
Publication
MINERAGENY OF GRAPHITE OF THE IHALA FIELD (NORTH RUSSIA,KARELIA)
(STEF92 Technology, 2019-06-20, Alexander Y. Nikiforov)
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A complex geological history and several stages of graphite mineralization are characteristic for the perspective Ihal? deposit. Primary carbonaceous matter is associated with early Proterozoic sedimentary complexes. Polychronic metamorphism, intrusive magmatism (microcline and plagioclase granites), migmatization of rocks, and contact metasomatism (scarns) have influenced the current appearance of the ore strata. Graphite is represented mainly in flaky crystalline forms in mineral intergrowths with biotite, pyrrh...
Ecology and Environmental Protection2019
