A major dyke swarm in the Ogaden region south of Afar and the early evolution of the Afar triple junction

Mège, D.; G. Purcell, P.; Bézos, Antoine; Jourdan, Fred; La, Carole

doi:10.1144/sp420.7

Public

A major dyke swarm in the Ogaden region south of Afar and the early evolution of the Afar triple junction

Published in Geological Society London Special Publications • May 13, 2015

Authors:

D. Mège

P. G. Purcell

Antoine Bézos

Abstract

Abstract Geological mapping in the Ogaden region of SE Ethiopia, integrated with aeromagnetic data, has revealed a large dyke swarm extending SSE more than 600 km from the southern Afar margin across the Somali Plate to the Ethiopia–Somalia border. 40 Ar/ 39 Ar age dating shows that emplacement occu...

Subject

Triple junction

Swarm behaviour

Geology

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