| 海南千家地区主要断裂带特征和控岩控矿作用分析 |
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| 引用本文： | 李孙雄,莫位明,云平,范渊.海南千家地区主要断裂带特征和控岩控矿作用分析[J].地质力学学报,2004,10(2):137-145. |
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| 作者姓名： | 李孙雄 莫位明 云平 范渊 |
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| 作者单位： | 海南省地质调查院, 海南省海口市 570206 |
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| 摘 要： | 千家地区断裂带主要有NE、NW、SN向,力学性质为张扭性和压扭性,生成于燕山期。SN向断裂带形变和蚀变程度最强烈,以强烈富集Ag、Pb、Zn、Au、Mo为特色,元素分异富集能力极强,元素的分带现象较明显,其控矿作用较强。NE向断裂带元素含量波动幅度大,常呈现出不同的元素组合分带。而NW向断裂带控矿作用相对较弱,元素含量波动幅度小,聚集能力相对较差,分异程度低。
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| 关 键 词： | 地球化学 断裂带 控矿 千家 |
| 文章编号： | 1006-6616(2004)02-0137-09 |
| 收稿时间： | 2003/9/23 0:00:00 |
| 修稿时间： | 2003年9月23日 |
CHARACTERISTICS OF MAJOR FAULT ZONES IN THE QIANJIA AREA AND ANALYSIS OF ROCK AND ORE CONTROL |
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| LI Sun-xiong,MO Wei-ming,YUN Ping and FAN Yuan.CHARACTERISTICS OF MAJOR FAULT ZONES IN THE QIANJIA AREA AND ANALYSIS OF ROCK AND ORE CONTROL[J].Journal of Geomechanics,2004,10(2):137-145. |
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| Authors: | LI Sun-xiong MO Wei-ming YUN Ping and FAN Yuan |
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| Institution: | Hainan Institute of Geological Survey, Haikou 570206, Hainan |
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| Abstract: | The fault zones in the Qianjia area are mainly of NW,NE and N-S trends and geomechanically of tenso-shear and compresso-shear origin.They originated in the Yanshanian period.The N-S-trending fault zone has been most strongly deformed and altered and is characterized by strong enrichment in Mo,Ag,Pb,Zn,Au and Mo,a very strong capacity of element fractionation and concentration,a pronounced phenomenon of element zoning and relatively strong ore-controlling effect.In the NE-trending fault zone the element contents vary greatly,generally exhibiting zones of different element assemblages.For the NW-trending fault zone,its ore-controlling effect is relatively weak,the element contents show a small variation,the capacity of element concentration is relatively poor and the degree of element fractionation is low. |
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| Keywords: | geochemistry fault zone ore control Qianjia Hainan |
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