Dilly Crater, as seen by HiRISE.
Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak. The peak is caused by a rebound of the crater floor following the impact.
Dilly crater and vicinity, as seen by CTX camera on MRO
- "Dilly (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. https://books.google.com/books?id=NoDvAAAAMAAJ. Retrieved 7 March 2011.
Original source: https://en.wikipedia.org/wiki/ Dilly (crater). Read more