title: Spinel troctolite and anorthosite in apollo 16 samples.
abstract: A spinel troctolite and an anorthosite from the Apollo 16 landing site represent contrasting types of "primitive" lunar cumulates. The two rock types probably formed from the same parent magma type, a high-alumina magnesian basalt, with the troctolite forming earlier by crystal settling, and the anorthosite later, possibly by flotation.
authors.forename: M
authors.initials: M
authors.lastname: Prinz
authors.forename: E
authors.initials: E
authors.lastname: Dowty
authors.forename: K
authors.initials: K
authors.lastname: Keil
authors.forename: T E
authors.initials: TE
authors.lastname: Bunch