| 安徽中南部下二叠统栖霞组和孤峰组沉积环境及成岩历史 |
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| 引用本文： | 刘宝珺,朱同兴. 安徽中南部下二叠统栖霞组和孤峰组沉积环境及成岩历史[J]. 成都理工大学学报(自然科学版), 1990, 0(1) |
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| 作者姓名： | 刘宝珺 朱同兴 |
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| 作者单位： | 成都地质矿产研究所(刘宝珺)，成都地质矿产研究所(朱同兴) |
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| 摘 要： | 皖中南地区下二叠统发育8种不同的沉积相带。栖霞组下部主要发育滨岸细碎屑岩相带和半局限海台地相带,中上部发育开阔海台地相带、较深水台凹相带和台棚内带;早中孤峰期发育台棚外带、台棚内带和台地边缘缓坡相带,晚孤峰期在宿松地区发育了台地边缘生物滩相带。研究区下二叠统成岩环境划为海底-浅埋藏、中埋藏、深埋藏和表生成岩环境。并阐述了这4种成岩环境内的成岩作用类型组合标志。
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| 关 键 词： | 灰岩 硅质岩 沉积相 成岩作用 早二叠世 |
SEDIMENTARY ENVIRONMENTS AND DIAGENETIC HISTORY OF QIXIA AND GUFENG FORMATIOS, LOWER PERMIAN IN CENTRAL AND SOUTHERN ANHUI, SE CHINA |
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| Liu Baojun,Zhu Tongxing. SEDIMENTARY ENVIRONMENTS AND DIAGENETIC HISTORY OF QIXIA AND GUFENG FORMATIOS, LOWER PERMIAN IN CENTRAL AND SOUTHERN ANHUI, SE CHINA[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 1990, 0(1) |
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| Authors: | Liu Baojun Zhu Tongxing |
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| Affiliation: | Liu Baojun;Zhu Tongxing |
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| Abstract: | The Lower Permian exhibits eight different facies belts in central and southern Anhui. The lower Qixia Formation shows mainly offshore fine frained clastics and hemi-restricted sea platform facies. Themiddle and upper Qixia Formations show development of deeper water intra-platform depression facies, open sea platformfacies, and inner platform-sheif facies. Early to middle Gufeng Formations are of outer and inner platform-shelf faciesand platform marginal ramp. Late Gufeng is of platform merginal organic shoal facies in Susong. The diagenetic environments of the Lower Permian in the study area may be divided into four groups: (l)subma-rine-shallow burial, (2)medium burial, (3)deep burial and (4)epidiagenetic environments. The 4 diagenetic patterns aredescribed in this paper. |
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| Keywords: | Limestones siliceous rock sedimentary facies diagenesis early Permian |
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