Browsing Статьи, тезисы докладов by Title
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Browsing Статьи, тезисы докладов by Title
Now showing items 40-59 of 2494
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(2020)The description of rocks is one of the most time-consuming tasks in the everyday work of a geologist, especially when very accurate description is required. We here present a method that reduces the time needed ...
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(2010)n this study, we present Lu–Hf isotope systematics and Lu and Hf abundances for komatiites from the lowermost part of the 2.8 Ga Kostomuksha greenstone belt in the Baltic Shield and compare these, as well as available Sm–Nd ...
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(2007)An explosive eruption occurred at the summit ofBezymianny volcano (Kamchatka Peninsula, Russia) on 11January 2005 which was initially detected from seismicobservations by the Kamchatka Volcanic Eruption Re-sponse Team ...
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(2014)We report detrital zircon ages for Precambrian and early Palaeozoic metasediments from the Tianshan orogen in Kyrgyzstan, an important component of the Central Asian Orogenic Belt and compare these with published ages from ...
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(2018)The brachiopods of the orders Lingulida, Craniida, Orthida, Pentamerida, Rhynchonellida, Chonetida, Spiriferida, Spiriferinida, and Athyridida from the Middle–Upper Devonian and Lower Carboniferous of the Nakhchivan ...
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(2009)By crushing olivine and pyroxene phenocrysts in volcanic rocks from Kyushu Island, Japan, we determined 3He/4He of 3–7 Ra and 40Ar/36Ar of up to 1750. These values are lower than those of MORB. 4He/40Ar⁎ (down to 0.1) is ...
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(2007)We compare eruptive dynamics, effects anddeposits of the Bezymianny 1956 (BZ), Mount St Helens1980 (MSH), and Soufrière Hills volcano, Montserrat 1997(SHV) eruptions, the key events of which includedpowerful directed blasts. ...
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(2013)We report tephrochronological and geochemical data on early Holocene activity from Plosky volcanic massif in the Kliuchevskoi volcanic group, Kamchatka Peninsula. Explosive activity of this volcano lasted for ~1.5 kyr, ...
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(2019)Palaeoproterozoic amphibole-biotite orthogneisses with a protolith age of ~ 1840 Ma and Neoproterozoic muscovite-chlorite orthogneisses with an estimated protolith age of ~ 790 Ma have been identified in the structure of ...
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(2003)The behavior of the melting curves of anhydrous silicates in the presence of water is examined in T-C-w and P-T diagrams. It is demonstrated that the effect of water on the melting temperatures of minerals can be explained ...
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(2015)The Sikhote-Alin Range of the Russian Far East is an important accretionary orogen of the Western Pacific Orogenic Belt. In order to study the formation and tectonic evolution of the orogen, we performed zircon U–Pb dating, ...
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(2009)The Altaids is one of the largest accretionary orogenic collages in the world with the highest rate of Phanerozoic continental growth and significantmetallogenic importance. It is widely accepted that subduction-related ...
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ERUPTIVE HISTORY OF KARYMSKY VOLCANO, KAMCHATKA, USSR, BASED ON TEPHRA STRATIGRAPHY AND 14C DATING (1991)Eruptions of the active Karymsky stratovolcano began about 5300 (6100 C-14) B.P. from within a pre-existing caldera which formed 7700 C-14 B.P. As indicated by 32 C-14 determinations on buried soils and charcoal, the volcano ...
Now showing items 40-59 of 2494