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由块状黄铜矿—磁铁矿透镜体组成的太古代层状金色丛林(Golden Grove)矿床的δ~(34)S_(CDT)值范围从-1.4per mil到+4.4 permil(平均+1.0 permid。类似的分布也来自矿化层(范围-2.5到+4.0,平均+0.9)和富Zn的上盘燧石层(范围-0.1到4.3,平均+1.6)浸染状的硫化物中。由于沉淀和成岩的影响,在共生的硫化物系统中同位素具不平衡性,通过绿片岩相变质作用而保存下来。对于地层最高的铜透镜体平均δ~(34)S值中两个per mil的减损说明当硫化物沉积时,在矿液中向高fo_2的临时变化。这些资料证实了海底硫化物的堆积模式是在活动构造环境中发生间隙性喷发作用的结果。说明岩浆(少年期)硫是矿液中硫的主要来源。
The δ ~ (34) S CDT values of the Archean stratigraphic Golden Grove deposits, which consist of massive chalcopyrite-magnetite lenses, range from -1.4per mil to +4.4 permil (+1.0 on average Similar distributions also come from disseminated sulfide in the mineralized layer (range -2.5 to +4.0, average +0.9) and the Zn-rich supra-plate flint layer (range -0.1 to 4.3, average +1.6) And diagenesis, the isotopes in the symbiotic sulphide system are imbalanced and are preserved by the metamorphism of greenschist.For the mean value of δ ~ (34) S in the highest stratigraphic copper lens, the loss of two per mil Explain the temporary changes to high fo_2 in sulphate deposits when the sulphides are deposited These data confirm that the accumulation pattern of seabed sulphides is the result of the episodic eruptions in the active tectonic setting, indicating that magmatic (adolescent) sulfur is The main source of sulfur in the ore.