| 梨树断陷控陷断层的动态活动特征 |
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| 引用本文： | 逄海明,李增玉.梨树断陷控陷断层的动态活动特征[J].四川地质学报,2014(2):174-178. |
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| 作者姓名： | 逄海明 李增玉 |
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| 作者单位： | 中国石化东北油气分公司勘探开发研究院,长春130062 |
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| 摘 要： | 桑树台断层是梨树断陷唯一一条控制断陷结构的一级断层,其动态活动特征、位移量以及对梨树断陷的控制作用等问题制约着层序地层格架和沉积体系的建立。根据该断层的生长模式,用位移—长度关系法分析其在火石岭、沙河子、营城、登娄库等地在坳陷期位移量的变化特征,定量计算不同时期断层最大位移量,分析了桑树台断层的复合式动态生长模式后认为,桑树台断层早期分南、中、北三段独立活动,控制了桑树台主洼、苏家屯次洼、金山次洼的沉积,到沙河子组后期拼合成一条断层。
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| 关 键 词： | 梨树断陷 桑树台断层 位移-长度 苏家屯次洼 |
Dynamic Activity of the Controlling Fault of the Lishu Fault Depression |
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| PANG Hai-ming,LI Zeng-yu.Dynamic Activity of the Controlling Fault of the Lishu Fault Depression[J].Acta Geologica Sichuan,2014(2):174-178. |
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| Authors: | PANG Hai-ming LI Zeng-yu |
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| Institution: | (No. 404 Geological Team, BGEEMRSP, Xichang, Sichuan 615000) |
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| Abstract: | The Sangshutai fault is the only controlling fault of the Lishu fault depression. Active characteristics and displacement of the fault as well as its control over the Lishu fault depression restrict the establishment of sequence stratigraphy and depositional system. Study indicates that the Sangshutai fault can be divided into south, middle and north sections which got control over Sangshutai, Jinshan and Sujiatun depressions, respectively and merged into a line fault in the late K1sh depositional period. |
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| Keywords: | Lishu fault depression Sangshutai fault displacement-length Sujiatun depression |
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