THE NATURE OF RARE EARTH ELEMENTS ACCUMULATION IN CLAY LAYERS AND COALS OF THE SHUBARKOL DEPOSIT
Коpobayeva A.N. Blyalova G.G. Bakyt A. Portnov V.S. Amangeldikyzy A.
2022National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#2022Issue 2117 - 130 pp.
This paper presents data of mineralogical-geochemical studies of clay layers of the Western section of the Shubarkol deposit, which can shed light to the origin of these specific formations. A comprehensive analysis of possible sources of accumulation of the clay layers matter has been carried out, and the main patterns of distribution and conditions for the REE accumulation in coals and coal-bearing rocks have been studied. The analysis of the carried out studies indicates the existence of a number of independent sources and various mechanisms of REE accumulation in the sediments of the Shubarkol deposit. The REE accumulation in coal seams and clay layers at the deposit is caused by the peculiarities of the composition of the feeding area of the ancient peat accumulation basin, manifestation of epigenetic processes, and the peculiarities of the hydrogeochemistry of the region. In this regard, the increased contents of REE and impurity elements in coals are confined to contacts with enclosing rocks and clay layers, as well as to zones of hypergene oxidation. Forms of presence of valuable elements in coals are various. Most of the impurity elements are associated with mineral phases. The enrichment of coals with a wide range of impurity elements is expressed in a variety of micromineral forms including specific ones. At the same time, individual micromineral phases tend to contacts with clay layers and zones of hypergene oxidation.
clay layers , coal , coal seams , formation conditions , geochemistry , rare earth elements , Shubarkol , tonsteins
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Department of Geology and Exploration of Mineral Resources, Karaganda Technical University, Karaganda, Kazakhstan
Karaganda Technical University, Master in Science of Engineering, specialty Geology and Exploration of Mineral Resources, Karaganda Technical University, Karaganda, Kazakhstan
Department of Geology and Exploration of Mineral Deposits at, Karaganda Technical University, Karaganda, 100027, Kazakhstan
Department of Geology and Exploration of Mineral Resources
Karaganda Technical University
Department of Geology and Exploration of Mineral Deposits at
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