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Full-Text Articles in Physical Sciences and Mathematics

Distribution And Occurrence Of Uranium In Coal And Its Migration Behavior During The Coal Utilization, Wang Wenfeng, Wang Wenlong, Liu Shuangshuang, Bai Hongyang, Wang Yulong, Duan Piaopiao, Qin Kemin, Chen Yilin Feb 2021

Distribution And Occurrence Of Uranium In Coal And Its Migration Behavior During The Coal Utilization, Wang Wenfeng, Wang Wenlong, Liu Shuangshuang, Bai Hongyang, Wang Yulong, Duan Piaopiao, Qin Kemin, Chen Yilin

Coal Geology & Exploration

Coal and uranium resources are closely related in spatial disposition as well as mineralization, and the reasonable development, utilization and pollution control of them play an essential role in the sustainable development of our national economy and society. Based on a large number of literature research and the previous results of our research group, some conclusions were drawn with regard to the distribution and occurrence of uranium in coal `and its migration in the process of coal preparation, combustion and leaching:(1) The enrichment and mineralization of uranium in coal has reflected the evolution of coal-forming tectonics:The U-rich coal in Southwest …


Major Elements Geochemistry Of The Breiner Baiut Ore Deposit (Gutai Mountains, Eastern Carpathians), Dan Costin Mar 2012

Major Elements Geochemistry Of The Breiner Baiut Ore Deposit (Gutai Mountains, Eastern Carpathians), Dan Costin

Studia UBB Geologia

The Breiner Băiuţ epithermal vein – type deposit is basically a base metal ore body with important amounts of gold and silver. The frequency distribution pattern of the major elements (Au, Ag, Pb, Zn, Cu, S) is complex in many cases, but at some mining levels it is lognormal. The correlation coefficient "r" has been calculated for six pairs of major elements. The values are positive and indicate strong correlations between these elements. The average grades values for each major element at all levels have been used to highlight the vertical variation of chemistry of the mineralization. The ore body …