两相淋滤实验在深海铁锰结核研究中的应用

祝飞扬; 李怀明; 姚鹏飞; 王潇; 朱继浩; 吕士辉; 罗祎; 周丽娜; 刘禹维; 唐煜童

doi:10.3969/j.issn.1001-909X.2023.02.007

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海洋学研究 ›› 2023, Vol. 41 ›› Issue (2) : 83-93. DOI: 10.3969/j.issn.1001-909X.2023.02.007

研究论文

两相淋滤实验在深海铁锰结核研究中的应用

祝飞扬 ¹^,² ,
李怀明 ¹^,²^,³^,^* ,
姚鹏飞 ¹^,² ,
王潇 ¹^,² ,
朱继浩 ¹^,² ,
吕士辉 ⁴ ,
罗祎 ⁵ ,
周丽娜 ³ ,
刘禹维 ⁶ ,
唐煜童 ¹^,²

作者信息 +

Application of two-phase leaching method in the study of ferromanganese nodule mineralization

ZHU Feiyang ¹^,² ,
LI Huaiming ¹^,²^,³^,^* ,
YAO Pengfei ¹^,² ,
WANG Xiao ¹^,² ,
ZHU Jihao ¹^,² ,
LÜ Shihui ⁴ ,
LUO Yi ⁵ ,
ZHOU Li’na ³ ,
LIU Yuwei ⁶ ,
TANG Yutong ¹^,²

Author information +

文章历史 +

摘要

两相淋滤实验能够分离深海铁锰结核的水生矿物相和残留矿物相组分,为研究深海铁锰结核成矿作用以及古海洋环境提供直接信息。为了探讨两相淋滤实验在不同成因类型铁锰结核成矿作用研究中与全岩样品分析结果的差异,本文选取了西太平洋海山区和东太平洋CC区6个站位的铁锰结核样品进行了全岩样品矿物学和元素地球化学分析,利用两相淋滤实验分别提取了铁锰结核样品的水生矿物相和残留矿物相组分,并进行了元素地球化学分析。结果表明,不同类型铁锰结核的两相淋滤实验中残留相质量占比为14.0%~17.6%,变化较小,残留矿物相组分中Nb、Rb、Ta、Ti、Zr等元素含量较高。水生矿物相组分中的Co、Ni、Cu、Zn、Sr、REY元素含量及其比值变化与全岩样品基本一致。水生矿物相与残留矿物相中Ti、Nb、Sr含量的比值与全岩样品的Mn/Fe值呈较好的负相关关系,可作为研究铁锰结核成矿环境的指标参数。

Abstract

Two-phase leaching method can separate hydrogenetic and residual mineral phases of ferromanganese nodules, which will provide valuable information with the research of ferromanganese nodule mineralization and pale-environment. In order to study the applicability of the two-phase leaching method in the nodule mineralization research for different types of nodules compared to the bulk sample results, the ferromanganese nodules samples from six stations were selected, which were collected on the seamounts area of western Pacific Ocean and CC Zone of eastern Pacific Ocean, respectively. Geochemical and mineralogical compositions of the bulk samples were analyzed, and elements compositions of the hydrogenetic and residual mineral phases were analyzed, which were obtained using the two-phase leaching method. The results indicated that the mass ration variation of the residual mineral phases was not obvious with about 14.0%-17.6%, which had high contents of Nb, Rb, Ta, Ti, Zr. Contents and relevant rations of elements such as Co, Ni, Cu, Zn, Sr, REY in the hydrogenetic mineral phase showed similar features with those in the bulk samples. Proportion of elements contents like Ti, Nb, Sr between hydrogenetic and residual mineral phases showed well negative correlation with Mn/Fe values, which probably could be regarded as index for ferromanganese nodule mineralized environment research in the future.

导出引用

祝飞扬, 李怀明, 姚鹏飞, 等. 两相淋滤实验在深海铁锰结核研究中的应用[J]. 海洋学研究. 2023, 41(2): 83-93 https://doi.org/10.3969/j.issn.1001-909X.2023.02.007

ZHU Feiyang, LI Huaiming, YAO Pengfei, et al. Application of two-phase leaching method in the study of ferromanganese nodule mineralization[J]. Journal of Marine Sciences. 2023, 41(2): 83-93 https://doi.org/10.3969/j.issn.1001-909X.2023.02.007

中图分类号： P744

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