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Browsing ELibrary by Title
Now showing items 12531-12550 of 21879
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(2003)Mantle fluids sampled by mid-ocean ridge basalts and by diamonds are depleted in the heavy isotope of nitrogen, 15N, by about 3–5 parts per mil relative to atmosphere, suggesting a common nitrogen end-member since at least ...
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(2003)This is the final report on the nomenclature of eudialyte-group minerals by the Eudialyte Nomenclature Subcommittee established by the Commission on New Minerals and Mineral Names of the International Mineralogical ...
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(1995)We have investigated the state of adiabaticity in mantle flows by using a Lagrangian tracer technique to map out the thermal state of parcels in both downwelling and upwelling flows in mantle flush events. The model, based ...
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(1996)In order to study the characteristics of P1, the dominant ''normal planetary'' noble gas component in chondrites, we prepared HF/HCl residues for fourteen chondrites from seven chondrite classes. We chose relatively ...
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(2004)The global climate changings at the end of Pleistocene led to extinction of the typical representatives of Mammoth fauna–mammoth, woolly rhinoceros, wild horse, bison, muskox, cave lion, etc.–on the huge territories of ...
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(1997)The microbarographs installed at distances of 45 and 113 km from Shiveluch Volcano recorded acoustic signals during the powerful explosive eruption of November 12, 1964. The signals were produced by the formation of a ...
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(2000)The structure of Fe(OH0.86,OD0.14)2 was refined by applying the Rietveld technique to neutronpowder diffraction data collected at 300, 150, and 10 K. The nuclear structure, of the CdI2 type (P3–m1) and isostructural ...
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(1992)The Caledonides of Ny Friesland comprise the type Hecla Hoek sequence of Svalbard, a succession of late Proterozoic to Ordovician strata greater than 18 km thick. Three supergroups constitute the sequence: the Stubendorffbreen ...
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(1994)The mineral grossite (CaAl4O7; Ca-dialuminate, also termed CA2) is a rare phase in terrestrial and extraterrestrial rocks. In meteorites, grossite was found in Ca,Al-rich inclusions (CAIs) from Allende (CV3), Vigarano ...
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(1996)The paper summarizes the results of research into the development of exogenous geological processes in the cryolithozone carried out at Moscow State University. The main types of modern geocryological processes are identified, ...
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(1996)A temperature study (4°C, room temperature, 60°C and 90°C) employing a bacterial in vitro model (Southam and Beveridge, 1994) revealed a role for S and P in octahedral An formation. Ionic Au immobilized by Bacillus subtilis ...
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(1997)The author's data on the migration and recurrence of great Pacific earthquakes, derived at the global scale of the Pacific belt and at the local scale of the northern Kurils-Kamchatka region, indicate that the southern ...
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(1998)The OH contents of pyrope garnets synthesised at 1000°C and pressures between 2 and 13 GPa have been measured by infrared spectroscopy. We find that under the same conditions of pressure, temperature, aH2O and aSiO2 the ...
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(2002)The Okhotsk-Sea plate is interpreted as an old volcanic oceanic plateau bounded by right-lateral strike-slip faults in the east and west, a Middle Cretaceous subduction zone in the north, and by a zone of ongoing subduction ...
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(2004)Adakites are andesidacite–rhyolite rocks of trondhjemitic affinity characterized by high Na 2 O, Al 2 O 3 , Ba, and Sr contents and high Sr/Y and (La/Yb) n ratios [1, 2]. Adakitic rocks are only formed in a subduction ...
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(1992)The Bakeyevo biota, the oldest biota discovered in the folded area of the Urals, is described for the first time, and the important stratigraphic consequences of this discovery are examined. The discovery of the Bakeyevo ...
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(2004)It is established that in Transangara distinctly specified is the most early Neoproterozoic collision event in the range of 865-880 mln years ago. According to the determined geologic position, chemical composition and ...
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(2001)There is first publication about found the archean ophiolite accotiacion in Irin-Gora, Karelia, Baltic shield, Russia
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(2001)Ages in the range 3.6-4.0 Ga (billion years) have been reported for the oldest, continental, granitoid orthogneisses, whose magmatic precursors were probably formed by partial melting or differentiation from a mafic, ...
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(2003)The earliest type of tissue differentiation in carbonaceous thallus has been discovered in the uniquely preserved material from the Vendian of the White Sea area (Russia). A new genus, Archyfasma gen. nov., with its type ...
Now showing items 12531-12550 of 21879