Origin of the Apollo 17 deep drill coarse-grained layerA depositional model of the coarse-grained layer of the Apollo 17 deep drill is described which takes into account thermoluminescence, tracks, Na-22 and Al-26 studies. On the basis of this evidence, it appears that the coarse-grained layer was emplaced some 100 m.y. ago associated either with Camelot Crater or the Central Cluster craters; at that time it was capped by some 25 cm of material which were recently (about 2 m.y.) excavated. The resulting depression has partially and gradually filled since.
Document ID
19770051808
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Crozaz, G. (Washington Univ. Saint Louis, MO, United States)
Plachy, A. L. (Washington University St. Louis, Mo., United States)