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Browsing ELibrary by Title
Now showing items 1207-1226 of 21253
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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 ...
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(2002)Raman studies of both anhydrous and hydrous α, β and γ phases of Mg2 SiO4 provide us with evidence that some hydrous phases are less compressible than their anhydrous counterparts. This is contrary to the generally accepted ...
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(2001)The issue concerning the state of adiabaticity of mantle plumes has been examined in a cartesian two-dimensional box with an aspect-ratio of six. We have investigated in the quasi steady-state regime high Rayleigh number ...
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(2001)Growth rings of Mesozoic fossil woods have often been used for paleoclimatological inferences. Most of the studies, however, rest upon uniformitarian deductions based on the observation of conifers from the present boreal ...
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(2002)To evaluate if a polymer is suitable for analog modeling, it is essential to know the rheological properties of the material. Polymers used in analog modeling exhibit a complex rheological behavior; only part of which has ...
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(2002)GPS measurement campaigns in the Mongolia-Baikal area show that: (1) the Baikal rift zone is currently opening at 4-5 mm yr-1 in a NW-SE direction and (2) the western part of the Amurian-north China block is moving eastward ...
Now showing items 1207-1226 of 21253