Plume-ridge interactions of the Discovery and Shona mantle plumes with the southern Mid-Atlantic Ridge (40°-55°S)

We report on 66 Pb, Sr, and Nd isotope analyses of basalts dredged along the Mid‐Atlantic Ridge (MAR) from 40° to 55°S. The results strongly indicate interaction and mixing between the off‐ridge Discovery and ridge‐centered Shona mantle plumes and the ambient asthenosphere beneath the MAR. In additi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Journal of Geophysical Research 1999-02, Vol.104 (B2), p.2941-2962
Hauptverfasser:	Douglass, Jill, Schilling, Jean‐Guy, Fontignie, Denis
Format:	Artikel
Sprache:	eng
Schlagworte:	Earth sciences Earth, ocean, space Exact sciences and technology Internal geophysics Marine Solid-earth geophysics, tectonophysics, gravimetry
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!