| 西天山阿吾拉勒地区岩浆活动与构造演化 |
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| 引用本文： | 姜常义,吴文奎,张学仁,崔尚森.西天山阿吾拉勒地区岩浆活动与构造演化[J].地球科学与环境学报,1996(2). |
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| 作者姓名： | 姜常义 吴文奎 张学仁 崔尚森 |
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| 作者单位： | 西安地质学院科研处 |
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| 摘 要： | 阿吾拉勒地区海西中晚期侵入岩十分发育，岩体众多，岩石类型丰富。该区的构造岩浆活动明显地表现为三个阶段。早中石炭世阶段的岩浆活动受控于Ｂ型俯冲作用，形成于大陆型岛弧的内侧。而早二叠世和晚二叠世阶段的岩浆活动均为板内拉张作用的产物，形成于裂谷化的初期阶段。形成于不同构造体制和构造环境的侵人岩，其岩石学特征有明显的差异，在岩石的碱度、Ｋ２Ｏ和ＴｉＯ２含量等方面的差异尤为明显。
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| 关 键 词： | 构造岩浆阶段 构造环境 岩浆活动 化学系列 |
MAGMA ACTION AND TECTONIC EVOLUTION IN AWULALE DISTRICT,WESTERN TIANSHAN MOUNTAIN |
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| Jiang Changyi, Wu Wenkui, Zhang Xueren, Cui Shangsen.MAGMA ACTION AND TECTONIC EVOLUTION IN AWULALE DISTRICT,WESTERN TIANSHAN MOUNTAIN[J].Journal of Earth Sciences and Environment,1996(2). |
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| Authors: | Jiang Changyi Wu Wenkui Zhang Xueren Cui Shangsen |
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| Institution: | Xi'an College of Geology 710054 |
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| Abstract: | There are a lot of intrusive bodies and complexes and a variety of rock types in Awulale district. Thetectono -magmatic action in this district shows evidently three stages. Magma action at early and middle Carboniferous epoch was controlled by B-type subduction, occured at the inner side of continental island arc.While magma actions at early and late Permian epoch were all outcome by extension inside plate, occured atinitial stage of rifting. Petrologic characters for intrusive rocks formed in different tectonic systemand environments have obvious differences, especially in alkalinity, K2 O and TiO2 contents. |
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| Keywords: | Tectonomagmatic stage tectonic environment magma activity chemical series |
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