Zobrazeno 1 - 10
of 12
pro vyhledávání: '"A. D. Babansky"'
Autor:
M. L. Tolstykh, A. D. Babansky, M. D. Smirnova, M. M. Pevzner, V. A. Lebedev, Yu. O. Larionova, Yu. V. Kushcheva, A. V. Parfenov
Publikováno v:
Journal of Volcanology and Seismology. 17:119-133
Publikováno v:
Geochemistry International. 59:139-155
Melt inclusions were investigated in the minerals of dacite tephra of the largest Holocene eruption (7900 years) of Khangar volcano, Sredinny Range of Kamchatka. Melt compositions correspond to rhyolite (SiO2 = 70–77 wt %, Na2O+K2O = 6–7 wt %) wi
Autor:
A. D. Babansky, Yu. V. Kuscheva, M. L. Tolstykh, M. M. Pevzner, Vladimir A. Lebedev, Yu. A. Kostitsin, A. O. Volynets, Yu. V. Gol’tsman
Publikováno v:
Russian Geology and Geophysics. 61:700-714
—We report the chemical and isotopic compositions of volcanic rocks of the Akhtang and Kostina mountain massifs in the Sredinny Range, Kamchatka. The analyzed rocks are similar in composition to the earlier studied volcanics of the eastern flank of
Autor:
Vladimir A. Lebedev, M. L. Tolstykh, M. M. Pevzner, Yu. A. Kostitsin, A. D. Babansky, A. O. Volynets
Publikováno v:
Doklady Earth Sciences. 489:1413-1416
K-Ar isotopic age of the beginning of formation of Ichinsky (0,35 Ma) and Khangar (0,4 Ma) stratovolcanoes is established for the first time, as well as the age of the final stage of activity of the Lauchan Ridge (about 0,9 Ma) in the Sredinny Range
Autor:
Vladimir A. Lebedev, M. M. Pevzner, A. O. Volynets, M. L. Tolstykh, A. D. Babansky, Yu. V. Kuscheva
Publikováno v:
Doklady Earth Sciences. 490:1-3
A first set of K–Ar isotopic ages obtained, which allowed to estimate the age of the largest volcanoes of the Anaunsky Dol (3.2, 2.2 and 1.9 Ma) and eruptive centers of the post-caldera stage of Uksichan massif (1.2 and 0.8 Ma), located in the Sred
Publikováno v:
Геохимия. 64:237-262
This paper presents the results of a study of melt inclusions in plagioclase, amphibole and pyroxene from Ichinsky volcano’s tephras of different age. Two types of melts have been identified, distinguished by different concentrations of potassium (
Publikováno v:
Geochemistry International. 57:243-265
The paper reports data on glassy melt inclusions in minerals of tephra that was produced by the most significant eruptions of Ichinsky volcano, Kamchatka, and marked the major evolutionary stages of the volcanic center in the Pleistocene–Holocene.
Publikováno v:
Russian Geology and Geophysics. 59:1577-1591
Based on the geochemical characteristics of the Miocene–Quaternary volcanic rocks of the Sredinny Range of Kamchatka, we divide it into northern and southern provinces; the latter comprises the “eastern”, “western”, and “central” flanks
Publikováno v:
Journal of Volcanology and Seismology. 12:242-251
It is shown that Shiveluch, which consists of several volcanic edifices that stand in one area and in part overlie each other, is a long-lived volcanic massif with a complex structure. The available data on the morphology of the edifice, age, rock co
Autor:
Yu. A. Kostitsin, Yu. V. Kushcheva, M. L. Tolstykh, M. M. Pevzner, A. D. Babansky, Vladimir A. Lebedev, D. V. Kovalenko, A. O. Volynets
Publikováno v:
Doklady Earth Sciences. 475:858-862
For the first time, the age of the beginning of the volcanic activity within Sredinny metamorphic Massif is determined (7–6 Ma). We suppose that this event was caused by the collision of Kamchatka with the Kronotsk arc that started about 7 Ma from