| 从南昌凹陷构造演化分析赣江断裂带运动学特征 |
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| 引用本文： | 周松源,张介辉,徐克定,蒋维三,彭军,刘家铎.从南昌凹陷构造演化分析赣江断裂带运动学特征[J].地质力学学报,2005,11(3):266-272. |
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| 作者姓名： | 周松源 张介辉 徐克定 蒋维三 彭军 刘家铎 |
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| 作者单位： | 西南石油学院资源与环境学院,四川,成都,610500;中国石油天然气股份有限公司浙江勘探分公司,浙江,杭州,310013;中国石油天然气股份有限公司浙江勘探分公司,浙江,杭州,310013;西南石油学院资源与环境学院,四川,成都,610500;成都理工大学,四川,成都,610059 |
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| 基金项目： | 四川省重点学科建设项目 |
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| 摘 要： | 通过对近几年南鄱阳坳陷油气勘探取得的地质、地球物理资料的分析，认为该盆地形成和构造演化是在燕山期古构造格局的限制下，受控于赣江断裂带的活动，以走滑-伸展为主要特征。提出南昌凹陷构造演化模式为：冷水坞期（K1l）具走滑-拉分盆地性质；周家店期—南雄早期（K2z～K2n^1）为左行走滑盆地；在南雄早期末发生构造转折，南雄中晚期（K2n^2＋3）转化为右行走滑-伸展盆地；清江期（E1q）为新生断陷盆地。据南昌凹陷的成盆演化特征推断赣江断裂带大规模左行走滑的时代为晚白垩世早、中期，转折点在南雄早期K2n^1末。
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| 关 键 词： | 赣江断裂带 运动学特征 南昌凹陷 鄱阳盆地 构造演化 |
| 文章编号： | 1006-6616（2005）03-0266-07 |
| 收稿时间： | 2004-10-10 |
| 修稿时间： | 2004年10月10 |
ANALYSIS OF KINEMATIC FEATURES OF THE GANJIANG FAULT ZONE BASED ON THE TECTONIC EVOLUTION OF THE NANCHANG SUBBASIN |
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| ZHOU Song-yuan,ZHANG Jie-hui,XU Ke-ding,JIANG Wei-shan,PEN Jun,LIU Jia-duo.ANALYSIS OF KINEMATIC FEATURES OF THE GANJIANG FAULT ZONE BASED ON THE TECTONIC EVOLUTION OF THE NANCHANG SUBBASIN[J].Journal of Geomechanics,2005,11(3):266-272. |
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| Authors: | ZHOU Song-yuan ZHANG Jie-hui XU Ke-ding JIANG Wei-shan PEN Jun LIU Jia-duo |
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| Institution: | Southwest Petroleum Institute, Xindu Avenue, Chengdu 610500, Sichuan, China;Zhejiang Petroleum Exploration Company, PetroChina, Hangzhou 310013, Zhejiang,Zhejiang Petroleum Exploration Company, PetroChina, Hangzhou 310013, Zhejiang,Zhejiang Petroleum Exploration Company, PetroChina, Hangzhou 310013, Zhejiang,Zhejiang Petroleum Exploration Company, PetroChina, Hangzhou 310013, Zhejiang,Southwest Petroleum Institute, Xindu Avenue, Chengdu 610500, Sichuan, China and Chengdu University of Technology, Chengdu 610059, Sichuan, China |
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| Abstract: | On the basis of an analysis of geological and geophysical data obtained by petroleum exploration in the South Poyang depression in recent years,the authors propose that the basining and tectonic evolution of the South Poyang depression were controlled by the activities of the Ganjiang fault zone under the constraint of the Yanshanian tectonic framework.The main tectonic activities were strike-slip movement and extension.The model of the tectonic evolution of the Nanchang subbasin is as follows:in the Lengshuiwuan(K_1l),the subbasin was a strike-slip-pull-apart basin;in the Zhoujiadianian(K_2z)to early Nanxiongian(K_2n1)it was a sinistral strike-slip basin;at the end of the early Nanxiongian a tectonic turn took place;in the mid-late Nanxiongian(K_2n 2+3 )it changed to a dextral strike-slip-extensional basin;in the Qingjiangian(E_1q)it became a new downfaulted basin.According to the features of the basining and tectonic evolution of the Nanchang subbasin,the authors suggest that the large-scale sinistral strike-slip movement of the Ganjiang fault zone occurred in the early-mid Late Cretaceous and the turning point from the sinistral strike slip movement to dextral strike-slip movement occurred at the end of the Late Cretaceous early Nanxiongian(K_2n1). |
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| Keywords: | Ganjiang fault zone kinematic features Nanchang subbasin Poyang basin tectonic evolution |
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