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Título: | New Data and Evidence on the Mineralogy and Geochemistry of Wulantuga High-Ge Coal Deposit of Shengli Coalfield, Inner Mongolia, China |
Autor: | Yao, Chen; Zhuang, Xinguo; Querol, Xavier CSIC ORCID ; Li, Jing; Li, Baoqing; Moreno, Natalia CSIC ORCID ; Zhang, Feng | Palabras clave: | China Germanium Coal Wulantuga Coalified trunk |
Fecha de publicación: | 24-dic-2019 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Minerals 10 (1): 17 (2020) | Resumen: | The mode of occurrence and origin of highly-enriched trace elements, especially Ge, in Wulantuga high-Ge coal deposit have been widely reported. In this study, coal samples and several coalified trunks embedded within the roof strata are collected, which provides a good opportunity to further confirm if Ge is mainly associated with organic matter. Minerals in coal samples are mainly quartz, kaolinite, montmorillonite, pyrite, and gypsum, along with trace albite, barite, chlorite, and Fe-oxide, while those in coalified trunk samples include melanterite, pyrite, and gypsum, with traces of chlorite and magnesiocopiapite. Germanium, As, W, Sb, Hg, Be, and Cs are enriched in coal samples, and these elements are also enriched in the coalified trunks and roof glutenite. The elevated contents of Ge, As, W, Sb, and Hg were almost exclusively derived from the influx of hydrothermal fluids as evidenced by the presence of pyrite veins and chamosite as well as enhanced elemental associations of Ge-W and As-Sb-Hg in the studied lignite samples. The coalified trunks in the study area should be taken into consideration due to the high contents of hazardous elements that cause potential environmental impacts during mining waste disposal and land reclamation. | Versión del editor: | https://doi.org/10.3390/min10010017 | URI: | http://hdl.handle.net/10261/198723 | DOI: | 10.3390/min10010017 |
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New Data and Evidence on the Mineralogy and Geochemistry of Wulantuga High-Ge Coal Deposit of Shengli Coalfield, Inner Mongolia, China.pdf | Artículo principal | 6,19 MB | Adobe PDF | Visualizar/Abrir |
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