| 秦岭区前寒武纪构造格局与演化问题探讨 |
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| 引用本文： | 张国伟,于在平.秦岭区前寒武纪构造格局与演化问题探讨[J].岩石学报,2000,16(1):11-21. |
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| 作者姓名： | 张国伟 于在平 |
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| 作者单位： | 西北大学地质学系,西安,710069 |
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| 基金项目： | 国家自然科学基金重点项目 !(编号 49732 0 80 ) |
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| 摘 要： | 秦岭造山带中夹持大量前寒武纪岩层、地块,筛除后期改造与变位,昨原,它们复杂而多样,不仅是秦岭造山带研究的基础,也是研究早期中国大陆壳形成演化的关键地带。现有的地质、地球化学研究,揭示秦岭区早前寒武纪具非统一多块分离拼合特征,晚期已成为早期化南块的边缘带。中新元古代相应于Ｇｒｅｎｖｉｌｌｉａｎ造山事件和Ｒｏｄｉｎｉａ超大陆全球性构造时期,秦岭区从扩张裂谷系与小洋盆兼杂并存的垂向加积增生构造体制向侧向
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| 关 键 词： | 大陆壳 构造格局 构造演化 秦岭区 前寒武纪 |
| 修稿时间： | 1999-00-00 |
On Precambrian framework
and evolution of the Qinling belt |
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| Zhang Guowei,Yu Zaiping,Dong Yunpeng and Yao Anping.On Precambrian framework
and evolution of the Qinling belt[J].Acta Petrologica Sinica,2000,16(1):11-21. |
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| Authors: | Zhang Guowei Yu Zaiping Dong Yunpeng and Yao Anping |
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| Abstract: | The Qinling belt is one of key areas for researching on
formation and evolution of early continental crust of China. A great deal of Precambrian
terrians in the belt shows various characteristics and complex evolutionary history. Early
stage of Precambrian is characterized by rifting apart and following integration of the
late stage marginal belt of North China Block based on geological and geochemical data.
Transformation from vertical accretion during Grenvillian orogeny imaged by rift system
and limited ocean basins to lateral accretion of plate tectonics is important for
continental dynamics with its background of mantle dynamics. |
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| Keywords: | Early continental crust of China Tectonic framework Vertical accretion Jinning movement Rodinia |
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