Degassing and contamination of noble gases in Mid-Atlantic Ridge basalts

New He, Ne, Ar and CO2 stepped-crushing data from the Mid-Atlantic Ridge show that contamination of basalts by atmospheric noble gases involves three or more components: unfractionated air, fractionated air with high 36Ar/22Ne (45) and fractionated air with low 36Ar/22Ne (5). In addition, the magmat...

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Bibliographic Details
Main Authors: Burnard, P. (Author), Harrison, D. (Author), Turner, G. (Author), Nesbitt, R. (Author)
Format: Article
Language:English
Published: 2003-01.
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