长寿
氢
环境科学
地质学
化学
医学
老年学
有机化学
作者
Davide Novella,Sylvie Demouchy,Nathalie Bolfan‐Casanova
出处
期刊:Elements
[Mineralogical Society of America]
日期:2024-08-01
卷期号:20 (4): 235-240
标识
DOI:10.2138/gselements.20.4.235
摘要
The oceans are voluminous H2O reservoirs that regulate climate and life on Earth. Yet much larger H2O reservoirs, potentially accounting for several oceans, may exist in the Earth’s mantle and core in the form of H atoms trapped into the structure of nominally anhydrous minerals (NAMs) and metallic alloys. Determining the size of these ‘hidden oceans’ is key to understanding planetary evolution and surface dynamics and can be done by combining data from rare natural samples with experimental and theoretical models. The longevity of these deep H reservoirs is controlled by H transport rates over geological times, which are dominated by percolation rates, once H partitions into melts, or by plate mobility, if H remains locked in NAMs.
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