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Browsing Геология России by Title
Now showing items 4221-4240 of 39124
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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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(2001)This work was aimed to study the bedding of Early Holocene sapropel and a thin (0.2-4 cm) layer of tephra enclosed in it at a distance of 5-8 to 13 cm above its bottom. The tephra consists of poorly rounded particles of ...
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(PANGAEA, 2006-09-18)
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(2001)The rodent assemblage from the Middle Members of the Chul’adyr Formation contains seven species that belong to six (sub)families. The dominant Cricetidae are represented by a new genus and species:Aktaumys dzhungaricus and ...
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(2004)The Aral Faunal Assemblage is rich in small mammals. Insectivores there include the hedgehogs Galerix sp., Exallerix efialtes Lopatin, Amphechinus akespensis Lopatin, A. microdus Lopatin, and Amphechinus sp.; the moles ...
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(Федеральное государственное бюджетное учреждение науки Институт земной коры Сибирского отделения Российской академии наук, 2017)
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(2002)During the Arenig-Llanvirn interval a series of radiations across all the major clades, established the Brachiopoda as a major component of the Palaeozoic benthos. Radiations on Baltica and Laurentia during the Arenig ...
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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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(1998)The new Paleocene stratigraphic scheme of western Kamchatka comprising two, Ulevenei and Chemurnaut groups divided into seven formation and members is discussed. Four horizons marked by marine fossils and four phytohorizons ...
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(2003)Attempts to understand early Paleogene climate using models have provided insights, but have consistently had difficulty explaining essential climatic features. A main limitation of those studies has been the lack of ...
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(2003)Our study in lithologically diverse lower Paleogene deposits of the former southern USSR and West Siberia resolves three sedimentary provinces: (i) Southern (Crimea-Caucasus and Central Asia), dominated by biogenic calcareous ...
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(2000)Subsidence of continental crust in fold belts is commonly interpreted as related to extension or elastic flexure of the lithosphere near convergent plate boundaries. In the Late Cambrian - Early Ordovician, relative extension ...
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(2004)This communication discusses the issue of the formation of Early Caledonian batholiths based on comparative analysis of their age and Nd-Isotope characteristics in thee Altai-Kuznetsk -Batenev segment dominated by collisions ...
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(2004)The leucocratic subalkaline granites found in the eastern margin of the Argun' terrane have an U-Pb age of 467-472 Ma and compose relatively small tectonic blocks among Silurian and Devonian terrigenous-carbonate deposits ...
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(1998)A number of terranes were present in the early Paleozoic ocean between Laurentia and Gondwana following rifting. The precise location of these microcontinents and island arcs is unclear. We present tectonic subsidence ...
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(2003)Conflicting paleogeographic reconstructions of the Ural–Mongol fold belt have been developed over the past decade; very few of them, however, have been based on paleomagnetic data, which still remain scarce. The Chingiz ...
Now showing items 4221-4240 of 39124