1 )有利的成矿地质背景和构造环境 ;( 2 )具有丰富的成矿物质来源 ;( 3)有利的沉积岩相 古地理条件 ;( 4)成矿过程中突变事件的发生 .这一规律性的认识不仅对我国 ,而且对世界其它地区同类矿床的成因和分布规律具有普遍的意义
Four large-scale ultra-large Cu-polymetallic deposits developed in the Zarde Taishan Group of the Middle Proterozoic in the northwestern margin of the North China Plateau belong to strata-hosted hydrothermal sedimentary deposits, indicating that these deposits were formed in the Mesoproterozoic rifts In the middle and late stages of the trough development, it is proposed that there are four important prerequisites for the formation of these large-scale superlarge deposits: (1) favorable metallogenic geological background and tectonic setting; (2) rich source of metallogenic materials; (3) Favorable sedimentary facies palaeogeographic conditions, and (4) the occurrence of catastrophic events during mineralization. This understanding of regularities is of general importance not only for the genesis and distribution of similar deposits in our country but also in other parts of the world