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Now showing items 61-80 of 172
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(2004)Radiocarbon-dated pollen, rhizopod, chironomid and total organic carbon records from Nikolay Lake (73°20’N, 124°12’E), complemented by a pollen records from nearby peat sequence, provide the detailed environmental ...
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(1996)On the basis of new factual material, the history of the formation of the Prebaikalia vegetation cover is considered. For this purpose data of palynological analysis for nine sections of lacustrine-palustrine deposits were ...
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(2002)The primary aim of this paper is to describe and discuss the palaeoclimatic significance of mid-to late-Holocene fields of raised-beach ridges at Matalaniemi and sea-ice-pushed boulders at Kutovaya Bay on the Kola Peninsula. ...
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(2004)The mineral and chemical compositions and physical properties of diatomaceous clayey–siliceous sediments in the Sea of Okhotsk are studied. Absolute masses of silica accumulation are determined. Their compositional model ...
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(1998)Based on the study of the mineralogy, chemistry, and particle size of late Pleistocene tephra from the marine and alluvial terraces of southern and central Kunashir I., five tephra groups were identified: four of these ...
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(2004)Pollen, stomata, and macrofossils in a lake core with a basal date of 9700 14C BP were used to reconstruct past changes in climate and vegetation in the arctic tree line area, northeast European Russia. A palsa peat profile ...
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(2004)Ostracods secrete their valve calcite within a few hours or days, therefore, its isotopic composition records ambient environmental conditions of only a short time span. Hydrographic changes between the calcification of ...
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(2002)The pollen stratigraphy of an ombrotrophic patterned ridge-hollow raised bog in the Salym-Yugan Mire Area in boreal West Siberia (60°109N, 72°509E) covers the entire Holocene period. Pollen data from three parallel peat ...
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(2002)Examples of Holocene-historical volcanism in the territory of Armenia and adjacent areas of Eastern Anatolia and Western Iran are discussed. Holocene-historical activity is proved for the volcanoes of Tskhouk–Karckar, ...
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(2001)During an early phase of the Last Ice Age (Weichselian, Valdaian), about 90 000 yr ago, an ice sheet formed over the shallow Barents and Kara seas. The ice front advanced on to mainland Russia and blocked the north-flowing ...
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(2003)A series of simple hydraulic calculations has been performed to examine some of the questions associated with the reconnection of the Black Sea to the Mediterranean through the Turkish Strait System during the Holocene. ...
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(2001)We report the identification of a novel long-chain ketone in Holocene Black Sea sediments. Based on chemical properties, and chromatographic and mass spectrometric characteristics, this compound has been identified as a ...
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(2001)High-resolution analyses of rock magnetic and sedimentological parameters were conducted on an 11m long sediment core from Lama Lake, Northern Siberia, which encompasses the late Pleistocene and the Holocene epochs. The ...
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(2004)Paleo-reconstruction of one new-Caspian transgression stage was carried out on the base of analysis of oxygen and carbon stable isotopes' content as well as of some metals in bivalve mollusk shells. Dynamics of δ18C values ...
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(2001)Isotope and geochemical techniques are the primary way in which the residence time, recharge conditions and subsequent evolution of palaeowaters can be determined. Isotopic species and noble gas concentrations are used as ...
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(2001)July mean temperature and annual precipipation during the last 9900 cal. yr BP were recon structed from pollen assemblages preserved in a sediment core from northern Finland. Quantitative recon structions were performed ...
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(1999)Medvezhiya caldera is a polygenetic volcanic structure including the Medvezhii, Srednii, Kudryavyi, and Menshoi Brat volcanoes and several flood basalt vents. The discovery of a new volcano, Tukap, with a rhenium ore ...
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(1998)Shiveluch Volcano, located in the Central Kamchatka Depression, has experienced multiple flank failures during its lifetime, most recently in 1964. The overlapping deposits of at least 13 large Holocene debris avalanches ...
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(1998)The chronology, dynamics, and parameters of seven large eruptions of Avacha Volcano were reconstructed for its IAv andesitic period 7250-370014C years B.P., which began after a >2000-year period of relative quiescence. ...
Now showing items 61-80 of 172