Mathematics – Logic
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.3097n&link_type=abstract
Journal of Geophysical Research, vol. 86, Apr. 10, 1981, p. 3097-3121. Research supported by the Deutsche Forschungsgemeinschaft
Mathematics
Logic
189
Chronology, Mars (Planet), Planetary Craters, Planetary Evolution, Projectile Cratering, Volcanoes, Diameters, Erosion, Frequency Distribution, Hypervelocity Impact, Size Distribution, Statistical Analysis, Elysium Planitia, Kasei Vallis, Hecates Tholus, Elysium Mons, Arisa Mons, Apollinaris Patera, Ceraunius Tholus, Photographs, Data Reduction, Data, Craters, Volcanoes, Catalogs, Erosion, Techniques, Moon, Alba Patera, Olympus Mons, Volcanic Features, Lavas, Ages, Tharsis Montes, Volcanism, Procedure, Impa
Scientific paper
Four discussions are conducted: (1) the methodology of relative age determination by impact crater statistics, (2) a comparison of proposed Martian impact chronologies for the determination of absolute ages from crater frequencies, (3) a report on work dating Martian volcanoes and erosional features by impact crater statistics, and (4) an attempt to understand the main features of Martian history through a synthesis of crater frequency data. Two cratering chronology models are presented and used for inference of absolute ages from crater frequency data, and it is shown that the interpretation of all data available and tractable by the methodology presented leads to a global Martian geological history that is characterized by two epochs of activity. It is concluded that Mars is an ancient planet with respect to its surface features.
Gerhard Neukum
Hiller K.
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