Assertion: silicic magma | /r/HasProperty | fragmented in volcanic conduit
Facets:
value: because of the growth of bubbles
type: CAUSE
value: because of decompression
type: CAUSE
Source sentences:
text: During Plinian eruptions, pumice and ash are formed when silicic magma is fragmented in the volcanic conduit, because of decompression and the growth of bubbles.