Zhai, Degao, Wang, Jianping, Liu, Jiajun, Zhang, Hongyu, Yao, Meijuan, Yang, Zongfeng, and Chang, Zhaoshan (2010) Nonredox transformations of hematite-magnetite in mineralization process. Geological Review, 56 (6). pp. 801-809.

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Abstract

The transformations of magnetite and hematite, which are main existing forms of iron oxides in nature, have been debated for many years. The transformation of magnetite and hematite in nature has generally been considered as a result of a redox reaction and linked to a specific oxidant or reductant. However, a nonredox reaction mechanism was proposed in recent years and it might be helpful in better understanding the complicated mineralization process. Ore textures caused by replacement of hematite and magnetite in natural environment was summarized in this paper. The nonredox reactions might exist in many different mineralization processes on the basis of evidences from studying on BIF and significances both in theoretical and practical aspects: one hand, it indicates that the presence of magnetite and hematite in geologic formations may not provide meaningful informaiton on the redox state of fluid; the other hand, it will provide new exploration strategies for hematite rich secondary ores, extending the target for orebodies to deep zones below the paleosurface.

Item ID:	26296
Item Type:	Article (Research - C1)
ISSN:	0371-5736
Keywords:	ore textures; magnetite-hematite; nonredox transformations, mineralization process, iron deposit
Additional Information:	Article written in Chinese.
Date Deposited:	21 May 2013 04:08
FoR Codes:	04 EARTH SCIENCES > 0403 Geology > 040307 Ore Deposit Petrology @ 100%
SEO Codes:	84 MINERAL RESOURCES (excl. Energy Resources) > 8401 Mineral Exploration > 840104 Iron Ore Exploration @ 100%
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