| 博尔塔拉河断裂及其大地构造意义 |
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| 引用本文： | 李向东,秦跃群.博尔塔拉河断裂及其大地构造意义[J].新疆地质,1989(1). |
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| 作者姓名： | 李向东 秦跃群 |
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| 作者单位： | 新疆维吾尔自治区地质矿产局第一区调大队
(李向东)，新疆维吾尔自治区地质矿产局第一区调大队(秦跃群) |
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| 摘 要： | 博尔塔拉河断裂自前加里东期形成以来,经历了长期持续的构造活动,使断裂规模、深度渐大,形态愈加复杂.大量的地壳硅铝层的岩浆活动和近代频繁发生的浅源弱震,证实断裂下切深度基本达地壳硅铝层下部,可作为阿拉套华力西褶皱带和赛里木地块的界线,断裂两侧构造层同属天山地槽褶皱带.
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| 关 键 词： | 构造活动 硅铝层的岩浆活动 浅源地震 阿拉套华力西褶皱带 赛里木地块 博尔塔 拉河断裂 |
BORTALA RIVER FRACTURES AND IT'S GEOTECTONIC SIGNIFICANCE |
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| Li Xiangdong Qin Yuequn.BORTALA RIVER FRACTURES AND IT'S GEOTECTONIC SIGNIFICANCE[J].Xinjiang Geology,1989(1). |
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| Authors: | Li Xiangdong Qin Yuequn |
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| Abstract: | Since the Bortala river fracture formed in the precaledonian, it has undergone continuous tectonic activaties, with the scale and depth increased and the shape complicated gradually.The significant magmatic activities in sialsphere and frequent shallow earthquakes in modern time prove that the fracture has cut as deep as into the lower part of sialsphere, the fracture can be considered as the boundary between the Variscian fold system of Alataw and the Sairam massif. The structural layers on both sides of the fracture belong to the Tianshan gecsyncline foldbelt. |
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| Keywords: | tectonic activaties magmatic activaties in sialsphere shallow earthquqkes the Variscian fold system of Alataw Sairam massif Bortala river fracture |
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