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Browsing ELibrary by Title
Now showing items 12506-12525 of 21936
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(1996)New results of a comprehensive investigation are used to substantiate the stratigraphic position of marker beds in the Rybinsk reference section, and to analyze periodic changes in paleogeography during the middle-late ...
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(2001)The position of the middle-upper Oxfordian boundary in the East European platform (Boreal region) and in the Subboreal and Submediterranean biogeographic provinces is discussed. In order to ensure the boundary isochronism ...
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(2003)New data on the Devonian-Carboniferous stratigraphy in the western part of the Kokshaal-Tau Ridge elucidate geological history of the transitional area between the former Tarim continental shelf in the south and the Turkestan ...
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(1996)The Midian Stage is suggested to correspond to the Yabeina-Lepidolina Genozone, i.e., to the entire existence time of the index genera. The first occurrence level of Yabeina forms is in the Neoschwagerina margaritae Zone ...
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(2002)Kokchetav ‘lamproite’ occurs in the east end of Kokchetav massif and consists of phenocryst (mainly clinopyroxene) and matrix (mainly feldspar). The compositions of clinopyroxene, magnetite and biotite phenocryst were ...
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(2000)The mid-Miocene in West Siberia was marked by significant environmental changes related to development of the river system in response to the uplift of the mountainous framing structures. This resulted in formation of the ...
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(2004)The development of the mixed genetic scheme of the natural HC synthesis on the basis of the factual material from five petroliferous regions in Uzbekistan has shown that the proposed method may be applied to other petroliferous ...
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(2005)The equilibrium intracrystalline distribution of Mn and Mg between the M1 and M2 sites of a Mn-rich/Fe-free orthopyroxene (donpeacorite) was investigated by means of annealing experiments at temperatures between 980 and ...
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(2003)The concentrations of Rare Earth Elements (REE) and Redox Sensitive Elements (RSE) were measured in groundwaters along a transect of the forest-marsh interface of a surficial aquifer system in North Inlet, SC. The well ...
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(1999)The migration of the rotation axis in the Earth body was proved by astronomers at the end of the last century proceeding from the results of observing the latitude changes (LC). The observations of this process in time are ...
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(1998)The purpose of this project was to study the formation of a tectonomagnetic precursor during the formation of a strike-slip fault zone. The magnetic variation was supposed to have been associated with the interaction of ...
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(1996)A numerical 3-D model is developed to describe the natural heat-transfer processes occurring in the Okeanskiy hydrothermal reservoir of the hydrothermal system of Baranskiy Volcano. The model agrees well with the data on ...
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(2002)This paper considers new data on the geological structure of the mafic-ultramafic intrusions of the Monchegorsk ore district. It is established that some of them (Mts. Yagel'naya and Ospe) enclose horizons of altered ...
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(2001)A structural analysis of CaSO4 . 0.5H(2)O, a dehydration product of gypsum, has been carried out through the Rietveld method on X-ray powder diffraction data. A dehydrated powder of synthetic gypsum has been charged inside ...
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(1998)A comparative study of the morphology and real structure of microdiamonds from the metamorphic rocks and alluvial placer of the Kokchetav Massif and from the Udachnaya kimberlite pipe and West-Australian alluvial placers ...
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(2001)Push moraines (glaciotectonic ice-marginal moraines) have a restricted distribution at modern glacier margins and consequently are of potential value in reconstructing Pleistocene ice sheets, providing data both on former ...
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(2001)The lycopsid Viatcheslavia vorcutensis is regarded as a stratigraphically valuable index fossil for the Lower Ufimian deposits of Western Angaraland. The morphology of V. vorcutensis is considered. Sporophylls of the species ...
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(2003)The Morávka (Czech Republic) meteorite fall occurred on May 6, 2000, 11:52 UT, during the daytime. Six H5–6 ordinary chondrites with a total mass of 1.4 kg were recovered. The corresponding fireball was witnessed by thousands ...
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(2003)The properties and history of the parent meteoroid of the Morávka H5–6 ordinary chondrites have been studied by a combination of various methods. The pre-atmospheric mass of the meteoroid was computed from fireball radiation, ...
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(2003)Detailed analysis of the fragmentation of the Morávka meteoroid during the atmospheric entry is presented. The analysis is based on the measurement of trajectories and decelerations of fragments seen in a video and at the ...
Now showing items 12506-12525 of 21936