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Science 20 May 1994:
Vol. 264. no. 5162, pp. 1112 - 1115
DOI: 10.1126/science.264.5162.1112
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Articles
Galileo Multispectral Imaging of the North Polar and Eastern Limb Regions of the Moon
M. J. S. Belton 1,
R. Greeley 2,
R. Greenberg 3,
P. Geissler 3,
A. McEwen 4,
K. P. Klaasen 5,
C. Heffernan 5,
H. Breneman 5,
T. V. Johnson 5,
J. W. Head III 6,
C. Pieters 6,
G. Neukum 7,
C. R. Chapman 8,
C. Anger 9,
M. H. Carr 10,
M. E. Davies 11,
F. P. Fanale 12,
P. J. Gierasch 13,
W. R. Thompson 13,
J. Veverka 13,
C. Sagan 13,
A. P. Ingersoll 14, and
C. B. Pilcher 15
1 National Optical Astronomy Observatories, Tucson, AZ 85719, USA.
2 Department of Geology, Arizona State University, Tempe, AZ 85287-1404, USA.
3 Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 87721, USA.
4 U.S. Geological Survey, Flagstaff, AZ 86001, USA.
5 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
6 Department of Geology, Brown University, Providence, RI 02912, USA.
7 Deutsche Forschungsanstalt fur Luft und Raumfahrt, 8031 Oberpfaffenhofen, Federal Republic of Germany
8 Planetary Science Institute, Tucson, AZ 85719, USA.
9 Institute for Space and Terrestrial Science, Concord, Ontario, Canada L4K 3C8.
10 U.S. Geological Survey, Menlo Park, CA 94025, USA.
11 RAND, Santa Monica, CA 90406, USA.
12 Institute of Geophysics, University of Hawaii, Honolulu, HI 96822, USA.
13 Department of Astronomy, Cornell University, Ithaca, NY 14853, USA.
14 California Institute of Technology, Pasadena, CA 91125, USA.
15 NASA Headquarters, Washington, DC 20546, USA.
Multispectral images obtained during the Galileo probe's second encounter with the moon reveal the compositional nature of the north polar regions and the northeastern limb. Mare deposits in these regions are found to be primarily low to medium titanium lavas and, as on the western limb, show only slight spectral heterogeneity. The northern light plains are found to have the spectral characteristics of highlands materials, show little evidence for the presence of cryptomaria, and were most likely emplaced by impact processes regardless of their age.
Submitted on September 17, 1993
Accepted on March 24, 1994
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- Clementine Observations of the Aristarchus Region of the Moon.
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