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Browsing Геология России by Title
Now showing items 7985-8004 of 39126
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(2004)Quantitative microanalysis of entire silicate and sulfide melt inclusions by Excimer Laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICPMS) has been applied to extrusive and shallow intrusive rocks from the ...
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(2004)Laser-ablation microanalysis of a large suite of silicate and sulfide melt inclusions from the deeply eroded, Cu-Au-mineralizing Farallon Negro Volcanic Complex (NW Argentina) shows that most phenocrysts in a given rock ...
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LASER-INDUCED FLUORESCENCE MICROSCOPY-APPLICATION TO POSSIBLE HIGH RANK AND CARBONATE SOURCE ROCKS (2002)It is difficult to obtain useful fluorescence information from coals and source rocks of high maturity by means of conventional fluorescence microscopy due to the low fluorescence intensity of the macerals. A laser-induced ...
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(1999)Natural and synthetic scheelite are investigated by time-resolved laser-induced luminescence to detect and ascribe various luminescence lines to a variety of REE. The selectivity of detection is possible by using different ...
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(2002)This work examines the luminescence of zircon studied by laser-induced time-resolved methods. This method allows the differentiation between luminescence centers of similar emission wavelengths, but different decay times. ...
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(2002)Multi-proxy data and radiocarbon dates from several key cores from the Black Sea and Marmara Sea document a complex paleoceanographic history for the last ∼30 000 yr. The Marmara Sea was isolated from both the Black Sea ...
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(2001)Study of glacial and marine sequences along the outer coast of Chukotka Peninsula, Bering Strait, is the basis for major revisions of the regional stratigraphy. The Val’katlen Suite at its type section at the mouth of the ...
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(2002)Paleobotanical and palynological data on the same units seemingly lead to a controversial interpretation of the late Albian flora and vegetation. For instance, an upper part of the upper Albian Hysteroceras orbignyi Zone ...
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(1998)The first study on taxonomic composition of radiolarians from the upper Albian deposits of Crimea showed that they represent 48 taxa, among which 15 genera and 29 species are classed with spumellarians, and 14 genera and ...
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(2001)This paper presents a considerably revised biostratigraphy for Upper Albian through Coniacian pelagic limestone and shale sequences in the northeastern Caucasus region based primarily on planktic foraminiferal distributions. ...
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(1988)Because commercial fluorite mineralization in the southern Tien Shan was deposited in late Hercynian and early Alpine metallogenic epochs, the numerous finds here of fluorite occurrences dating from late Alpine time were ...
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(PANGAEA, 1999-10-22)On the Taymyr Peninsula and Severnaya Zemlya Archipelago, Central Siberia, a joint German/Russian multidisciplinary research project focuses on the Late Quaternary history of climate and environment. Within the scope of ...
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(2004)Geological mapping showed that the northeastern part of the Belomorian mobile belt consists of metamorphic rocks (amphibolites and schists) and plagiogneisses resting on a granite basement. The close spatial association ...
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(2004)Late Archean rocks of the North Karelian system of greenstone belts and overlying Early Proterozoic sequence of the Kukasozero structure provide insights into the entire evolution of Early Precambrian tectonogenesis and ...
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(2004)This paper presents new data on the age and composition of granitoids from the Charnokitovyǐ and Drevnestanovoy complexes of the Dambukinskiǐ block in the eastern Dzhugdzhur-Stanovoy fold belt. Based on the results of U-Pb ...
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(2004)The presented geochronologic and geochemical data provide full evidence for the following conclusions. 1) The obtained age estimate (2719±14 ma) corresponds to crystallization period for the rocks of the layered series of ...
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(2002)Two types of organogenic structures of the Central Uralian Melekhov Horizon (Gzhelian Stage, Upper Carboniferous) contain essentially different schwagerinid assemblages. Owing to the diversity of its surface biotopes, the ...
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(2003)Active deformation in the South Caspian region demonstrates the enormous variation in kinematics and structural style generated where a rigid basement block lies within a collision zone. Rigid basement to the South Caspian ...
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(2003)Geometry and Late Cenozoic kinematics of regional and local active faults in the northern and western sides of the Hovsgol basin have been studied through remote sensing and geomorphological and structural field measurements. ...
Now showing items 7985-8004 of 39126