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Геология России: Recent submissions
Now showing items 1501-1520 of 43490
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(2006)The Umkondo dolerites are present over a wide area in the Kalahari craton, southern Africa. Thirty-nine sampling sites in Botswana and South Africa yielded tightly grouped paleomagnetic directions due south with shallow ...
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(2006)We present the first P-T, deformation time, and kinematic constraints on the only known blueschist facies rocks (BS) present in the Zagros (Hajiabad area). The BS were underplated below the Sanandaj-Sirjan zone and crop ...
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(2006)The Serra da Cangalha crater structure in northeast Brazil, ~13 km in diameter, has long been widely considered to be a confirmed impact structure, based on reports of shatter cone findings. Only very limited field work ...
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(2006)Tiny metallic particles have been found in the sediments of the Trans-Atlantic Geotraverse (TAG) hydrothermal field, Mid-Atlantic Ridge (MAR). The metallic grains are almost pure Ni and have compositional and structural ...
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(2006)During the last 10 years, a network of about 30 GPS sites was measured in Djibouti, East Africa. Additional points were also measured in Yemen, Oman, Ethiopia, Iran, and on La Réunion island. Merged with data from the ...
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(2006)Two classes of natural solid media, glacial ice and salt domes, are under consideration as media in which to deploy instruments for detection of neutrinos with energy ≥1018 eV. Though insensitive to 1011 to 1016 eV neutrinos ...
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(2006)A new specimen of Toxodontidae, consisting of a partial mandibular ramus with three molars, is described from the Middle Member of the Urumaco Formation and compared with type and referred material from all four taxa ...
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(2006)The Kodiak Islands are located ~120 to 250 km from the Alaska-Aleutian Trench and are within the southern extent of the 1964 Prince William Sound (Mw = 9.2) earthquake rupture and aftershock zone. Here we report new campaign ...
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(2006)A combined geochronological and paleomagnetic study is reported from Miocene basalts from Halaqiaola and Paleocene to Eocene red beds from Fuyun at the southern Altai Mountains, northern Xinjiang. Three new 40Ar/39 Ar ages ...
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(2006)Stacking of approximately 1500 radial receiver functions recorded at about 80 broadband seismic stations deployed in southern Africa reveals systematic spatial variations in the ratio of crustal P and S wave velocities ...
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(2006)Teleseismic ground motion recordings of deep earthquakes often contain clear seismic wave reflections from the free surface above the source (pP, sP, sS), with isolated precursors (pMP, sMP, and sMS) produced by underside ...
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(2006)Theoretical and experimental study of shape of the Arai-Nagata diagrams for the natural remanent magnetization (NRM) consisting of two low- and high-temperature partial thermal remanent magnetization vectors directed at ...
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(2006)We developed a new technique CAPloc to retrieve full source parameters of small seismic events from regional seismograms, which include origin time, epicenter location, depth, focal mechanism, and moment magnitude. Despite ...
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(2006)We installed 5 broadband and 45 short-period temporary seismic stations, distributed partly as a dense, 100-km-long, N-S linear array and partly as a regional network, throughout the Menderes Massif of western Turkey in ...
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(2006)The rupture process at the near-front zone of a propagating crack, being strongly nonlinear and irreversible, a detailed Fourier analysis becomes complicated, often impractical. Meanwhile, a simplified approach, employing ...
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(2006)We investigate the effects of thermal diffusion on the evolution of mantle plumes by means of three-dimensional numerical modeling forward and backward in time. Mantle plumes are fed by a hot, low-viscous material from the ...
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(2006)On the basis of a detailed study of the ice microstructure of the European Project for Ice Coring in Antarctica (EPICA) ice core at Dome Concordia, Antarctica, we analyze the effect of impurities (solubles, and insolubles, ...
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(2006)A new genus and species of Proterotheriidae Megadolodinae, Bounodus enigmaticus, from the Upper Miocene Urumaco Formation of Venezuela, is described on the basis of a poorly preserved right maxillary fragment with brachydont ...
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(2006)Soil temperature is an important indicator of frozen ground status, driven at least partly by air temperature variability. In this study we apply singular spectrum analysis (SSA) to detect trends and oscillations in annual ...
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(2006)Low-frequency seismic events at volcanoes are modelled as the seismic wavefield from a magma-filled conduit embedded in a solid country rock using a finite difference method. The effects of varying the conduit length and ...
Now showing items 1501-1520 of 43490