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Now showing items 101-120 of 144
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(1995)A numerical model which describes oxygen isotope exchange during burial and recrystallization of deep-sea carbonate is used to obtain information on how sea surface temperatures have varied in the past by correcting measured ...
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(1996)Several angular unconformities have been recognized in Cenozoic sections of the Kamchatka region located in the Pacific-Asia transition zone. They are of a regional scale and confined to certain levels: the Cretaceous-Paleogene ...
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(1996)Success in establishing high precision crystallization ages with the U/Pb zircon method is highly dependent on the ability to isolate or remove the effects of inherited xenocrystic components or secondary lead-loss, or the ...
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(2003)By the beginning of the 21st century, 1227 species and subspecies of marine and brackish-water bivalves, assigned to 225 genera and subgenera of 54 families, were described from the Cenozoic of the Russian Far East by ...
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(2003)Geochemical and isotopic data from Mesozoic lavas from the Jianguo, Niutoushan, Wulahada, and Guancaishan volcanic fields on the northern margin of the North China Craton provide evidence for secular lithospheric evolution ...
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(2003)During the summer of 1998 a two-ship experiment with the Russian nuclear icebreaker Arktika and RV Polarstern probed the central part of Alpha Ridge in the High Arctic. In total 320 km of multichannel seismic data were ...
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SHALLOW STRATIGRAPHIC DRILLING APPLIED IN HYDROCARBON EXPLORATION OF THE NORDKAPP BASIN, BARENTS SEA (2002)The Nordkapp Basin is a Late Palaeozoic rift basin characterised by numerous salt diapirs. The salt was deposited in the Late Carboniferous-Early Permian and has been remobilised several times. Upper Palaeozoic and Mesozoic ...
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(2001)The source potential and organic maturity of the shales alternating with the reservoir beds in the Lower Pliocene Productive Series - the major oil-bearing unit in the South Caspian Basin - are inadequate to have formed ...
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(2001)In the course of volcanic activity the rising magma interacts with the basement rocks. The resulting system of magma conduits, marked by dikes and subvolcanic bodies, tends to spread as volcanic events are repeated. The ...
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(1998)The large-scale geological mapping in the southeastern area of the East Sayan Mountains permitted the subdivision of the Upper Cenozoic volcanosedimentary sequence into three units: the Sorok (lower-middle Miocene, 24-12 ...
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(1997)Provenance changes of silicate sediment deposited during the Late Cenozoic (5–0 Ma) on the Alpha Ridge, central Arctic Ocean are determined from variations in strontium, lead, and neodymium isotope compositions. Whereas ...
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(1998)The western Koryak fold and thrust belt consists of a set of tectonostratigraphic terrances that contain units ranging from Lower Palaeozoic to Cenozoic. Three deformational events have been identified in the study area. ...
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(1990)The Mongolian-Siberian mountainous province distinguished by Florensov (1978) includes the Sayan-Baikal, the Altai-Sayan regions and East Mongolian high ranges, and those of Mongolian Altai, Goby Altai and Khangai. In the ...
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(2001)Characteristics are given of pre-Cenozoic and Cenozoic structural-material complexes of southeastern Kamchatka, and paleogeodynamic conditions of their formation are considered. A tectonic sketch map has been compiled of ...
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(1995)The past variations of the seawater 87Sr86Sr isotopic ratio are related to changes in the relative contribution of the mantle Sr input to the ocean and the Sr supply from continental weathering. Recently, it has been ...
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(1999)Detailed geological and geomorphological mapping of the transition zones from the Chuya depression to the surrounding mountains in the north (Kurai Range) and in the west (Chagan-Uzun block) allowed us to infer that both ...
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(2001)Paleogene and Neogene stratigraphic schemes of Sakhalin are characterized. The schemes comprise from 11 to 12 regional stages and up to 50 formations. A calendar of various geological events (tectonic, volcanic, sedimentation, ...
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(2001)This study uses information on composition, thermal state and petrological thickness to calculate the densities of different types of subcontinental lithospheric mantle (SCLM). Data from mantle-derived peridotite xenoliths ...
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(1999)Numerical modeling of the evolution of plume beneath continental lithosphere with drastic variations in thickness is performed. It is shown that plume beneath continental lithosphere behaved differently than that beneath ...
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(2000)Radiolarians are protozoans that have existed for more than 500 million years. Paleozoic radiolarians (dating from 550-250 million years ago) were represented by three orders, 16 families, and 76 genera. Eighty per cent ...
Now showing items 101-120 of 144