NDLI: The role of impact cratering for mars sample return

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The role of impact cratering for mars sample return

Content Provider	NASA Technical Reports Server (NTRS)
Author	Schultz, P. H.
Copyright Year	1988
Description	The preserved cratering record of Mars indicates that impacts play an important role in deciphering Martian geologic history, whether as a mechanism to modify the lithosphere and atmosphere or as a tool to sample the planet. The various roles of impact cratering in adding a broader understanding of Mars through returned samples are examined. Five broad roles include impact craters as: (1) a process in response to a different planetary localizer environment; (2) a probe for excavating crustal/mantle materials; (3) a possible localizer of magmatic and hydrothermal processes; (4) a chronicle of changes in the volcanic, sedimentary, atmospheric, and cosmic flux history; and (5) a chronometer for extending the geologic time scale to unsampled regions. The evidence for Earth-like processes and very nonlunar styles of volcanism and tectonism may shift the emphasis of a sampling strategy away from equally fundamental issues including crustal composition, unit ages, and climate history. Impact cratering not only played an important active role in the early Martian geologic history, it also provides an important tool for addressing such issues.
File Size	216617
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890008981
Archival Resource Key	ark:/13960/t8bg7kf3w
Language	English
Publisher Date	1988-01-01
Access Restriction	Open
Subject Keyword	Lunar And Planetary Exploration Geochronology Meteorite Craters Projectile Cratering Regolith Mars Surface Samples Tectonics Magma Mars Sample Return Missions Core Sampling Chemical Composition Mars Surface Impact Damage Mars Volcanoes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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