Enrichment of Li–Ga–Zr–Hf and Se–Mo–Cr–V–As–Pb Assemblages in the No. 11 Superhigh Organic Sulfur Coal from the Sangshuping Coal Mine, Weibei Coalfield, Shaanxi, North China

Jing Li, Peng Wu, Guanghua Yang, Lei Pan, Xinguo Zhuang, Xavier Querol, Natalia Moreno, Baoqing Li and Yunfei Shangguan
Additional contact information
Jing Li: Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Lumo Road 388, Wuhan 430074, China
Peng Wu: Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Lumo Road 388, Wuhan 430074, China
Guanghua Yang: Xi’an Institute of Geology and Mineral Exploration, Western Duling Road 56, Xi’an 710100, China
Lei Pan: Xi’an Institute of Geology and Mineral Exploration, Western Duling Road 56, Xi’an 710100, China
Xinguo Zhuang: Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Lumo Road 388, Wuhan 430074, China
Xavier Querol: Institute of Environmental Assessment and Water Research, CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain
Natalia Moreno: Institute of Environmental Assessment and Water Research, CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain
Baoqing Li: Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Lumo Road 388, Wuhan 430074, China
Yunfei Shangguan: Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Lumo Road 388, Wuhan 430074, China

Energies, 2020, vol. 13, issue 24, 1-19

Abstract: Superhigh organic sulfur(SHOS) coals have currently attracted great attention due to their typical depositional environments and formation history as well as their great negative impact on the ecosystem. This study investigated the geochemistry of the No. 11coalof the Late Carboniferous Taiyuan Formation from the Sangshuping coalmine, Hancheng miningarea, Weibei coalfield, Shaanxi, North China. The No. 11 coal is a high-sulfur coal with a large proportion of organic sulfur content (3.7 to 5.5%, avg. 4.4%) and belongs to typical SHOS coal. The high sulfur content in the Sangshuping coal mine has been mainly caused by the combined influences of seawater and hydrothermal fluids. The SHOS in No. 11 coal was formed in the Fe-poor and S-rich high-marine influenced occlusive environment. During the late coalification stage, a high proportion of pyritic sulfur was formed due to sufficient Fe supply from the Fe–S-rich epigenetic hydrothermal fluids. The No. 11 SHOS coal is enriched in Li–Ga–Zr–Hf and Se–Mo–Cr–V–As–Pb element assemblages. The sediment provenance of the Sangshuping coal mine is predominantly felsic–intermediate rocks from both the Yinshan and Qinling Oldland. However, the elevated concentrations of critical elements (Li, Ga, Zr, and Hf) in the No. 11 coal are primarily inherited from the Yinshan Oldland. The enrichment of the Se–Mo–Cr–V–As–Pb assemblage in No. 11 coal can be ascribed to the influence of both seawater and epigenetic hydrothermal activity.

Keywords: superhigh organic sulfur coal; coal geochemistry; critical elements; Late Carboniferous; Sangshuping coal mine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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