| 西藏南部康马-亚东地区花岗岩类中的副矿物特征 |
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| 引用本文： | 王克友,周志广.西藏南部康马-亚东地区花岗岩类中的副矿物特征[J].安徽地质,2007,17(1):13-17. |
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| 作者姓名： | 王克友 周志广 |
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| 作者单位： | 安徽省地质调查院,安徽,合肥,230001;中国地质大学,地球科学与资源学院,北京,100083 |
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| 基金项目： | 中国地质调查局“西藏1:25万江孜幅、亚东幅区调项目”(20001300009111) |
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| 摘 要： | 西藏南部康马-亚东地区的花岗岩类可分为三个岩带,自北向南称为Ⅰ岩带、Ⅱ岩带和Ⅲ岩带,其分别位于北喜马拉雅构造带(拉轨岗日带)、北喜马拉雅(拉轨岗日带)与高喜马拉雅分界断层带和高喜马拉雅构造带.通过对区内10个人工重砂样品分析研究,发现这三个岩带岩石中的副矿物在含量、种类、矿物组合、平均比重、挥发分矿物相对含量和锆石晶体特征等方面均存在明显差异,并具分带性,同时也反映了各岩带岩石的形成深度和成因类型存在差异.
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| 关 键 词： | 花岗岩 副矿物 锆石晶体 分带性 西藏 |
| 文章编号： | 1005-6157（2007）01-013-05 |
| 修稿时间： | 2006-09-10 |
CHARACTERISTICS OF ACCESSORY MINERALS IN GRANITES IN THE KANGMAR-YADONG AREA, SOUTH TIBET |
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| WANG Ke-you,ZHOU Zhi-guang.CHARACTERISTICS OF ACCESSORY MINERALS IN GRANITES IN THE KANGMAR-YADONG AREA, SOUTH TIBET[J].Geology of Anhui,2007,17(1):13-17. |
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| Authors: | WANG Ke-you ZHOU Zhi-guang |
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| Institution: | 1.Institute of Geological Survey of Anhui Province, Hefei 230001, China; 2. China University of Geosciences, Beijing 100083, China, |
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| Abstract: | In the Southern Tibet,three zones of granites can be distinguished in the Kangmar-Yadong area.They are zone I that is located in North-Himalayan tectonic belt,zone II in the dividing fault belt between North-Himalayan(Laguigangri) and High-Himalayan tectonic belt,and zone III in High-Himalayan tectonic belt form north to south.By studying 10 samples of artificial heavy concentrates,remarkable differences in contents,kinds,associations of minerals,average proportions,relative contents of volatiles and characteristics of zircon have been found and the zonation is shown,also indicating the deference in formation depth and genetic type of rocks of each rock belt. |
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| Keywords: | granite accessory minerals zircon crystal zonation Tibet |
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