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Browsing Геология России by Title
Now showing items 6080-6099 of 39126
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(PANGAEA, 2012-06-06)
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(PANGAEA, 2005-07-08)
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(2001)High-Mg volcanics of the komatiite and tholeiite types are widespread in the greenstone belts of Karelia. Their geochemistry and isotopic features were examined using representative successions of the Late Archean ...
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(2015)Abstract We present new major and trace element, high-precision Sr–Nd–Pb (double spike), and O-isotope data for the whole range of rocks from the Holocene Tolbachik volcanic field in the Central Kamchatka Depression (CKD). ...
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(2003)The distribution of Li and Sn was examined in rocks (>300 and ∼150 samples, respectively) from the metasomatized upper mantle: ultramafic and mafic xenoliths in alkaline basaltoids from the area. The rocks were found to ...
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(2001)Petrogeochemical data are presented on the rock associations of the Onot greenstone belt (GB) located in the southeastern Sayan Region. The infracrustal plagiogneisses and plagiogranitoids of the Onot GB are analogous to ...
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(2001)The Streltsovka caldera located in Transbaikalia near the Chinese–Mongolian border represents the largest uranium field associated with volcanics in the world. All the rocks, volcanics and underlying granites, are deeply ...
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(1990)The sequence investigated of the Siberian Trap at Noril'sk, USSR, consists of at least 45 flows that have been divided into six lava suites. The lower three suites consist of alkalic to subalkalic basalts (the Ivakinsky ...
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(PANGAEA, 2012-09-14)
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(2002)I have determined the composition via instrumental neutron activation analysis of a bulk pristine sample of the Tagish Lake carbonaceous chondrite fall, along with bulk samples of the Cl chondrite Orgueil and of several ...
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(1988)To ascertain the geochemical specificity of the upper mantle under the south rim of the Aldan shield and the Stanovoy zone, we studied xenoliths from the Tokinskiy Stanovik lava field. The latter is underlain at the surface ...
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(2001)The potentially toxic elements Hg and As are found at high concentrations in surface/near-surface sediments from Arctic ocean cores collected from the Voronin Trough, Kara Sea, during 1965. The levels reach 2045 ppb for ...
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(2003)In this paper, we discuss the sequential variation in the modes of occurrence of titanium in the process of magnesian skarn and calc-skarn formation as a manifestation of prograde metasomatism of carbonate rocks at contacts ...
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(2004)The geochemistry of rocks of the Sumsunur granitoid batholith in the Eastern Sayan was presented. The rocks of batholith were characterized by, on the one hand, by geochemical affinity with the host amphibolite crust rocks ...
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(2005)It has been shown that the capillary state of aqueous solutions in the unsaturated zone (UZ) modifies chemical equilibria due to the decreasing capillary pressure of the whole system (isobaric scenario) or of the aqueous ...
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(PANGAEA, 2018-05-29)
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(PANGAEA, 2018-05-29)
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(PANGAEA, 2018-05-29)
Now showing items 6080-6099 of 39126