Element fractionation in the petrogenesis of ocean island basalts
Analytical techniques have been developed to measure the very small [230ThP32Th] atomic ratios (3-8x10-6) typical of basaltic lavas using a single focussing mass spectrometer. Compared to conventional alpha-counting methods, the technique presented typically gives a 2-5 fold improvement in reproduci...
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| Format: | Thesis |
| Language: | unknown |
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1992
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| Online Access: | https://oro.open.ac.uk/57323/ https://oro.open.ac.uk/57323/1/541703.pdf https://doi.org/10.21954/ou.ro.0000dfeb |