Effect of shallow-level contamination on the helium isotope systematics of ocean-island lavas
The bimodal distribution of helium isotope ratios in ocean-island lavas has provided powerful constraints on the composition and evolution of the Earth's mantle. 'High-3He hotspot' ratios (3He/4He greater than in mid-ocean-ridge basalt, MORB) found on Hawaii and Iceland are thought to...
| المؤلفون الرئيسيون: | , , |
|---|---|
| التنسيق: | Journal article |
| اللغة: | English |
| منشور في: |
1995
|