Browsing by Author "Vergasova L.P."
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Browsing by Author "Vergasova L.P."
Now showing items 1-14 of 14
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Filatov S.K.; Vergasova L.P.; Gorskaya M.G.; Krivovichev S.V.; Burns P.C.; Ananiev V.V. (2001)Bradaczekite, NaCu4(ASO(4))(3), was discovered in a fumarole in the North Breach of the Great fissure Tolbachik eruption (GFTE) in 1975-1976, Kamchatka Peninsula, Russia. Bradaczekite forms allregates of dark blue plates ...
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Krivovichev S.V.; Vergasova L.P.; Starova G.L.; Filatov S.K.; Britvin S.N.; Roberts A.C.; Steele I.M. (2002)Burnsite, ideally KCdCu7O2(SeO3)(2)Cl-9, occurs in a fumarole in the North Breach of the great fissure Tolbachik volcano eruption (1975-1976), Kamchatka Peninsula, Russia. It occurs as dark red, anhedral, equidimensional ...
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Filatov S.K.; Krivovichev S.V.; Burns P.C.; Vergasova L.P. (2004)The crystal structure of filatovite, K[(Al,Zn)2(As,Si 2O8] (monoclinic, I2/c, a = 8.772(1), b = 13.370(2, c = 14.690(2) Å, β = 115.944(6)°, V = 1549.1(4) Å3) has been solved by direct methods and refined to R1 = 0.033 on ...
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Semenova T.F.; Rozhdestvenskaya I.V.; Filatov S.K.; Vergasova L.P. (1989)Ponomarevite is one of the principal minerals of Recent exhalation ore shows on the cones of the Great Tolbachik Fissure Eruption of 1975-76. Interpreting its crystal structure helps to identify the forms of transport of ...
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Vergasova L.P.; Ananiev V.V.; Krivovichev S.V.; Britvin S.N.; Burns P.C. (2004)Filatovite, ideally K((Al,Zn)2(As,Si)2O8), has been found in products of fumarolic activity on the second cinder cone of the North breach of the great fissure Tolbachik eruption (1975-76, Kamchatka peninsula, Russia). The ...
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Anan'yev V.V.; Vergasova L.P. (1987)Magnesioferrite is the magnesian end member of the large ferrispinel group with the general formula MeFe2O4. We detected magnesioferrite in olivine-anorthite nodules from a continuously differentiated lava flow of the Malyy ...
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Vergasova L.P.; Filatov S.K.; Semenova T.F.; Ananyev V.V. (1990)Leningradite is the product of fumarole activity in the Great Tolbachik Fissure Eruption. It occurs in relatively small amounts in fumarole incrustations, on the southwestern crest of the second slag cone of the Northern ...
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Vergasova L.P.; Starova G.L.; Filatov S.K.; Filosofova T.M.; Matusevich Zh.L.; Dunin-Barkovskaya V.V. (1996)The paper presents data on a new fumarolic mineral (aqueous Al-Ca chloride-sulfate) discovered on Tolbachik Volcano eruption in 1975-1976. The mineral has no analogs among natural and synthetic compounds. It was examined ...
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Vergasova L.P.; Starova G.L.; Serafimova E.K.; Filatov S.K.; Filosofova T.M.; Dunin-Barkovskii R.L. (2001)Occurrences of recent native gold deposition were discovered around fumarole vents in the craters of the Northern Group of new Tolbachik volcanoes that had been born in 1975-1976. The newly deposited minerals are vertically ...
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NEW DATA ON MALLARDITE (NA2SIF6) DEPOSITED AROUND FUMAROLES OF THE GREAT TOLBACHIK FISSURE ERUPTION Serafimova E.K.; Semenova T.F.; Vergasova L.P.; Filatov S.K.; Epifanova V.B.; Ananiev V.V. (1996)Samples of the material deposited around fumaroles were examined by X-ray diffraction on single crystals and polycrystalline aggregates and microprobe analysis. The material was found to contain a rare sodium silicofluoride, ...
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Vergasova L.P.; Krivovichev S.V.; Filatov S.К.; Britvin S.N.; Berns Р.К.; Ananyev V.V. (2006)Parageorgbokiite, p-Cu502(Se03)2Cl2, was found in the 2nd cinder cone of the great fissure Tolbachik eruption (Kamchatka peninsula, Russia). The mineral occurs in association with ralstonitc, tolbachitc, melanothallite, ...
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Vergasova L.P.; Karpov G.A.; Lupikina E.G.; Andreev V.I.; Nadezhnaya T.B. (1998)This paper presents the results of monitoring the post-eruptive phase of the January 2-3, 1996, subaqueous eruption in the Akademii Nauk caldera, Kamchatka. Minerals that were being newly deposited on the cooling erupted ...
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Krivovichev S.V.; Filatov S.K.; Burns P.C.; Vergasova L.P. (2006)The crystal structure of allochalcoselite, Cu+Cu2+5PbO2(SeO3)2Cl5, a new mineral species from the fumaroles of the Great Tolbachik fissure eruption, in the Kamchatka Peninsula, Russia, has been solved from single-crystal ...
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Vergasova L.P.; Filatov S.K.; Gorskaya M.G.; Molchanov A.A.; Krivovichev S.V.; Ananiev V.V. (2000)Urusovite, ideally Cu[AlAsO5], has been found in a fumarole in the North Breach of the great fissure Tolbachik eruption (1975-76, Kamchatka peninsula, Russia). It occurs as light-green plates up to 0.4 mm in maximal ...
Now showing items 1-14 of 14