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Browsing ELibrary by Title
Now showing items 1205-1224 of 21768
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(2001)The principal new feature in the Cenozoic evolution of the Northwest Pacific is based on the fact that two arc terranes of Upper Cretaceous–Paleogene age were incorporated in the Kamchatka orogen during the early Tertiary ...
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(2004)Tectonically active remnants of Neo-Tethys represented by Mediterranean and western Pacific marginal seas are characterized by rapidly propagating backarc extension episodes. These appear to be triggered by random subduction ...
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(2003)We evaluate anaerobic oxidation of methane (AOM) in the Black Sea water column by determining distributions of archaea-specific glyceryl dialkyl glyceryl tetraethers (GDGTs) and 13C isotopic compositions of their constituent ...
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(2004)The Black Sea and the Cariaco Basin are both large, euxinic marine basins in which methane concentrations are high and where anaerobic oxidation of methane (AOM) is an important part of the carbon cycle. AOM can be recognized ...
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(2001)Archaeocyaths are calcareous, conical, Cambrian fossils with a long history of phylogenetic uncertainty and changing interpretations. The history of phylogenetic interpretation of archaeocyaths reveals five distinct schools ...
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(2002)The morphology of the skull and postcranial skeleton of the primitive ruminant artiodactyl Archaeomeryx optatus Matthew et Granger, 1925 from the Middle Eocene Shara Murun Formation of the Ula Usu locality in Inner Mongolia ...
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(2003)На основании микроструктурных данных тычиночные соцветия из маастрихт-палеоценовых отложений Амурской области отнесены к новому монотипному роду Archaranthus gen. nov. (Platanaceae) с типовым видом A. krassilovii sp. nov. ...
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(2004)Eclogites of Archean (2720± 8 Ma) and Proterozoic (2416.1± 1.3 Ma) age were found in the Belomorian Mobile Belt of the Baltic Shield near the village of Gridino in Karelia. The unique Archean eclogites described in this ...
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(2002)Detailed geological, geochemical, and petrological data were obtained on Archean magmatic rocks sampled in the area of Lake Oster, which is the northwestern margin of the ancient Vodlozero domain with tectonically combined ...
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(2002)We used an ion microprobe (SHRIMP-RG) for U-Pb dating of individual zircons in high-grade metamorphic basements of the felsic Sredinny and mafic Ganal Massifs in Kamchatka. Thirty percent of zircons from paragneisses of ...
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(2002)Zircon megacrysts from the Mir kimberlite, Yakutia, contain inclusions of chromite, chrome diopside, magnesian olivine, Ni-rich monosulfide solid solution and phlogopite. The mineral chemistry of the inclusion suite suggests ...
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(2003)The Jormua ophiolite represents seafloor from an Early Proterozoic ocean to continent transition zone that mainly consisted of Archean subcontinental lithospheric mantle. These mantle rocks were exhumed as a result of ...
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(2004)The Altaids are an orogenic collage of Neoproterozoic–Paleozoic rocks located in the center of Eurasia. This collage consists of only three oroclinally bent Neoproterozoic–Early Paleozoic magmatic arcs (Kipchak, Tuva–Mongol, ...
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(1986)The orogenic ridges on continents and island arcs have a similar history of development and character of tectonic deformations. They also have much in common with the linear ridges. The arcuate shape of orogenic uplifts ...
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(2003)We test the possibility of using the pseudo-Thellier method as a means of determining absolute paleointensity. Thellier analysis of anhysteretic remanent magnetization (ARM) and pseudo-Thellier analysis of thermoremanent ...
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(2002)Profiles of crustal thickness across rifted continental margins are examined in an attempt to understand the key observations and controlling parameters. Crustal stretching factor profiles from rifted continental margins ...
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(2003)Drill cores through modern coral reefs commonly show a time lag in reef initiation followed by a phase of rapid accretion to sea level from submerged foundations - the so-called 'catch-up response'. But because of the ...
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(1987)A comparsion is made of the physical patterns identified in the experimental study of the dynamic properties of rocks in three different types of research: derivation of frequency plots in the analysis of regional seismicity, ...
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(2003)The existence of a primordial, undegassed lower mantle reservoir characterized by high concentration of 3He and high 3He/4He ratios is a cornerstone assumption in modern geochemistry. It has become standard practice to ...
Now showing items 1205-1224 of 21768