Results 1 to 10 of about 125 (100)
Доклады Академии наук, 2019 Detailed studies have shown that changing the forms of eudialyte release (and the time of its crystallization) is a new geochemical criterion for the ore - bearing of alkaline magmas for rare metal (eudialyte ores). A new ore-bearing principle of alkaline magmas has been formulated: a prerequisite for the formation of an ore deposit is the early ...
L. N. Kogarko
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Assessing natural attenuation at field scale by stochastic reactive transport modelling [PDF]
, 2010 A combined integral measuring and modelling approach is presented and applied, to assess natural attenuation at the former gasworks site in Stuttgart, ´Testfeld Süd´. The approach copes with subsurface heterogeneity by two different means.
Peter, Anita
core
Известия Томского политехнического университета [Известия ТПУ]. Т. 324, № 1 : Науки о Земле [PDF]
, 2014 core
Moscow University Soil Science Bulletin, 2020 The composition of water-soluble macro- and microelements and anions has been studied in soils formed within a monolithic soil–geochemical catena. It has been shown that the carbon and nitrogen contents regularly increase from eluvial to accumulative landscapes parallel to their hydromorphism.
L. G. Bogatyrev +6 more
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Geochemistry: Exploration, Environment, Analysis, 2023 We applied the backward elimination method as a criterion-based iterative stepwise method to estimate the concentration of Au from the variables Ag, Cu, Pb and Zn. We optimized the quadratic polynomial model on various boreholes and trenches.
F. Darabi-Golestan
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Doklady Earth Sciences, 2019 Detailed studies have shown that a change in the eudialyte occurrence forms (and the moment of its crystallization) is a new geochemical criterion for rare metal ore content in alkalic magmas (eudialyte ores). A new principle of the presence of ores in alkalic magmas has been formulated: a prerequisite for the formation of an ore deposit is early ...
L. N. Kogarko
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Geology of Ore Deposits, 2011 Zircons were studied from the Ti-Zr placers of the Murray Basin (Mindarie and WIM-150 deposits) and metamorphic rocks of the adjacent Kanmantoo Belt and the Ballarat Trough in Southeast Australia, and from Russian basins with Ti-Zr placers: the Cenomanian-Turonian and Poltavian basins in the East European Platform and the Sarmatian basin in the ...
A. A. Kremenetsky +3 more
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Earth and Planetary Science Letters, 1995 Abstract A core from the Armorican Seamount (46°23.8′N, 12°32.8′W; 3849 m), in the deep NE Atlantic southwest of the British Isles, exhibits unusual Mg/Al ratios in the sediments deposited during the last glacial period. High Mg/Al ratio values are restricted within layers of ≤ 14 cm thick, and mark the presence of ice-rafted detrital material ...
J. Thomson, N.C. Higgs, T. Clayton
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