NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Preliminary Mariner 9 report on the geology of Mars.Mariner 9 results indicate that Mars is geologically far more heterogeneous than previously suspected from earlier flyby missions; the surface has been shaped by volcanic, tectonic, erosional, and depositional activity. The equatorial region between 30 deg N and 30 deg S latitude is depicted in four geologic sketch maps, and seventeen geologic units are defined on the basis of their textural characteristics. The maps and the brief descriptions of geological units portrayed are followed by a series of more interpretive discussions dealing with topical problems and a summary geologic history. Topics covered include cratering, circular basins, volcanism, canyons, chaotic terrain, channels, and eolian activity.
Document ID
19730032674
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mccauley, J. F.
Carr, M. H.
Masursky, H.
Milton, D. J.
Wilhelms, D. E.
(U.S. Geological Survey, Flagstaff, Ariz. and Menlo Park Calif., United States)
Cutts, J. A.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Hartmann, W. K.
(Science Applications, Inc. Tucson, Ariz., United States)
Sharp, R. P.
(California Institute of Technology Pasadena, Calif., United States)
Date Acquired
August 7, 2013
Publication Date
October 1, 1972
Subject Category
Space Sciences
Accession Number
73A17476
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available