作者: G. R. Osinski , L. L. Tornabene , P. Lee , J. E. Moersch
DOI:
关键词: Impact structure 、 VNIR 、 Mars Exploration Program 、 Impact crater 、 Remote sensing 、 Planetary geology 、 Ejecta 、 Solar System 、 Lunar craters 、 Geology
摘要: Impact cratering is the most widespread geological process in Solar System. craters can provide 'windows' into subsurfaces of planetary bodies through excavation and uplift. By utilizing remote methods visible near infrared (VNIR; 0.4-1.4 micron), short-wavelength (SWIR; 1.4-2.5 micron) thermal (TIR 7-14 subsurface mineral compositions may be identified mapped via impact craters. Complex particular, expose minerals from both shallow deep-seated subsurface, which spectroscopically. have morphological features such as central peaks or peak rings, are composed relatively coherent lithologies tapped crustal components. While near-surface components observed rocks uplifted exposed rim crater walls, ejecta deposits. Only two previously published studies using this approach been successful on large bodies. Tompkins Pieters utilized ultraviolet VNIR Clementine to characterize near- deep-subsurface materials around lunar The work Ramsey Wright was first spectroscopic study successfully identify near-subsurface wall a terrestrial structure, namely Meteor Crater. Here we present early results third study, spectroscopy evaluation Haughton structure (HIS). purpose serve proof concept that visible/infrared case, analysis LANDSAT 7 ETM+ ASTER data well-preserved HIS deciphering composition crusts. This technique particularly promising for Mars were limited tectonic uplift ubiquitous dust-mantling offer few opportunities access information.