title: Anorthosite belts, continental drift, and the anorthosite event.
abstract: Most anorthosites lie in two principal belts when plotted on a predrift continental reconstruction. Anorthosite ages in the belts cluster around 1300 +/- 200 million years and range from 1100 to 1700 million years. This suggests that anorthosites are the product of a unique cataclysmic event or a thermal event that was normal only during the earth's early history.
authors.forename: N
authors.initials: N
authors.lastname: Herz