World Library  
Flag as Inappropriate
Email this Article

Hebes Chasma

Article Id: WHEBN0014439136
Reproduction Date:

Title: Hebes Chasma  
Author: World Heritage Encyclopedia
Language: English
Subject: Echus Chasma, Transit of Venus from Mars, Moons of Mars, Pityusa Patera, Asopus Vallis
Collection: Valleys and Canyons on Mars
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Hebes Chasma

Hebes Chasma
Hebes Chasma based on THEMIS day-time image
Coordinates
Length 319 km
Width 130 km
Depth 6 km
View of most of Hebes Chasma (upper center and right) in mosaic of THEMIS infrared images. Parts of Ophir and Echus chasmata are visible at lower right and upper left, respectively. Just left of center, a side canyon can be seen following a graben towards the left. Perrotin Crater is just left of lower center.

Hebes Chasma is an isolated chasma just north of the Valles Marineris canyon system of Mars. It is centered at 1 degree southern latitude and 76 degrees western longitude, just between the Martian equator and the Valles Marineris system, just east of the Tharsis region.

Contents

  • Geography 1
  • Origin of mesa 2
  • See also 3
  • References 4
  • External links 5

Geography

Hebes Chasma is a completely closed depression in the surface of Mars, with no outflows to the nearby Echus Chasma to the west, Perrotin Crater to the southwest, or Valles Marineris to the south. Its maximum extents are approximately 320 km east to west, 130 km north to south, and 5 to 6 km in depth. At the center of the depression is Hebes Mensa, a large mesa rising some 5 km off the valley floor, nearly as high as the surrounding terrain. This central plateau makes Hebes Chasma a unique valley in Martian geography.

In high resolution pictures of Mars Express ( http://spaceinimages.esa.int/Images/2013/10/Hebes_Chasma ) blue areas at the deepest section of the depression show characteristics of a lake: Sharp borders between the yellow and blue area and light blue near the yellow area, becoming darker away from the border.

Origin of mesa

The walls of Hebes Chasma weather differently than the slopes on the mesa on its floor. Also, studies of the thermal inertia suggest that the mesa and the walls of the canyon are made of different substances. Thermal inertia is how long the surface holds heat. For example, rocky areas will stay warmer than dust at night. One popular idea that explains the difference between the depression's walls and the mesa slopes is that the mesa was formed from material that accumulated in a lake.[1]

See also

References

  1. ^ http://themis.asu.edu/features/hebes

External links

  • A trough in the grand canyon of Mars - European Space Agencies 3-dimensional images of Hebes Chasma
  • Fly-through movie of Hebes Chasma - video from Mars Express data, also available in Windows Media Player version
  • Hebes Chasma on Google Mars - scrollable map centered on Hebes Chasma
  • History's Layers in Hebes Chasma - THEMIS feature page on Hebes Chasma
  • Terragen render of Hebes Chasma
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.