| 初论胶北隆起地壳伸展作用 |
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| 引用本文： | 凌贤长,董永胜,刘春华,徐学纯,卢良兆.初论胶北隆起地壳伸展作用[J].吉林大学学报(地球科学版),1997(1). |
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| 作者姓名： | 凌贤长 董永胜 刘春华 徐学纯 卢良兆 |
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| 作者单位： | 地矿部变质动力学开放研究实验室 |
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| 摘 要： | 晚元古宙，胶北隆起在造山运动后期开始发生ＮＷ（Ｗ）→ＳＥ（Ｅ）方向的地壳伸展作用，突出表现于前寒武纪结晶基底内部，持续时间很长久（自晚元古宙开始，断续到中生代印支—燕山期），具有改造期伸展作用特点，区域构造处于十分激化的状态，导致褶皱变形及大规模花岗质岩浆侵位
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| 关 键 词： | 胶北隆起 晚元古宙 地壳伸展作用 |
INITIAL DISSERTATION ON CRUSTAL EXTENSION IN THE JIAOBEI TECTONIC UPLIFTING |
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| Ling Xianzhang,Dong Yongsheng,Liu Chunhua,Xu Xuechun,Lu Liangzhao.INITIAL DISSERTATION ON CRUSTAL EXTENSION IN THE JIAOBEI TECTONIC UPLIFTING[J].Journal of Jilin Unviersity:Earth Science Edition,1997(1). |
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| Authors: | Ling Xianzhang Dong Yongsheng Liu Chunhua Xu Xuechun Lu Liangzhao |
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| Abstract: | In the Late Proterozoic, in the Jiaobei tectonic uplifting there existed the crustal extension from NW(W) to SE(E) during the late orogenic phase. The crustal extension mainly occurred in the Precambrian crystalline foundation and lasted a very long time interval (from the Late Proterozoic to Mesozoic Indo-Chinese Epoch and Phase of Yenshanian). The crustal extension had the extension features of crustal remodelling period, and the tectonic activization was very violent, which resulted in tectonic folding and lage scale intrusion of granitic magma. |
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| Keywords: | Jiaobei tectonic uplifting the Late Proterozoic crustal extension |
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