| 海底铁锰结核纹层和柱状构造成因的探讨 |
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| 引用本文： | 许东禹,阎葆瑞.海底铁锰结核纹层和柱状构造成因的探讨[J].海洋地质与第四纪地质,1998,18(3):31-36. |
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| 作者姓名： | 许东禹 阎葆瑞 |
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| 作者单位： | [1]地质矿产部海洋地质研究所 [2]地质矿产部水文地质工程地质研究所 |
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| 基金项目： | 国家自然科学基金,大洋协会项目 |
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| 摘 要： | 铁锰结核的内部构造反映了其生长环境，也反映了生长机制，由于微生物生态演替造成的氧化和还原条件的交替，产生了具有不同矿物和化学成分的纹层和柱状构造。
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| 关 键 词： | 铁锰结核 纹层 微生物 柱状构造 海底 |
DISCUSSION ON LAMINAR AND COLUMNAR STRUCTURES OF FERROMANGANESE NODULES ON THE SEA FLOOR |
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| Xu,Dongyu.DISCUSSION ON LAMINAR AND COLUMNAR STRUCTURES OF FERROMANGANESE NODULES ON THE SEA FLOOR[J].Marine Geology & Quaternary Geology,1998,18(3):31-36. |
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| Authors: | Xu Dongyu |
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| Abstract: | Mineralogical analysis,microprobe analysis and microbiological mineralization simulation experiments show that there are changes of Fe and Mn contents in different laminae and these changes are in positive or negative relations with P 2O 5 and SiO 2 contents,and also the separation of Mn from Fe has something to do with the changes of Eh and pH values.Thus we can say that the repetition of media oxidation and reduction under the action of sea floor micro organisms is the true cause of the formation of laminar and columnar structures of ferromanganese nodules. |
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| Keywords: | ferromanganese nodule laminar structure columnar structure microbiological mineralization |
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