Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China
The coal-bearing sequences of the Late Permian in southwest China are enriched in critical elements Sc, V, Co, Ni, Cu, Zn, Nb, Ta, Zr and Hf. Ascertaining the conditions and basis for the enrichment of critical elements in this area is very important to support the critical metal demands of China. I...
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MDPI AG
2023-01-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/13/2/195 |
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| author | Langtao Liu Chao Jin Beibei Zhang Xiaogang Zhang Jie Su Ruixu Zhao Shuaipo Gao |
| author_facet | Langtao Liu Chao Jin Beibei Zhang Xiaogang Zhang Jie Su Ruixu Zhao Shuaipo Gao |
| author_sort | Langtao Liu |
| collection | DOAJ |
| description | The coal-bearing sequences of the Late Permian in southwest China are enriched in critical elements Sc, V, Co, Ni, Cu, Zn, Nb, Ta, Zr and Hf. Ascertaining the conditions and basis for the enrichment of critical elements in this area is very important to support the critical metal demands of China. In this study, we analyzed the concentrations of elemental compositions of coal samples collected from the Late Permian Guishan coalfield in the eastern Yunnan, China. The results show that the C4-Upper coal seam of the Feilongma mine and C5 + 10 coal seam of the Shipeng mine are indeed rich in critical elements. The average concentration coefficients (CC) of transition metal elements Sc, V, Co, Ni, Cu, and Zn are 3.23 and 2.93, respectively, in the two coal seams. The average CCs of high-field-strength elements Nb, Ta, Zr, and Hf and non-variable valence chalcophile elements Ga and In are 2.21 and 2.53, respectively, in the two coal seams. The C4-Upper coal seam of the Feilongma mine can be divided into two sections based on the different ash contents, and the CCs of the critical elements in the two sections are almost equal. The main minerals in the two coal seams are kaolinite, siderite, quartz, gypsum, rozenite and marcasite. Multiple indicators of provenance show that the enrichment of critical elements in the Guishan coalfield is controlled by clastic terrigenous material. The source area of the Guishan coalfield is Kangdian Oldland in the northwest, and the main clastic materials are related with high-Ti basalts from the Emeishan Large Igneous Province. |
| first_indexed | 2024-03-11T08:23:33Z |
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| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-11T08:23:33Z |
| publishDate | 2023-01-01 |
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| series | Minerals |
| spelling | doaj.art-ce99ce3da37f4545b4807b26c94ca92b2023-11-16T22:18:11ZengMDPI AGMinerals2075-163X2023-01-0113219510.3390/min13020195Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, ChinaLangtao Liu0Chao Jin1Beibei Zhang2Xiaogang Zhang3Jie Su4Ruixu Zhao5Shuaipo Gao6Key Laboratory of Resource Survey and Research of Hebei Province, Handan 056038, ChinaKey Laboratory of Resource Survey and Research of Hebei Province, Handan 056038, ChinaKey Laboratory of Resource Survey and Research of Hebei Province, Handan 056038, ChinaKey Laboratory of Resource Survey and Research of Hebei Province, Handan 056038, ChinaBureau of Natural Resources and Planning of Honghe Autonomous Prefecture, Honghe 661100, ChinaYunnan Honghe Qisheng Energy Group Limited Company, Honghe 652399, ChinaKey Laboratory of Resource Survey and Research of Hebei Province, Handan 056038, ChinaThe coal-bearing sequences of the Late Permian in southwest China are enriched in critical elements Sc, V, Co, Ni, Cu, Zn, Nb, Ta, Zr and Hf. Ascertaining the conditions and basis for the enrichment of critical elements in this area is very important to support the critical metal demands of China. In this study, we analyzed the concentrations of elemental compositions of coal samples collected from the Late Permian Guishan coalfield in the eastern Yunnan, China. The results show that the C4-Upper coal seam of the Feilongma mine and C5 + 10 coal seam of the Shipeng mine are indeed rich in critical elements. The average concentration coefficients (CC) of transition metal elements Sc, V, Co, Ni, Cu, and Zn are 3.23 and 2.93, respectively, in the two coal seams. The average CCs of high-field-strength elements Nb, Ta, Zr, and Hf and non-variable valence chalcophile elements Ga and In are 2.21 and 2.53, respectively, in the two coal seams. The C4-Upper coal seam of the Feilongma mine can be divided into two sections based on the different ash contents, and the CCs of the critical elements in the two sections are almost equal. The main minerals in the two coal seams are kaolinite, siderite, quartz, gypsum, rozenite and marcasite. Multiple indicators of provenance show that the enrichment of critical elements in the Guishan coalfield is controlled by clastic terrigenous material. The source area of the Guishan coalfield is Kangdian Oldland in the northwest, and the main clastic materials are related with high-Ti basalts from the Emeishan Large Igneous Province.https://www.mdpi.com/2075-163X/13/2/195eastern YunnanLate Permiancoal-bearing sequencegeochemistryanomaly |
| spellingShingle | Langtao Liu Chao Jin Beibei Zhang Xiaogang Zhang Jie Su Ruixu Zhao Shuaipo Gao Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China Minerals eastern Yunnan Late Permian coal-bearing sequence geochemistry anomaly |
| title | Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China |
| title_full | Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China |
| title_fullStr | Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China |
| title_full_unstemmed | Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China |
| title_short | Geochemical Anomalies of the Late Permian Coal in the Guishan Coalfield, Eastern Yunnan, China |
| title_sort | geochemical anomalies of the late permian coal in the guishan coalfield eastern yunnan china |
| topic | eastern Yunnan Late Permian coal-bearing sequence geochemistry anomaly |
| url | https://www.mdpi.com/2075-163X/13/2/195 |
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