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Now showing items 1-20 of 243
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(1996)Continental records of Plio-Pleistocene climatic fluctuations are often confined to fragmentary, localized basins, and not easily dated. One exception is the Confidence Hills of Southern Death Valley. In this study, we ...
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(1998)The paper considers the first results of investigation of the cores obtained by drilling in Lake Baikal on the top of the underwater Akademichesky Ridge in 1996. Two boreholes, one to a depth of 300 m, and the other to a ...
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(2001)Two boreholes, BDP-96-1 (200 m thick) and BDP-96-2 (100 m thick), drilled at the top of the underwater Akademichesky Ridge at 53°41′48″N and 108°21′06″, gave two parallel cores which were dated paleomagnetically. The ...
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(2001)The potential of in situ cosmogenic 14C (in situ 14C) for surficial process studies is widely recognized, yet a reliable means of isolating it has proved difficult to develop. We present here a new method for extracting ...
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(1995)Dynamical instabilities in the glaciation and deglaciation of the ice sheets can be triggered by pulsations of the rate of change of the orbital and rotational parameters. The purpose of this paper is to demonstrate that ...
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(1996)The abundance and isotopic composition of total and pyrite sulphur have been determined in a core in the central Black Sea. Pyrite varies in concentration from roughly 2 wt% in the sapropel (Unit 2), to 0.8 wt% in the ...
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(2006)Paleomagnetic and rock magnetic investigations were carried out on four gravity cores recovered from the western continental rise of the Antarctic Peninsula during the SEDANO II cruise of RV OGS-Explora. The studied cores, ...
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(2006)Sediment cores retrieved in the Benguela coastal upwelling system off Namibia show very distinct enrichments of solid phase barium at the sulfate/methane transition (SMT). These barium peaks represent diagenetic barite ...
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(2006)The tectonic activity in the Alborz mountain range, northern Iran, is due both to the northward convergence of central Iran toward Eurasia, and to the northwestward motion of the South Caspian Basin with respect to Eurasia ...
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ACTIVE VOLCANOES OF KAMCHATKA: SPATIAL AND TEMPORAL DYNAMICS OF ERUPTIVE INTENSITY AND PRODUCTIVITY (2000)The total volumes of volcanic rocks and average annual productivities of active volcanoes were calculated for all volcanic zones of Kamchatka for the mid-Pleistocene, Late Pleistocene, and Holocene epochs. Average values ...
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(2006)New geochemical data for Pleistocene magmatic rocks from the Surigao peninsula, eastern Mindanao, the Philippines, demonstrate typical adakitic traits, including elevation of Sr/Y and depletion of the heavy rare earth ...
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(2004)The SedFlux model is modified to more realistically simulate the distributions of seafloor geotechnical parameters during the growth of a seismically active continental margin. Alternative methods are provided for the ...
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AGES OF CALDERAS, LARGE EXPLOSIVE CRATERS AND ACTIVE VOLCANOES IN THE KURIL-KAMCHATKA REGION, RUSSIA (1995)The ages of most of calderas, large explosive craters and active volcanoes in the Kuril-Kamchatka region have been determined by extensive geological, geomorphological, tephrochronological and isotopic geochronological ...
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ALKENONE PALEOTHERMOMETRY: BIOLOGICAL LESSONS FROM MARINE SEDIMENT RECORDS OFF WESTERN SOUTH AMERICA (2006)An empirical global core-top calibration that relates the alkenone unsaturation index U37K? to mean annual SST (maSST) is statistically the same as that defined for a subarctic Pacific strain of Emiliania huxleyi (CCMP1742) ...
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(2001)Long continuous lacustrine sequences constitute on the continent a precious tool for coupling the long term continental environmental changes with deep sea and ice core records, using the 'count from the top' method. ...
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(2002)Although shelf-edge deltas are well-imaged seismic features of Holocene and Pleistocene shelf margins, documented outcrop analogues of these important sand-prone reservoirs are rare. The facies and stratigraphic architecture ...
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(1997)About 10,000 years ago, at the Pleistocene-Holocene border, some important events occurred: the glaciation stopped abruptly; the sea level elevated, and quick (for 20-50 years) climatic and ecological changes took place, ...
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(2005)Geomorphologic, marine geological, and paleoclimatic evidence, along with modeling results, indicate that, during the Late Pleistocene, the Sea of Okhotsk was glaciated by a "back-arc" marine ice-sheet, which was a continuous ...
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(1989)The main task of paleoclimatology is the definition of the trend of climatic change and the identification of the events that occurred in the Earth's history. The Pleistocene, especially the late Pleistocene, was an epoch ...
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(2001)The difference between the climates of the Bering Land Bridge and Asiatic (western) Beringia 18–20 ka ago is discussed. The climatic reconstructions of the Bering Land Bridge and western Beringia are based upon two methods. ...
Now showing items 1-20 of 243