Enhanced 3He 4He ratios and cosmogenic helium in ultramafic xenoliths
Recently erupted ultramafic xenoliths generally have ratios of 3He 4He = (5-10) × RA, which are similar to the values characterizing mid-ocean ridge basalts (MORB). During the course of additional investigations of ultramafic xenoliths, samples from several locations have been found with 3He 4He r...
| Prif Awduron: | , , |
|---|---|
| Fformat: | Journal article |
| Iaith: | English |
| Cyhoeddwyd: |
1987
|