| 摘要: |
| 在盆地的构造演化过程中,古隆起是盆地构造演化中特定的构造,其构造演化影响着盆地的油气生成及运聚。根据地震剖面、钻井、测井等资料,对塔里木盆地塔中地区卡塔克隆起构造特征及其反转史进行研究。结果表明:卡塔克隆起多表现为基底卷入式断裂及多个“Y”字型断裂,花状构造样式,多数断裂断至二叠系顶面;卡塔克隆起在震旦—早奥陶世阶段为北倾斜坡,中奥陶世末期塔里木盆地由拉张转为挤压,构造反转,此时卡塔克隆起雏形基本形成,并形成了前述断裂构造样式;晚奥陶—中泥盆世末隆起基本定型,构造形态保持至今;中泥盆世—中新世期间,虽经历了强烈的构造运动,但未改变卡塔克隆起的形态。 |
| 关键词: 塔里木盆地 塔中隆起 古隆起 沉降-反转史 构造演化 |
| DOI：10.3969/j.issn.1673-5005.2011.01.005 |
| 分类号::TE 121.2 |
| 文献标识码:A |
| 基金项目:国家自然科学基金项目(40772077/DD206) |
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| Evolution and subsidencetectonic inversion history of Kartake paleouplift in Tazhong area of Tarim Basin |
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ZHOU Aihong1, SUN Yue2, FENG Yu3
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(1.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;2.PetroChina Daqing Tamtsag, LLC, Daqing 163453, China;3.PetroChina Technical Service Company, Beijing 100007, China)
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| Abstract: |
| Paleouplift is a particular structure which was formed during the basin tectonic evolution. Paleouplift tectonic evolution impacted on hydrocarbon generation, migration and accumulation in the basin. Tectonic characteristics and inversion history of Kartake uplift in central Tarim Basin were researched on the basis of seismic crosssection, drilling data and logging data. The results show that Kartake uplift displayed more performances for the basementinvolved fracture, a number of "Y"shaped fractures, flowershaped structure pattern, and the majority of fractures broken down to Permian top. From Sinian to Early Ordovician, Kartake uplift was a northward slope, then at the end of Middle Ordovician, the aforementioned fracture tectonic style formed and the embryonic shape of Kartake uplift basically formed because the stress in the Tarim Basin changed from tension to compression and fractures was inversed. From Late Ordovician to the end of Middle Devonian, uplift shape was set basically, and structural feature was remained so far. Although from Middle Devonian to Miocene was a strong tectonic movement phase, the form of Katake uplift didn 't change. |
| Key words: Tarim Basin Tazhong uplift paleouplift subsidencetectonic inversion history tectonic evolution |
