Mineralogical and geochemical compositions of the coal in the Guanbanwusu Mine, Inner Mongolia, China: Further evidence for the existence of an Al (Ga and REE) ore deposit in the Jungar Coalfield

Dai, Shifeng; Jiang, Yaofa; Ward, Colin R.; Gu, Landing; Seredin, Vladimir V.; Liu, Huidong; Zhou, Dao; Wang, Xibo; Sun, Yuzhuang; Zou, Jianhua; Ren, Dongdong

doi:10.1016/j.coal.2012.03.003

Cited by 263 publications

(169 citation statements)

References 66 publications

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“…The inertinite contents of the three Upper No.3 coals from southwestern Shandong coalfield are higher than those of other Late Paleozoic coal in northern China (generally less than 25% [28]). Nevertheless, the inertinite content in coal present in this study are lower than the inertinite content of the No.6 coal in Jungar Coalfield (including Guanbanwusu [29], Haerwusu [30] and Heidaigou [31] mines), in the northern Ordos Basin in northern China, in which inertinite contents are 56.7%, 53.7%, 37.4%, respectively. The Carboniferous-Permian coals of the Daqingshan coalfield have an inertinite content of 35.3% [32] ( Figure 4).…”

Section: Maceral Compositionsmentioning

confidence: 86%

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Mineralogical and Geochemical Characteristics of the Early Permian Upper No. 3 Coal from Southwestern Shandong, China

et al. 2016

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Abstract:The Upper No. 3 coal of the Early Permian age is a major workable seam in the southwestern Shandong coalfield, which is located in the eastern part of North China. From Early Jurassic to Neogene, the coalfield was subjected to intensive tectonic processes, leading to a significant rearrangement in depth of coal seams. In this paper, three Upper No. 3 coals occurring at´228,´670 and´938 m in the Luxi, Liangbaosi, and Tangkou mines, respectively, were collected to investigate their mineralogical and geochemical characteristics, with emphasis on modes of occurrence and origin of epigenetic minerals. The three coal seams are similar in vitrinite reflectance, volatile matter yield, and maceral components, suggesting insignificant influence from the tectonic activities on coal rank. Terrigenous minerals (e.g., kaolinite and quartz) are comparable in both types and distribution patterns in the three coals. The presence of siderite and pyrite of syngenetic or penecontemporaneous origin indicate they were emplaced during peat accumulation. The distribution of epigenetic minerals (e.g., calcite, ankerite, and dolomite) are associated with the underground water activities, which were Ca (Mg, Fe)-bearing.

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Section: Maceral Compositionsmentioning

confidence: 86%

“…The Al 2 O 3 /TiO 2 ratio is a valuable provenance indicator of sedimentary rocks [28,29], because the ratio of Al 2 O 3 versus TiO 2 in mudstones/sandstones to the same ratio in their parent rocks [42]. The Al 2 O 3 /TiO 2 ratios is also applied as a provenance indicator for coal and coal-bearing strata [2,40,[43][44][45][46].…”

Section: Terrigenous Mineralsmentioning

confidence: 99%

Mineralogical and Geochemical Characteristics of the Early Permian Upper No. 3 Coal from Southwestern Shandong, China

et al. 2016

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“…Bitumen reflectance was measured using a 3Y-Leica DMR XP microphotometer, according to the usual method of coal petrology as described by Dai et al (2012). Depending on the maturity of the bitumen sample to be measured, a matching standard sample was selected for use from the three available standard samples of YAG-08-57 (R o = 0.904%), NR1149 (R o = 1.24%) and cubic zirconia (R o = 3.11%).…”

Section: Sample and Experimentsmentioning

confidence: 99%

The relationship between micro-Raman spectral parameters and reflectance of solid bitumen

Zhou

Xiao

Pan

et al. 2014

International Journal of Coal Geology

114

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“…Because of their stable chemical properties during coal combustion, such as higher fusion and boiling point, the REY may primarily accumulate more in the ash (Zhao 2002;Ren et al 2006). There are some researches on the coal deposits being potential alternative sources and a promising raw material for extracting REY as by-product in recent years (Eskenazy 1987(Eskenazy , 1999Seredin 1996;Ren and Dai 2009;Dai et al 2012aDai et al , 2013Dai et al , 2014Seredin and Dai 2012).…”

Section: Introductionmentioning

confidence: 99%

Anomaly and geochemistry of rare earth elements and yttrium in the late Permian coal from the Moxinpo mine, Chongqing, southwestern China

Zou

Liu

Tian

et al. 2014

Int J Coal Sci Technol

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The rare earth elements and yttrium (REY) of the K2 coal from the Moxinpo mine, Chongqing, were determined using inductively coupled plasma mass spectrometry (ICP-MS). The results show that REY are enriched in the K2 coal, with the average content up to 462 lg/g, much higher than average values of most coals in the world. The REY distribution patterns indicate that the light REY is enriched and show a well-pronounced Eu minimum. The fractionation of individual light-REY is higher than that of the heavy-REY. The REY distribution through the K2 coal seam shows that the top and bottom portion of the coal seam have a lower content of REY than the middle portion. Goyazite and rhabdophane were identified with a scanning electron microscope equipped with an energy-dispersed X-ray spectrometer (SEM-EDX). The REY distributions through the coal seam, SEM-EDX data and the correlation analysis between ash yields and the concentrations have revealed that the REY mainly occurs in the organic matter. The K2 coal is a potential rare-metal resource due to its high REY contents, and the coal ash could be regarded as a new and promising raw material for recovery of REY as a by-product.

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Mineralogical and geochemical compositions of the coal in the Guanbanwusu Mine, Inner Mongolia, China: Further evidence for the existence of an Al (Ga and REE) ore deposit in the Jungar Coalfield

Cited by 263 publications

References 66 publications

Mineralogical and Geochemical Characteristics of the Early Permian Upper No. 3 Coal from Southwestern Shandong, China

Mineralogical and Geochemical Characteristics of the Early Permian Upper No. 3 Coal from Southwestern Shandong, China

The relationship between micro-Raman spectral parameters and reflectance of solid bitumen

Anomaly and geochemistry of rare earth elements and yttrium in the late Permian coal from the Moxinpo mine, Chongqing, southwestern China

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