Open AccessMethodological aspects of regional metallogenic analysis
Author(s) -
KONTAR Efim Semenovich
Publication year - 2021
Publication title -
izvestiâ uralʹskogo gosudarstvennogo gornogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2500-2414
pISSN - 2307-2091
DOI - 10.21440/2307-2091-2021-2-106-113
Subject(s) - geology , zoning , sedimentary rock , geochemistry , metamorphic rock , metallogeny , lithology , igneous rock , regional geology , massif , earth science , paleontology , tectonics , metamorphic petrology , pyrite , sphalerite , political science , law
Relevance and purpose of the work are due to the need to formulate the conceptual base and essence that determine the methodology of regional metallogenic analysis. Results. The fundamental provisions that make up the methodological and conceptual-semantic basis of the regional metallogenic analysis have been determined and concretized. The conceptual basis of regional metallogenic analysis is the provision that the ore (deposit) is included as a natural component in certain structural-material associations (or complexes), i.e., in certain formations of igneous, sedimentary and metamorphic rocks. They are objectively existing and actually mapped geological bodies, which are expressed both in the form of stratified (series, formations, strata, packs, horizons) and intrusive (massifs) formations. On their basis, structural-formation (structuralmetallogenic) zoning is carried out. An important feature of magmatic, sedimentary and ore formations is their recurrence in the geological history of mobile belts, which confirms the concept of the conservatism of metallogenic processes in the geological history of the Earth. At the same time, along with repetitive ones, there are magmatic, sedimentary and ore formations formed in the geological history of the Earth only once. Lateral and vertical rows of rock and ore paragenetic associations are characterized. Examples of Caledonian and Hercynian lateral ore-formation series of the Urals are given. The main provisions of the quantitative assessment of the predicted resources of the predicted types of minerals are formulated. Conclusions. The regional metallogenic analysis consists of the following components: petro-lithoformational analysis, structural-formational zoning which is adequate to structural-metallogenic zoning, paragenetic analysis of mineral associations and geological-industrial typification of various-scale occurrences of a mineral, and quantitative assessment of expected mineralization predicted resources.