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黄埠岭金矿床位于灵北断裂带南西段,主要控矿构造为灵北主断裂上盘次级断裂,直接赋矿围岩主要为黄铁绢英岩。红化蚀变在含矿断裂上、下盘的玲珑型花岗岩中均有发育。岩石化学分析显示,玲珑型花岗岩在红化蚀变中K2 O含量降低,红化蚀变过程中有碳酸盐矿物的聚集,且红化蚀变岩是黄铁绢英岩中铁质的提供者。矿物流体包裹体成分分析显示,包裹体液相成分中富SO2-4,阴离子质量分数SO2-4>Cl->F-。黄埠岭金矿床的形成可以表述为电解成矿机制,红化蚀变岩反映了该体系中阳极附近的水岩反应条件和性质,为金元素的活化区。含金的黄铁绢英岩化蚀变岩反映了该体系中阴极附近的水岩反应条件和性质,为金矿物的聚集区,Au+的沉淀与电极反应有关。水的电离反应是维系该成矿体系的关键之一。

Huangbuling Gold Deposit is located in the southwestern part of Lingbei fault zone. The ore bodies oc-cur in the subsidiary fractures in the hanging wall of Lingbei main fracture. The direct ore-hosting rock is beresite. Reddenization appears in Linglong granite both of the hanging wall and the foot wall of ore-hosting faults. According to petrochemistry analysis,K2 O content decreases during reddenization of Linglong granite. Carbonate minerals gather in the reddenization rock. And the reddenization rocks is also the provider of iron in beresite. According to the composi-tion analysis of mineral fluid inclusion,SO2-4 is rich in the liquid phases and the anion mass concentration ranks SO2-4 >Cl- >F-. The forming of Huangbuling gold deposit can be expressed as an electrolytic metallogenic mechanism. Red-denization reflects the condition and property of water-rock interaction near the positive pole of the system,being the active gold region. Gold-bearing beresitization altered rocks represented the condition and property of water-rock in-teraction near the negative pole,being the gold-enriching area. The precipitation of Au+ is related to the electrode re-action. The ionization reaction of water is the key to keep the reaction system.

参考文献

[1] 章邦桐.红化蚀变形成机理的初步探讨[J].放射性地質,1980(05):385-389.
[2] 丁式江;翟裕生;邓军.胶东焦家金矿蚀变岩中元素的质量迁移[J].地质与勘探,2000(4):28-31.
[3] 杨斌;王慧;陈燕;阚靖.胶西北大尹格庄金矿床电解成矿机理及对找矿的启示[J].黄金,2015(3):10-13.
[4] 胡军霞;海春旭.电解还原水的研究进展[J].国外医药(抗生素分册),2012(5):204-206.
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