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Detailed Reference Information |
Hawke, B.R., Peterson, C.A., Lucey, P.G., Taylor, G.J., Blewett, D.T., Campbell, B.A., Coombs, C.R. and Spudis, P.D. (1993). Remote sensing studies of the terrain northwest of Humorum Basin. Geophysical Research Letters 20: doi: 10.1029/92GL02921. issn: 0094-8276. |
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We have used near-infrared reflectance spectra and Earth-based radar data to investigate the composition and origin of the various geologic units northwest of Humorum basin as well as the stratigraphy of the Humorum pre-impact target site. The results of our spectral analysis indicate that at least a portion of the inner, mare-bounding ring is composed of pure anorthosite. Other highlands units in the region are dominated by noritic anorthosite. The anorthosites on the inner ring may have been derived from a layer of anorthosite that exists at depth beneath a more pyroxene-rich unit. Both Gassendi G and F craters expose mare material from beneath a highlands-rich surface unit that was emplaced as a result of the Letronne, Gassendi, and other impact events. This ancient basalt unit was emplaced after the formation of Humorum ¿ American Geophysical Union 1993 |
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Abstract |
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Keywords
Planetology, Solid Surface Planets and Satellites, Composition, Planetology, Solid Surface Planets and Satellites, Surfaces, Planetology, Solid Surface Planets and Satellites, Volcanism, Planetology, Solid Surface Planets and Satellites, Cratering |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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