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Geological context of potential landing site of the Luna-Glob mission

Ivanov, M. A. and Abdrakhimov, A. M. and Basilevsky, A. T. and Dixon, J. L. and Head, J. W. and Chick, L. and Vitten, J. and Zuber, M. T. and Simt, D. E. and Mazarico, E. and Neish, C. D. and Bassey, D. B. J. (2014) Geological context of potential landing site of the Luna-Glob mission. Solar System Research, 48 (6). pp. 391-402. ISSN 0038-0946. http://resolver.caltech.edu/CaltechAUTHORS:20161130-133541821

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Abstract

The region planned for performing the Luna-Glob mission is located in the southern part of the swell surrounding the largest South Pole-Aitken (SPA) basin. The photogeological analysis of the surface topography of this region using the LRO-WAC (resolution of 100 Mpxl) photomaps made it possible to define the following groups of morphological units (area types): (1) related to the formation of relatively fresh impact craters; (2) associated with larger (>100 km across) degraded craters including (2a) external and (2b) inner facies; and (3) occupying intercrater spaces. The comparison of the geological map with the map illustrating the distribution of the epithermal neutron flow (Mitrofanov et al., 2012) shows no correlation between them. Consequently, one should not expect development of rock complexes, which would be characterized by elevated concentrations of water in the region chosen for the Luna-Glob mission and, thus, considered among the first-priority targets. The comparison of the neutron flow distribution with the map of circular polarization of the Mini-RF radar beam also shows no correlation. This means that high values of circular polarization reflect elevated concentrations of rock fragments rather than water accumulations. Even though ice fragments are present, their sizes should only slightly be less as compared with the radar wavelength (12.6 cm). The region planned for investigations in the scope of the Luna-Glob mission corresponds to the swell of the largest (and, likely, oldest) preserved basin and offers a potential opportunity to analyze ancient material of this planet and introduce important constraints into the spectrum of models proposed for explaining the Moon’s origin.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1134/S0038094614060021DOIArticle
http://link.springer.com/article/10.1134%2FS0038094614060021PublisherArticle
Additional Information:© 2014 Pleiades Publishing, Inc. Received July 18, 3014. First Online: 12 November 2014. Photogeological analysis of the potential region of landing of Luna-Glob expedition made by M.A. Ivanov and A.T. Basilevsky supported by the grant of the Russian Science Foundation (project no. 14-22-00197).
Funders:
Funding AgencyGrant Number
Russian Science Foundation14-22-00197
Record Number:CaltechAUTHORS:20161130-133541821
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20161130-133541821
Official Citation:Ivanov, M.A., Abdrakhimov, A.M., Basilevsky, A.T. et al. Sol Syst Res (2014) 48: 391. doi:10.1134/S0038094614060021
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72452
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:30 Nov 2016 22:36
Last Modified:30 Nov 2016 22:36

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