资源环境学院机构知识库

Institutional Repository, College of Earth Environmental Sciences

 

兰州大学机构库  > 资源环境学院  > 期刊论文
题名: Low-temperature alteration of oceanic island basalts and their contribution to transition metal circulation of the ocean
作者: Bu, WR; Shi, XF; Peng, JT; Liu, JH; Zhang, MJ(张铭杰); Qi, L
收录类别: SCIE ; CSCD
出版日期: 2008
刊名: ACTA OCEANOLOGICA SINICA
卷号: 27, 期号:2, 页码:35-54
期刊主办单位: 中国海洋学会
出版者: SPRINGER
出版地: NEW YORK
英文摘要: The major elements, rare earth elements (REE) and trace elements of four basalt samples from central and western Pacific ferromanganese crust provinces have been analyzed ming chemical methods and ICP - MS, respectively. The results indicate that the samples have been extensively altered and that the contents of their major elements have changed significantly. However, the similarity of REE partition patterns and trace element contents of basalt samples to those of fresh oceanic island basalts (OIB) indicate that the basalt samples originated as OIB. Because of low-temperature alteration, the contents of Al(2)O(3), Fe(2)O(3), MnO, K(2)O and P(2)O(5) increased, while MgO and FeO decreased. Active components, such as magnesium and iron, were leached from OIB resulting in the relative enrichment of SiO(2). The leaching of active components can cause the relative enrichment of REE, while the precipitation of LREE-rich ferromanganese oxide, in vesicles and fissures not only causes an increase of REE contents, but also induces "fractionation" of LREE and HREE. Based on the enrichment mechanism of REE contents, the theoretical quantities of precipitated ferromanganese oxides and the depleted quantities of active components are calculated: the depleted quantities of active components for the unit mass of fresh basalts vary in the range of 0.15 similar to 0.657, and the precipitated quantities of ferromanganese oxides for the unit mass of fresh basalts vary in the range of 0.006 similar to 0.042. Of the major elements, the two most depleted are iron, and magnesium, with 18.28% similar to 70.95% A iron and 44.50% similar to 93.94% of magnesium in the fresh basalts was leached out. Theoretical calculation and geochemistry results both indicate that low-temperature alteration of basalts can supply abundant amount of metals to seawater, and may play an important role in ocean metal circulation.
关键词: oceanic island basalts (OIB) ; low-temperature alteration ; ocean metal circulation ; theoretical calculation ; cobalt-rich ferromanganese crusts
作者部门: [Bu Wenrui ; Shi Xuefa ; Liu Jihua] State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China ; [Peng Jiantang ; Qi Liang] Chinese Acad Sci, Inst Geochem, Guiyang 550002, Peoples R China ; [Zhang Mingjie] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China
通讯作者: Bu, WR (reprint author), State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China.
学科分类: Oceanography
文章类型: Article
语种: 英语
ISSN号: 0253-505X
WOS记录号: WOS:000256131900005
CSCD记录号: CSCD:3299762
第一机构:
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/119794
Appears in Collections:资源环境学院_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
Low-temperature alteration of oceanic island basalts and their contribution to transition metal circulation of the ocean.pdf(1798KB)----限制开放 联系获取全文

Recommended Citation:
Bu, WR,Shi, XF,Peng, JT,et al. Low-temperature alteration of oceanic island basalts and their contribution to transition metal circulation of the ocean[J]. ACTA OCEANOLOGICA SINICA,2008,27(2):35-54.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Altmetrics Score
 
Google Scholar
Similar articles in Google Scholar
[Bu, WR]'s Articles
[Shi, XF]'s Articles
[Peng, JT]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Bu, WR]‘s Articles
[Shi, XF]‘s Articles
[Peng, JT]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Email:
Passwd
验 证:
换一张
Have you forgotten your password? Log In
Copyright © 2007-2017  兰州大学 - Feedback
Powered by CSpace