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Martian sample sites: Examples based on a global geologic perspectiveTen areas were selected that each include several rock units of varying lithology and age. These areas were chosen to optimize the geologic and chronologic data return from Mars. Geologic mapping and stratigraphic studies identify stratigraphic ages, rock types, and information on Martian geologic history that samples of a given site may yield. Volcanic rocks occur over much of the planet and in virtually all stratigraphic positions, and they are amenable to radioisotopic dating. Therefore, a reasonable and essential goal for a sample return mission is to return datable rocks from widely varying strata. Generally, about three or four major geologic units can be sampled at any of the given sites, most of which can probably be dated. The Mars Observer mission will aid greatly in interpreting lithology and defining contacts at the high resolution required to actually pinpoint good sample acquisition sites within these areas.
Document ID
19890008983
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Scott, D. H. (Geological Survey Flagstaff, AZ, United States)
Tanaka, K. L. (Geological Survey Flagstaff, AZ, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Lunar and Planetary Inst., Workshop on Mars Sample Return Science
Subject Category
Lunar And Planetary Exploration
Accession Number
89N18354
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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