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The stratigraphy of MarsA global stratigraphy of Mars was developed from a global geologic map series derived from Viking images; the stratigraphy is composed of three maps. A new chronostratigraphic classification system which consists of lower, middle, and upper Noachian, Hesperian, and Amazonian systems is described. The crater-density boundaries of the chronostratigraphic units and the absolute ages of the Martian epochs aer estimated. The relative ages of major geologic units and featues are calculated and analyzed. The geologic history of Mars is summarized on the maps in terms of epochs.
Document ID
19870038386
Document Type
Reprint (Version printed in journal)
Authors
Tanaka, Kenneth L. (USGS Flagstaff, AZ, United States)
Date Acquired
August 13, 2013
Publication Date
November 30, 1986
Publication Information
Publication: Journal of Geophysical Research
Volume: 91
ISSN: 0148-0227
Subject Category
LUNAR AND PLANETARY EXPLORATION
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-15814
Distribution Limits
Public
Copyright
Other