Composition, structure, and age of the Apollo 16 subregolith basement as deduced from the chemistry of post-imbrium melt bombs

Details Composition, structure, and age of the Apollo 16 subregolith basement as deduced from the chemistry of post-imbrium melt bombs Composition, structure, and age of the Apollo 16 subregolith basement as deduced from the chemistry of post-imbrium melt bombs

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91...43b&link_type=abstract

(Lunar and Planetary Institute, NASA, AAS, et al., Lunar and Planetary Science Conference, 17th, Houston, TX, Mar. 17-21, 1986)

Astronomy and Astrophysics

Astronomy

3

Chemical Composition, Impact Melts, Lunar Evolution, Lunar Rocks, Microstructure, Apollo 16 Flight, Astronomical Models, Electron Microscopy, Glass, Lunar Craters, Regolith

Scientific paper

Irregularly shaped, slag-like impact-melt bombs with variolitic crystallization texture, mostly 1 to 10 cm in size, occur throughout the regolith of the Apollo 16 landing site. The authors have analyzed 16 samples from Stations 11 and 13 near North Ray Crater using the microscope, electron microscope , microprobe, neutron activation, and 40Ar-39Ar age-dating techniques. They discuss the question of whether these glasses reflect the regolith or the subregolith basement composition of the Cayley and Descartes Formations and are products of the post-Imbrium craters in the vicinity of the Apollo 16 landing site.

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