Assertion: volcano's eruption | /r/MadeOf | unusually fluid felsic magmas
Facets:
Source sentences:
text: Although the term is generally ascribed to basaltic shields it has also at times been appended to rarer scutiform volcanoes of differing magmatic composition—principally pyroclastic shields, formed by the accumulation of fragmental material from particularly powerful explosive eruptions, and rarer felsic lava shields formed by unusually fluid felsic magmas.