| 大洋多金属结核中1nm锰矿相的相变及其主要控制因素研究 |
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| 引用本文： | 冯旭文,钱江初,张培志.大洋多金属结核中1nm锰矿相的相变及其主要控制因素研究[J].矿物学报,2003,23(2):109-114. |
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| 作者姓名： | 冯旭文 钱江初 张培志 |
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| 作者单位： | 1. 国家海洋局,第二海洋研究所,浙江,杭州,310012;国家海洋局,海底科学重点实验室,浙江,杭州,310012
2. 浙江科技学院,浙江,杭州,310012 |
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| 基金项目： | 国家海洋局海底科学重点实验室开放基金 ( 2 0 0 10 1)，人事部留学基金 ( 2 0 0 0年 ) |
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| 摘 要： | 多金属结核样品在室温中放置或加热干燥后 ,其中的 1nm锰矿相会部分或全部地相变为 0 7nm锰矿相 ,这说明 0 7nm锰矿相可能不是多金属结核的原生锰矿相 ,而仅仅是 1nm锰矿相的相变产物。研究结果表明 :1nm锰矿相结构中的Cu2 + 、Co2 + 、Ni2 + 等金属阳离子的含量与其结构稳定性有正相关关系 ,即金属离子含量越高 ,其结构越稳定 ,1nm锰矿相越不易相变为 0 7nm锰矿相 ,反之亦然 ;另外 ,不同金属阳离子稳定 1nm锰矿相结构的能力也不同 ,结核中几种主要金属阳离子对 1nm锰矿相结构的稳定能力从大到小为 :Ni2 + >Cu2 + >Co2 + >Zn2 + >Ca2 + =Mg2 + 。
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| 关 键 词： | 多金属结核 锰矿相 相变 锰矿床 结构稳定性 控制因素 |
| 文章编号： | 1000-4734(2003)02-0109-06 |
| 修稿时间： | 2002年10月27 |
THE STUDY OF PHASE CHANGE OF 1nm MANGANATE IN POLYMETALLIC NODULES AND ITS MAIN CONTROLLING FACTORS |
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| FENG Xu-wen ,QIAN Jiang-chu ,ZHANG Pei-zhi.THE STUDY OF PHASE CHANGE OF 1nm MANGANATE IN POLYMETALLIC NODULES AND ITS MAIN CONTROLLING FACTORS[J].Acta Mineralogica Sinica,2003,23(2):109-114. |
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| Authors: | FENG Xu-wen QIAN Jiang-chu ZHANG Pei-zhi |
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| Institution: | FENG Xu-wen 1,2,QIAN Jiang-chu 1,2,ZHANG Pei-zhi 3 |
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| Abstract: | It is found that more or less 1nm manganate in polymetallic nodules can be changed into 0.7nm manganate after dried or heated at room temperature for 5 hours. This could be inferred that the 0 7nm manganate in the nodule is not the original mineral phase but only the product of phase change from the 1nm manganate. It is also found that there is a positive correlation between the structural stability of 1nm manganate and the volume of cations in the structure. Different cations have different contributions to the stabilization of the structure of 1nm manganate, and the sequence of the stabilizing capacity of the cations may follow the order of Ni 2+>Cu 2+>Co 2+>Zn 2+>Ca 2+ = Mg 2+. |
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| Keywords: | polymetallic nodule 1nm manganate phase change structural stability |
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