Regularities of volcanosedimentary iron accumulation in the Early Precambrian |
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| Authors: | O G Lazur |
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| Institution: | (1) Geological Institute, Russian Academy of Sciences, Pyzhevskii per. 7, Moscow, 119017, Russia |
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| Abstract: | Issue of the correlation between ferruginous-siliceous accumulation and volcanism at early stages of the continental lithosphere evolution is considered. Magnetite quartzites of the Early Precambrian volcanosedimentary greenstone and intensely metamorphosed complexes are subdivided into volcanosedimentary and sedimentary genetic types. Major features of the evolution of ferruginous-siliceous accumulation in the Early Precambrian are elucidated and a model of the evolution of volcanogenic iron accumulation is proposed. Principles of the prognosis of magnetite mineralization in the Early Precambrian metamorphic, primary volcanosedimentary, and greenstone complexes are elaborated. |
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