dc.contributor.author | Hawke, B. Ray | en |
dc.contributor.author | Peterson, Chris A. | en |
dc.contributor.author | Lucey, Paul G. | en |
dc.contributor.author | Taylor, G. Jeffrey | en |
dc.contributor.author | Blewett, David T. | en |
dc.contributor.author | Campbell, Bruce A. | en |
dc.contributor.author | Coombs, Cassandra R. | en |
dc.contributor.author | Spudis, Paul D. | en |
dc.date.accessioned | 2008-10-28T18:00:59Z | |
dc.date.available | 2008-10-28T18:00:59Z | |
dc.date.issued | 1993 | |
dc.identifier.citation | Hawke, B. Ray, Peterson, Chris A., Lucey, Paul G., Taylor, G. Jeffrey, Blewett, David T., Campbell, Bruce A., Coombs, Cassandra R., and Spudis, Paul D. 1993. "<a href="https://repository.si.edu/handle/10088/6372">Remote Sensing Studies of the Terrain Northwest of Humorum Basin</a>." <em>Geophysical Research Letters</em>. 20 (6):419–422. | en |
dc.identifier.issn | 0094-8276 | |
dc.identifier.uri | http://hdl.handle.net/10088/6372 | |
dc.description.abstract | 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 basin but prior to the Orientale impact. | en |
dc.format.extent | 277170 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.relation.ispartof | Geophysical Research Letters | en |
dc.title | Remote Sensing Studies of the Terrain Northwest of Humorum Basin | en |
dc.type | Journal Article | en |
dc.identifier.srbnumber | 71540 | |
rft.jtitle | Geophysical Research Letters | |
rft.volume | 20 | |
rft.issue | 6 | |
rft.spage | 419 | |
rft.epage | 422 | |
dc.description.SIUnit | NASM | en |
dc.description.SIUnit | NASM-CEPS | en |
dc.citation.spage | 419 | |
dc.citation.epage | 422 |