NDLI: Impact craters on venus

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Impact craters on venus

Content Provider	NASA Technical Reports Server (NTRS)
Author	Schaber, G. G.
Copyright Year	1991
Description	Compared with volcanism and tectonism, impact cratering on Venus has played an overall minor role in sculpting the present-day landscape. The study of Venus impact craters is vital to help place the chronology of the geologic features on the surface in the context of the planet's geological evolution. The degradation of impact craters also provides information on surface and interior processes, particularly alteration by tectonism and volcanism. Through orbit 1422, Magellan mapped about 450 impact craters, with diameters ranging from 2 to 275 km, within an area of about 226 million sq km, or 49 percent of the planet's surface. These craters and their associated deposits show surprisingly little evidence of degradation at the 75 m/pixel resolution of the Magellan SAR. Remarkably few craters in the Magellan images appear to be in the process of being buried by volcanic deposits or destroyed by tectonic activity.
File Size	75564
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920001634
Archival Resource Key	ark:/13960/t50g8k890
Language	English
Publisher Date	1991-06-01
Access Restriction	Open
Subject Keyword	Lunar And Planetary Exploration Geochronology Geomorphology Meteorite Craters Tectonics Radar Imagery Cratering Venus Planet Structural Properties Geology Magellan Spacecraft Nasa Planetary Geology Planetary Evolution Topography Venus Surface Volcanology Planetary Mapping Synthetic Aperture Radar Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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