| 从几个实例看中国东部大陆后地台活化区构造演化与成矿的特征 |
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| 引用本文： | 李先福,付昭仁.从几个实例看中国东部大陆后地台活化区构造演化与成矿的特征[J].大地构造与成矿学,1994,18(2):139-146. |
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| 作者姓名： | 李先福 付昭仁 |
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| 摘 要： | 对山西中条山、北京西山和安徽月山等地区详细构造研究表明，尽管后地台阶段活化的时代有所不同，但其地壳构造演化显然具有某些共同的规律性：即均以伸展构造体制下的大规模剥离断层作用和横向构造置换的褶叠层发育开始，然后才转换为收缩体制下面理褶皱和逆冲推覆构造；以及伸层与收缩体制的多次交替，并伴随有与之密切相关的沉积事件、变质事件、岩浆热事件和叠加成矿作用。反映了地质体由深部构造层次到上部构造层次，由韧性变形环境到脆性变形环境的总体演化过程。
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| 关 键 词： | 大陆后地台活化区，伸展与收缩体制，构造层次，构造演化，叠加成矿作用，中国东部 |
TECTONIC EVOLUTION AND METALLIZATION OF CONTINENTAL DIWA: EXAMPLES FROM EASTERN CHINA |
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| Abstract: | A tectonic analysis of Shanxi Zhongtiao Mountains, Beijing West-hill and Anhui: Yue-Hill region demonstrates similar crustal evolution characteristics of this diwa that originated at different times. First a large scale denudational fault and transversal tectono-transposition bearing folding layer under the extensional regime occurred. This produced first generation(D1) in basement rocks and observed D1-foliation fold and thrusts. The transformations of the tectonic regimes from extension to compression occurred in later deformation series. The events of sedimentation, metamorphism, magmation, and superposition metallization associated with the tectonics occurred in the regions at the same time. These observed characteristics represent geologic body evolution from lower to shallow tectonic-level, and from plastic to cataclastic flow deformation in diwa. |
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| Keywords: | Continental post-platform activization region Regimes of extension and compression Tectonic-Level Tectonic evolution superposition metallization Eastern China |
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