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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28857
Title: Abundance and size-frequency distribution of boulders in Linné crater's ejecta (Moon)
Authors: PAJOLA, MAURIZIO 
POZZOBON, Riccardo
LUCCHETTI, ALICE 
Rossato, Sandro
Baratti, Emanuele
GALLUZZI, VALENTINA 
CREMONESE, Gabriele 
Issue Date: 2019
Journal: PLANETARY AND SPACE SCIENCE 
Number: 165
First Page: 99
Abstract: This paper presents the abundances and the size-frequency distributions (SFD) of the ejected boulders surrounding the Linnè crater, located on the Moon's Mare Serenitatis basin. By means of Lunar Reconnaissance Orbiter Camera high-resolution images we prepare a context geological map of the Linné crater as well as we identify ∼ 12000 boulders ≥4.4 m, with a maximum measured size of 30.8 m. The cumulative number of boulders per km<SUP>2</SUP> is fitted with a power-law curve with index -4.03 + 0.09/-0.10. By studying the radial ejecta abundances, we find that the largest ones are located within the first 2 km from the crater's centre, while few tens of boulders with sizes < 8 m are detectable above 5 km from the crater's rim. We find that the Linné proximal ejecta blanket is slightly asymmetrical, as indicated in the geological map too, showing a density increase in the NE-SW direction. This may be the result of an oblique impact emplacement of the original impactor, or it may be explained with a perpendicular impact in the Mare Serenitatis location, but on a surface with lunar basalts with different local mechanical properties. By exploiting our boulders size density as a function of the distance from the crater's centre, we derive a possible regolith thickness at the Linnè impact of ∼4.75 m, supporting similar values based on Earth-based radar and optical data in the Mare Serenitatis basin.
URI: http://hdl.handle.net/20.500.12386/28857
URL: https://www.sciencedirect.com/science/article/abs/pii/S0032063318302605?via%3Dihub
ISSN: 0032-0633
DOI: 10.1016/j.pss.2018.11.008
Bibcode ADS: 2019P&SS..165...99P
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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Pajola_et_al_2019_Abundance_and_SFD_ejecta_Linne_Moon.pdf[Administrators only]3.65 MBAdobe PDF
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