Analysis of spatial distribution of chemical elements of apatite-stafelite ore

Abstract

Relevance. An important and promising source of raw materials for the production of phosphate concentrate are apatite-shafelite ores. The criterion for evaluating apatite-staffelite ores is, first of all, the content of useful components – P2O5 and Fetot. Issues of granulometric and mineral composition of apatite-staffelite ores, composition of recoverable minerals – staffelite, apatite, magnetite, their influence on technological indicators, and ultimately – issues of geological and technological typification of ores. Thus, the urgent issue of geological and technological mapping of the field is brewing. Aim: to analyze the spatial distribution of chemical elements, chemical analysis and morphotectonic analysis within the Northern section of the Kovdorskoye field. Methods. Statistical processing of chemical analysis results, chemical analysis of samples, inverse distance weighted method, morphostructural analysis. Results. To analyze the spatial patterns of the distribution of chemical elements, based on the data of chemical analysis of samples from wells, samples were compiled, including indicators of the values of the contents of elements either in the horizontal plane (at different horizons) or in the vertical plane (in exploration profiles). As a result, the authors compiled 6 samples characterizing: horizon 290 m, horizon 270 m, horizon 250 m, as well as exploration profiles 16, 17, 18. In the research work, the analysis of the spatial distribution of chemical elements within the Northern section of the Kovdorskoye field was carried out. During the study of the analysis, the characteristic features of the distribution of P2O5 were revealed, which are expressed in the confinement of this mineralization to a combination of tectonic disturbance of the study area and to a carbonatite stockwork.