125 resultados para isotope

em BORIS: Bern Open Repository and Information System - Berna - Suiça

A gas chromatography/pyrolysis/isotope ratio mass spectrometry system for high-precision dD measurements of atmospheric methane extracted from ice cores

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A gas chromatography/pyrolysis/isotope ratio mass spectrometry system for high precision dD measurements of atmospheric methane extracted from ice cores

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Temporal and spatial variation of stable-isotope ratios and accumulation rates in the hinterland of Neumayer station, East Antarctica

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Cosmogenic stable isotope effects on tungsten, osmium, and chromium in the Carbo iron meteorite

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Responses of wood anatomy and carbon isotope composition of Quercus pubescens saplings subjected to two consecutive years of summer drought

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Stable isotope profiles (Ca, O, C) through modern brachiopod shells of T. septentrionalis and G. vitreus: Implications for calcium isotope paleo-ocean chemistry

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Geochemical characteristics and Sr-Nd-Hf isotope compositions of mantle xenoliths and host basalts from Assab, Eritrea: implications for the composition and thermal structure of the lithosphere beneath the Afar Depression

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Global Ca isotope variations in c. 0.7 Ga old post-glacial carbonate successions

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The magma and metal source of giant porphyry-type ore deposits, based on lead isotope microanalysis of individual fluid inclusions

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Noble gas isotope sites and mobility in mafic rocks and olivine

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Barium isotope fractionation in the global barium cycle: First evidence from barium minerals and precipitation experiments

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U-Pb and Lu-Hf isotope systematics of lower crust from central-southern Mexico - Geodynamic significance of Oaxaquia in a Rodinia Realm

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Stable Cu and Zn isotope ratios as tracers of sources and transport of Cu and Zn in contaminated soil

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Copper isotope fractionation during complexation with insolubilized humic acid

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Isotope ratios of nonexchangeable hydrogen in soils from different climate zones

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