Role of Sodium Ion on Stability of the Crystal Structure of Marine 10-Manganates
详细信息
- 责任者：Jiang Xuejun (Key Laboratory of Marine Oil and Gas Resources and Marine Environment ; the Ministry of Land and Resources ; Qingdao 266071 ; China) ; Yao De
- 刊名：Earth Science
- 出版年：2009
- 卷期：34(3)
- 关键词：水锰矿 ; manganite ; 钠离子 ; sodium ion
- 页码：p.392-398
- 图表：5 illus., 3 tables, 16 refs.
- 分类号：0700
- issnNo：ISSN1000-2383
- isbnNo：CN42-1233/P
摘要
The 10-manganate is main mineral component of the marine diagenetic nodule and terraneous manganese. The previous study has proved that the transition metals—copper, nickel play an improtant role in the stability of 10-manganates. However, the geochemical behavior of sodium ions is seldom involved in the previous researches. The role of sodium ions on the stability of 10-manganates was investigated in terms of the selective dissolution experiments and adsorption experiments as well as crystal chemistry and mineralogy by using the marine diagenetic nodule recovered near the equatorial East Pacific. Sodium ions in 10-manganates can be extracted by weak acidic and 10-manganates transform into 7-manganates.