| 甘肃北山南带峡东地区敦煌岩群中花岗质正片麻岩的确认及其意义 |
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| 引用本文： | 王静永.甘肃北山南带峡东地区敦煌岩群中花岗质正片麻岩的确认及其意义[J].甘肃地质学报,2008(3):22-26. |
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| 作者姓名： | 王静永 |
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| 作者单位： | 甘肃省地矿局第四地勘院; |
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| 基金项目： | 致谢：本文写作过程中曾与赵茹石高工进行过多次讨论,初稿完成后又承蒙提出宝贵修改意见,在此一并表示衷心的感谢. |
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| 摘 要： | 甘肃北山南带峡东地区位于塔里木板块东段敦煌地块与北山古生代褶皱带的衔接部位．该地区的敦煌岩群由于构造变形及变质作用强烈，岩石组合及地质时代一直处于争论之中，本文依据1：5万幅区域地质调查中发现的新资料、新成果，对该地区的敦煌岩群的组成重新进行了片麻岩与表壳岩划分，并着重对其中填绘出的以古老侵入岩体出现的正片麻岩体进行了分析说明。
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| 关 键 词： | 北山南带 敦煌岩群 正片麻岩 确认 |
IDENTIFICATION OF GRANITIC ORTHOGNEISS OF DUNHUANG
ROCK GROUP IN XIADONG AREA OF GANSU
PROVINCE AND ITS SIGNIFICANCE |
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| WANG Jing-yong.IDENTIFICATION OF GRANITIC ORTHOGNEISS OF DUNHUANG
ROCK GROUP IN XIADONG AREA OF GANSU
PROVINCE AND ITS SIGNIFICANCE[J].Acta Geologica Gansu,2008(3):22-26. |
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| Authors: | WANG Jing-yong |
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| Institution: | No. 4 Geology and Mineral Exploration Team;Gansu Provincial Bureau of Geology and Mineral Exploration and Development;Jiuquan 735000;China |
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| Abstract: | Xiadong area within the south belt of Beishan in Gansu Province is situated on the joint of Dunhuang Block in the east section of Tarim plate and Palaeozoic fold zone of Beishan. The rock of Dunhuang Rock Group suffered structural deformation and metamorphic process so strongly that the rock assemblage and geological time are still in question. On the basis of the update data from regional geological survey of scale 1: 50 000, the re-classification of gneiss and supracrustal rock has been done, the formatio... |
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| Keywords: | the south belt of Beishan Dunhuang Rock Group orthogneiss identification |
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