A MOSSBAUER-SPECTROSCOPY STUDY ON IRON IN MARINE-SEDIMENTS

被引：5

作者：

CHEN, SY ^{[1
]}

TAKEMATSU, N ^{[1
]}

AMBE, S ^{[1
]}

AMENT, A ^{[1
]}

AMBE, F ^{[1
]}

机构：

[1] ACAD SINICA,S CHINA SEA INST,CANTON 510301,PEOPLES R CHINA

来源：

HYPERFINE INTERACTIONS | 1994年 / 91卷 / 1-4期

关键词：

D O I：

10.1007/BF02064603

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The chemical states of iron in near-shore and deep-sea sediments were investigated by means of Fe-57 Mossbauer spectroscopy using selective and chemical leachings. The Fe2+/Fe3+ ratios of deep-sea sediments were much smaller than those of near-shore sediments, while the total contents of iron in the former were much higher than those in the latter. This is principally due to the high content of hydrogenous ferric oxyhydroxide in deep-sea sediments. Also, in the aluminosilicate fraction, the Fe2+/Fe3+ ratios of deep-sea sediments were smaller than those of near-shore sediments. This is probably attributed to the difference in the silicate mineral composition between deep-sea and near-shore sediments. X-ray reflections of clay minerals normalized to those of feldspars and quartz were more intense in deep-sea sediments than in near-shore sediments.

引用

页码：759 / 763

页数：5

共 6 条

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