Show Summary Details

Page of

PRINTED FROM OXFORD REFERENCE (www.oxfordreference.com). (c) Copyright Oxford University Press, 2013. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use (for details see Privacy Policy and Legal Notice).

date: 03 June 2020

Valles Marineris 

Source:
A Dictionary of Astronomy
Author(s):
Ian RidpathIan Ridpath

A large system of canyons on Mars, centred at about –14° lat., 60° W long. It is the largest canyon in the Solar System, 3800 km long, up to 500 km wide, and over 4 km deep in places. It is really a complex of several parallel troughs, the central ones being the Ius, Melas, Coprates, and Eos Chasmata, with Tithonium, Ophir, Candor, and Gangis Chasmata to the north. Hebes and Juventae Chasmata are separate from the main complex, lying further north. They are all thought to have been caused by tensional faulting within Mars, and all have been modified and enlarged by the action of ancient water channels running down their walls. Valles Marineris, named after the Mariner 9 spacecraft that discovered it in ... ...

Access to the complete content on Oxford Reference requires a subscription or purchase. Public users are able to search the site and view the abstracts and keywords for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can''t find the answer there, please contact us.