| 米仓山基底周缘震旦纪岩石地层及层序地层特征 |
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| 引用本文： | 赵兵. 米仓山基底周缘震旦纪岩石地层及层序地层特征[J]. 矿物岩石, 1999, 19(3): 46-51 |
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| 作者姓名： | 赵兵 |
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| 作者单位： | 成都理工学院地质学系!成都610059 |
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| 摘 要： | 本文详细描述了米仓山南缘南江杨坝震旦纪地层剖面，将该区上震旦统划分为观音崖组和灯影组，并首次将灯影组细分为四个岩性段，同时查明了各组段的岩石组合及空间变化规律，根据岩石学，沉积环境及沉积地层界面特征将米仓山周缘地区上震旦统划分为两个沉积层序及一个超层序，分析了各体系域特征及海平面变化规律。
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| 关 键 词： | 米仓山 震旦纪 岩石地层 层序地层 |
THE LITHOSTRATIGRAPHY AND SEQUENCE STRATIGRAPHY OF THE SINIAN AROUND THE AREA OF MICANGSHAN BASEMENT |
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| Zhao Bing. THE LITHOSTRATIGRAPHY AND SEQUENCE STRATIGRAPHY OF THE SINIAN AROUND THE AREA OF MICANGSHAN BASEMENT[J]. Journal of Mineralogy and Petrology, 1999, 19(3): 46-51 |
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| Authors: | Zhao Bing |
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| Abstract: | In this paper the Sinian section at Yangba, Nanjiang County in the southern margin of Micangshan area is described in detail. The Upper Sinian around Micangshan area is divided into Guanyingya Fm and Dengying Fm.The Dengying Fm is further subdivided into four members in the first time and the regularity of spatial variation of each lithostratigraphic unit is recognized. The Late Sinian around Micangshan area is divided into two sequences which belong to a supersequence according to the lithology and sedimental environment. The characteristics of system tract and sea leval variation of each sequence are analysed. |
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| Keywords: | Micangshan Sinian lithostratigraphy sequence system tract sea level |
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