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地质科学  2002, Vol. Issue (4): 473-482,490    DOI:
“活化构造与成矿学”专辑 最新目录 | 下期目录 | 过刊浏览 | 高级检索  |   
阿尔泰山南缘两个构造变形域的岩石变形特征和形成机理
赵志忠1, 曾乔松2, 李志纯2
1. 海南师范学院, 海口, 571158;
2. 中国科学院广州地球化学研究所, 广州, 510640
DEFORMATION CHARACTERS AND MECHANISM OF TWO TECTONIC DEFORMATIONAL PROVINCES IN SOUTHERN FOOTHILLS OF THE ALTAI MOUNTAINS
Zhao Zhizhong1, Zeng Qiaosong2, Li Zhichun2
1. Hainan Normal College, Haikou 571158;
2. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640
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摘要 阿尔泰山南缘地区东部与西部地壳岩石构造变形特征与变质岩岩石组合显示该区地壳岩石变形可划分出两个不同的构造变形域,不同构造变形域内的构造形迹、构造样式、变质岩组成等方面存在明显差异.整个南缘地区的岩石变形变质呈现出东西分区、南北分带的总体格架,而形成这-构造格架的原因是两个不同构造变形域具有不同的变质基底及不同的岩石变形方式与变形机制.
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赵志忠
曾乔松
李志纯
关键词阿尔泰山南缘   构造变形域   形成机理     
Abstract: The deformation characters and associations of metamorphic rocks in the southern foothills of the Altai Mountains indicated that there should occur two tectonic deformational provinces in the areas, i.e., the south east tectonic deformational province and the north west tectonic deformational province, with a sinistral shear zone, the Irek fault, being a boundary of the both. The obviously different tectonic patterns and tectonic styles between the two provinces were discussed in the paper. The deformation characters of the rocks in the whole southern foothill area might be regionalization; and in the southeast part of the area, the eye catching structure was a group of NW striking thrust faults, thrusted towards the southwest. Such a tectonic framework resulted from varied basement rocks, unique deformation mechanism and different deformation metamorphic history in the two tectonic deformational provinces in the southern foothills of the Altai Mountains.
Key wordsSouthern foothills of the Altai Mts.   Tectonic deformational provinces   Mechanism   
基金资助:国家自然科学基金项目(编号:49872039);国家305科技攻关项目(编号:96-915-02-01)资助.
引用本文:   
赵志忠,曾乔松,李志纯. 2002, 阿尔泰山南缘两个构造变形域的岩石变形特征和形成机理. 地质科学, (4): 473-482,490.
Zhao Zhizhong,Zeng Qiaosong,Li Zhichun. DEFORMATION CHARACTERS AND MECHANISM OF TWO TECTONIC DEFORMATIONAL PROVINCES IN SOUTHERN FOOTHILLS OF THE ALTAI MOUNTAINS[J]. Chinese Journal of Geology, 2002, (4): 473-482,490.
 
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