Results 11 to 20 of about 74 (46)

CONCENTRIC-ZONAL AGGREGATE OF REE MINERALS IN FELDSPAR PEGMATITE OF THE VISHNEVYE MOUNTAINS, SOUTH URALS [PDF]

open access: yesМинералогия, 2019
A concentric-zonal texture of mineral aggregate observed in alkali pegmatite of the Vishnevye Mountains was formed as a result of melt-fluid crystallization in a closed system.
V.A. Popov
doaj   +2 more sources

ZIRCONOLITE OF ALKALINE PEGMATITES OF THE VISHNEVYE MOUNTAINS: THE FIRST FINDINGS IN THE SOUTH URALS [PDF]

open access: yesМинералогия, 2018
Zirconolite, a complex oxide with an idealized formula (Ca,REE)Zr(Ti,Fe,Nb)2O7 , is an accessory mineral of Nb ores from alkali pegmatites and carbonatites of the Vishnevogorsk alkaline complex (South Urals, Russia).
V.A. Popov   +3 more
doaj   +2 more sources

FIRST FINDS OF BADDELEYITE IN ALKALINE COMPLEX OF THE VISHNEVYE MOUNTAINS, SOUTH URALS [PDF]

open access: yesМинералогия, 2018
Baddeleyite ZrO2 is identified in abundant assemblages with zircon in alkali pegmatites of the Vishnevogorsky complex. The mineral contains Hf, Nb, and Ca in chemical composition. Its occurrence in form of accessory mineral is predicted for various rocks
V.A. Popov, I.A. Blinov
doaj   +2 more sources

TO THE ONTOGENESIS OF AESCHYNITE IN FELDSPAR VEIN NO. 31 OF THE VISHNEVYE GORY, SOUTH URALS [PDF]

open access: yesМинералогия, 2022
Small grains of accessory aeschynite in feldspar vein no. 31 of Vishnevye Mountains (South Urals) co-crystallize with late growth zones of feldspar crystals, as well as with ilmenite, titanomagnetite, muscovite, zircon, monazite, thorite, rutile ...
V.A. Popov, I.A. Blinov, V.I. Popova
doaj   +2 more sources

Carbonatite shows on the quartz deposits “Vein 175” (Ufalei block, the Southern Urals)

open access: yesЛитосфера, 2017
The subject of the study are manifestations of carbonatites in the quartz deposit “Vein № 175” - the largest deposit of granular quartz of Ufalei block in the Southern Urals.
Larisa Y. Kabanova   +3 more
doaj   +3 more sources

ZONATION OF PHLOGOPITE OF CARBONATITE-PEGMATITES OF THE BULDYM DEPOSIT OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) [PDF]

open access: yesМинералогия, 2017
In a plate 19 cm in size from the columnar crystal of phlogopite Buldym deposit in the Southern Urals, we studied the composition of alternating greenish-brown, yellowish-brown and darker brown areas by electron-probe microanalysis.
V.I. Popova   +3 more
doaj   +1 more source

ZEOLITES IN PEGMATITES AND LATE VEINLETS OF THE VISHNEVOGORSKY ALKALINE-CARBONATITE COMPLEX (SOUTH URALS) [PDF]

open access: yesМинералогия, 2020
The paper summarizes the data on mineral assemblages, crystal morphology and chemical composition of zeolites (analcime, natrolite, gonnardite, paranatrolite, scolecite, mesolite, garroniteNa, phillipsite-K, harmotome, chabazite-Ca, heulandite-Ca ...
V.I. Popova   +6 more
doaj   +1 more source

APATITE OF ALKALINE ROCKS OF THE VISHNEVOGORSKY COMPLEX, SOUTH URALS [PDF]

open access: yesМинералогия, 2019
Apatite Ca5(PO4)3(F,Cl,OH) is a widespread accessory mineral of alkaline rocks of the Vishnevye Mountains in the Urals. There are small bodies of carbonatites and micaceous rocks, where apatite is a rock-forming mineral.
V.A. Popov
doaj   +1 more source

ВОЗРАСТ И ГЕОДИНАМИЧЕСКИЕ ОБСТАНОВКИ ФОРМИРОВАНИЯ МИАСКИТ-ПЕГМАТИТОВ, КАРБОНАТИТОВ И Nb-Zr МИНЕРАЛИЗАЦИИ ИЛЬМЕНО-ВИШНЕВОГОРСКОГО ЩЕЛОЧНОГО КОМПЛЕКСА, ЮЖНЫЙ УРАЛ (U-Pb И Rb-Sr ИЗОТОПНЫЕ ДАННЫЕ)

open access: yes, 2022
The Ilmeno-Vishnevogorsky miaskite-phenite-carbonatite complex (IVС), located in the Urals folded region, is a representative of "linear type" carbonatite complexes, with which Nb-Zr deposits are associated.
В. А. Булатов   +7 more
core   +2 more sources

Single-crystal FTIR and X-ray study of vishnevite, ideally [Na6(SO4)][Na2 (H2O)2](Si6Al6 O24)

open access: yes, 2007
This paper reports a single-crystal FTIR spectroscopic study of vishnevite, ideally [Na6(SO4)][Na2 (H2O)2](Si6Al6 O24), a member of the cancrinite group of feldspathoids.
M. Piccinini   +4 more
core   +2 more sources

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