| 安徽巢湖凤凰山石炭纪岩石特征及沉积环境分析 |
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| 引用本文： | 侯明金,齐敦伦,金义祥.安徽巢湖凤凰山石炭纪岩石特征及沉积环境分析[J].安徽地质,1998(3). |
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| 作者姓名： | 侯明金 齐敦伦 金义祥 |
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| 作者单位： | 安徽地质调查院 |
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| 摘 要： | 巢湖市北郊石炭纪地层发育齐全，沉积环境多样，海平面升降频繁。根据岩性、生物与沉积构造等相标志，将其划分为开放海湾、潮坪、潮下浅滩、开阔台地等沉积相。对和州组顶部炉渣状灰岩的形成机制提出不同见解。
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| 关 键 词： | 石炭纪 地层 岩石特征 沉积环境 安徽巢湖 |
THE PETROLOGICAL CHARACTERISTICS AND SEDIMENTARY ENVIRONMENTS OF CHAOHU CITY,ANHUI PROVINCE |
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| Hou Mingjin,Qi Dunlun,Jin Yixiang.THE PETROLOGICAL CHARACTERISTICS AND SEDIMENTARY ENVIRONMENTS OF CHAOHU CITY,ANHUI PROVINCE[J].Geology of Anhui,1998(3). |
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| Authors: | Hou Mingjin Qi Dunlun Jin Yixiang |
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| Abstract: | The section studied in this paper is located in the Fenghuangshan, Chaohu City,Anhui Province The Carboniferous system is well developed and fossils are very abundant It is 83 83 m thick and can be divided into the Jinling Formation, Gaolishan Formation and Hezhou Formation of the Lower Carboniferous, and Huanglong Formation and Chuanshan Formation of the Upper Carboniferous The contact is conformable between the Jinling Formation and the underlying Devonian, and the contacts are pseudoconformable among the other formations The rocks are dominated by carbonate rocks, and clastic rocks are secondary.Carbonate rocks can be divided into sparry biograin limestones,sparry sandgrain limestones,sparry algalball limestones,limemud biograin limestones,limemud gravel limestones, biograin limestones, biograin-bearing limemud limestones, intraclast-bearing limemud limestones,limemud limestones and limestones, and there are also some dolostones Clastic rocks include quartz fine sandstones,siltstones,mudstones and shales The characteristics and origin of each type of rock are briefly described and discussed Petrological characteristics,fossil assemblages and sedimentary sequence analysis indicate that the sedimentary environments of the study area were shallow water platform in the early Jinling age and wide platform the late Jinling age, wide platform the early Gaolishan age and shallow beach the late Gaolishan age, typical tidal flat the Hezhouage, wide platfom and shallow beach the Huanglong age and Chuanshan age |
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| Keywords: | Carboniferous system strata petrological characteristics sedimentary environment Chaohu Anhui |
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