X-射线荧光光谱法定量分析海山富钴结壳中MnO<sub>2</sub>与MnO的含量之比值

邬黛黛; 韩杰; 叶瑛; 张维睿

X-射线荧光光谱法定量分析海山富钴结壳中MnO₂与MnO的含量之比值

1.
浙江大学, 地球科学系, 浙江, 杭州, 310027
2.
浙江大学, 地球科学系, 浙江, 杭州, 310027;中国石油塔里木油田分公司, 勘探开发研究院, 新疆, 库尔勒, 841000

基金项目: 国家“十五”大洋专项基金资助项目(DY105-01-04-3)

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出版历程
- 收稿日期: 2006-04-11
- 修回日期: 2006-11-08

Quantitative analysis on ratio of MnO₂ content to MnO one in cobalt-rich manganese crusts on seamounts by X-ray fluorescence spectrometer

1.
Department of Earth Science, Zhejiang University, Hangzhou 310027, China
2.
Department of Earth Science, Zhejiang University, Hangzhou 310027, China;Research Institute of Exploration and Development, Tarim Oilfield Company, Petro China, Kuerle 841000, China

摘要

摘要: 通过普通X-射线荧光光谱仪,结合PeakFit谱峰处理软件,对不同比例的MnO和MnO₂的混合样品的K_β谱峰参数进行了研究,用数学方法将实测的谱峰分解为各个单一的谱峰参数(峰位、峰高、半高宽、子峰面积),找出了各个谱峰参数与不同价态锰的含量之间的关系,并据此确定了中太平洋海山区大量富钴结壳样品中不同价态锰的相对含量.分析结果显示,富钴结壳中+4价锰从核心向外有增高的趋势,可以认为这与该区第三纪以来南极底流活动的增强有关.
- X-射线荧光光谱 /
- MnO₂与MnO的含量之比值 /
- 富钴结壳 /
- 南极底流
Abstract: The spectral peak parameters of mixed samples with different ratios of MnO content to MnO₂ one were analysed by X-ray fluorescence spectrometer and processing software Peak Fit.Various single spectral peak parameters such as peak position,peak intensity and full width at half marimal were obtained by deconvolution of over lapped spectral peaks.The relationship between the peak parameters and the ratio of MnO₂ content to MnO one was determined.According to the refation,the ratio of MnO₂ content of MnO one in a number of cobalt-rich manganese crusts from the central Pacific seamounts was quantitatively calculated.The results show that MnO₂ content in cobalt-rich manganese crusts increases from the core outwards.It is believed that this tendency has been related to the enhancing activity of Antarctic Bottom Water in this area since Tertiary.
- X-ray fluorescence spectrum /
- the ratio to MnO₂ content of MnO one /
- cobalt-rich crusts /
- Antarctic Bottom Water

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