Newly formed minerals of the Fe–P–S system in Kolyma fulgurite
| Autor: | A. A. Plyashkevich, A. V. Alshevsky, T. V. Subbotnikova, Pavel S Minyuk |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Mineral
010504 meteorology & atmospheric sciences Phosphorus Geochemistry chemistry.chemical_element Mineralogy Fulgurite engineering.material 010502 geochemistry & geophysics 01 natural sciences Troilite Cohenite chemistry.chemical_compound chemistry Earth and Planetary Sciences (miscellaneous) engineering General Earth and Planetary Sciences Alluvium Moissanite Oil shale Geology 0105 earth and related environmental sciences |
| Zdroj: | Doklady Earth Sciences. 467:380-383 |
| ISSN: | 1531-8354 1028-334X |
| DOI: | 10.1134/s1028334x16040139 |
| Popis: | Newly obtained data from microscopic, geochemical, and thermomagnetic studies of the large Kolyma fulgurite are presented here: the fulgurite was formed in the Holocene as a result of lightning affected black shale alluvium. The composition is very close to that of glass formed from a melt. The glass has elevated concentrations of Y, Zr, Nb, and REEs. The newly formed mineral phases have been identified: those are Al–Si glass, α-cristobalite, moissanite, native iron with a phosphorus admixture, nickel-less shreibersite (?), troilite, and possibly cohenite. The formation of these minerals is related to the melt fractionation and the effects of element concentration and segregation of ore components under conditions of the rock melting caused by the effect of high-energy plasma (lightning strike). |
| Databáze: | OpenAIRE |
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