| Mo 含量和 Mo 同位素对古海洋氧化还原环境演化的指示作用 |
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| 关键词:Mo isotope redox conditions |
| 基金项目:大洋协会“十五”项目（编号：DY105-01-04-6）和自然科学基金项目（编号：40232020，40172041）资助 |
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| Mo Concentration and Mo Isotope as A Proxy For Oceanic Paleoredox Conditions |
| With the advent of MC-ICPMS, it has become possible to use Mo isotope as a proxy for oceanic paleoredox conditions. Mo concentrations in the ocean had prominent increase in Middle Proterocoic, but Mo isotope compositions of the ocean showed no significant fractionation relative to the continental input from Archean to Middle Proterazoic. Mo isotope compositions of the ocean became continuously heavier from Middle Proterozoic to the present day. The increase of Mo concentration indicates oxidation of the atmosphere, whereas the increase of 97Mo implies the oxidation of the ocean. All this suggests that the atmosphere became oxidative in Late Archean and the ocean became more oxidized from Middle Proterozoic. |
| GAO Jjianfeng,LING Hongfei,ZHAO Kuidong.2005.Mo Concentration and Mo Isotope as A Proxy For Oceanic Paleoredox Conditions[J].Acta Geoscientica Sinica,26(z1):203-204. |
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