Mostra i principali dati dell'item
Chromium in the coal seams of the Chervonoarmiiskyi geological and industrial area of Donbas
| dc.contributor.author | Kozii, Ye. | |
| dc.date.accessioned | 2022-08-24T14:50:03Z | |
| dc.date.available | 2022-08-24T14:50:03Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | http://ir.nmu.org.ua/handle/123456789/161445 | |
| dc.description | The accumulation of chromium in the coal seams of the area is polygenic and polychronic. The main form of these elements is sorbed (on clay minerals and fusenized microcomponents). The distribution of the main part of 87% of the sampling population of chromium concentrations in the coal of the area is described by the lognormal law, with a mode in the range of 23-28 g / t. The entire sample size is characterized by an average value of 23±1, with a variance of 118, a standard deviation of 11, an asymmetry factor of 1.95±0.05 and an excess coefficient of 6.31±0.09. The average values of chromium content in the main working coal seams of the area are significantly lower than the maximum concentration limit in coal. The calculated sample mean values of chromium content can be used to correlate the main coal seams of the area. | uk_UA |
| dc.description.abstract | Chervonoarmiiskyi geological and industrial area is located on the monoclinic slope of the south-western wing of the Kalmius-Toretsk hollow. The object of research is the main coal seams of the Chervonoarmiiskyi geological and industrial area of Donbas. The purpose of research is to establish the regularities of chromium distribution in the coal of the main working seams of the Chervonoarmiiskyi geological and industrial area. | uk_UA |
| dc.language.iso | en | uk_UA |
| dc.publisher | "Widening Our Horizons": International Forum for Students and Young Researchers | uk_UA |
| dc.subject | coal seam, chromium, clusterization dendrogram, lognormal law | uk_UA |
| dc.title | Chromium in the coal seams of the Chervonoarmiiskyi geological and industrial area of Donbas | uk_UA |
| dc.type | Article | uk_UA |
