The Central Asian Orogenic Belt, as one of world-class gold economic belts, preserves a number of giant, large black shale-hosted gold deposits, while it is still debated for origin of sulfides and gold mainly due to lack of identification for multiple stages of sulfides. The Haoyaoerhudong gold deposit is hosted in a sequence of Mesoproterozoic carbonaceous and pyritic slate, phyllite, and schist that form a tight syncline along the north margin of the North China Craton. Detailed petrography of the host rocks and mineralization have defined five stages of pyrites. The earliest form of pyrite (Py₁) occurs as fine-grained dispersed pyrite in black carbonaceous slate and medium- to coarse-grained disseminated pyrite in pyrite-rich layers, contains relative low gold and high arsenic content, indicating a syn-sedimentary or diagenetic in origin. Stage II pyrite (Py₂) occurs with garnet and quartz inclusions and Py₃ occurs as pyrite veins, contains higher gold and lower As content, and are interpreted to have formed from the dissolution-reprecipitation of Py₁ during the peak metamorphism or post-peak metamorphism. Stage IV pyrite (Py₄) from the pyrite-quartz veins crosscut the metamorphic garnet, contains the highest gold concentrations and other trace elements, and is considered to have formed post-peak metamorphism. Abundant native gold, electrum, and maldonite occur as inclusions within Py₄ and monazite and in fractures that crosscut garnet. While, Py₅ with typical remobilized feature is thought to be a product of melting of former pyrites (Py₁ to Py₄) triggered by the large-scale Hercynian magmatism. The sedimentary/diagenetic Py₁ have δ³⁴S values that range from +12.4‰ to +16.2‰. Later generations of sulfides, including Py₂ to Py₅, and Ccp₂ to Ccp₃, have δ³⁴S values from +9.5‰ to +12.7‰. Monazite with maldonite inclusions from quartz-pyrite veins yielded an intercept age of 341.3 ​± ​6.6 ​Ma, while coarse grained monazite associated biotite along fractures in the reefs yielded an intercept age of 254.6 ​± ​8.2 ​Ma.

The paragenetic, textural, chemical, and isotopic data suggest three distinct gold producing episodes at Haoyaoerhudong gold deposit. Gold and arsenic were clearly initially concentrated in organic muds, and enriched along the structures of diagenetic arsenic-rich pyrite. Subsequently, accompanying metamorphism and deformation, gold was liberated from the dissolution of diagenetic pyrites to form the pyrite veins. Finally, accompanying transformation of pyrite into pyrrhotite, gold was released into the metamorphic fluids to become concentrated as native gold, electrum, and maldonite in pyrite-quart veins. Monazite with age of 341 ​Ma from quartz-pyrite veins suggests that the third major gold mineralizing event in Haoyaoerhudong occurred before the Hercynian magmatism, suggesting that the Haoyaoerhudong deposit is a typical orogenic gold deposit rather than intrusion-related deposit.

作为世界一流的黄金经济带之一，中亚造山带保留了许多巨大的黑色页岩气藏大型金矿床，而有关硫化物和金矿的成因仍在争论中，主要原因是缺乏多阶段的鉴定硫化物。郝瑶湖洞金矿床由一系列中元古代的碳质和黄铁矿板岩，千枚岩和片岩构成，沿华北克拉通北缘形成紧密的向斜线。主体岩石的详细岩相学和矿化作用定义了黄铁矿的五个阶段。黄铁矿的最早形式（Py ₁）的发生是由于黑色碳质板岩中的细粒状分散黄铁矿和富集黄铁矿的中粒至中粒状散布的黄铁矿，其金含量相对较低，砷含量较高，表明其起源为同沉积或成岩作用。II期黄铁矿（Py ₂）与石榴石和石英夹杂物一起出现，Py ₃作为黄铁矿脉出现，包含较高的金和较低的As含量，并被解释为是由Py ₁在峰变质或后变质过程中的溶解-再沉淀形成的。峰变质​​。第四阶段黄铁矿（Py ₄）从黄铁矿-石英脉横切变质石榴石，包含最高的金浓度和其他微量元素，被认为已形成峰后变质。在Py ₄和独居石中以及贯穿石榴石的裂缝中，以夹杂物的形式存在着丰富的天然金，伊图鲁姆和孔雀石。同时，具有典型迁移特征的Py ₅被认为是由大型海西岩浆作用触发的以前黄铁矿（Py ₁至Py ₄）熔化的产物。沉积/成岩PY ₁有无δ ^34个价值观该范围从+ 12.4‰至+ 16.2‰。后来的硫化物，包括Py ₂至Py ₅和Ccp₂至Ccp的₃，具有δ ^34个价值观从+ 9.5‰至+ 12.7‰。独居石与石英-黄铁矿脉中的辉绿岩包裹体，其截获年龄为341.3±6.6 Ma，而沿礁裂隙的粗粒独居石伴生黑云母的截获年龄为254.6±8.2 Ma。

共生，构造，化学和同位素数据表明，好窑二湖洞金矿床发生了三个不同的生金事件。显然，金和砷最初最初集中在有机泥中，并沿成岩性富砷黄铁矿的结构富集。随后，伴随着变质作用和变形，金从成岩黄铁矿的溶解中释放出来，形成了黄铁矿脉。最后，伴随着黄铁矿向黄铁矿的转化，金被释放到变质流体中，从而在黄铁矿夸脱的矿脉中被浓缩成天然金，伊图卢姆和绿铜矿。石英黄铁矿脉中年龄为341 Ma的独居石表明，好遥二胡洞的第三次主要金矿化事件发生在海西期岩浆作用之前，