| 中国南方龙潭植物群的生态及乐平煤之沉积环境 |
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| 引用本文： | 陈其楁.中国南方龙潭植物群的生态及乐平煤之沉积环境[J].浙江国土资源,1996(2). |
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| 作者姓名： | 陈其楁 |
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| 作者单位： | 中国石油天然气总公司杭州石油地质研究所!杭州，310023 |
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| 基金项目： | 国家“八五”攻关项目!《南通—萍乡地区二叠系煤成烃机理研究及评价》 |
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| 摘 要： | 作者经对海南岛红树林生态环境及红树林泥炭沉积环境的考察，综合研究了前人已有植物化石的解剖特征和红树林植物解剖特征后，认为龙潭植物群是以真政和种子蕨、楔叶纲、科达纲为主，生长在潮间带和潮上带，具有热带雨林和季雨林特征的一类特殊的类红树林植物群。指出二叠纪龙潭植物群中含有多种与现代红树林植物解剖特征类似的植物化石，其古生态环境应类似于海南岛现代红树林植物群的生态环境。依据二叠纪龙潭煤系中乐平煤的地球化学特征及煤层中所含的海相动物化石，佐证了乐平煤为泥炭坪红树林沼泽沉积环境，其煤层具有较高的生烃潜力。
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| 关 键 词： | 红树林 龙潭植物群 乐平煤 沉积环境 二叠纪 中国南方 |
ECOLOGY OF LONGTAN FLORA AND SEDIMENTARY ENVIROMENTS OF LOPING COAL IN SOUTHERN CHIAN |
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| Authors: | Chen Qishi |
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| Abstract: | Longtan coal-serles of late Permian was the most important coal-bearing strate, inSouthern China. Loping coal is a peculiar kind of coal in China, which is mainly distributedin the area of Jiangsu-Zhejiang-Anhui and Jiangxi. Having investigated the ecologic environment of the modern mangrove and the sedimentary environment of the mangroves peat in Hainan Island, and comprehensively studing theavailable data of the dissection characteristics of fossil plants and modern mangroves, the author believes that the Longtan flora, mainly composed of Filices, Pteridospermopsida,Sphenoppsida and Cordaitopsida, was a peculian flora that is characteristic of tropical rainforest and monsoon rain forest growing in intertidal and supralittoral zones, and environmentanalogous to that of present mangrove in Hainan. There are mang species of fossil plantssimilar to anatomical characteristics of mangroves in Longtan flora. The analysis of bothgeochemical data of the Loping coal and the marine zoolites from Longtan coal-measuresproved that Loping coal was formed in a swamp environment of mangrove peat, having agood hydrocarbon potential. |
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| Keywords: | mangrove Lontan flora Loping-coal Sedimentary environment Permian Period South of China |
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