| 华北地台前寒武花岗岩类、陆壳演化与克拉通形成 |
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| 引用本文： | ②.华北地台前寒武花岗岩类、陆壳演化与克拉通形成[J].岩石学报,1999,15(2):1. |
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| 作者姓名： | ② |
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| 作者单位： | 1. 中国地质大学,北京,100083
2. 国家地震局地质研究所,北京,100029 |
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| 基金项目： | 国家自然科学基金,国土资源部基础研究项目 |
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| 摘 要： | 通过华北前寒武纪花岗岩类的研究，提出英云闪长岩和奥长花岗岩（Ｔ１Ｔ２）代表不成熟陆壳组成，Ｔ１Ｔ２Ｇ１Ｇ２代表半成熟陆壳组成，花岗闪长岩和花岗岩（Ｇ１Ｇ２）代表成熟陆壳组成。讨论了大陆根的形成与性质。识别出华北地台内１０个太古陆核。讨论了中太古代初始陆核、新太古代陆核；新太古代末两个微大陆尺度的陆核的形成；早元古代两个成熟陆核的构造拼合并形成华北克拉通
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| 关 键 词： | 华北地台 花岗岩类 陆壳演化 大陆根 陆核与克拉通形成 |
Precambrian granitic rocks,continental crustal evolution and craton formation of the North China Platform. |
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| Deng Jinfu,Wu Zongxu,Zhao Guochun,Zhao Hailing,Luo Zhaohua and Mo Xuanxue...Precambrian granitic rocks,continental crustal evolution and craton formation of the North China Platform.[J].Acta Petrologica Sinica,1999,15(2):1. |
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| Authors: | Deng Jinfu Wu Zongxu Zhao Guochun Zhao Hailing Luo Zhaohua and Mo Xuanxue |
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| Abstract: | Based on study of Precambrian granitic rocks, this paper suggests that T 1T 2, T 1T 2G 1G 2 and G 1G 2 associations represent inmature,semi mature and mature continental crustal composition, respectively. Continental root and its nature are discussed. Ten Archean continental nucleuses have been recognized. Formation of Mezoarchean initial continental nucleus, Archean continental nucleus in Neoarchean, two micro continental scale continental nucleus in the latest Archean, and formation of the North China craton by tectonic assemblage of the two mature continental nucleuses in Paleoproterozoic are disussed. |
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| Keywords: | North China Platform Granitic rocks Continental evolution Continental root Continental nucleus Craton formation |
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