¹M. C. De Sanctis et al. (>10)*
¹Istituto di Astrofisica e Planetologia Spaziali, INAF, Via del Fosso del Cavaliere 100, 00133 Roma, Italy
*Find the extensive, full author and affiliation list on the publishers website

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Reference
De Sanctis MC et al. (2015) Ammoniated phyllosilicates with a likely outer Solar System origin on (1) Ceres. Nature 528, 241–244
Link to Article [doi:10.1038/nature16172]

¹Yann Sonzogni, ¹Georgiana Y. Kramer, ¹Allan H. Treiman
¹Lunar and Planetary Institute, Houston, Texas, USA

Clast 100 in regolith breccia 15295 could be a key to resolving the relationship(s) between mare basalts and lunar picritic glasses. The clast is basaltic, with texture, mineralogy, mineral compositions, and calculated bulk composition suggesting that it crystallized in a thick lava flow or shallow intrusive body from a very-low-titanium (VLT) basaltic magma. The estimated bulk composition of clast 15295,100 is primitive (i.e., magnesian) compared to those of known VLT basalts, and is very close to those of VLT picritic green glasses, especially the Apollo 14 A green glass. From these similarities, we infer that clast 15295,100 is a crystalline product of a picritic magma similar to the Apollo 14 A glass. Clementine and M3 remotely sensed data of the lunar surface were used to find areas that have chemical compositions consistent with those of clast 15295,100, not only near the Apollo 15 site, but in a broad region surrounding the site. Two regions are consistent with clast’s 15295,100 compositional data. The larger region is in southern Mare Imbrium, and a smaller region is in the eastern half of Sinus Aestuum. These locations should be considered as candidates for future missions focusing on sample science.

Reference
Sonzogni Y, Kramer GY, Treiman AH(2015) Petrology and provenance of a very-low-titanium picrite clast in lunar highland regolith breccia 15295. Meteoritics & Planetary Science (in Press)
Link to Article [DOI: 10.1111/maps.12579]
Published by arrangement with John Wiley & Sons