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Browsing Геология России by Title
Now showing items 2455-2474 of 39195
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(2004)Time series of data on variations in the electric activity of four Nilotic species of weakly electric elephant-snout fish Gnathonemus leopoldianus and motion activity of two catfishes Hoplosternum thoracatum and two groups ...
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(2004)The variations in atmospheric radiocarbon (14C) concentration during the last 50 000 years can be attributed to changes in the 14C production rate (due to changes in solar activity, the geomagnetic field and/or interstellar ...
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(1997)Tsaregorodtsevite (N(CH3)4)(Si2(Si0.5Al0.5)O6)2 is a unique feldspathoid with a tetrame- thylammonium (TMA 1 ) organic cation in an ordered, sodalite-like framework of ortho- rhombic symmetry (I222) with a 5 8.984(3), b 5 ...
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(2000)Stable carbon isotope ratios in the organic fraction of surface sediments from the Laptev Sea shelf were analyzed in order to study the modern distribution pattern of terrestrial organic matter. The δ13Corg signature of ...
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(PANGAEA, 2000-01-29)Stable carbon isotope ratios in the organic fraction of surface sediments from the Laptev Sea shelf were analyzed in order to study the modern distribution pattern of terrestrial organic matter. The delta13Corg signature ...
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(2004)The site location and local geometry of trace amounts (299 ppm) of dysprosium in a natural melanite garnet from a carbonatitic rock have been studied by high-energy fluorescence-detected X-ray absorption fine-structure ...
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(2004)Two gravity cores (1.1 and 2.2 m long) of deep-water bottom sediments from Lake Khubsugul (Mongolia) were studied. The Holocene, biogenic silica and organic matter-rich part of the first core was subjected to AMS radiocarbon ...
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(2001)The transition from uniserial to multiserial forms in the evolution of the bryozoan order Cheilostomata resulted from the change from a proxipetal sequence of development of buds in zooids to a distopetal. Possible ...
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(1989)We consider a model of gradual heating of the lithosphere against a background of slight extension in order to analyze the character that its igneous activity might take. Analysis indicates that two different cases of ...
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(1986)Changes in uranium distribution during chemical weathering were investigated in three granitoid types from the New England district, New South Wales, Australia, over a range of samples from unweathered rock to profoundly ...
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(2002)The infrared spectra and electron paramagnetic resonance (EPR) of channel constituents in beryls synthesized hydrothermally in the presence of NH4Cl were investigated. Two forms of ammonium ion were observed to be incorporated ...
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(2000)The relicts of large meandering palaeochannels are found throughout the territory of the periglacial zone of the Last (Valdai=Weichselian) Glaciation on the Russian Plain. Channel widths of macromeanders can be 15 times ...
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(2004)Data apparently suggest that chaoite is a high-temperature phase that can occur in nature only under superhigh temperatures, which correspond to meteorite structures and lower mantle. However, this is inconsistent with the ...
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(2003)Structures of magma mixing from three different lava flows have been analyzed and the degree of mingling has been quantified by measuring the contact perimeter between magmas and the fractal dimension of structures. In ...
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(1999)Fluids circulate through the Earth’s crust perhaps down to depths as great as 5–15 km, based on oxygen isotope systematics of exhumed metamorphic terrains, geothermal fields, mesozonal batholithic rocks and analysis of ...
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(1991)
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(Springer, 2013)In this tutorial we describe the basic principles of the ion implantation technique and we demonstrate that emission Mössbauer spectroscopy is an extremely powerful technique to investigate the atomic and electronic ...
Now showing items 2455-2474 of 39195