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| 塔里木盆地寒武-奥陶纪海平面升降变化规律研究 | |
| 引用本文： | 高志前,樊太亮,李岩,刘武宏,陈玉林.塔里木盆地寒武-奥陶纪海平面升降变化规律研究[J].吉林大学学报(地球科学版),2006,36(4):549-556. |
| 作者姓名： | 高志前 樊太亮 李岩 刘武宏 陈玉林 |
| 作者单位： | 1. 中国地质大学,能源学院,北京,100083 2. 北京市地质研究所,北京,100011 3. 中国石化胜利油田有限公司,纯梁采油厂,山东,东营,256504 4. 中国石油大港油田公司,第五采油厂,天津,434023 |
| 基金项目： | 中国石油化工集团西部新区勘探指挥部科技攻关项目 |
| 摘 要： | 利用元素地球化学特征和地震几何构型特征,对塔里木盆地寒武-奥陶纪时期海平面升降变化规律进行了研究,建立了寒武-奥陶纪相对海平面变化曲线。研究发现,塔里木盆地寒武奥陶纪可划分出3个一级旋回,8个二级旋回,17个三级旋回和多期高频震荡旋回。其中,寒武纪经历了3期二级旋回,早中奥陶世经历了2期旋回。相对于寒武纪,早奥陶世海平面升幅较大。晚奥陶世经历了3期二级旋回:第一期处于海平面低位期,幅度较小;后二期快速上升,直达最高水位状态。海平面相对升降变化控制着盆地的沉积充填和层序的形成演化,其旋回性与盆地沉积作用的旋回性相一致,并可通过沉积相的演变表现出来。 |
| 关 键 词： | 塔里木盆地 层序叠加 高频旋回 寒武-奥陶纪 海平面变化 |
| 文章编号： | 1671-5888(2006)04-0549-08 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2005年11月21日 |
Study on Eustatic Sea-Level Change Rule in Cambrian-Ordovician in Tarim Basin |
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| GAO Zhi-qian,FAN Tai-liang,LI Yan,LIU Wu-hong,CHEN Yu-lin.Study on Eustatic Sea-Level Change Rule in Cambrian-Ordovician in Tarim Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2006,36(4):549-556. | |
| Authors: | GAO Zhi-qian FAN Tai-liang LI Yan LIU Wu-hong CHEN Yu-lin |
| Institution: | 1. School of Energy Resource, China University of Geoscience, Beijing 100083, China; 2. Beijing Institute of Geology, Beijing 100011, China; 3, Chunliang Oil Production Factory, Shengli Oil field, China Petroleum and Chemical Corporation, Dongying,Shandong 256504, China; 4, The Fifth Oil Production Factory, Dagang Oil field, Petrochina Compaily , Tianjin 434023,China |
| Abstract: | The eustatic sea-level change rule has been studied by using element geochemistry feature and seismic geometric configuration feature in the Cambrian-Ordovician in Tarim Basin,and the comparative sea-level change curve has been obtained,which can be divided into three first-grade cycles,eight second-grade cycles,seventeen third-grade cycles and more high frequency concussion cycles in the Cambrian-Ordovician in Tarim Basin.There occurred the second-grade eustatic sea-level change cycle three times during Cambrian and two times during the early Ordovician,and the extent of the sea-level rise in the early Ordovician is higher than that in Cambrian.In the middle-late Ordovician there occurred the second-grade eustatic sea-level change cycle three times,and the first time occurred at low system tract of sea level with small rise extent of the sea-level,but the sea-level rapidly reached the highest water level state in the later two times.The eustatic sea-level change controls on the basin sediment infilling and sequence formation evolution.The cyclicity of the sea-level changes are corresponded with the cyclicity of the basin sedimentation,and are represented by the sedimentary facies evolutions. |
| Keywords: | Tarim Basin sequence stack high frequency cycle CambrianOrdovician sea-level change |
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