Editing Caldera (section)

===Non-explosive calderas===
[[File:Iss038e012569, Caldera Sollipulli.jpg|thumb|[[Sollipulli]] Caldera, located in central Chile near the border with Argentina, filled with ice. The volcano is in the southern Andes Mountains within Chile's Parque Nacional Villarica.<ref>{{cite web | url=http://earthobservatory.nasa.gov/IOTD/view.php?id=82676 | title=EO | website=Earthobservatory.nasa.gov | access-date=20 March 2014| date=2013-12-23 }}</ref>]]

Some volcanoes, such as the large [[shield volcano]]es [[Kīlauea]] and [[Mauna Loa]] on the island of [[Hawaii (island)|Hawaii]], form calderas in a different fashion. The magma feeding these volcanoes is [[basalt]], which is silica poor. As a result, the magma is much less [[Viscosity|viscous]] than the magma of a rhyolitic volcano, and the magma chamber is drained by large lava flows rather than by explosive events. The resulting calderas are also known as subsidence calderas and can form more gradually than explosive calderas. For instance, the caldera atop [[Fernandina Island]] collapsed in 1968 when parts of the caldera floor dropped {{convert|350|m}}.<ref name=gvp>{{cite gvp | vn=353010&vtab=Photos | title=Fernandina: Photo}}</ref>