初论发现于西太平洋富钴结壳的羟锰矿

现代地质 ›› 2007, Vol. 21 ›› Issue (2): 371-375.

初论发现于西太平洋富钴结壳的羟锰矿

赵磊,田川,杨华,王丽娟,方念乔

1中国地质大学海洋学院, 北京100083; 2中国地质大学地质过程与矿产资源国家重点实验室, 北京100083 ;
3中国五矿集团公司, 北京100044

收稿日期:2007-02-01 修回日期:2007-04-21 出版日期:2007-02-20 发布日期:2007-02-20
作者简介:赵磊, 女, 教授,博士生导师，1951年出生, 矿物学、岩石学、矿床学专业, 主要从事海洋矿产及岩石学等教学与科研工作。Email: zhaolei51yh@yahoo.com.cn。
基金资助:
国际海底区域研究开发“十五”项目(DY105-01-04-14)

Initial Discussion on Pyrochroite of the Cobalt-Rich Crusts in the Western Pacific

ZHAO Lei^1,2 ,TIAN Chuan^1,3, YANG Hua^1,2,WANG Li-juan²,FANG Nian-qiao¹

1School of Marine, China University of Geosciences, Beijing100083, China;
2State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing100083, China;
3China Minmetals Corporation, Beijing100044, China

Received:2007-02-01 Revised:2007-04-21 Online:2007-02-20 Published:2007-02-20

摘要/Abstract

摘要：

大多数研究者认为富钴结壳中的锰矿物主要是水羟锰矿。X-射线衍射数据表明这次所研究的富钴结壳中主要的富锰矿物相是羟锰矿，这是在以往的结核和结壳研究中鲜为人知。探讨了羟锰矿和水羟锰矿的名称由来、化学式、晶胞参数及X射线粉晶衍射值，建议将X-射线衍射特征值为2.4×10^-10 m和1.4×10^-10 m的锰矿物相统称为水羟锰矿；通过研究这两种矿物的成因、产状及环境，认为结壳中羟锰矿的存在表明结壳在生长中后阶段仍处于还原环境。

关键词: 富钴结壳, 羟锰矿, 水羟锰矿, 西太平洋

Abstract:

The majority of researchers believe that the dominant manganese oxide of Co-rich crusts is vernadite. The data of X-ray diffraction show that pyrochroite is the main mineral oxide phase, which was rarely known in the former studies of manganese nodules and Co-rich crusts. This paper discusses the origin, chemical formula, cell parameter and X-ray powder diffraction data of pyrochroite and vernadite, and suggests that the manganese oxide phase with the values of 2.4×10^-10 m and 1.4×10^-10 m is named as vernadite. The author conjectures that pyrochroite of the Co-rich crusts indicates that the environment of growth of the Co-rich crusts was reducing environment which remained in the later stage.

Key words: Co-rich crusts, pyrochroite, vernadite, Western Pacific

中图分类号:

P578

赵磊,田川,杨华,王丽娟,方念乔. 初论发现于西太平洋富钴结壳的羟锰矿[J]. 现代地质, 2007, 21(2): 371-375.

ZHAO Lei ,TIAN Chuan, YANG Hua,WANG Li-juan,FANG Nian-qiao. Initial Discussion on Pyrochroite of the Cobalt-Rich Crusts in the Western Pacific[J]. Geoscience, 2007, 21(2): 371-375.

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