| 葛文春,孙德有,林强,吴福元.吉林太古宙花岗岩类构造─岩浆演化[J].地质找矿论丛,1996,(2):35-43 |
| 吉林太古宙花岗岩类构造─岩浆演化 |
| TECTONIC AND MAGMAIC EVOLUTION OF THE ARCHEAN GRANITTIC ROCKS IN JILIN PROVINCE |
| 投稿时间：1996-01-19 修订日期：1996-04-12 |
| DOI：10.6053/j.issn.1001-1412.1996.2. 004 |
| 中文关键词: 花岗岩 岩浆系列 剪切生热 深熔作用 伸展拆离 |
| 英文关键词: |
| 基金项目:国家自然科学基金 |
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| 摘要点击次数: 1098 |
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| 中文摘要: |
| 本文较为详细地研究了吉林太古宙花岗质岩石的地质,地球化学及构造特征,将花岗质岩石划分为三个岩浆演化系列,它们分别与不同的构造变形阶段相对应,即变形前-同变形壳源岩浆分异系列、晚变形深熔岩浆分凝系列和变形后壳源岩浆分异系列。通过上壳岩、花岗岩的变质作用、变形作用、岩浆活动的综合研究,讨论了麻粒岩变质作用与TTG岩浆形成于岛孤或活动大陆边缘的大地构造环境,剪切变形对深熔作用的影响,提出辉石花岗岩类的形成与造山带的伸展拆离作用有关。 |
| 英文摘要: |
| The detail studies on the geology, geochemistry and structure of the Archean granitic rocks in Jilin province indicate that three magmatic evolution series, i. e. predeformational-syndeformational crustal sourced magma series,syndeformational anatectic magma series and postdeformational crustal sourced magma series, can be identified. Each of them corresponds to one of deformational stages. The synthetical studies on the metamorphism, deformation and magmatism of the supracrustal rocks and granitic rocks show that the granulite factes metamorphism and the formation of TTG magma occurred in tectonic settings of island arc or active continental border, that shear deformation had an important effect on the anatexis,and that the origin of pyroxene granites had relationship with the extension and collapse of the mountain-building belt. |
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