Pubblicazioni su Zapiski RMO - volume 147 - part 1

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Marco E. Ciriotti
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Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
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Pubblicazioni su Zapiski RMO - volume 147 - part 1

Messaggio da Marco E. Ciriotti » mar 26 giu, 2018 19:03

Referenze:

▪ Vasiliev, E.A., Klepikov, I.V., Lukyanova, L.I. (2018): Comparison of diamonds from the Rassolninskaya depression and recent alluvium placers of the Krasnovishersky district (Ural Region). Zapiski RMO, 147, 55-67.

▪ Plasil, J., Kasatkin, A.V., Skoda, R., Stepanov, S.Yu. (2018): Parapierrotite from the Vorontsovskoe gold deposit, Northem Urals, Russia: crystal structure and chemical composition. Zapiski RMO, 147, 68-77.

▪ Sandimirova, E.I., Sidorov, E.G., Chubarov, V.M. (2018): Arsenides of nickel and cobalt in mafic-ultramafic massifs of Kamchatka. Zapiski RMO, 147, 78-84.

▪ Alekseev, V.I., Sukhanova, K.G., Marin, Yu.B. (2018): Niobium minerals – indicators of genetic link between tin-ore zwitters and lithium-fluoric gratinites in Verkhneurmiysky massif (the Amur River Region). Zapiski RMO, 147, 85-99.

▪ Yurichev, A.N., Rozenbush, A.A., Kulkov, A.S. (2018): Uvarovite from chromitites of the Agardag ultramafic massif (Tyva Republic): chemistry and genesis. Zapiski RMO, 147, 100-111.

▪ Chukanov, N.V., Panikorovskii, T.L., Chervonnyi, A.D. (2018): About relationship between crystal-chemical characteristics of vesuvianite-group minerals with their IR spectra. Zapiski RMO, 147, 112-124.
Marco E. Ciriotti

«Things are interesting only in so far as they relate themselves to other things»

Avatar utente
Marco E. Ciriotti
Messaggi: 25545
Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
Contatta:

Re: Pubblicazioni su Zapiski RMO - volume 147 - part 1

Messaggio da Marco E. Ciriotti » ven 05 apr, 2019 11:22

Referenza:
▪ Alekseev, V.I., Sukhanova, K.G., Marin, Yu.B. (2018): Niobium minerals – indicators of genetic link between tin-ore zwitters and lithium-fluoric gratinites in Verkhneurmiysky massif (the Amur River Region). Geology of Ore Deposits, 60, 698-707.

Abstract:
Niobium minerals in zwitter and lithium–fluorine granite of the Verkhneurmiysky granitic massif in the Amur River region—fergusonite-(Y), euxenite-(Y), samarskite-(Yb), aeschynite, Nb-bearing wolframite—have been described and the similarity of their species composition established. The same-named and crystal-chemically allied minerals from zwitter and granite are characterized by similar complexes of such trace elements as W, REE, Mn, Fe, Pb, U, and Sc. A genetic link between Sn-bearing zwitter and Li–F granite is stated. Compositional varieties of niobium minerals in granite and zwitter reflect a change in the physicochemical conditions of mineral formation, when the magmatic stage is followed by a pneumatolytic–hydrothermal process. The postmagmatic evolution of niobium minerals is characterized by increased concentrations of Y, Pb, U, Fe and decreased concentrations of W, Ta, REE, Ti, Sc, and Th. The mineral occurrences in the western sector of the Verkhneurmiysky Cu–W–Sn cluster are appraised as promising for Nb, Y, and REE. Fergusonite, samarskite, euxenite, and Nb-bearing wolframite are indicators of rare metal mineralization.
Marco E. Ciriotti

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