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Now showing items 21-40 of 247
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(1999)The carbon fluxes, stocks and isotopic budgets of the land biosphere at mid-Holocene (6 ka BP) and last glacial maximum (21 ka BP) times are reconstructed with the CARbon Assimilation In the Biosphere (CARAIB) model forced ...
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(1992)Box cores recovered during Leg 4 of the 1988 R/V “Knorr” Black Sea Oceanographic Expedition from deep-water regions of the basin were dominated by coccolith-rich, microlaminated (Unit 1) sediment and muddy, gray turbidite ...
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(1988)Geologic, geomorphic and tephrochronologic data and the results of C14 dating indicate that in Kamchatka and the Kurile Islands in the last 40,000 to 45,000 years there were at least 50 very powerful explosive eruptions ...
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(2001)The benthic foraminiferal record of two sediment cores at 900 and 2500 m water depth in the marginal Arctic Ocean reflects fluctuations in paleoproductivity, ice sheet extent, and Atlantic water inflow. Highest paleoproductivity ...
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(2004)Closely spaced sequences of accelerator mass spectrometer (AMS) 14C dates of peat deposits display century-scale wiggles which can be fitted to the radiocarbon calibration curve. By wiggle-matching such sequences, ...
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(2000)Stable carbon isotope ratios in the organic fraction of surface sediments from the Laptev Sea shelf were analyzed in order to study the modern distribution pattern of terrestrial organic matter. The δ13Corg signature of ...
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(2004)Two gravity cores (1.1 and 2.2 m long) of deep-water bottom sediments from Lake Khubsugul (Mongolia) were studied. The Holocene, biogenic silica and organic matter-rich part of the first core was subjected to AMS radiocarbon ...
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(2000)The relicts of large meandering palaeochannels are found throughout the territory of the periglacial zone of the Last (Valdai=Weichselian) Glaciation on the Russian Plain. Channel widths of macromeanders can be 15 times ...
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(2003)The bottom sediments of Lake Baikal were studied, with the emphasis placed upon the conditions of sedimentation in the Holocene and material composition of sediments. On the basis of study of spatial distribution of sediments ...
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(1998)A tephrochronological study and radiocarbon dating of soil-pyroclastic sequences were carried out along a profile of Shiveluch Volcano-Chernyi Yar-Bering Islands. Ashes deposited by the largest Shiveluch eruptions (for the ...
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(1999)Nineteen Holocene eruptive centers (cinder cones with lava flows and maars) were located and described in the Avacha horst and anticline zone west of the East Kamchatka volcanic area. A tephrochronological study and the ...
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(2004)The deep-water sediments of Lake Baikal retain an uninterrupted record of the climatic and environmental variations of continental Asia in the Late Cenozoic (Baikal drilling project). The paleoclimatic record is based on ...
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(1997)The climate of the Holocene is not well suited to be the baseline for the climate of the planet. It is an interglacial, a state typical of only 10% of the past few million years. It is a time of relative sea-level stability ...
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(1984)We have presented new data, connected with the use of oxygen isotope analysis. It was noted above that the age of epigenetic veins in the upper part of the cross section near the village of Seyakha are dated 9.3-8.7 thousand ...
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(2001)One of the most pronounced environmental changes during the Holocene Baltic Sea history was the transition from the freshwater Ancylus Lake to the brackish water Litorina Sea. The establishment of brackish conditions during ...
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(2001)By comparing the compositions of glacial and interglacial intervals of the Late Pliocene, Pleistocene, and Holocene from different parts of Lake Baikal, we demonstrate the use of the Baikal clay mineral associations as ...
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(1998)In the Pleistocene-Holocene section of the Baikal deep-water sediments shales are periodically enriched with the siliceous shells of diatomic algae up to nearly pure diatomite. As the terrigenous shale-silty material is ...
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(1989)The recent study of submarine volcanoes of the Kurile island arc on cruises of the R/V Vulkanolog revealed the distribution in space of all Holocene volcanoes here and, therefore, allowed them to be analyzed in connection ...
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DYNAMICS OF SEA MAMMAL AND BIRD POPULATIONS OF THE BERING SEA REGION OVER THE LAST SEVERAL MILLENNIA (2004)The secular dynamics of sea mammal and bird populations of the Bering Sea region over the last several millennia are reconstructed. We identify osteological material from the cultural layers of ancient sea-mammal hunter ...
Now showing items 21-40 of 247