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Descartes region - Evidence for Copernican-age volcanism.A model that suggests that the high-albedo central region of the Descartes Formation was formed by Copernican-age volcanism was developed from Orbiter photography, Apollo 12 multispectral photography, earth-based spectrophotometry, and thermal IR and radar data. The bright surface either is abundant in centimeter-sized rocks or is formed from an insulating debris layer overlying a surface with an abundance of rocks in the 1- to 20-cm size range. On the basis of these data, the bright unit is thought to be a young pyroclastic deposit mantling older volcanic units of the Descartes Formation. Since the Apollo 16 target point is only 50 km NW of the central part of this unit, evidence for material associated with this unique highland formation should be searched for in returned soil and rock samples.
Document ID
19720040000
Document Type
Reprint (Version printed in journal)
Authors
Head, J. W., III (Bellcomm, Inc. Washington, D.C., United States)
Goetz, A. F. H. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 6, 2013
Publication Date
March 10, 1972
Publication Information
Publication: Journal of Geophysical Research
Volume: 77
Subject Category
SPACE SCIENCES
Funding Number(s)
CONTRACT_GRANT: NASW-417
Distribution Limits
Public
Copyright
Other