NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Mare Crisium - Regional stratigraphy and geologic historySpectral reflectance measurements of five Luna 24 samples and new telescopic reflectance spectra of 10-20 km areas of seven sites in Mare Crisium have been used to calibrate multispectral images of mare units. Based on these data, three major mare units are defined in the Crisium basin and their stratigraphy is interpreted. The oldest mare unit is exposed in the ejecta of the craters Picard and Peirce and along the outer edge of the southeastern part of the basin. The next younger unit includes the Luna 24 site and generally follows a topographic annulus along the basin margin. The youngest mare unit occupies the central part of the basin. It is concluded that subsidence occurred throughout the emplacement of mare units, including extensive warping and downfaulting of the inner part of the Crisium basin.
Document ID
19780050214
Document Type
Reprint (Version printed in journal)
Authors
Adams, J. B. (Washington, University Seattle, Wash., United States)
Head, J. W., III (Brown University Providence, R.I., United States)
Mccord, T. B. (Hawaii, University Honolulu, Hawaii, United States)
Pieters, C. (NASA Johnson Space Center Houston, Tex., United States)
Zisk, S. (Haystack Observatory Westford, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1978
Publication Information
Publication: Geophysical Research Letters
Volume: 5
Subject Category
LUNAR AND PLANETARY EXPLORATION
Funding Number(s)
CONTRACT_GRANT: NSG-7173
CONTRACT_GRANT: NGR-40-002-116
CONTRACT_GRANT: NGL-22-009-790
CONTRACT_GRANT: NSG-7048
CONTRACT_GRANT: NSG-7197
Distribution Limits
Public
Copyright
Other