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Now showing items 15725-15744 of 39126
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(2002)Fast-flowing ice streams drain huge basins within modern ice sheets and are a mechanism for rapid iceberg production and mass loss. Some ice streams are known to be unstable, and to switch between fast flow and stagnation. ...
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(2002)The Tokur deposit explored to a depth of 400 m and distance of 3 km is well studied. The enclosing Middle-Upper Paleozoic(?) sandy-clay rocks forming the Chelogor anticline with a dome-shaped arch and of a latitudinal ...
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(Elsiver, 2015-12-01)The primary goal of this paper is to summarize all of the published data on the Tolbachik volcanic massif in order to provide a clear framework for the geochronologic, petrologic, geochemical and to a lesser extent the ...
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(2003)Early Ordovician (Late Arenig) limestones from the SW margin of Baltica (Scania–Bornholm) have multicomponent magnetic signatures, but high unblocking components predating folding, and the corresponding palaeomagnetic pole ...
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(2004)On a global scale, peridotitic garnet inclusions in diamonds from the subcratonic lithosphere indicate an evolution from strongly sinusoidal REEN, typical for harzburgitic garnets, to mildly sinusoidal or “normal” patterns ...
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(1998)Experimental data indicating increase of crystal-melt (fluid) partition coefficients in the range of microconcentrations of trace elements are reviewed and analyzed in detail. This concentration dependence of partition ...
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(PANGAEA, 2000-09-25)
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(2001)A comprehensive evaluation of the transport of U, Th, Ra, and Rn nuclides of the 238U- and 232Th-decay series in an unconfined sandy aquifer (Long Island, NY) was conducted. Groundwater data are compared with results of a ...
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(2000)Unit-cell parameters, optical properties, and chemical compositions have been measured for 103 samples in the tremolite-actinolite-ferro-actinolite series. The average values of the non-essential constituents are: TAl = ...
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(2003)Species of genera currently referred to Nileidae are reviewed, and those of Hemibarrandia, Lakaspis, Peraspis and Symphysurina are excluded from the family. Nileidae are united in having a distinctive form of the hypostome, ...
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(2004)The Monorakinae is a subfamily of the Pterygometopidae characterised by the fusion of L2 and L3 in the glabella. The resulting bicomposite lobe is expanded backwards to reach the occipital furrow, displacing L1 from contact ...
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(2000)First results on stratigraphy, archeology, and paleoecology in the Tsagan-Agui Cave (Mongolia) are discussed. The palynological analysis along with radiothermoluminescence and magnetostratigraphic dating allowed the ...
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(2004)The terrigenous Tunaicha Formation overlying dislocated Mesozoic basement was recently established at the base of Cenozoic deposits in southeastern Sakhalin (the Aniva and Dolinsk districts). The formation stratotype is ...
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(2001)The Turiy Massif, lying within the Kandalaksha Graben, and on the southern coast of the Kola Peninsula, contains carbonatites, phoscorites, melilitolites, ijolites and pyroxenites within one central and four surrounding ...
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(2003)The Turiy Massif, on the southern coast of the Kola Peninsula, consists of five intrusive complexes containing a variety of carbonatites, phoscorites, melilitolites, ijolites and pyroxenites. Petrographic and mineralogical ...
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(1984)For the comprehensive mapping of the deep structure of the earth's crust a determination of the general types of the crust based on its most essential structural parameters is attempted. Three parameters are considered as ...
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(2003)Coastal zone managers need to factor submarine groundwater discharge (SGD) in their integration. SGD provides a pathway for the transfer of freshwater, and its dissolved chemical burden, from the land to the coastal ocean. ...
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(2004)The dating results enable to determine for the first time the probable formation sequence for I- and A-type granitoids. The former were forming during the whole time of the massif evolution, in homodromic sequence: quartz ...
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(2003)The results of geochronological investigation confirm the assumption of the Early Proterozoic age of Fedorov rock mass. The estimated age (2006±3 mln years) of metaandesite protolytes of this series agrees with age estimates ...
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(2003)The Ganychalan block is a fragment of the Early-Middle Paleozoic Talovka-Main-Vaega oceanic plateau expressed in the present-day structure of the western Koryak Highland as a series of blocks extending along the ...
Now showing items 15725-15744 of 39126