| 摘要: |
| 笔者应用层序地层学的原理和研究方法,对扬子地台西缘陕西宁强和四川广元地区的志留纪地层剖面进行了重新研究,识别出9个三级层序。三级层序均发育T ST和HST,而缺乏LST和SM ST。通过区内沉积层序的对比,建立了扬子西缘志留纪层序地层格架。最后探讨了该区志留纪的海平面变化规律。 |
| 关键词: 层序地层 志留纪 层序对比 海平面变化 扬子地台西缘 |
| DOI： |
| 附件 |
| 投稿时间：2000-01-12 |
| 基金项目: |
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| Silurian sequence stratigraphy of the western margin of the Yangtze platform in China |
| ZOU Guang-fu, CHEN Yong-ming |
| (Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, Sichuan, China) |
| Abstract: |
| The Silurian strata in Ningqiang,Shaanxi and Guangyuan,Sichuan on the western margin of the Yangtze platform are re-examined with the aid of the principles and methods of sequence stratigraphy,and grouped into nine third-order sequences,in which the transgressive and highstand systems tracts are developed but the lowstand and shelf-margin systems tracts are lacking.The Silurian sequence stratigraphic framework and sea-level curves are thus constructed on the basis of the sequence correlation in the study area. |
| Key words: sequence stratigraphy Silurian sequence correlation sea-level change western Yangtze platform |
