| 广西桂中坳陷东缘早石炭世斜坡相层序地层研究 |
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| 引用本文： | 彭中勤,王传尚 李志宏 王保忠.广西桂中坳陷东缘早石炭世斜坡相层序地层研究[J].中国地质,2014,41(5):1503-1514. |
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| 作者姓名： | 彭中勤 王传尚 李志宏 王保忠 |
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| 作者单位： | 1. 武汉地质调查中心，湖北武汉430205; 中国地质大学 武汉 地球科学学院，湖北武汉430074
2. 武汉地质调查中心,湖北武汉,430205 |
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| 基金项目： | 中国地质调查局项目(1212011121104，12120114053701)联合资助。 |
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| 摘 要： | 本文以桂中坳陷东缘斜坡相区早石炭世象州崖脚、运江剖面为主要研究对象,开展了桂中坳陷东缘斜坡相区早石炭世层序地层的划分和对比研究。根据斜坡相区三级层序的发育特点,将巴平组划分为5个三级层序(CSQ1~5),5个三级层序构成石炭系下部的二级层序。斜坡相区与台地相区早石炭世层序地层的划分基本一致,可实现相互对比。通过区内沉积层序的对比,建立了桂中坳陷东缘层序地层格架,探讨了该区下石炭统的海平面变化规律。
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| 关 键 词： | 广西桂中 斜坡相区 下石炭统 层序地层 |
The Early Carboniferous sequence stratigraphy on the eastern margin of the Guizhong depression, Guangxi |
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| PENG Zhong-qin,WANG Chuan-shang,LI Zhi-hong,WAMG Bao-zhong.The Early Carboniferous sequence stratigraphy on the eastern margin of the Guizhong depression, Guangxi[J].Chinese Geology,2014,41(5):1503-1514. |
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| Authors: | PENG Zhong-qin WANG Chuan-shang LI Zhi-hong WAMG Bao-zhong |
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| Institution: | 1. Wuhan Center of China Geological Survey, Wuhan 430205, Hubei, China; 2. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, Hubei, China |
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| Abstract: | Abstract: Based on the study of the slope facies along the Yajiao and Yunjiang sections in Xiangzhou on the eastern margin of the Guizhong depression,the authors carried out the classification and correlation of Carboniferous sequence stratigraphy on the slope facies. According to the development characteristics of 3rd grade sequence in slope facies,the Baping Formation of the Early Carboniferous is divided into five 3rd grade sequences (CSQ1-5),which constitute a 2nd grade sequence of the Early Carboniferous. The Lower Carboniferous sequence stratigraphic classification frameworks between the platform and the slope facies are consistent approximately,and hence the correlation could be carried out directly. On the basis of regional sedimentary sequence correlation,the Lower Carboniferous sequence stratigraphic framework is established. Sea-level changes in Early Carboniferous in this region is also discussed. |
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| Keywords: | Guizhong of Guangxi slope facies Lower Carboniferous sequence stratigraphy |
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