Noachis Terra
Appearance
![](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Wikimolaargyre.jpg/300px-Wikimolaargyre.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Wikimolasouthpole.jpg/300px-Wikimolasouthpole.jpg)
Noachis Terra (/ˈnoʊəkɪs/; lit. "Land of Noah") is an extensive southern landmass (terra) of the planet Mars. It lies west of the giant Hellas impact basin, roughly between the latitudes −20° and −80° and longitudes 30° west and 30° east, centered on 45°S 350°E / 45°S 350°E. It is in the Noachis quadrangle.
The term "Noachian epoch" is derived from this region.
Gallery
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Crater that was buried in another age and is now being exposed by erosion, as seen by the Mars Global Surveyor, under the MOC Public Targeting Program.
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Floor of crater in Noachis quadrangle, as seen by HiRISE under HiWish program.
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Erosion forms on floor of crater, as seen by HiRISE under HiWish program
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Context for image of dark dunes in next image. Picture taken with Mars Global surveyor under MOC Public Targeting Program.
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Dark dunes (probably basalt), in an intracrater dune field, Noachis. Picture from Mars Global Surveyor, under the MOC Public Targeting Program.
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Wide view of gullies in Arkhangelsky Crater, as seen by HiRISE under HiWish program
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Close-up of small channels in gullies in Arkhangelsky Crater, as seen by HiRISE under HiWish program Patterned ground in the shape of polygons can be seen to the right. Note: this is an enlargement of the previous image from Arkhangelsky Crater.
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Close-up of a gully showing a channel going across the apron, as seen by HiRISE under HiWish program. Note: this is an enlargement of a previous image from Arkhangelsky Crater.
Gullies on dunes
[edit]Gullies are found on some dunes. These are somewhat different from gullies in other places, like the walls of craters. Gullies on dunes seem to keep the same width for a long distance and often just end with a pit, instead of an apron. Many of these gullies are found on dunes in the Russel crater.
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Wide view of dunes in Russell Crater, as seen by HiRISE Many narrow gullies are visible.
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Close view of the end of gullies in Russell Crater, as seen by HiRISE Note: These type of gullies do not usually end with an apron. The location is Noachis quadrangle.
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Close view of the end of gullies in Russell Crater, as seen by HiRISE
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Close, color view of the end of gullies in Russell Crater, as seen by HiRISE
Interactive Mars map
[edit]![The image above contains clickable links](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Interactive_icon.svg/12px-Interactive_icon.svg.png)
(See also: Mars Rovers map and Mars Memorial map) (view • discuss)
Further reading
[edit]- Lorenz, R. 2014. The Dune Whisperers. The Planetary Report: 34, 1, 8-14
- Lorenz, R., J. Zimbelman. 2014. Dune Worlds: How Windblown Sand Shapes Planetary Landscapes. Springer Praxis Books / Geophysical Sciences.
- Ruj, T., Komatsu, G., Dohm, J.M., Miyamoto, H. and Salese, F., 2017. Generic identification and classification of morphostructures in the Noachis-Sabaea region, southern highlands of Mars. Journal of Maps, 13(2), pp. 755–766. DOI: 10.1080/17445647.2017.1379913.
- Ruj, T., Komatsu, G., Pasckert, J.H. and Dohm, J.M., 2018. Timings of early crustal activity in southern highlands of Mars: Periods of crustal stretching and shortening. Geoscience Frontiers.
External links
[edit]- (in English) ESA Science and Technology: Noachis Terra