Assertion: boron | /r/CreatedBy | cosmic ray spallation
Facets:
value: entirely
type: DEGREE
Source sentences:
text: Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar System and in the Earth's crust.
text: Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust.
text: Because boron is produced entirely by cosmic ray spallation and not by stellar nucleosynthesis, it is a low-abundance element in both the solar system and the Earth's crust.
text: Boron is produced entirely by cosmic ray spallation (as a result of nuclear reactions), and not by stellar nucleosynthesis (not within stars as a result of fusion or supernovae).