本文主要研究内容
作者田佳元（2019）在《银额盆地东部石炭系—二叠系构造变形研究》一文中研究指出：银额盆地位于中亚造山带中段南缘,围限于西伯利亚、塔里木、阿拉善、鄂尔多斯、华北等板块(陆块)之中,加之阿尔金走滑断裂带、红石山断裂带、恩格尔乌苏断裂带等多条大型构造带汇聚发育于此,蕴含着丰富的地质信息,是研究中亚造山带变形特征,恢复古亚洲洋俯冲消减、碰撞拼合及陆内演化过程的理想场所。同时,作为中国北方含油气盆地的典型代表,银额盆地中石炭-二叠系具有良好的油气资源勘探前景。本次研究以板块构造学说和陆内构造理论为指导,以盆地形成与演化为主线,基于翔实的野外地质调查和系统的室内测试分析,结合地球物理资料和构造-热年代学数据,并充分吸收消化前人的研究成果,对银额盆地东部石炭-二叠系的构造变形特征进行分析,并探讨银额盆地的形成演化过程和动力学机制。研究认为:(1)银额盆地东部石炭-二叠纪地层自沉积以来至少发育五期构造变形。其中,D1为俯冲碰撞构造变形,发育大规模紧闭倒转褶皱、逆冲推覆断层和强片理化带等俯冲、碰撞型变形构造。伴随该期构造变形,早、中三叠世地层缺失,岩浆活动强烈,晚三叠世陆相磨拉石建造与下伏地层呈角度不整合接触;D2为挤压构造变形,发育逆冲推覆构造,同时形成正常-开阔褶皱和北东向张性断层,银额盆地内北东向裂陷构造萌生;D3为伸展构造变形,以北东东-北东向伸展变形为其主导,北东向隆坳格局形成;D4为反转构造变形,银额盆地及其周边地区发生构造反转,由早期的伸展断陷转变为挤压回返,发育小型逆断层和宽缓褶皱;D5为差异升降运动,银额盆地及邻区挤压抬升,局部发育断裂构造和宽缓褶皱。(2)构造-热年代学资料综合分析表明,上述五期构造变形依次发生于海西晚期-早印支期、印支期-燕山早期、燕山中晚期、燕山晚期和喜山期。(3)银额盆地石炭-二叠纪以来主要经历了五大阶段的形成演化过程,即石炭-二叠纪裂谷、裂陷构造演化阶段、晚二叠世末期-三叠纪挤压隆升构造变形阶段、侏罗纪-早白垩世陆内断陷盆地构造演化阶段、晚白垩世-古近纪构造反转挤压推覆阶段和新近纪-第四纪盆地分割与局部断陷阶段。其形成演化动力学机制与古亚洲洋的俯冲消减闭合碰撞、西伯利亚板块与塔里木-华北板块的持续汇聚、阿尔金断裂带等深大断裂的强烈活动以及印度-欧亚板块碰撞的远程效应等息息相关。
Abstract
yin e pen de wei yu zhong ya zao shan dai zhong duan na yuan ,wei xian yu xi bai li ya 、da li mu 、a la shan 、e er duo si 、hua bei deng ban kuai (liu kuai )zhi zhong ,jia zhi a er jin zou hua duan lie dai 、gong dan shan duan lie dai 、en ge er wu su duan lie dai deng duo tiao da xing gou zao dai hui ju fa yo yu ci ,wen han zhao feng fu de de zhi xin xi ,shi yan jiu zhong ya zao shan dai bian xing te zheng ,hui fu gu ya zhou xiang fu chong xiao jian 、peng zhuang pin ge ji liu nei yan hua guo cheng de li xiang chang suo 。tong shi ,zuo wei zhong guo bei fang han you qi pen de de dian xing dai biao ,yin e pen de zhong dan tan -er die ji ju you liang hao de you qi zi yuan kan tan qian jing 。ben ci yan jiu yi ban kuai gou zao xue shui he liu nei gou zao li lun wei zhi dao ,yi pen de xing cheng yu yan hua wei zhu xian ,ji yu xiang shi de ye wai de zhi diao cha he ji tong de shi nei ce shi fen xi ,jie ge de qiu wu li zi liao he gou zao -re nian dai xue shu ju ,bing chong fen xi shou xiao hua qian ren de yan jiu cheng guo ,dui yin e pen de dong bu dan tan -er die ji de gou zao bian xing te zheng jin hang fen xi ,bing tan tao yin e pen de de xing cheng yan hua guo cheng he dong li xue ji zhi 。yan jiu ren wei :(1)yin e pen de dong bu dan tan -er die ji de ceng zi chen ji yi lai zhi shao fa yo wu ji gou zao bian xing 。ji zhong ,D1wei fu chong peng zhuang gou zao bian xing ,fa yo da gui mo jin bi dao zhuai zhe zhou 、ni chong tui fu duan ceng he jiang pian li hua dai deng fu chong 、peng zhuang xing bian xing gou zao 。ban sui gai ji gou zao bian xing ,zao 、zhong san die shi de ceng que shi ,yan jiang huo dong jiang lie ,wan san die shi liu xiang mo la dan jian zao yu xia fu de ceng cheng jiao du bu zheng ge jie chu ;D2wei ji ya gou zao bian xing ,fa yo ni chong tui fu gou zao ,tong shi xing cheng zheng chang -kai kuo zhe zhou he bei dong xiang zhang xing duan ceng ,yin e pen de nei bei dong xiang lie xian gou zao meng sheng ;D3wei shen zhan gou zao bian xing ,yi bei dong dong -bei dong xiang shen zhan bian xing wei ji zhu dao ,bei dong xiang long ao ge ju xing cheng ;D4wei fan zhuai gou zao bian xing ,yin e pen de ji ji zhou bian de ou fa sheng gou zao fan zhuai ,you zao ji de shen zhan duan xian zhuai bian wei ji ya hui fan ,fa yo xiao xing ni duan ceng he kuan huan zhe zhou ;D5wei cha yi sheng jiang yun dong ,yin e pen de ji lin ou ji ya tai sheng ,ju bu fa yo duan lie gou zao he kuan huan zhe zhou 。(2)gou zao -re nian dai xue zi liao zeng ge fen xi biao ming ,shang shu wu ji gou zao bian xing yi ci fa sheng yu hai xi wan ji -zao yin zhi ji 、yin zhi ji -yan shan zao ji 、yan shan zhong wan ji 、yan shan wan ji he xi shan ji 。(3)yin e pen de dan tan -er die ji yi lai zhu yao jing li le wu da jie duan de xing cheng yan hua guo cheng ,ji dan tan -er die ji lie gu 、lie xian gou zao yan hua jie duan 、wan er die shi mo ji -san die ji ji ya long sheng gou zao bian xing jie duan 、zhu luo ji -zao bai e shi liu nei duan xian pen de gou zao yan hua jie duan 、wan bai e shi -gu jin ji gou zao fan zhuai ji ya tui fu jie duan he xin jin ji -di si ji pen de fen ge yu ju bu duan xian jie duan 。ji xing cheng yan hua dong li xue ji zhi yu gu ya zhou xiang de fu chong xiao jian bi ge peng zhuang 、xi bai li ya ban kuai yu da li mu -hua bei ban kuai de chi xu hui ju 、a er jin duan lie dai deng shen da duan lie de jiang lie huo dong yi ji yin du -ou ya ban kuai peng zhuang de yuan cheng xiao ying deng xi xi xiang guan 。
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论文详细介绍
论文作者分别是来自西北大学的田佳元，发表于刊物西北大学2019-10-11论文，是一篇关于银额盆地论文,石炭二叠系论文,构造变形论文,构造热年代学论文,地震剖面论文,西北大学2019-10-11论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自西北大学2019-10-11论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：银额盆地论文; 石炭二叠系论文; 构造变形论文; 构造热年代学论文; 地震剖面论文; 西北大学2019-10-11论文;