Mineralogy and Geochemistry of the Lower Cretaceous Coals in the Junde Mine, Hegang Coalfield, Northeastern China

Yingchun Wei, Wenbo He, Guohong Qin, Anmin Wang and Daiyong Cao
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Yingchun Wei: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China
Wenbo He: College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
Guohong Qin: School of Geographic Sciences/Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang 050024, China
Anmin Wang: College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
Daiyong Cao: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China

Energies, 2022, vol. 15, issue 14, 1-21

Abstract: Hegang coalfield is one of the areas with abundant coal resources in Heilongjiang Province. Characteristics of minerals and geochemistry of No. 26 coal (lower Cretaceous coals) from Junde mine, Hegang coalfield, Heilongjiang province, China, were reported. The results showed that No. 26 coal of Junde mine is slightly enriched in Cs, Pb, and Zr compared with world coals. The minerals in No. 26 coal of Junde mine primarily include clay minerals and quartz, followed by calcite, siderite, pyrite, monazite, and zircon. The diagrams of Al 2 O 3 –TiO 2 , Zr/Sc–Th/Sc, Al 2 O 3 /TiO 2 –Sr/Y, and Al 2 O 3 /TiO 2 –La/Yb indicate that the enriched elements in No. 26 coal were mainly sourced from the Late Paleozoic meta-igneous rocks in Jiamusi block. The volcanic ash contribution to No. 26 coal seems very low. Sulfate sulfur indicating oxidation/evaporation gradually decreases during No. 26 coal formation.

Keywords: trace elements; minerals; source; volcanic; sedimentary environment (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: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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