Assertion: volcano | /r/CapableOf | shift throughout this progression
Facets:
value: from rhyodacitic pumice
type: LOCATION
value: to basaltic ash flows
type: OTHER
Source sentences:
text: Throughout this progression, the volcano shifted from rhyodacitic pumice to basaltic ash flows, the latter producing the Black Lapilli tuff that covers the western side of the volcano.