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Now showing items 7688-7707 of 39068
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(1997)The evaluation of the economic importance of bacterial methane is still a matter of discussion, linked to the evolution of the geochemical understanding. Methane occurrence or accumulations with light isotopic ratios, both ...
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(1996)We present a new approach for the rationalization of trace element partitioning between silicate melts and minerals, which is not based on the empirical, parameterised continuum models in common use. We calculate the ...
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(PANGAEA, 2010-06-14)
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(2003)Spherical objects, identified as microfossils and named Isuasphaera isua (Pflug), were reported in 1978 from a chert in the 3.7-3.8Ga Isua Greenstone Belt (IGB). Soon afterwards the biological nature of these objects was ...
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(2006)Itatodon tatarinovi Lopatin et Averianov, 2005 известен по двум нижним молярам и фрагменту нижнего моляра из верхней части итатской свиты (батский ярус) Березовского карьера на юге Красноярского края. По наличию псевдоталонида, ...
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(2000)The 1989 IUGS classification of the igneous rocks for the high-Mg and picritic volcanic rocks has been revised. Instead of an 18 wt % MgO minimum limit being applied for all high-Mg and picritic volcanic rocks, that is now ...
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(2017)
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(2003)The discrimination between chemical and thermal heterogeneity in the Earth's mantle remains one of the most important and challenging questions to be answered by observational and theoretical geophysics. To answer this ...
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(2000)The alunite supergroup consists of more than 40 minerals with the general formula DG 3( T O4)2(OH,H2O)6, wherein D represents cations with a coordination number greater or equal to 9, and G and T represent sites with ...
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(2004)Johillerite from a fumarole in the North Breach of the Great Fissure Tolbachik eruption (GFTE), Kamchatka Peninsula, Russia, monoclinic, a 6.7520(14), b 12.739(3), c 11.068(2) Angstrom, beta 100.37(3), V 936.4(2) Angstrom(3), ...
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(2003)Detailed regional body wave tomographic inversion of the Western Pacific region has been performed using P and S travel times from common sources and receivers, with a joint inversion in terms of bulk-sound and shear ...
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(2002)1] We use mantle and inner core sensitive normal modes to invert for laterally varying mantle models and a transversely isotropic inner core. To obtain an inner core model that is compatible with long-period mode and ...
Now showing items 7688-7707 of 39068