Recognition, genesis and evolution of manganese ore deposits in;southeastern China

doi:10.1016/j.oregeorev.2013.05.001

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	Recognition, genesis and evolution of manganese ore deposits in;southeastern China
	Du, Qiuding 4; Yi, Haisheng 1; Hui, Bo 2; Li, Shengjun 1; Xia, Guoqing 1; Yang, Wei 1; Wu, Xiangfeng 1
刊名	ORE GEOLOGY REVIEWS
	2013
卷号	55 页码:99-109
关键词	Manganese oncolite Microbiogenic Redox level Falang Formation Middle Triassic Southeastern Yunnan
ISSN号	0169-1368
DOI	10.1016/j.oregeorev.2013.05.001
英文摘要	Manganese ore deposits are common in the Falang Formation of Ladinian age (Middle Triassic), southeastern Yunan, China. The deposits containing manganese oxide and manganese carbonate ores are not metamorphic in origin and they commonly contain bioclasts. Concentric ring structures are clearly observed in oolitic and pisolitic manganese ores. An integrated approach using sedimentology and paleoenvironment analysis provides new insight into the genesis of these ores. Systematic research has been conducted on typical deposits (Dounan, Yanzijiao, Laowu, Tujichong) using cathodoluminescence and scanning electron microscope techniques, which allow elucidation of changes in laminated microtextures at the mm-mu m scale. Preliminary results show that manganese enrichment in Triassic deposits of this region may be related to microbial activity and mineralization was a consequence of bacterially mediated diagenetic reactions. In addition, findings of biodetritus in the manganese ore indicate that manganese ore is close to the redox level. The concentration of manganese in solution and in precipitates in Triassic is controlled by bacterial oxidation and redox conditions corresponding to sea level changes during the Ladinian. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	矿床地质
WOS关键词	ANOXIC MARINE-SEDIMENTS ; BLACK-SHALE BASINS ; CARBONATE ORE ; STROMATOLITES ; OXIDATION ; ORIGIN ; METALLOGENESIS ; GEOCHEMISTRY ; ENVIRONMENT ; HUNGARY
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000322749800008
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39987]
专题	中国地质调查局成都地质调查中心
作者单位	1.Chengdu Inst Geol & Mineral Resources, Chengdu 610082, Peoples R China. 2.Chengdu Univ Technol, Inst Sedimentary Geol, Chengdu 610059, Peoples R China. 3.Chinese Acad Geol Sci, Inst Multipurpose Utilizat Mineral Resources, Chengdu 610041, Peoples R China. 4.中国地质调查局成都地质调查中心
推荐引用方式 GB/T 7714	Du, Qiuding,Yi, Haisheng,Hui, Bo,et al. Recognition, genesis and evolution of manganese ore deposits in;southeastern China[J]. ORE GEOLOGY REVIEWS,2013,55:99-109.
APA	Du, Qiuding.,Yi, Haisheng.,Hui, Bo.,Li, Shengjun.,Xia, Guoqing.,...&Wu, Xiangfeng.(2013).Recognition, genesis and evolution of manganese ore deposits in;southeastern China.ORE GEOLOGY REVIEWS,55,99-109.
MLA	Du, Qiuding,et al."Recognition, genesis and evolution of manganese ore deposits in;southeastern China".ORE GEOLOGY REVIEWS 55(2013):99-109.