Mineral chemistry of a zircon-bearing, composite, veined and metasomatised upper-mantle peridotite xenolith from kimberlite

The timing of mantle and crustal events

The timing of mantle and crustal events in South Namibia, as defined by SHRIMP-dating of zircon domains from a garnet peridotite xenolith of the Gibeon Kimberlite Province

✍ Anthi Liati; Leander Franz; Dieter Gebauer; C. Mark Fanning 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 611 KB

The Gibeon Kimberlite Province, southern Namibia, comprises numerous, 70-80 Ma old kimberlite pipes and dykes commonly containing abundant mantle and crustal xenoliths. We dated by SHRIMP II zircons from a garnet peridotite xenolith (Pipe Hanaus 1). The xenolith consists of garnet, orthopyroxene, cl