ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The widespread valley networks of Mars are predominantly associated with the heavy-bombardment phase of cratering history12, corresponding to the Noachian Period13. Local areas of younger valleys are recognized14, but nearly all martian valleys show remarkably low drainage densities, ranging from ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/341514a0
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