Nilosyrtis Mensae

Nilosyrtis Mensae
Nilosyrtis Mensae
Astapus Colles.JPG
Astapus Colles Mounds and Knobs, as seen by HiRISE. Scale bar is 500 meters long.
Coordinates 36°52′N 67°54′E / 36.87°N 67.9°E / 36.87; 67.9Coordinates: 36°52′N 67°54′E / 36.87°N 67.9°E / 36.87; 67.9
Dimensions 705 km across
Naming a classical albedo feature
v · d · e

Nilosyrtis Mensae is an area of Mars in the Casius quadrangle. It is centered on the coodinates of 36.87° N and 67.9° E. Its western and eastern longitudes are 51.1° E and 74.4° E. North and south latitudes are 36.87° N and 29.61° N.[1] Nilosyrtis Mensae is just to the east of Protonilus Mensae and both lie along the Martian dichotomy boundary. Its name was adapted by the IAU in 1973. It was named after a classical albedo feature, and it is 705 km across.

The surface of Nilosyrtis Mensae is classified as Fretted terrain. This terrain contains cliffs, mesas, and wide flat valleys.Surface features are believed to have been caused by debris covered glaciers.[2] [3] [4] These glaciers are termed Lobate debris aprons when surrounding mounds and mesas.[5] [6] [7] [8] When the glaciers are in the valleys they are called Lineated valley fill.[9][10] [11] [12]


References

  1. ^ Blue, Jennifer. "Nilosyrtis Mensae". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ^ Greeley, R. and J. Guest. 1987. Geological map of the eastern equatorial region of Mars, scale 1:15,000,000. U. S. Geol. Ser. Misc. Invest. Map I-802-B, Reston, Virginia
  3. ^ Sharp, R. 1973. Mars Fretted and chaotic terrains. J. Geophys. Res: 78. 4073-4083
  4. ^ ISBN 0-8165-1247-4
  5. ^ Plaut, J. et al. 2008. Radar Evidence for Ice in Lobate Debris Aprons in the Mid-Northern Latitudes of Mars. Lunar and Planetary Science XXXIX. 2290.pdf
  6. ^ Carr, M. 2006. The Surface of Mars. Cambridge University Press. ISBN-13 978-0-521-87201-0
  7. ^ Squyres, S. 1978. Martian fretted terrain: Flow of erosional debrid. Icarus: 34. 600-613.
  8. ^ ISBN 0-8165-1257-4
  9. ^ Morgan, G. and J. Head III. 2009. Sinton crater, Mars: Evidence for impact into a plateau icefield and melting to produce valley networks at the Hesperian-Amazonian boundary. Icarus: 202. 39-59.
  10. ^ Morgan, G. et al. 2009. Lineated valley fill(LVF) and lobate debris aprons (LDA) in the Deuteronilus Mensae northern dichotomy boundary region, Mars: Constraints on the extent, age, and episodicity of Amazonian glacial events. Icarus: 202. 22-38.
  11. ^ Head, J., et al. 2006. Extensive valley glacier deposits in the northern mid-latitudes of Mars: Evidence for the late Amazonian obliquity-driven climate change. Earth Planet. Sci. Lett. 241. 663-671
  12. ^ Head, J., et al. 2006. Modification if the dichotomy boundary on Mars by Amazonian mid-latitude regional glaciation. Geophys. Res Lett. 33

See also


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Nilosyrtis Mensae — est une région de mesas située sur la planète Mars dans le quadrangle de Casius sur le rivage septentrional de Terra Sabaea en bordure d Utopia Planitia, s estompant progressivement jusqu aux collines de Colles Nili. Centrée par 34,7° N et… …   Wikipédia en Français

  • Deuteronilus Mensae — is a region on Mars 937 km across and centered at 43°54′N 337°24′W / 43.9°N 337.4°W / 43.9; 337.4. It covers 344° 325° West and 40° 48° North …   Wikipedia

  • Martian dichotomy — The most conspicuous feature of Martian surface geology is a sharp contrast, known as the Martian dichotomy, between the rugged southern highlands and the relatively smooth northern basins. The two hemispheres differ in elevation by 1 to… …   Wikipedia

  • Mensa (Mars) — Pour les articles homonymes, voir Mensa. Mensa (pluriel mensae) est un mot d origine latine qui désigne une table. Ce mot possède la même racine que le terme espagnol Mesa signifiant aussi « table » et employé en géomorphologie une… …   Wikipédia en Français

  • Mensa (mars) — Pour les articles homonymes, voir Mensa. Mensa (pluriel mensae) est un mot d origine latine qui désigne une table. Ce mot possède la même racine que le terme espagnol Mesa signifiant aussi « table » et employé en géomorphologie une… …   Wikipédia en Français

  • Concentric crater fill — is when the floor of a crater is mostly covered with a large number of parallel ridges.[1] It is common in the mid latitudes of Mars, and is widely believed to be caused by glacial movement. Areas on Mars called Deuteronilus Mensae and Protonilus …   Wikipedia

  • Quadrangle de Syrtis Major — Dans le cadre de la géographie de la planète Mars, le quadrangle de Syrtis Major également identifié par le code USGS MC 13 désigne une région martienne définie par des latitudes comprises entre 0º et 30º N et des longitudes comprises entre… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”