Gases in Tektite Bubbles.
Spectroscopic analysis of light produced by electrodeless discharge in a tektite bubble showed the main gases in the bubble to be neon, helium, and oxygen. The neon and helium have probably diffused in from the atmosphere, while the oxygen may be atmospheric gas incorporated in the tektite during its formation.
O'keefe
J A
JA
Lowman
P D
PD
Dunning
K L
KL