Elliptical structure of the lunar South
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Ian Garrick-Bethell; Maria T. Zuber
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Article
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2009
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Elsevier Science
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English
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The South Pole-Aitken basin (SP-A) is the largest and oldest basin on the Moon. The basin has usually been interpreted to exhibit a degraded circular structure, but here we demonstrate that the topography, iron and thorium signatures of the basin are well described by ellipses with axes measuring 24