| "狗头金”的再生特征及成因--以湖南益阳南郊7号"狗头金”为例 |
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| 引用本文： | 罗献林. "狗头金”的再生特征及成因--以湖南益阳南郊7号"狗头金”为例[J]. 黄金地质, 2001, 7(1): 63-67 |
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| 作者姓名： | 罗献林 |
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| 作者单位： | 桂林工学院, |
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| 摘 要： | 湖南益阳南郊7号“狗头金”的金源主要来自古火山岩及其边部冷家溪群板岩中的含金矿脉与基性火山碎屑岩系，属近原甚至近于就地的沉积再生成因。该“狗头金”表现不但显示再生痕迹，而且蜂窝状洞穴中的粘土还有微细金相伴，其杂质组分与本区含金矿石的标型元素Cr、Ag、Cu相对应。
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| 关 键 词： | 成因 砂金 湖南 “狗头金” 火山岩 沉积再生 金矿床 |
| 文章编号： | 1006-558(2001)01-0063-05 |
| 修稿时间： | 2000-06-20 |
Regeneration features and origin of nugget: No. 7 nugget in south suburbs of Yiyang, Hunan |
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| LUO Xian lin. Regeneration features and origin of nugget: No. 7 nugget in south suburbs of Yiyang, Hunan[J]. Gold Geology, 2001, 7(1): 63-67 |
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| Authors: | LUO Xian lin |
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| Abstract: | The origin of the No. 7 nugget found in south suburbs of Yiyang city of Hunan mainly comes from plaeovolcanic rock and the gold veins and the basic volcanic clastic rock in Nenjiaxi Group slate around the plaeovolcanic rock. Its origin belongs to near source or autochthon sedimentary regeneration.The surface of the nugget appears the feature of regeneration and clay in the honeycomb caves has the micrograined associated gold. The impurity composition of the gold compares with the mark elements(Cr,Ag and Cu) in the gold ore. |
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| Keywords: | placer gold regeneration origin Hunan |
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