Difference between revisions 2239156 and 2239204 on enwikiversity

[[Image:Chain of impact craters on Ganymede.jpg|thumb|right|250px|The image shows a chain of craters on Ganymede. Credit: Galileo Project, Brown University, JPL, NASA.]]
A '''crater''' may be any large, roughly circular, depression or hole in or beneath the rocky surface of a rocky object.

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|last=Moore
|first=Jeffrey M., Chapman, Clark R.; Bierhaus, Edward B.
|display-authors=etal
|title=Callisto, In: ''Jupiter: The planet, Satellites and Magnetosphere''
|date=2004
|publisher=Cambridge University Press
|editor=Bagenal, F.
; ⏎
|editor2=Dowling, T.E.; ⏎
|editor3=McKinnon, W.B.
|url=http://lasp.colorado.edu/~espoclass/homework/5830_2008_homework/Ch17.pdf
}}</ref>

Many fresh impact craters like Lofn also show enrichment in carbon dioxide.<ref name=Hibbitts1998>{{ cite book
|last=Hibbitts
|first=C.A., McCord, T. B.; Hansen, G.B.
|title=Distributions of CO<sub>2</sub> and SO<sub>2</sub> on the Surface of Callisto
(contracted; show full)g the primary mission, revealing large numbers of active volcanoes (both thermal emission from cooling magma on the surface and volcanic plumes), numerous mountains with widely varying morphologies, and several surface changes that had taken place both between the ''Voyager'' and ''Galileo'' eras and between ''Galileo'' orbits.<ref name="IobookChap3">{{cite book 
|last=Perry 
|first=J.
|display-authors=etal 
|editor=Lopes, R. M. C.
; and ⏎
|editor2=Spencer, J. R.  
|title=A Summary of the Galileo mission and its observations of Io, In: ''Io after Galileo'' 
|date=2007 
|publisher=Springer-Praxis 
|isbn=3-540-34681-3 
|pages=35–59 
(contracted; show full)[[Category:Earth sciences/Lectures]]
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