| 塔里木盆地北部奥陶系中部台地—盆地相序列中的高分辨率旋回特征 |
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| 引用本文： | 于炳松,陈建强,李兴武.塔里木盆地北部奥陶系中部台地—盆地相序列中的高分辨率旋回特征[J].现代地质,2001,15(3):255-260. |
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| 作者姓名： | 于炳松 陈建强 李兴武 |
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| 作者单位： | 中国地质大学地球科学与资源学院 |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999043304) ;高等学校博士学科点专项基金项目(2000049107). |
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| 摘 要： | 深入研究了塔里木盆地北部奥陶系中部一段台地—盆地相序列中的高分辨率碳酸盐岩旋回的特征。在盆地相和开阔陆棚—开阔台地相中分别识别出了最低级别的五级和七级旋回 ,分析了不同级别旋回的组成及其有序叠加方式 ,强调了海平面变化对碳酸盐岩旋回的控制作用。讨论了在开阔陆棚环境中碳酸盐岩的Milankovitch旋回特征 ,并据此进行了不同级别旋回时限的估算 ,为高分辨率年代地层学提供了重要的理论基础。
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| 关 键 词： | 高分辨率旋回 奥陶系 塔里木盆地 |
| 文章编号： | 1000-8527(2001)03-0255-06 |
| 修稿时间： | 2001年4月18日 |
HIGH RESOLUTION CYCLES IN A SEQUENCE COMPOSED OF PLATFORM AND BASIN IN THE MIDDLE PART OF ORDOVICIAN IN THE NORTH TARIM BASIN |
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| YU Bing song,CHEN Jian qiang,LI Xing wu.HIGH RESOLUTION CYCLES IN A SEQUENCE COMPOSED OF PLATFORM AND BASIN IN THE MIDDLE PART OF ORDOVICIAN IN THE NORTH TARIM BASIN[J].Geoscience——Journal of Graduate School,China University of Geosciences,2001,15(3):255-260. |
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| Authors: | YU Bing song CHEN Jian qiang LI Xing wu |
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| Abstract: | The characteristics of high resolution carbonate cycles in a sequence composed of platform and basin in the middle part of Ordovician in the North Tarim Basin have been studied. The fifth and seventh order cycles, which represent the lowest order of cycles that can be recognized in the basin and shelf to platform respectively according to the physical criteria, and the superimposed patterns of different order of cycles have been discussed. The Milankovitch characteristics of high frequent sixth and fifth order cycles have been analyzed and the time spans of different order of cycles have been estimated. It can be concluded that the composite sea level changes in different periods are the main factor controlling the formation of different order of carbonate cycles. |
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| Keywords: | high resolution cycle Ordovician the Tarim Basin |
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