| 对大洋多金属结核10A锰矿物相的研究 |
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| 引用本文：刘淑琴,潘家华.1998.对大洋多金属结核10A锰矿物相的研究[J].地球学报,19(3):288-297. |
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| 中文摘要:对大洋多金属结核中１０Ａ锰矿物的研究、认识长期以来众说纷纭。为探索我国研究区１０Ａ锰矿物的种类，本文从１００多个结核样品中，选出具代表性的以１０Ａ锰矿物为主的１３个样品，进行了热稳定性研究，且归纳总结为３种情况：有７Ａ衍射峰生成，且１０Ａ衍射峰向高角度移动，说明原样中有布赛尔矿Ⅰ型，钴土矿布赛尔矿混层矿物；无７Ａ衍射峰生成，但１０Ａ衍射峰也向高角度移动，说明原样中没有布赛尔矿Ⅰ型，而有钴土矿布赛尔矿混层矿物；无７Ａ衍射峰生成，且１０Ａ衍射峰基本消失，表明原样中有钴土矿。作者尚运用晶体结构理论对上述３种不同情况进行了解释；并得出，我国研究区结核１０Ａ锰矿物相中主要矿物种为布赛尔矿Ⅰ型、钴土矿布赛尔矿混层矿物及钴土矿，不存在或几乎不存在钡镁锰矿。 |
| 中文关键词:大洋多金属结核 10A锰矿物相 |
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| The Research on 10A Manganese Mineral Phase in the Oceanic Polymetallic Nodules |
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| Abstract:The conclusion of the research on 10A manganese minerals in the oceanic polymetallic nodules have argued for a long time.In order to explore the species of 10A manganese minerals in our research area,the authors choosed thirteen representative samples mainly composed of 10A manganese minerals from more than 100 nodule samples and studied their thermal stability.Three different cases were summarized:The appearance of 7A diffraction peak and the movement of 10A diffraction peak to higher angle show the existence of buserite Ⅰ and asbolane_buserite mixed_layer mineral in the original samples∶The absence of 7A diffraction peak and the movement of 10A diffraction peak to higher angle indicate that there isn't buserite I but asbolane_buserite mixed_layer mineral in the original samples:The absence of 7A diffraction peak and the basic disappearance of 10A diffraction peak illustrate the existence of asbolane in the original samples;The authors explained above phenomena by using the theory of crystal structure and pointed out that the main species of 10A manganese minerals in the nodules in our research area are buserite Ⅰ,asbolane_buserite mixed_layer mineral and asbolane,no or almost no todorokite is present. |
| keywords:oceanic polymetallic nodules 10A manganese mineral phase |
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