| 马鞍桥金矿床地质-地球化学特征及成因探讨 |
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| 引用本文： | 栾长青,唐益群,云正文.马鞍桥金矿床地质-地球化学特征及成因探讨[J].地质找矿论丛,2007,22(3):190-194. |
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| 作者姓名： | 栾长青 唐益群 云正文 |
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| 作者单位： | 1. 同济大学,岩土及地下工程教育部重点实验室,上海,200092
2. 长庆油田,勘探开发研究院,西安,710021 |
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| 基金项目： | 中国地质调查局区域地质调查项目 |
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| 摘 要： | 马鞍桥金矿床具有明显的层控特点,矿化范围大、形态较规则、工业矿体分布较局限,矿石品位较低,金矿床受区域性大断裂一侧的脆-韧性剪切带控制,金矿化产于剪切带中较低序次脆性破裂面中,深部含矿热流体主要是同生水、大气降水和少量岩浆水,多数金属硫化物的形成具有多期性,而金的成矿主要为一期,二者不具明显的相关关系.马鞍桥金矿为受脆-韧性剪切带控制的微细浸染型金矿,成因上属于多来源地下热水渗滤型金矿.
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| 关 键 词： | 马鞍桥金矿 地质-地球化学特征 矿床成因 陕西省 |
| 文章编号： | 1001-1412（2007）03-0190-05 |
| 收稿时间： | 2007/4/10 0:00:00 |
| 修稿时间： | 2007-04-10 |
GEOLOGICAL-GEOCHEMICAL CHARACTERISTICS AND GENESIS OF MA'ANQIAO GOLD DEPOSIT |
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| LUAN Chang-qing,TANG Yi-qun and YUN Zheng-wen.GEOLOGICAL-GEOCHEMICAL CHARACTERISTICS AND GENESIS OF MA''''ANQIAO GOLD DEPOSIT[J].Contributions to Geology and Mineral Resources Research,2007,22(3):190-194. |
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| Authors: | LUAN Chang-qing TANG Yi-qun and YUN Zheng-wen |
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| Abstract: | Ma'anqiao gold deposit is characteristic of stratabound,large area mineralization,regular ore bodies and low grade.The deposit is controlled by brittle-ductile shear zone in one side of a deep regional fault.Gold mineralization occurs at the low order brittle fractural plane in the shear zone.The deep heat ore fluid is composed of cognate water,meteoroid water, and a small amount of magmatic water.Sulfides are formed in multiple stages but gold is mainly deposited in one stage showing no obvious correlation.It is a brittle-ductile shear zone-controlled infiltrated micro-disseminated gold ore deposit with multiple sources of fluid. |
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| Keywords: | Ma'anqiao gold deposit geological-geochemical characteristics genesis Shaanxi province |
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