Feldspathic granulitic impactites and pre-final bombardment lunar evolution

Abstract

Attention is called to a group of rocks called feldspathic granulitic impactites. These samples are characterized by a high modal plagioclase content of between 70 and 80%. The samples are impactites in that they display a clast-matrix structure and are enriched in trace siderophile elements that are indicative of meteorite components.