| 河北省牛圈银(金)矿床成因初探 |
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| 引用本文： | 王艳辉.河北省牛圈银(金)矿床成因初探[J].地质调查与研究,2010,33(1):35-41. |
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| 作者姓名： | 王艳辉 |
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| 作者单位： | 天津华北地质勘查总院,天津,300181 |
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| 基金项目： | 国家白银储量承包勘查基金 |
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| 摘 要： | 通过对牛圈银(金)矿床的细粒花岗岩、隐爆角砾岩、同位素特征等方面研究,笔者认为与矿床关系密切的隐爆角砾岩(次火山岩)由基底岩石的部分重熔形成,而成矿物质来源于下地壳-上地幔重熔岩浆;成矿热液为重熔岩浆分异演化形成的富气相流体。这些热液与次火山岩浆相伴或滞后上升,经多次隐爆作用在破碎带中形成矿床。银矿体呈脉状产出于粗粒花岗岩之破碎带中,含矿岩石为隐爆角砾岩。熔浆物质既成角砾又呈胶结物,成矿带发育中低温热液蚀变。矿床为含矿凝灰岩(英安质)熔浆经隐爆作用形成的浅成中低温热液矿床。
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| 关 键 词： | 牛圈银(金)矿 细粒花岗岩 隐爆角砾岩 同位素 包裹体 |
Study on the Genesis of the Niujuan Silver(Gold) Deposit in Hebei Province |
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| WANC Yan-hui.Study on the Genesis of the Niujuan Silver(Gold) Deposit in Hebei Province[J].Geological Survey and Research,2010,33(1):35-41. |
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| Authors: | WANC Yan-hui |
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| Institution: | WANG+Yan-hui(Tianjin+North+China+Geologic+Exploration+General+Institute,Tianjin,300181) |
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| Abstract: | Through the study on the fine granite,the underground-explosive breccia and the isotope feature of the Niujuan silver(gold) deposit,this article suggests that the underground-explosive breccia(sub-lava) is formed by the partial remelting of basal rocks.The metallogenic material is from the remelting magma of the lower crust-upper mantle.The metallogenic hydrotherm is gas-rich liquid formed by differentiation of remelting magma.Ascending with or after the sub-lava,the liquid forms deposit in crushed zone aft... |
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| Keywords: | Niujuan electrum deposit fine granite underground explosive breccia isotope inclusion |
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