| 四川石棉田湾含矿石英脉成因探讨 |
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| 引用本文： | 吴香尧,骆耀南.四川石棉田湾含矿石英脉成因探讨[J].成都理工大学学报(自然科学版),2001,28(1):45-47. |
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| 作者姓名： | 吴香尧 骆耀南 |
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| 作者单位： | 1. 成都理工学院地质学系,
2. 四川省地质勘查局 |
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| 基金项目： | 地质矿产部地质行业基金;; |
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| 摘 要： | 通过磨西剪切带硅质白云岩和千糜岩岩石化学特征研究 ,论证了千糜岩是由硅质白云岩经剪切变形和变质作用而形成的。由磨西剪切带中千糜岩质量平衡分析表明 :以 Ti O2 守恒为限制条件 ,该剪切带损失了 6 2 %的体积 ;且同原岩 (硅质白云岩 )相比 ,千糜岩有 Si O2 损失 ;指出各种形态的石英脉是 Si O2 经运移和聚集而形成的
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| 关 键 词： | 硅质白云岩 剪切变形 石英脉 成因 |
| 文章编号： | 1005-9539(2001)01-0045-03 |
| 修稿时间： | 1998年3月30日 |
ON THE ORIGIN OF ORE-BEARING QUARTZ VEINS IN THE TIANWAN AREA, SHIMIAN, SICHUAN |
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| WU Xiang-yao,LUO Yao-nan.ON THE ORIGIN OF ORE-BEARING QUARTZ VEINS IN THE TIANWAN AREA, SHIMIAN, SICHUAN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2001,28(1):45-47. |
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| Authors: | WU Xiang-yao LUO Yao-nan |
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| Institution: | WU Xiang yao 1,LUO Yao nan 2 |
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| Abstract: | Our study of the petrochemical characteristics of siliceous dolomite and phyllonites in the Moxi shear zone demonstrates that phyllonite was formed by shear strain and metamorphism from silceous dolomitite. The results of mass balance analysis on the phyllonite from the Moxi shear zone are as follows: the Moxi shear zone lost 68% of volume as TiO 2 is assumed to be constant. The phyllonite has a loss of SiO 2 as compared with the protolith (siliceous dolomite). It is believed that quartz veins of various shapes were formed by migration and concentration. |
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| Keywords: | siliceous dolomitite shear strain quartz vein orgin |
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