Table 6. Contribution of principal terrestrial reservoirs to plume source

ReservoirContribution, (by weight %)22Ne, 10-14 mole/g20Ne/22Ne21Ne/22Ne, lm4He/3He, 10640Ar/36Ar, lm3He/22Ne36Ar/22Ne
Lower mantle (lm) 1.8 6.05 13.7 0.0336 0.0055 5300 5.6 1.82
Upper mantle 98.2 0.07 13.7 0.0596 0.09 40000 5.56 5.34
Fresh water 0.06 95 9.8 0.0289 100 296 0 80
Plume calculated 100 - 12.7 0.04 0.036 3200 4.23 21.1
Plume observed - - 12.6 0.04 0.03 3400 6.8 <38

This document was generated by TeXWeb (Win32, v.1.0) on March 28, 1999.