| 阳山超大型微细浸染金矿床成矿条件与控矿因素 |
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| 引用本文：.2009.Metallogenic condition and ore-control factor of Super-large scale Yangshan gold deposit of Carlin-Carlin-like compound type in Gansu, China[J].Mineral Deposits,28(Z):35~42 |
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| 中文摘要:阳山金矿于世纪之交勘查并扩大为超大微细浸染型金矿，矿床形成于特殊地质背景，受地层、浅成花岗斑岩、韧-脆性剪切构造及热液活动的多种因素的叠加与改造控制，研究认为矿床具有卡林型和类卡林型2种矿化类型特点，卡林型矿化于韧性剪切早、早-中期阶段和晚期阶段，分别出现含砷黄铁矿-毒砂-次显微金-白云石-石英矿化组合及黄铁矿-辉锑矿-石英方解石矿化组合，Au-As-Sb-Hg的成矿地球化学组合；类卡林型矿化出现在脆性中-晚期阶段，以黄铁矿-毒砂-自然金-碲铋矿-白云石-石英矿化（含黄铜矿-闪锌矿-方铅矿）组合为特征，Au-As-Cu-Pb-Zn-Te-Bi成矿地球化学组合。 |
| 中文关键词:地质学 微细浸染型金矿 超大型 成矿条件与控矿因素 阳山 秦岭造山带 |
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| Metallogenic condition and ore-control factor of Super-large scale Yangshan gold deposit of Carlin-Carlin-like compound type in Gansu, China |
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| Abstract:Yang Shan gold deposit is a micro disseminated gold deposit, which had being explored since the transitional period from the 20th century to the 21st and became a super-large scale gold depoisit. The deposit was controlled by special geologic setting，the stratum and gold minerals enriched by superposition and transformation of brittle-ductile shear, hydrothermal activities and supergene granite porphyry. According to investigation, the gold deposit has the characteristics of both carlin type and carlin-like type. The Carlin-type ores was formed during the early, early to middle and late stage of the ductile shearing, its alteration minerals include As-bearing pyrite, arsenopyrite, submicro-Au, dolomite, quartz (or pyrite, stibnite, quartz, calcite) with Au-As-Sb-Hg element association. The Carlin-like type ore was formed during the middle to late stage of the brittle shearing, its alteration minerals are pyrite, arsenopyrite, natural gold, tellurobismuthite, submicro-Au, dolomite, quartz (with chalcopyrite, chalcopyrite and chalcopyrite) with Au-As-Cu-Pb-Zn-Te-Bi element association. |
| keywords:geology, micro disseminated gold deposit, super-large scale, metallogenic condition and ore-control factor, Yangshan gold deposit, Qinling orogenic belt |
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