The fact that anorthosite occurs elsewhere in the solar system as well as in the Earth was demonstrated by the U.S. Apollo space program. The abundance of ancient anorthosite on the lunar surface (and perhaps in the lunar interior) establishes this rock type as a potentially important one in the formation of the earliest planetary crusts. Accordingly, lunar anorthosites have revolutionized thinking about crustal evolution in general, and have revitalized study of terrestrial anorthosites, both in their own right and as lunar analogs. Consideration of the origin of lunar anorthosites has broadened the scope of the “anorthosite problem”, but the questions to be answered (Sect. 1.3) remain the same for both lunar and terrestrial examples.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Extraterrestrial Anorthosites
Professor Lewis D. Ashwal
- Springer Berlin Heidelberg
- Chapter 7
in-adhesives, MKVS, Nordson/© Nordson, ViscoTec/© ViscoTec, Hellmich GmbH/© Hellmich GmbH