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Browsing ELibrary by Title
Now showing items 12651-12670 of 21879
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(2004)The intercentrum of the atlas of Karenites has a dual nature. The manus retains rudimentary praepollex and postminimus. The hind limb is long, the fibula curves sigmoidally, the calcaneus has a well-developed tuber calcanei, ...
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(1995)The reactive continuum model (Boudreau and Ruddick, 1991), the power model (Janssen, 1984; Middelburg, 1989), and the q-theory (Bosatta and Agren, 1991a) have been used to describe decomposition of organic matter; the ...
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(1998)After removing annual variability, power spectral analyses of local atmospheric temperature from hundreds of stations and ice core records have been carried out from time scales of 10−2 to 106 yr. A clear sequence of ...
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(1999)The precision of Tl isotopic measurements by thermal ionization mass spectrometry (TIMS) is severely limited by the fact that Tl possesses only two naturally occurring isotopes, such that there is no invariant isotope ratio ...
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(2001)Recent nonlinear dynamical systems (NDS) techniques have been developed to analyse chaotic time series data. According to NDS theory, the correlation dimension and predictable time scale are evaluated from a single observed ...
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(1985)During the large explosions of the Bezymianny (1956), Shiveluch (1964) and Mount St. Helens (1980) volcanoes, 4.8·1012, 3.0·1012 and 8.2·1012 kg of resurgent and magmatic material were ejected respectively. The eruptions ...
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(2001)On tilled fields runoff directions may be affected by tillage induced oriented roughness, causing runoff to flow along tillage lines instead of topographic direction. That this has an important effect on runoff and erosion ...
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(2004)The calculation of the rheological structure in the deep seismic profile FENNIA in the central Fennoscandian Shield allows in addition the modelling of the present-day stress field and state of deformation. Seismic and ...
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(2003)The first President's appeal on the occasion of the creation of the International Paleoentomological Society (Krakow, Poland, September 6, 2001).
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(2003)Metagranites in the NKFMASH system require external hydration during prograde high-pressure metamorphism in order to equilibrate to ambient HP conditions by producing more siliceous muscovite. Any lack of external fluid ...
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(1994)The stability relations of lawsonite, CaAl2Si2O7(OH)2H2O, have been investigated at pressures of 6 to 14 GPa and temperatures of 740 to ˜1150°C in a multi-anvil apparatus. Experiments used the bulk composition lawsonite+H2O ...
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(2002)To date, the evaluation of the temperature (T) and pressure (P) of formation of natural diamond has generally relied on thermobarometry of rare polymineralic inclusions containing appropriate assemblages of minerals. The ...
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(1997)The mineralogical and chemical characteristics of the fine-grained matrix (=<3 μm) of the unique primitive carbonaceous chondrite acfer 094 have been investigated in detail by scanning electron microscopy (sem) and analytical ...
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(2000)We made an extensive compilation of noble gas data obtained from MORB, oceanic island basalts (OIB) and diamonds. On the basis of this data base, we discuss the primordial noble gases in the Earth and its implications on ...
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(2003)Based on geological, petrochemical, and geochronological data, the postcollisional nature of granitoids of the Primorsky complex in western Cisbaikalia is substantiated. The age of the Primorsky complex granites determined ...
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(2003)Power laws are known to be associated with dynamic systems residing near the critical point in the state space of the system. However, both models, that of phase transitions reached by the tuning parameter (for example, ...
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(2004)The paper considers regularities in concentration and dispersion of ore-forming and petrogenic elements in some natural geochemical systems. The structural-chemical basis of silicate ore-forming systems and its influence ...
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(1992)Gold mineralisation is the result of the paragenetic interaction of magmatic (mafic and salic), regionally metamorphic and metasomatic formations. The substratum is the source of the ore material, and the paragenesis is ...
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(2003)One of the key problems in reconstructing the geodynamic environments of the Pechenga-Varzuga belt is the timing and genesis of granitoids widespread along the southern border of the belt, mostly in the southwestern framing ...
Now showing items 12651-12670 of 21879