|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
chasma
chasma Originally, a very large canyon on Mars, generally of structural origin. Such structures are distinguished from smaller, sinuous channels (valles, see VALLIS) probably of fluvial origin, and from fossae (see FOSSA) which are linear depressions analogous to terrestrial grabens. The term is now used for any similar large valley on a planetary or satellite surface.
|
|
|
Cite this article
AILSA ALLABY and MICHAEL ALLABY. "chasma." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "chasma." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-chasma.html AILSA ALLABY and MICHAEL ALLABY. "chasma." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-chasma.html |
|
chasma
chasma A canyon or deep linear trough on a planetary surface; pl.chasmata. The name is not a geological term, but is used in the nomenclature of individual features, for example Tithonium Chasma on Mars, or Ithaca Chasma on Tethys.
|
|
|
Cite this article
"chasma." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "chasma." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-chasma.html "chasma." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-chasma.html |
|
Search over 100 encyclopedias and dictionaries:
HighBeam™ Research, Inc. © Copyright 2012. All rights reserved.
The Encyclopedia.com advertising network includes:
