A review of lunar chronology revealing a preponderance of 4.34–4.37 Ga ages

Borg, L. E., Gaffney, A. M. and Shearer, C. K. (2014)

Meteoritics & Planetary Science. doi: 10.1111/maps.12373
article first published online: 24 NOV 2014


The preponderance of ages between 4.34 and 4.37 Ga reflect either primordial solidification of a lunar magma ocean or a widespread secondary magmatic event on the lunar nearside. The first scenario is not consistent with the oldest ages reported for lunar zircons, whereas the second scenario does not account for concordance between ages of crustal rocks and mantle reservoirs.