Editing Caldera (section)

===The Moon===
{{Further|Volcanism on the Moon}}
The [[Moon]] has an outer shell of low-density crystalline rock that is a few hundred kilometers thick, which formed due to a rapid creation. The craters of the Moon have been well preserved through time and were once thought to have been the result of extreme volcanic activity, but are currently believed to have been formed by meteorites, nearly all of which took place in the first few hundred million years after the Moon formed. Around 500&nbsp;million years afterward, the Moon's mantle was able to be extensively melted due to the decay of radioactive elements. Massive basaltic eruptions took place generally at the base of large impact craters. Also, eruptions may have taken place due to a magma reservoir at the base of the crust. This forms a dome, possibly the same morphology of a shield volcano where calderas universally are known to form.<ref name = "Wilson"/> Although caldera-like structures are rare on the Moon, they are not completely absent. The [[Compton–Belkovich Thorium Anomaly|Compton-Belkovich Volcanic Complex]] on the [[far side of the Moon]] is thought to be a caldera, possibly an [[Pyroclastic flow|ash-flow]] caldera.<ref name="Compton-Belkovich">{{cite journal |last1=Chauhan |first1=M. |last2=Bhattacharya |first2=S. |last3=Saran |first3=S. |last4=Chauhan |first4=P. |last5=Dagar |first5=A. |title=Compton–Belkovich Volcanic Complex (CBVC): An ash flow caldera on the Moon |journal=Icarus |date=June 2015 |volume=253 |pages=115–129 |doi=10.1016/j.icarus.2015.02.024 |bibcode=2015Icar..253..115C }}</ref>