TYPOMORPHISM OF PARAMAGNETIC IMPURITIES IN HALITES FROM THE ZONES OF BASIC-ROCK-EVAPORITE INTERACTION (SIBERIAN PLATFORM)
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dc.contributor.author | Istomin V.E. | |
dc.contributor.author | Mazurov M.P. | |
dc.contributor.author | Grishina S.N. | |
dc.date.accessioned | 2021-01-31T12:50:12Z | |
dc.date.available | 2021-01-31T12:50:12Z | |
dc.date.issued | 2000 | |
dc.identifier | https://elibrary.ru/item.asp?id=14997428 | |
dc.identifier.citation | Geologiya i geofizika, 2000, 41, 1, 126-134 | |
dc.identifier.issn | 0016-7886 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/24156 | |
dc.description.abstract | The EPR method was for the first time used for studying composition, form, and structural transformations of paramagnetic impurities in major generations of halite from the zones of basic-rock-evaporite interaction. The main paramagnetic impurities in natural halites are Mn2+ and Fe3+ and dispersed organic matter. Isomorphous incorporation of Mn2+ into the regular lattice of NaCl is rather limited and was found only in sedimentary halites. The main form of stabilization of Mn2+ in hydrothermal and contact-metasomatic generations of halite are carbonate microphases. Ions Fe3+ concentrate in various forms: clusters, microphases, and independent hydrogoethite and goethite phases. An increase in the degree of contact metamorphism of salts leads to an increase in the dimensionality of Fe3+ accumulations. Ferromagnetic oxides and sulfides are stable in high-temperature contact zones. The dispersed organic matter is also specific in the EPR spectra of halites with a varying degree of metamorphism. The revealed peculiarities of the modes of incorporation of paramagnetic impurities into the real halite structure are a new typomorphic feature suitable for separation and correlation of halite-bearing associations and interpretation of the dynamics of metasomatic mineral formation. | |
dc.title | TYPOMORPHISM OF PARAMAGNETIC IMPURITIES IN HALITES FROM THE ZONES OF BASIC-ROCK-EVAPORITE INTERACTION (SIBERIAN PLATFORM) | |
dc.type | Статья |
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