chalkofiliniai elementai — statusas T sritis chemija apibrėžtis Sulfidinių rūdų elementai. atitikmenys: angl. chalcophilic elements rus. халькофильные элементы … Chemijos terminų aiškinamasis žodynas
халькофильные элементы — chalkofiliniai elementai statusas T sritis chemija apibrėžtis Sulfidinių rūdų elementai. atitikmenys: angl. chalcophilic elements rus. халькофильные элементы … Chemijos terminų aiškinamasis žodynas
Planetary differentiation — In planetary science, planetary differentiation is the process of separating out different constituents of a planetary body as a consequence of their physical or chemical behaviour, where the body develops into compositionally distinct layers;… … Wikipedia
Age of the Earth — This article is about scientific estimates of the age of the Earth. For religious and other non scientific estimates, see Dating Creation. Earth as seen from Apollo 17 The age of the Earth is 4.54 billion years (4.54 × 109 years ± 1%) … Wikipedia
Rhenium-osmium dating — is a form of radiometric dating based on the beta decay of the isotope 187Re which usually has a half life of 4.16×1010 y [ Smoliar, M.I., Walker, R.J. and Morgan, J.W. (1996). Re Os ages of group IIA, IIIA, IVA, and IVB iron meteorites. Science… … Wikipedia