Astronomy:Oz Terra
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Short description: Surface feature on the Plutonian moon Charon
 An annotated map of Charon, with Oz Terra in the norther hemisphere. | |
| Location | Charon |
|---|---|
| Discoverer | New Horizons |
| Eponym | Land of Oz |
Oz Terra is the unofficial name given to a major geological region on Charon. The Pluto-facing hemisphere of Charon is divided onto two primary regions; Oz Terra in the north and Vulcan Planum in the south. These regions are separated by a series of scarps near Charon's equator.[1] The region was discovered by New Horizons during its flyby of Pluto in July 2015.
Geology
Oz Terra sits about a kilometer higher than Vulcan Planum, and is typified by large crustal blocks, having fractured early in Charon's history.[2] The region was formed about 4 billion years ago, when a subsurface ocean of water and ammonia flowed to the surface, and then solidified.[3]
See also
- List of geological features on Charon
References
- ↑ Beyer, Ross A.; Spencer, John R.; McKinnon, William B. et al. (May 2019). "The nature and origin of Charon's smooth plains". Icarus 323: 16–32. doi:10.1016/j.icarus.2018.12.036. Bibcode: 2019Icar..323...16B.
- ↑ Robbins, Stuart J.; Beyer, Ross A.; Spencer, John R. et al. (January 2019). "Geologic Landforms and Chronostratigraphic History of Charon as Revealed by a Hemispheric Geologic Map". Journal of Geophysical Research: Planets 124 (1): 155–174. doi:10.1029/2018JE005684. Bibcode: 2019JGRE..124..155R.
- ↑ O’Hanlon, Larry (26 February 2019). "New map reveals geology and history of Pluto's moon Charon". American Geophysical Union. https://blogs.agu.org/geospace/2019/02/26/new-map-reveals-geology-and-history-of-plutos-moon-charon/.
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